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ATP Professional Auto Parts is a leader in automatic transmission replacement parts. Founded in 1955—back when no aftermarket manufacturers offered automatic transmission...
ATP Professional Auto Parts is a leader in automatic transmission replacement parts. Founded in 1955—back when no aftermarket manufacturers offered automatic transmission parts—ATP now offers a wide array of high-quality products for both automatic and manual transmissions. Summit Racing carries a huge selection of ATP Professional Auto Parts, including flywheels, flexplates, transmission pans, transmission filters, clutch forks and cables, ring gears, and more. Plus, we offer ATP’s transmission fluid additives, friction modifiers, and differential supplements. Whether you’re rebuilding an old...
ATP Professional Auto Parts is a leader in automatic transmission replacement parts. Founded in 1955—back when no aftermarket manufacturers offered automatic transmission parts—ATP now offers a wide array of high-quality products for both automatic and manual transmissions. Summit Racing carries a huge selection of ATP Professional Auto Parts, including flywheels, flexplates, transmission pans, transmission filters, clutch forks and cables, ring gears, and more. Plus, we offer ATP’s transmission fluid additives, friction modifiers, and differential supplements. Whether you’re rebuilding an old transmission or want to keep your current tranny running strong, ATP Professional Auto Parts can help you get the job done right.
ATP offers replacement flexplates in a variety of sizes, shapes, and configurations. The steel plates are manufactured to exacting tolerance for precise fit. Order the model recommended for your year/make, engine, and transmission application.
( 191 )
$13.99
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$137.99
ATP exhaust manifolds are high-quality replacements developed from the OE specs to ensure they'll install and perform like the originals. These manifolds are manufactured from premium metals, like cast iron and stainless steel. All models are machined to ensure that the flanges are flat, mount evenly, and do not leak. Hundreds of models are available for fitment on countless vehicle and engine applications. ATP exhaust manifolds are backed by a limited lifetime warranty.
( 98 )
$65.99
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$1,863.99
ATP timing covers are a crucial part of any engine. They allow for the proper lubrication of the timing chain and protect it from damage. Timing covers can become damaged from over-tightening or corrosion, causing engine oil leaks—and resulting in significant engine damage. ATP timing covers function and fit just like the original parts, ensuring long life and durability. Order the model recommended for your vehicle and engine application.
( 32 )
$37.79
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$265.99
ATP Challenge Y-headers are designed to better distribute high heat and vibration than factory headers. They are constructed from time-tested stainless steel materials to ensure the best product possible, for long-lasting dependability and performance. They are a superior design intended to handle more challenging driving conditions than daily drivers. So, if you're planning on taking your ride off-road and are looking for headers, ATP Challenge Y-headers are the perfect choice.
( 66 )
$203.99
AT-205 Re-Seal additive from ATP stops seal leaks in your engine, transmission, differential, and hydraulic systems (except for the brakes). Petroleum distillate rubber conditioners can temporarily soften rubber seals and then turn them to mush over time, thus causing leaks. It's best to avoid those petroleum products and use ATP AT-205 Re-Seal additive instead. It's easy to use and works fast! Try it today and see for yourself.
( 132 )
$15.99
ATP engine oil pans provide coverage for the most popular domestic and import vehicles. All applications will provide a great fit for an easier install. These steel oil pan replacements are available in a variety of OE sizes and configurations. They feature a protective powdercoat finish and include a drain plug.
( 12 )
$37.99
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$203.99
ATP Graywerks harmonic balancers offer 55 years of experience mixed with quality materials and workmanship. These units are made to meet or exceed the original equipment quality and SAE material specifications. Nodular iron or steel balancers are available. Each component is precision-machined, and assemblies are dynamically balanced for the best performance. Some models have degree markings and include Woodruff keys and mounting hardware (where necessary). Calm the vibrations in your ride with a new harmonic balancers from ATP, available for a wide range of vehicle and engine applications.
( 50 )
$41.99
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$894.99
ATP automatic transmission master repair kits enable you to conveniently rebuild and restore performance. They include everything needed to give your transmission new service life—including clutch plates, gaskets, seals, O-rings, and (depending on your application) they may include an oil filter, bushings, or even a vacuum modulator. If you have transmission work to perform, let the pros at ATP furnish the master repair kit designed for your model.
( 43 )
$112.99
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$765.99
ATP automatic transmission filter kits include everything you need for a fast, efficient filter change. They include all gaskets, filters, and other components that you might require. These replacement filters are specifically designed for your transmission; therefore, improper fitment is never an issue! Order the kit recommended for your application.
( 108 )
$7.99
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$124.99
ATP automatic transmission cooler flush is designed to effectively clean and degrease the transmission cooler and lines. Each canister includes a hose and fitting, and can be used for two or three complete flushes. The product contains no CFCs or mineral spirits, so it's completely biodegradable. Keep your tranny running smoothly with maintenance help from ATP automatic transmission cooler flush.
( 6 )
$27.99
ATP offers detent cables for a wide range of vehicle and transmission applications. These replacement kickdown cables connect the throttle mechanism to your transmission, just like the originals. Factory cables can bind, break, or become sluggish over time. ATP detent cables are an affordable remedy designed for a perfect fit and optimum performance.
( 98 )
$12.99
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$57.99
Service your automatic transmission with quality parts from ATP. Their shifter cables are available for many applications and meet or exceed OE standards. They are offered in more than a dozen lengths and configurations. Order the replacements recommended for your vehicle.
( 62 )
$23.99
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$222.99
Improve slow, sloppy shifts with the addition of ATP automatic transmission modulator valves. These valves will keep your transmission shifting on cue, according to load. ATP adjustable replacements allow you to optimize shift points to meet vacuum load and improve gas mileage and performance. A bad modulator valve can be bad news for your transmission. Get control of your transmission for proper shifting of increased or decreased engine vacuum loads. Replace improper working valves with ATP automatic transmission modulator valves.
( 45 )
$16.99
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$69.99
ATP Automotive provides one of the widest product offerings of automatic gear-shifting control products, including transmission wiring harnesses, for most import and domestic vehicles. ATP designs and manufactures them to meet or exceed the OEM specifications to properly control your drivetrain. Get exact-fit, no-compromise replacement parts when you order the ATP automatic transmission wiring harnesses designed for your application.
( 1 )
$28.99
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$209.99
ATP Automotive now offers the widest product offering of automatic transmission control products for the vast majority of import and domestic vehicles. ATP has the best coverage, as well as the highest-quality solenoids, pressure and speed sensors, pressure switches, wire harnesses, and vacuum modulators. ATP automatic transmission shift control solenoids are exact-fit, no-compromise replacement parts. They are manufactured to meet or exceed OEM specifications.
Not Yet Reviewed
$29.99
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$138.99
ATP speedometer drive gear housings act as a bearing and locator for the gear—and provide transition from gear to speedometer cable. These OE gear sleeves have been manufactured to GM specifications for fit, form, and function. They're compatible with a variety of transmission applications, including TH200, TH250, and TH350.
( 10 )
$19.99
ATP flywheels spin energy for your vehicle. These cast iron or steel wheels are available in several sizes and ring gear tooth quantities for a perfect fit and function. Manufactured to meet or exceed original equipment specs, they require no resurfacing. ATP flywheels are quality-built and priced right—a good choice for your stock replacement. Order the model recommended for your vehicle and engine application.
( 27 )
$83.99
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$303.99
ATP flexplate bolts are made of high-quality steel and meet or exceed all OE specifications. Most vehicles with automatic transmissions have flex plates that connect the engine and torque converter. Constant expansion and contraction of a flex plate over time can result in cracks or shearing of the flex plate—causing serious and expensive damage. Whenever a flex plate is replaced, it makes good sense to replace the bolts securing it. Order the replacement bolts recommended for your year/make and engine application.
( 3 )
$9.99
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$18.09
ATP replacement intake manifolds evenly distribute the incoming air to each of the cylinders. They ensure the proper amount of air is mixed with the proper amount of fuel, and they are ideal replacements for your vehicle's original component. They are manufactured to fit your vehicle, providing you with the same performance, durability, and service life you expect from the factory.
( 6 )
$80.99
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$183.99
ATP offers accelerator cables for hundreds of applications. These replacement throttle cables meet or exceed OE standards and will keep you moving forward. They're one of the most inexpensive, yet necessary repairs you can make. Order the length and other options recommended for your specific vehicle and engine—or just match up the OEM part number.
( 197 )
$8.99
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$107.99
ATP offers control shaft seals for a variety of applications. These replacements are engineered to fit and perform just like the original parts. The seals are ideal for rebuilds or routine maintenance. Ensure the continued reliable performance of your transmission system; update the control shaft seals with quality components from ATP.
( 15 )
$5.99
ATP keeps your flywheel spinning with new ring gears. These quality-built flywheel and flexplate ring gears meet and exceed OE specifications, so you're ensured a good fit and proper operation. Are you missing teeth? Replace your worn ring gear with ATP flywheel and flexplate ring gears, available for countless vehicle, engine, and transmission applications.
( 28 )
$15.99
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$68.99
ATP automatic transmission selector shaft seals will stop a leaking problem. These quality replacements are manufactured to meet or exceed original equipment specs, so you can be sure they fit and perform properly. Models are available for thousands of applications. Retain your transmission's fluid with shaft seals from ATP.
( 7 )
$5.99
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$9.99
Solve the rattling in your stick shift when driving with a new ATP clutch fork. As OE replacements, they are quality steel pieces available in three different finishes. ATP has been providing OEM parts for over 50 years, so when you need to fix a damaged clutch fork, replace it with the model guaranteed to fit and perform like the original.
( 32 )
$16.99
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$64.99
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