Availability
Showing In Stock Items. Show All 18 Items.
Summit Bucks
Sonnax heavy-duty remanufactured valve bodies are built to overcome chronic shift and converter clutch apply complaints. It provides firmer shifts and a moderately increased pressure curve to improve performance, especially in truck and towing applications. Numerous Sonnax valve upgrades are included to restore hydraulic clearances that lead to shift complaints, clutch distress, converter complaints and codes, solenoid issues and pressure problems. Line pressure rise has been moderately increased to overcome shift complaints, delayed engagements, and to increase holding power to the clutches. To guarantee the highest level of operational performance, this remanufactured valve body is tested on state-of-the art equipment to verify that solenoid feed, clutch, converter, and line pressures match or exceed OE specifications. Choose your preferred kit packaged for your transmission. The valve body includes the following: * Oversized TCC regulator valve and sleeve, and limit valve spring for firmer TCC application * O-ringed bore plugs and abuse plugs * New accumulator control valve and sleeve with spring * Oversized AFL line up * New forward accumulator piston and seal * New pressure switch manifold * New EPC solenoid * New TCC PWM solenoid Kit contents: * Remanufactured valve body * Separator plate * Upper case gasket plate * Lower valve body gasket plate * 1-2, 3-4 accumulator springs * EPC solenoid harness adapter for 2003 to later units * Sonnax line pressure booster kit
( 3 )
$372.32
Summit Bucks
Sonnax Zip kits are engineered to cure common problems associated with today's automatic transmissions. Sonnax Zip kits eliminate: * Burnt clutches * Line pressure instability * Loss of fuel economy * No line rise * Pressure loss * Shift concerns * TCC apply and release concerns * TCC codes * Pressure switch codes
( 11 )
$117.66
—
$178.59
Summit Bucks
Sonnax shift improver performance packs combine innovative heavy-duty performance calibration for firmer shifts under load without sacrificing low-speed drivability. The precision components in these kits upgrade your transmission for maximum achievement and durability by recalibrating pressures, recalibrating shift accumulation, and including improved parts for areas that commonly wear. They are suitable for any heavy-duty application and are a critical foundation for other upgrades when modifying the transmission for high performance use. Sonnax shift improver performance packs additional facts and features: * Shorter shifts, which get progressively firmer with load * Faster pressure increase and higher overall pressure for greater clutch/band holding power * Three ultra-reliable, patented, billet pinless accumulator pistons * Unique 1-2 accumulator spring combination for shifts with character * Improved high rpm pressure * Third accumulator valve gets the 2-3 right the first time, every time * Consistent results, no guessing on calibration * Prevents worn accumulators and separator plate * Optional TCC on-off conversion prevents excess TCC pressure
( 6 )
$205.10
Summit Bucks
Ford vehicles with C6 transmissions often have oil pan leaks. The original Ford C6 oil pans are made with thin-gauge steel. If the oil pan bolts are over-tightened, the flange at the bolt holes will warp and result in a poor gasket seal. Once the oil pan flange is distorted, it's difficult to repair and get a good seal. Sonnax automatic transmission pans are 25 percent thicker than OE, made of heavy gauge material and will resist warping at the bolt holes. The thicker flange will allow the bolts to be tightened enough to compress the gasket evenly and result in a good seal. Sonnax pans will withstand repeated assembly without damage.
( 4 )
$29.79
Summit Bucks
Sonnax thrust bearings are replacements for your worn automatic transmission bearings to aid in smooth operation and noise reduction. The bearings act as a guide to help limit any axial movement which can hinder performance. Manufactured to exceed OE specifications for superior quality even under extreme conditions, order the Sonnax thrust bearings best suited for your application.
( 4 )
$11.20
Summit Bucks
Transmission valve bodies only last so long. When it's time for replacement, you can spend extra green and get new, or buy Sonnax remanufactured valve bodies. To eliminate separator plate cracking or cross-leaking, Sonnax adds a 2-3 accumulator support plate before remanufacturing. Each core's disassembled, cleaned, updated, tested, and parts are replaced as necessary. These direct replacement units are electronically and hydraulically tested and include lockup and shift solenoids. Save some green, while still receiving premium parts, with Sonnax Remanufactured valve bodies.
( 2 )
$349.71
Summit Bucks
Sticking of bypass components, spring relaxation, or poor ball seat in Ford 4R100 and E4OD units will allow the bypass to open at lower cracking pressure. This reduces TCC (Torque Converter Clutch) apply pressure, cooler flow at the overdrive section, and radiator flow responsible for heat transfer. Sonnax automatic transmission cooler bypass valve kits allow the bypass valve assembly to be rebuilt, salvaging the OE fittings and maintaining cracking pressure at 70 to 75 psi. Features: * Hardened steel T-valve provides secure check ball seat and adequate bypass flow * New spring cracks open at 70 to 75 psi to provide lube if cooler is blocked or restricted * Hardened alloy steel check ball resists damage * Seven new O-rings provide positive seal for cooler circuit * Drop-in Zip Valve parts install quickly and easily Contents: * T-valve * Spring * Check ball * O-rings -- One small -- Two medium -- Two large -- Two extra-large
( 1 )
$16.74
Summit Bucks
Sonnax low sprag race and bearing kits are ideal replacements for lost or damaged components. They feature a thrust bearing, inner race, and 1.013 in. thickness. If you're looking for parts for your one-way clutch from an industry leader in cutting edge design, a Sonnax low sprag race and bearing kit fits the bill.
( 1 )
$29.76
Summit Bucks
Sonnax universal remanufactured valve bodies have been uniquely designed to fit a variety of '99-later Chrysler applications, regardless of OE checkball or solenoid configuration. The convenience of stocking one SKU number for various applications saves time, money and interchangeability confusion. The channel casting has been resurfaced to SAE recommended flatness and surface finish. The seasoned casting warpage is now eliminated, removing cross-leaks and manufacturing burrs that resulted in clutch distress and shift complaints. A new separator plate is also installed, along with gaskets, to seal the critical surfaces between the valve body and channel casting. Heavy-duty/high performance accumulator pistons with dual-guide seals are installed to prevent piston-to-bore scuffing and restore clutch pressures due to leakage. Patented Sonnax valves are installed to restore hydraulic pressures and eliminate shift complaints, trouble codes, converter concerns and overdrive clutch distress. Their patented accumulator cover plate—made from stronger, thicker material and secured with additional screws—is also installed to prevent flexing or breakage. To guarantee the highest level of operational performance, these remanufactured valve bodies are tested on state-of-the art equipment to verify that pressures match OE specification. Product notes: * One SKU fits all applications, saving time, money and confusion * Resurfaced OE channel casting eliminates warpage, burrs, and cross-leaks cost effectively * New separator plate and gaskets provide critical seal between cast surfaces * Patented Sonnax valves and pistons restore hydraulic integrity of circuits to eliminate shift complaints and clutch distress * Patented Sonnax accumulator cover plate stronger than OE to prevent flexing and breaking
( 2 )
$438.31
Summit Bucks
Sonnax offers stock flywheel and flexplate ring gears that are high-quality replacements for your worn or damaged original. They meet or exceed OE-specifications to ensure a good fit and proper operation. These ring gears are available for a variety of auto makes with either manual or automatic transmission.
( 1 )
$19.99
—
$64.99
Summit Bucks
Sonnax servo apply levers are made from billet 6061 T-6 aluminum forgings which are less susceptible to distortion and cracking than cast OEM levers. They are excellent as replacements for hard-to-find, OEM servo levers which are no longer in production. Sonnax direct replacements for the OEM Ford C6 E ratio (1.85) levers will provide firmer, cleaner shifts when used with Sonnax R code servo.
( 1 )
$55.51
Summit Bucks
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 )
$13.40
Summit Bucks
Sonnax converter limit valve kits can help minimize the need for costly transmission repairs down the line. These kits help prevent torque converter damage by limiting the amount of pressure applied to it during lockup, essentially safeguarding against "ballooning" or deformation of the converter, especially in performance vehicles with high line pressures, while maintaining proper transmission function without affecting drivability. This is achieved by precisely controlling the pressure applied to the torque converter clutch (TCC) apply circuit through a specialized valve design. Most converter limit valve kits are designed as "drop-in" replacements, allowing for a relatively simple installation process during transmission rebuilds. Select the kit designed specifically for your vehicle's transmission type to ensure proper fit and function.
Not Yet Reviewed
$24.00
Summit Bucks
Freshen the seals on your Sonnax pistons to ensure positive sealing and prevent piston contact and bore scuffing. Genuine Sonnax servo piston seal kits give you the extra replacement parts associated with your Sonnax servo pistons. These PTFE seals feature an improved design to conserve pump volume.
( 6 )
$69.48
Summit Bucks
Noticing some forward slip and/or delayed engagement with your GM automatic transmission? Sonnax accumulator pistons are direct replacements for OE plastic pistons and restore sealing integrity at the pin bore. The aforementioned issues, as well as burnt clutches and bands can be caused by loss of fluid. Deterioration at older aluminum piston pin bores due to repeated reciprocation and/or cracks in plastic accumulator pistons may be the cause. Avoid a costly valve body replacement by ordering a Sonnax accumulator piston.
( 2 )
$11.82
Summit Bucks
TCI Maximizer rebuild kits are ideally suited for off-road, towing, and other severe-duty applications. Each kit contains gaskets, seals, new premium-quality frictions, steels, a high-volume filter, and a drain plug. Also included are valve body recalibration modifications, which provide crisper shifts without the harsh feel found in kits designed for racing. Durability is improved because less heat is generated per shift than is associated with the OEM shift characteristics. TCI Maximizer rebuild kits also increase the torque capacity of the transmission to make towing or off-roading a breeze.
( 18 )
$341.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
