No one knows transmissions & torque converters like

Sonnax

No one knows transmissions & torque converters like 2008-sonnax-logo-white

Ts robothead 18in high trans rgb
Maybe it’s not the torque converter!

View Transmission Parts for Resolving & Preventing Torque Converter Problems

Nobody knows transmissions like Sonnax.

Sonnax transmission products are the number one choice of large transmission remanufacturers, quality valve body rebuilders, and veteran independent specialists around the world. Our innovative parts are designed to address the root cause of automatic transmission problems, allowing rebuilders to salvage valve bodies with highly effective repairs.

Which Sonnax Kit is Right for Your Rebuild?

Line Pressure Booster Kit Line Pressure Booster Kits

Affordable kit for big performance without a big price tag.

  • Affordable kit with no special tools or reaming required
  • Slightly stronger springs for a modest base line pressure increase
  • Larger boost valves for demand-based line rise without low-speed harshness
3d zip kit-box_2010-right-trans Zip Kits®

The first step in correcting common shift problems.

  • Installs quickly & easily without any special tools
  • Stops leaks so the valve body works the way it's supposed to
  • In-depth tech booklet for installation, plus diagnostics & repair
Line Pressure Booster Kit The Sure Cure®

Comprehensive kit for big problems you don't want back.

  • Restores OE shift quality
  • Repairs biggest trouble areas to reduce comebacks
  • Step-by-step instructions for comprehenseive valve/pump body restoration
Performance pack box 3-d right flat trans Performance Packs

The best parts for performance & heavy duty recalibration

  • Firmer shifts under load without low-speed harshness
  • Consistent recalibration results with tuning options
  • Improved durability
  • No special tools required

New Parts

Tool Kit Tool Kit
F-102741-TL16

Tool Kit for 102741-16K

Oversized 2-6 Pressure Control Valve Kit Oversized 2-6 Pressure Control Valve Kit
102741-16K

The 2-6 brake clutches in listed Hyundai/Kia units are applied in second and sixth gears in conjunction with other clutch packs. As the 2-6 pressure control valve oscillates and strokes over tim...

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Lockup Control Plunger Valve Kit Lockup Control Plunger Valve Kit
157740-37K

Toyota/Lexus vehicles equipped with AB60E and AB60F transmissions often exhibit TCC apply and release concerns, TCC or ratio codes, RPM surging, harsh downshifts, and overheated fluid. These pro...

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Tool Kit Tool Kit
F-33741B-TL11

Tool Kit for 33741B-11K

Oversized VSPV Valve Kit Oversized VSPV Valve Kit
33741B-11K

Audi vehicles equipped with late-style VW/Audi 01J transmissions commonly display symptoms such as slipping, pulley and push belt damage, ratio codes, and poor fuel economy. These concerns are o...

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O-Ringed TC Check Valve Kit O-Ringed TC Check Valve Kit
98892-29K

Overheating is a common problem in Honda/Acura vehicles equipped with four or five-speed transmissions. This condition can be caused by a worn or stuck TC check valve, which reduces working pres...

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Pump Flow Control Valve Pump Flow Control Valve
33510N-02

Jatco/Nissan CVT JF011E (RE0F10A) units often have trouble with slipping, delayed engagement and/or reduced pump output. Excess wear of the pump flow control valve allows crucial pressure loss t...

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O-Ringed TC Check Valve Kit O-Ringed TC Check Valve Kit
98892-32K

Overheating is a common problem in Honda/Acura vehicles equipped with five-speed transmissions. This condition can be caused by a worn or stuck TC check valve, which reduces working pressure in ...

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