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ATI automatic transmission adjustable pressure regulator kits for the T-400 Super Pumps eliminate OEM boost valve and allows line pressure from 185 to 300 psi. The kit includes spring, spring seats, adjuster, set screws, nut, and instructions. Fine-tune transmission performance with an adjustable ATI pressure regulator.
( 1 )
$64.00
New EBC CSK clutch springs prevent damage from prolonged exposure to heat and wear. They are OEM upgrades and are 10 percent stiffer than stock. The lever will be slightly stiffer which can wear your hand out riding in heavy traffic, but in return the clutch engages smoother and faster with the stiffer springs making takeoff smooth and shifting faster and less effort to speed shift.
( 2 )
$53.88
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$59.28
Pro Circuit Racing clutch springs deliver several benefits. Knowing the constant heat and torque abuse that your clutch is subjected to, they designed their springs for increased clutch life, reduced slipping, and improved engagement. They will help to keep your bike's engine temperature down, and you'll notice a more consistent spring performance throughout time--crucial for controlling how efficiently your clutch turns power into acceleration. Whether your bike is off-road, stock, or modified, high performance Pro Circuit Racing clutch springs are must-haves.
Not Yet Reviewed
$54.95
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$90.00
Hinson Racing Hi-Temp clutch spring kits are race-proven! Developed to enhance the performance of any Hinson clutch component—as well as your stock clutch—the springs are manufactured from high-temperature steel to exceptional production tolerances. They're highly resistant to losing their strength, even due to the high heat of today's 4-strokes. Hinson Racing Hi-Temp clutch spring kits provide optimum hookup with minimum heat buildup. Order the set designed for fitment on your bike.
Not Yet Reviewed
$59.99
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$69.99
Sonnax Sure Cure automatic transmission rebuild kits are a comprehensive reconditioning package—featuring the best Sonnax products developed to help mechanics restore and enhance transmission performance. Sure Cure components are the same Sonnax parts sold individually to resolve common valve body complaints, as well as other transmission problems. The high-quality components in each Sure Cure kit will repair worn areas and protect the transmission against future damage. Plus, each kit comes with an easy-to-read, step-by-step installation guide that covers inspection and repair of the most critical areas of the valve body. Additional features and benefits: * Restore shift quality and reduce comebacks * Repairs biggest trouble areas to reduce comebacks * Includes step-by-step instructions for comprehensive valve/pump body restoration Kits Include: * Shims (2) endplay * Pump slide pivot pin * Throttle valve plunger valve kit * Shortened TV link * TV cable corrector kit * Seals D-ring servo * 1-2 or 3-4 accumulator spring * Servo release check valve kit * Reverse boost valve kit * Oversized pressure regulator valve * Pinless 1-2 or 3-4 accumulator piston kit * TV boost valve kit * Bushing pump * Bushing rear stator support * Checkballs
( 6 )
$100.75
Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together, providing progressive pressure increases as driving conditions become more demanding. Their springs are approximately 10 percent stronger than OEM and more conservative in impact than other aftermarket kit springs. Large ratio boost valves provide higher pressure incrementally and when it's needed the most. The combination of these springs and valves in the Sonnax hydraulic line pressure booster kits gives you the best of both worlds--a modest pressure increase at the low-end, with a high-end pressure that's equal to or greater than that of other aftermarket kit springs.
( 20 )
$57.98
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$86.79
When you need replacement release valves for your TCI trans-brake, go with the originator for a perfect fit. Their valve body components are direct replacements and ensure a perfect fit and operation. TCI offers replacement components for all of their trans-brake control valves to assist you with repair and maintenance. Some release valves include a spring, as well. Your valve body is the brain of your transmission, and your trans-brake allows you to achieve quicker and more consistent reaction times--keep it functioning effectively with proper care and TCI replacement trans-brake release valves.
( 1 )
$54.95
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$55.95
By far the best way to go, EBC DRC Dirt Racer clutch kits are total rebuild options, including all-driven lined plates and new springs to completely reset your clutch to the all-important original stack height from when the bike was new. DRC Dirt Racer clutch kits give smooth clutch take-up, using anti-swelling, alloy-impregnated, heavy-duty, cork-based facing for long-lasting and reliable clutch kits.
( 1 )
$54.97
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$112.06
Pro-X Racing complete clutch plate sets offer the best performance in powersports. Their sets contain complete packs of matched friction and steel plates, along with a set of clutch springs. Pro-X clutch plate sets deliver friction plates and steel plates manufactured to exact OEM specifications, mated with heavy-duty clutch springs that are approximately 10 percent stiffer, to provide you with the ultimate clutch performance. Get the most out of your powersports ride for your MX or ATV, install Pro-X Racing complete clutch plate sets.
Not Yet Reviewed
$89.99
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$109.99
Having trouble getting into gear? Your synchronizer could be worn. Crown Automotive offers manual transmission synchros to restore smooth, accurate shifts. They will prevent gears from grinding during engagement and facilitate optimum performance. You can choose from the wide selection of applications available. Renew your shifting performance—get your collar and gears in sync with Crown Automotive manual transmission synchros.
( 2 )
$68.99
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$121.99
Richmond Gear has you covered with any replacement parts that you may need. From backup switches to shifters, tons of parts are available for the service and maintenance of your Richmond Gear transmissions.
( 9 )
$54.99
Wilwood GS compact master cylinders have a re-buildable design featuring high-pressure diecast aluminum bodies with a protective E-coat finish. These master cylinders are available with an integrated reservoir or with a 7/16 in.-20 threaded inlet for a remote reservoir. The internal components have refined return spring and piston assemblies, assuring positive pressure control, along with a quick and complete release. Choose the bore size needed for your application.
( 48 )
$82.56
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$90.83
Summit Racing™ Governor recalibration kits allow you to raise or lower, relative to vehicle speed, the points where your transmission shifts. This is accomplished by a system of combining a variety of weights and springs in your governor, modifying the vehicle speed signal your transmission's shift valves receive. These kits can greatly improve the peak performance and enhance the drivability of the vehicle. They are very useful for transmission swaps, or if you have a car that is very light or has a low rear gear ratio. These kits also work great for bracket cars retaining an automatic 1-2 shift.
( 3 )
$89.99
VEGE has honed its remanufactured torque converter operation to optimize a steady outflow of a variety of products by using and adopting standard operating procedures to supply automotive, high-performance, heavy-duty, and industrial converters. VEGE torque converters incorporate the necessary upgrades to reduce failures. Areas that are known to fail such as pump and turbine blades are reset and re-enforced. The stators are completely disassembled and reloaded with new rollers and springs. Turbine hubs that have a high failure rate are replaced with billet steel hubs. Needle bearings are replaced with new ones and in most cases upgraded to heavy duty standards. VEGE torque converters are super balanced twice! Using state of the art Hines balancers all VEGE torque converters are checked for balance during the set up and tack and after final weld. This makes for a better dynamic running torque converter.
( 51 )
$85.50
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$98.99
Sonnax Line pressure booster kits allow you to shift aggressively and then feel the tranny grab the clutches with more power when it changes gear. The larger boost valves and matching regulator springs raise line pressure progressively as higher pressure is commanded. These kits modify the sensor signal, which causes the computer to create a pressure increase. They're installed between the pressure sensor and vehicle harness using OE-style sealed connectors; no modifications are needed to the transmission.
( 14 )
$82.70
Cure your adjustment woes with automatic transmission kickdown kits from Scott Drake. These reproduction kits are a direct fit for the specified application—ensuring exact shift points during the lifespan of your transmission with a properly adjusted throttle valve cable. The kickdown cables have plenty of flexibility, and the 9-piece kits include a cable, lever, spring, and bracket, along with all the hardware for simple installation.
( 5 )
$54.69
On Sale
Hays high-performance throwout bearings are designed to withstand the high spring pressure and high-rpm conditions common to racing clutches. They're heat-treated and Blanchard-ground to ensure trueness.
( 21 )
$110.95
$61.95
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$102.95
Vehicles with a GM 8L45 or 8L90 automatic transmission may exhibit high or low line pressure that results in harsh/soft shifts, burnt clutches, loss of cooler and lube flow, and overheating of the transmission and converter. These problems may be caused by wear of the pressure regulator bore casting at the VFS signal port area and/or at the shuttle valve sleeve. Wear at the inboard port of the pressure regulator bore allows VFS (throttle) signal pressure to leak, preventing proper action of the pressure regulator valve and potentially allowing it to remain in the low line pressure position. Wear of the shuttle sleeve due to continuous oscillation of the shuttle valve creates a path for balance line pressure at the pressure regulator valve to exhaust, resulting in excessive low line pressure. Sonnax drop-in pressure regulator and shuttle valve kits restore hydraulic integrity to the lineup by addressing wear that subjects the transmission to either excessively high or low line pressure with upgraded materials and unique designs. The pressure regulator valve has been designed with a lengthened spring pocket spool at the VFS signal port area, which provides over double the sealing capability to this critical end of the valve and allows it to operate in unworn portions of the bore. The length of the critical shuttle valve diameter has been significantly lengthened to provide better sealing and durability of the assembly. Additional details: * Hardcoat anodized aluminum valves and highly wear-resistant billet aluminum sleeve combat premature wear * Pressure regulator valve VFS signal spool 200 percent longer than OE and operates in unworn area of the bore * Critical shuttle valve spool made 30 percent longer than OE for added sealing and durability * Drop-in Zip Valve parts install quickly and easily Kit contents: * Pressure regulator valve * Spring * Shuttle valve * Shuttle sleeve
Not Yet Reviewed
$65.06
ACDelco GM Genuine Parts clutch release bearings disengage the clutch by pressing on the pressure plate diaphragm spring or release lever. These bearings are attached to a clutch release fork that is hydraulically or mechanically operated by the diver's clutch pedal. They are manufactured to provide the same performance, durability, and service life you expect from General Motors.
Not Yet Reviewed
$53.99
Continuous oscillation in relay valve and sequence valve bore causes wear that prevents proper hydraulic control. You can recover hydraulic control and renew 2nd and 4th gear operation by reconditioning the entire bore and installing a Sonnax oversized 4-3 sequence valve kit. These kits address wear on the inboard two spools that is increasingly more common in aging valve bodies. Wearing at these spools can allow valuable 4th servo feed leakage, resulting in no 4th and 2-4 band wear, and can also allow leakage of 2nd clutch oil needed to apply the 2-4 band in 2nd gear, resulting in poor 2nd gear shifts. Leaking at the OE end plug also allows oil loss that can leave 4th gear inoperable. Sonnax oversized 4-3 sequence valve kits feature hardcoat anodized aluminum valves to combat premature wear and O-ringed end plugs to help prevent 4th gear oil loss. Kit contents: * 3-4 relay valve * 4-3 sequence valve * Spring * End plug * Two O-rings (1 extra)
Not Yet Reviewed
$51.20
Listen up, performance enthusiasts—if you prefer automatics, you'll be interested in these torque converter lock-up kits from Chevrolet Performance. They're designed to adapt the 4L60 or 700R4 transmissions (non-electric version) in early-model GM vehicles. These transmission performance kits include a throttle valve spring for carbureted engines, a normally closed fourth gear clutch switch, a wiring connector for the torque converter, and an instruction sheet to facilitate the installation.
( 5 )
$85.70
GM 6L45, 6L50, 6L80 and 6L90 automatic transmission units may exhibit multiple line pressure and cooler/converter/lube flow problems due to excess wear in the pressure regulator bore. Deterioration at the balance spool end allows critical fluid loss, resulting in high line pressure, harsh shifts, and overheating due to reduced cooler/converter flow. Wear at the outboard spool robs converter feed pressure and lowers line pressure, resulting in soft shifts and burnt clutches. Installing a Sonnax pressure regulator valve kit restores the hydraulic integrity of these circuits for proper line pressure control in all ranges. A new pressure regulator valve outer spring is also included to replace weakened original springs and provide a modest 5 psi increase across the pressure curve. Additional details: * Hardcoat anodized aluminum valve combats premature wear * Lengthened critical spools operate in non-worn portion of bore for added stability and wear prevention * Annular grooves help center valve in bore to reduce future side-load wear * Drop-in Zip Valve parts install quickly and easily Kit contents: * Valve * Spring * Drill bit .040 in. * 2 checkballs (1 extra)
( 2 )
$62.55
Do you need a bushing or spring? A bracket or retainer? Scott Drake clutch linkage components will help you to service your clutch—including the equalizer bar and related parts. Small components can be just as important as larger ones, and many of Scott Drake's clutch linkage components offer the correct original designs for a hassle-free fit. They're especially useful for 1960s and '70s era muscle car applications.
( 23 )
$87.95
TransGo Performance offers solenoid repair kits for nearly a dozen automatic transmission applications, including models from Mopar and GM. Transmissions often come with contaminated governor pressure solenoids. This results in complaints of wrong gear starts, as well as governor solenoid and sensor performance codes. The computer uses the governor pressure solenoid to generate governor pressure relative to road speed, emulating what the hydraulic governor did in older 'RH' series transmissions. The computer varies the duty cycle to the PWM governor pressure solenoid to achieve the desired output pressure. Simultaneously, it monitors the feedback from the governor pressure sensor to confirm that the governor pressure is doing what it is commanded to do. When the solenoid sticks or is restricted, the computer notices that the pressure reading from the sensor does not match the desired governor pressure and sets a code which puts the unit in limp-in mode, resulting in 3rd gear start and no shift. These TransGo governor pressure solenoid repair kits contain everything you need to take apart the original equipment solenoids, restore the valve bore, then replace the spool valve, spring and cap with new ones. The repair kits include enough parts to rebuild multiple solenoids. The repair kits are available with or without tools. Order the model recommended for your transmission. * Corrects/Prevents/Reduces: -- Wrong gear start -- No upshift -- Governor pressure solenoid and sensor performance codes -- Limp-in mode
Not Yet Reviewed
$77.14
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