Tools/Maintenance

Park's Compact Crank Puller is used to remove Shimano Octalink, ISIS Drive and square-taper cranksets. It includes 2 rotating tips (16.3 and 11.3mm) to make the job easy. This is a great tool for your travel and home tool kit.

A professional quality shop chain tool that works on 5-speed to 12-speed Road and Mountain Bike derailleur chains*, including SRAM AXS 12 speed, as well as 1/8-inch and 3/16-inch chains. The CT-3.3 features an adjustable locating shelf so it works on any width chain to remove and install chain rivets. Built to last and easy to use, the CT-3.3 features a comfortable handle, investment cast steel body and replaceable driving pin (#CTP). *The CT-3.3 will install, but not peen, Campagnolo 11 and 12-speed chain rivets. - Comfortable T-handle - Replaceable driving pin (CTP) - Investment cast steel body - Adjustable locating shelf

- Highly versatile dry weather chain lubricant - Deep penetrating, durable P.T.F.E. chain lubricant - Hold up to extreme conditions which can destroy ordinary lubes - Comfort bottle with pipette system for ease of use and application

Clean Ride is White Lightning's legendary self-cleaning lube. By creating a dry, waxy film on your chain this lube doesn't attract dirt and grime like traditional oil based lubricants. Should dirt work its way onto your chain or gears Clean Ride's self-cleaning action is activated causing small particles of wax to break free, taking the riff-raff with it. Not only will you spend less time cleaning your chain, you'll enhance the lifespan of your drivetrain, too!

Park Tool's Deluxe Home Mechanic Repair Stand is a heavy-duty folding stand with your choice of shop quality clamps. Perfect for heavier duty home use or portable shop use, the PCS-4 features a rock-solid, four-point leg system that folds together for storage, steel powder-coated tubing, and a composite horizontal tube. • PCS-4-1 uses the 100-5C Adjustable Linkage Clamp. • Clamp rotates 360º and is adjustable in height up to 67” (170cm) • Adjusts quickly from 55" to 72" • Approximate weight 26 lbs (11.8 kg) NOTE: The maximum weight holding capacity of the PCS-4 is 45 kg (100 lb.). However, this assumes the weight is centered over the legs.

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-1 FEATURES - 4mm, 5mm, and 6mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

Park's Hex Wrench Set offers all the popular Allen wrenches (1.5, 2, 2.5, 3, 4, 5 and 6mm) in a convenient fold-up unit. The tool tips are chamfered for a positive grip and the one-piece fiber-reinforced-resin handle is light, comfortable, slip resistant and 40% stronger than steel.

To prevent poor shifting and uneven drivetrain wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with Park's Chain Checker. Simply insert the Chain Checker’s pins into 2 links, press the swingarm gauge tight, and then check the gauge window for an accurate reading!

- Ultra-Clean, waterproof formula chain lube designed for use in dry conditions - Surface active chemistry promotes smooth shifting under load, quiets chain noise and significantly improves life of drivetrain - Fast penetration and setup promotes a clean, trouble-free operating environment in dry, dusty conditions

Finish Line® Speed Degreaser™ is the fastest way to clean a bicycle drivetrain. Dry-degreasing technology requires no water rinsing as it evaporates rapidly after application to leave no residue. It's innovative turbo sprayer uses mechanical agitation to blast away contaminants from metal components. Speed™ is formulated with advanced solvents to quickly breakdown grease, grime, dust, and dirt. For most applications Speed™ requires no additional brushes or tools. Speed™ leaves no residue so lubricants can be applied to the chain immediately after application. • Dry-degreasing technology requires no water rinsing • Innovative turbo-sprayer blasts away contaminants • Advanced solvents breakdown grease and grime • Dries rapidly to leave no residue • Leaves bicycle chains clean and ready for fresh lubrication

The Masterlink Pliers is a multi-tool developed to provide functions that are not on a typical multi-tool. It is designed to be light and compact so you can carry it with you. This tool serves as a tire lever, valve core remover, valve stem lock nut wrench, and master link pliers. It also provides storage for two master links so you will always be prepared on the trail. Magnets hold the master links securely in place and self close the tool. - Weight: 38.5g - Size: 116 mm x 20 mm x 9 mm - Material: 7075-T6 aluminum - 9, 10, 11, and 12-speed master links and chains - Compatible with SRAM PowerLock Link, Shimano Quick-Link, KMC Missing Link and other similar master links

White Lightning's Epic Ride lets you take on that all day ride and hear only the birds chirping, not your chain squealing. Its unique formula features premium non-petroleum synthetics that provide unheard of durability without the grimey build-up common with synthetic oils. This versatile lube also works wonders on derailleur cables and suspension seals. And, good news for the forgetful amongst us, Epic Ride is lube-and-go, no prep or dry time required!

- PLUSH Suspension Oil - Formulated specifically for mountain bike suspensions - Designed for use in both forks and shocks - Reduces stiction and running friction - Consistent damping performance at any temperature - Proprietary additive system minimizes oxidation, corrosion and wear - Designed to protect seals and extend time between rebuilds

Finish Line® 1-Step™ is perfect for commuters and recreational cyclists seeking a quick and easy clean and lube solution. 1-Step™ loosens and removes surface grime, before leaving behind a clean, low-friction film of high-performance lubricant. 1-Step Cleaner & Lubricant helps prevent premature component wear, reduces pedaling friction, and eliminates drivetrain noise. It’s formulated with corrosion inhibitors that provide excellent rust protection in extreme conditions and coastal salt-air. 1-Step™ does not compromise on its ability to reduce pedaling friction over long intervals. • Fast and easy application • Cleans and lubricates chains in one simple step • Penetrates to flush out old lube and contaminants • Leaves behind a low-friction film of high-performance lubricant • Reduces friction, prevents chain wear, protects components • Can be applied to both clean or dirty bicycle chains • Provides maximum rust protection, even in salt-air • Ideal for commuters and cyclists on the go • Apply to bicycle chains before putting into storage

- Incredibly effective cleaning formula containing Nano Technology that also cares for your bike's delicate finishes - Contains no harmful acids, CFC's or solvents and is fully biodegradable - Cuts through dirt, oil and grime quickly and safely leaving your whole bike sparkling clean

Rock-N-Roll Gold lubricant is for both mountain and road bike use. The formulation goes deep down into the chain and traps any dirt. Then, with the energy of the chain freewheeling backwards, the dirt and grit floats to the surface so you can wipe it all off, leaving a new and clean application of lube inside the chain, where it's needed. - All-purpose lube - Cleans and lubricates simultaneously

Rock-N-Roll Absolute Dry lubricant is a super-clean chain lube that picks up little or no dirt. - For road bikes only

FRESH out the bowels of Muc-Off Research and Development comes the NEW Bio Grease! Designed specifically for bicycle use, Muc-Off Bio Grease possesses a unique formula that prevents corrosion and water ingress so your bike’s components will last long into the future! Use Muc-Off Bio Grease to increase your performance, and ensure every ride will be smoother than your last. Muc-Off *Biodegradable Bicycle Grease is specifically blended for the unique ‘low speed’ applications found on bicycle parts where reducing friction is paramount. This premium formulation is based on renewable resources, and has a combination of extreme pressure lubricity additives and natural ‘slip’ giving it unrivaled performance in its class! Bio Grease also has the added benefit of being readily biodegradable and extremely resistant to water wash off, which helps prevent corrosion, reduce friction and improve the performance of moving parts. The guys at Muc-Off are dedicated to making eco friendly products that won’t harm you, your bike or the planet and Bio Grease is no exception. This new grease is fully biodegradable and free from any nasty petroleum based oils! NOT for use on Bicycle chains *Only contents are biodegradable. - Prevents corrosion and water ingress so your bike’s components will last longer - Specially formulated for "low speed" applications unique to bicycle parts, where reducing friction is paramount - Extremely resistant to water wash-off, which helps prevent corrosion, reduce friction and improve the performance of moving parts - Fully biodegradable and free from petroleum-based oils

- PLUSH Suspension Oil - Formulated specifically for mountain bike suspensions - Designed for use in both forks and shocks - Reduces stiction and running friction - Consistent damping performance at any temperature - Proprietary additive system minimizes oxidation, corrosion and wear - Designed to protect seals and extend time between rebuilds

The Deluxe Wall-Mount Repair Stand easily mounts to any post or wall stud. This shop-quality stand places the bike approximately 14.5 inches from the wall, so you'll have plenty of work space. The awesome clamp is Park's Professional Micro-Adjust model, which features replaceable rubber jaws; fits seatposts and frame tubes from 7/8 to 3-inch diameter; includes recesses for cable housing and rotates 360 degrees for optimum bike positioning. This great stand lets you work on your bikes just like a pro and is built to last.

Rock-N-Roll Extreme is a very clean lubricant due to its ability to shed dirt and dust. - For mountain bike or wet road riding

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

A favorite of shop mechanics for over 30 year's, Park's CCP-22 Crank Puller removes crankarms that feature square tapers, and those that fit on Power Drive and Power Spline bottom bracket interfaces. The long, comfortable, built-in handle and fine thread provide the leverage needed to remove even the tightest crankarms. And, there's a rotating tip to ensure smooth operation and long life.

• Updated to be stronger, smoother, and more versatile • Features a new material and redesigned tip for easier entry into just about any tire, including tubeless • The unique design lifts the tire away from the rim and features a spoke hook to use when multiple levers are needed • This set includes 3 tire levers

SRAM's Butter Grease is a Slickoleum lube recommended for fork bushings, Roam and Rise wheel rear hub pawls and Reverb seat post service. Keep your parts working smoothly!

- Same award-winning Nano-Tech cleaner in a concentrated form - One 500ml Pouch will make 2x 1L nano-tech cleaner bottle - Can be used as a powerful degreaser in its concentrated form - Works really well in a chain cleaning device like Muc-Off X-1 - Safe on all bike parts or all bike frame materials

- PLUSH Suspension Oil - Formulated specifically for mountain bike suspensions - Designed for use in both forks and shocks - Reduces stiction and running friction - Consistent damping performance at any temperature - Proprietary additive system minimizes oxidation, corrosion and wear - Designed to protect seals and extend time between rebuilds

Park's BBT-18 is a heavy duty, investment cast tool for installing and removing all Shimano, ISIS Drive, and ISIS Overdrive 8-notch bottom bracket cups.

Park’s Professional Cable And Housing Cutter is specifically for use on derailleur and brake cables and housing. It even makes quick work of hard-to-cut shift-cable housing. Its cold-forged, heat-treated-steel handles won't bend and its precision-ground jaws cut perfectly every time. Its dual-density molded grips are specially contoured for superior comfort and control. Plus, there’s a built-in cable-end crimper and a forming hole for reforming housing ends.

Hydrodynamic Chain Lube is the ultimate in bicycle chain lubricant technology. If you are looking for the most efficient chain lubricant formula for long distances and/or the harshest of weather conditions, look no further. - Ideal for Road Cycling and Cyclocross - Provides the ultimate performance in both wet and damp or dry and dusty conditions - Petroleum free formula for eco protection - Synthetic polymers for long distance performance - Incredible durability - Pipette system for easy application

Removes Presta and Schrader valve cores. CNC machined, anodized finish with laser-etched logo. Fits between spokes for quick and easy core removal. Features knurled end for a no-slip grip.

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

The ultimate trailside companion. These high tensile steel multi-tools feature a precise fit and finish and side grips for a secure handhold even with gloves on. The m17 includes: Chain tool: 8/9/10 speed compatible Spoke wrench: #0, 1, 2, 3 Hex wrenches: #2, 2.5, 3, 4, 5, 6, 8 Open wrench: 8mm, 10mm Screwdrivers: Phillips #2, flat #2 Torx: t-25 Length: 89 mm Weight: 168g Warranty: Lifetime

Park's Gear Clean Brush has a handle on one end with a curved, serrated edge perfect for cleaning between cassette cogs. The other end's tough nylon bristles are ideal for cleaning the derailleurs, chain and other drivetrain parts to keep them clean and prevent premature wear. It also works great on brakes and other components that collect dirt and grime. The GearClean easily fits in a toolbox or pack.

An economical option for safely and accurately tightening fasteners to proper torque specifications. With a simple gauge readout, the TW-1.2 is intuitive and easy to use, and applies up to 14 Nm of torque to any fastener or component with left or right-handed threads. Perfect for low-torque applications such as stem bolts, levers, and carbon fiber components. 3/8" drive for compatibility with all Park Tool sockets, bits, and crow feet. - 0 to 14 Newton meter (0 to 140 inch-pound) range - 3/8" drive - Reads and registers torque values for both left hand and right hand threading - Length: 11.5" (292 mm)

Finish Line's Super Bike Wash quickly cleans dirt, clay, road grime and chain gunk off your bike. Five different cleaning agents work together to create a high-speed cleaning system. Three different rust and oxidation inhibitors protect metal surfaces to prevent rusting. It's safe for all bike surfaces.

Many chains use a master link that allows the chain to be installed and removed by hand. While master links don't require traditional chain tools, over time, dirt and corrosion can make it difficult to separate them by hand. Park's Master Link Pliers make removing and installing these master links quick and easy. Simply insert the specially sized jaws into the link and squeeze the vinyl-coated handles!

Park's Heavy-Duty Tire Levers handle the toughest tire-and-rim combinations including difficult downhill and freestyle tires. Their specially designed tips engage the tire bead so it can be removed with just two levers. Plus, these beefy, forged-steel levers are a full 8-inches long for superior leverage.

Park's Valve Core Tool is great for tightening, removing and installing Schrader and Presta valve cores (the cores are inside the valve), and also Presta valve extenders that have 5mm wrench flats. It's a handy tool to save a tube when all that's wrong is a broken valve, and it also lets you remove valves to easily insert sealant.

- Highly versatile dry weather chain lubricant - Deep penetrating, durable P.T.F.E. chain lubricant - Hold up to extreme conditions which can destroy ordinary lubes - Comfort bottle with pipette system for ease of use and application

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

Park's I-Beam Mini Fold-Up Hex Wrench/Screwdriver/Torx Set with Chain Tool includes 1.5, 2, 2.5, 3, 4, 5, and 6mm Allen wrenches, a socket 8mm Allen, a regular screwdriver, a T25 Torx tool (for disc-rotor bolts), a tire lever, spoke wrenches and a chain tool. The I-Beam conveniently fits in pockets and packs, too.

"A full-featured bicycle workstand designed and built for the home mechanic. The PCS-10.3 includes Park Tool's tried and true cam-actuated micro-adjustable clamp design for quick one-handed entry and exit, as well as a quick-release height adjustment lever for easy, secure adjustment. Features 18"" (460 mm) of height adjustment and 360 degrees of clamp rotation, positioning all parts of the bike within reach for any mechanic whether seated or standing. The stand's all-steel construction with teardrop-shaped tubing ensures maximum rigidity and stability, with tubular support braces, a locking support yoke, and upgraded internals for extra dependability. The PCS-10.3 is able to hold up to 80 lbs. (36 kg), which allows for compatibility with virtually all two-wheeled pedal-driven bicycles, including fat bikes and most e-bikes. The PCS-10.3 features an integrated height-adjustable parts tray, as well as accessory ports for the Park Tool #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately), so your tools and small parts are always within reach. Quickly folds down for storage and transport with a smooth-operating leg support system that pulls both legs up in one simple motion. The PCS-10.3 is the perfect way to upgrade your home shop—a stable way to hold nearly any bike off the ground for adjustments, cleaning and repair. NOTE: The maximum weight capacity of the PCS-10.3 assumes the weight is centered below the clamp and between the legs.? - Cam-actuated micro-adjustable clamp fits 7/8"" to 3"" (22 mm–76 mm) diameter tubes and seat posts of any shape and material, including aero posts and dropper posts - Narrow clamping jaws (2.7""/70 mm) fit into tight areas or on short seat posts - Rubber saddle pad allows bikes to be hung by the saddle for quick adjustment or storage - Durable, textured powder coat finish - Integrated height-adjustable parts tray - Height adjustment collar features accessory ports for compatibility with the #106 Work Tray or PTH-1 Paper Towel Holder (both sold separately) - Maximum weight capacity*: 80 lbs. (36 kg) - Height adjustable from 39"" to 57"" (990 mm–1450 mm) using convenient quick-release lever - Base when open forms a triangle of 36"" x 36"" x 48"" (920 mm x 920 mm x 1210 mm) - Folds down to 45"" x 14.5"" (1140 mm x 370 mm) - Weight: 16 lbs. (7.2 kg)"

200 Hour/1 Year Service Kit (Includes Dust Seals, Foam Rings, O-Ring Seals, Damper Sealhead, Air Spring Sealhead) - Boxxer RC C1 (2019)

T-handle screwdriver: The ideal handle shape to allow high torque transmission in difficult tightening and loosening situations. The ergonomic shape of the handle fills the palm of the hand well, the fingers lie safely in the soft rounded handle recesses. The whole hand makes contact with the handle and friction losses between the hand and the handle are avoided. Special surface treatment of the blades for high corrosion protection and an optimum fit in the screw head. - T-handle screwdriver for the transmission of particularly high tightening and loosening moments - Ergonomic 2-component handle with finger handle recesses and pleasant surface feel for very high power transmission and fatigue-free working. - With Rapidaptor technology for lightning-fast bit changes - Bitholders, magnetic, for easier application of the screw

Wera Micro screwdriver set for precision mechanical work. Rapid twisting results from fixing the hand on the head and using the fast-turning zone just below, making time-consuming grip adjustments unnecessary. Store and transport in the belt pouch so the tool is always at hand. - Kraftform Micro set in a belt pouch - Kraftform Micro handle for fast and ergonomic working - The Wera Black Point tip offers an exact fit and corrosion protection - Holding function for Torx screws - "Take-it-easy" tool finder: color coding according to profile and size

Smart Design - Interlock the levers to create a MissingLink opener. Remove single to 12-speed MissingLinks with ease. Ergonomic - Accurate and comfortable design allows you to quickly insert the opener into the chain for MissingLink removal. Durable Flexibility - Made using Swiss polymers specially formulated for the perfect balance of rigidity and flexibility. Semi-gloss finish helps prevent scratches on your bike. Multi-Functional - Separated, the MissingLink Opener becomes easy-to-use tire levers and a deflating tool. Super-Portable - Stackable. Saves space.

The Bottom Bracket Gauge Tool was designed to provide all the necessary measurements to identify the proper bottom bracket for a specific bike configuration. A metric scale runs along the long edges for measuring bottom bracket shell width and crank spindle lengths. Durable red anodized aluminum with laser etching. Overall size is 7" x 3" x 0.125". The gauge can measure: - bottom bracket width - bottom bracket shell inner diameter - crank spindle length - crank spindle diameter - bearing inner diameter Specifications: Measures crank spindle diameters: 22mm, 24mm, 29mm, 30mm Measures bearing inner diameters: 22mm, 24mm, 29mm, 30mm Measures bottom bracket shell inner diameters: 37mm, 41mm, 42mm, 46mm Measures bottom bracket shell widths: 61mm, 68mm, 73mm, 79mm, 86.5mm, 90mm, 92mm, 95mm, 100mm, 120mm, and 132mm Measures crank spindle lengths up to 180mm

The Muc-Off Ultimate Bicycle Cleaning Kit covers all the bases when it comes to cleaning, protecting and lubing your bike. This kit isn't style specific either with all the essentials for Road, Cyclocross, MTB and the daily commute. Complete with our award winning Bike Cleaner, Microcell Sponge, Soft Washing Brush, Detailing Brush, Two Prong Brush, Microfibre Cloth, Drivetrain Cleaner, Bike Spray and Bio Wet Lube, this kit is the perfect Birthday or Christmas gift for any bike fanatic! NB: To maintain performance of all brushes avoid use with boiling water and on hot parts. We recommend using warm water and allowing all hot parts to cool before use. - Nano Tech Bike Cleaner for quick, easy cleaning - Bio Drivetrain Cleaner for fast, effective drive chain degreasing - Assorted Muc-Off brushes and sponge for deep cleaning - Bike Spray for ultimate, post-wash protection - Tool Box included for convenient storage - Bio Wet Lube included for incredible drive chain efficiency - Includes Premium Microfiber Cloth for easy drying - Perfect gift for any bike lover

- Pro bleed kit for mineral oil brakes - Includes 2 syringes/2 M4 fittings, bleed block, Torx tool, crowfoot

Compact tubeless tire repair kit with machined aluminum storage tube that doubles as a handle. Combined tire reamer and insertion tool. Includes five tire plugs. - Weight: 47g

DOT 5.1 Brake Fluid, 16 OZ Bottle. Viscosity-stable across highest range of operating temperatures.

To adjust preload on Hollowtech II cranksets

Park's Cone Wrenches are made of durable tool steel and are nice and thin to fit on the small-clearance cones found on hubs and other bearing assemblies. Plus, they work as regular wrenches, too. They feature Park's special Y heads that put more material where it's needed for excellent durability and strength. Most applications require at least 2 cone wrenches. If you have questions please contact us and we can recommend the correct sizes for your needs.

Incredibly compact set arrangement with many tools in a minimum of space. A completely new ratchet set feeling with unique textile boxes that are very robust and durable. They can be positioned upright for tidy storage on the workshop shelf. Additional surface protection due to textile outer material. Low weight and volume for simpler mobility. - Convenient direction change thanks to switchover lever - Extremely slim ratchet with long lever - Return angle of only 5 degrees - Take-it-easy tool finder: color coding by size

- Dual-density, ergonomic thermoplastic handles for comfortable grip and leverage. - Heat-treated tool steel construction for strength and durability. - Includes: #1 and #2 Phillips plus 4.5, 5.5, and 6.5mm flat-blade screwdrivers and storage pouch. These professional grade screwdrivers are designed for ease of use, comfort, and lasting durability. This five piece set provides the sizes required to work on all bicycles. Backed by Pedro's lifetime warranty.

Park's Crank Puller is for removing crankarms on Shimano's splined, oversize, pipe-billet bottom brackets. It employs a long handle and a fine thread for the leverage and torque needed to remove tight arms. Park's unique rotating tip ensures smooth operation and long life. (The CCP-44 does not fit standard square or tapered bottom brackets.)

Park Tool's Derailleur Clutch Wrench is a small, thin wrench with 5.5mm and 3mm openings designed to fit the rear derailleur clutch tension adjuster on Shimano XT, SLX, Deore, Saint and Zee rear Shadow Plus (+) derailleurs and all previous Shadow Plus models.

- 150lb holding capacity - Includes work tray (#105) (900119-01) - Base not included (900706)

The BK-UK includes six new and revised parts for the Park Tool BKD-1 and BKM-1 Hydraulic Brake Bleed Kits, allowing for compatibility with the latest brake models from popular manufacturers. Includes: - Part #2600A (x2) — M4 x 0.8 adaptor for use with SRAM DB8, Trick Stuff, and Campagnolo mineral oil brake systems - Part #2588.2 — Thin-walled hose compression sleeve for internal bleed nipples, such as those found on Shimano mineral oil brake systems - Part #2574A — Hose assembly with integrated fitting for bleed nipples such as those found on Shimano mineral oil brake systems - Part #2615-2 (x2) — 11 mm bleed blocks for use with Hayes DOT brake systems All parts also available individually. NOTE: The seals on each part are designed for one type of fluid — DOT fluid or mineral oil — and should be used only on the systems they were intended for. DOT fluid and mineral oil should never be mixed in the brake system or in their respective service tools. Cross-contamination of brake fluid may cause seal failure which may result in brake failure.