Transmission Parts

Browse all Sonnax transmission parts here, or use the filters below to find just what you are looking for.

Find a Distributor

Looking for Part Instructions?

View Sonnax Part Instructions

Enter a Sonnax part number below to view its instructions. For general reaming instructions, click here.

09D • TF-60SN • TF-80SC • TF-81SC • TR-60SN

Accumulator Piston Kit 39741-42K

Helps cure:

Severe wear at accumulator bores
Low clutch oil pressure
Low TCC pressure
Low EPC pressure

4L30-E • TH180 • TH180C (3L30)

Oversized Accumulator Pin Kit 54250-05K

Helps cure:

Burnt clutches & bands
Leakage at the accumulator pin bore

4T65-E

Line Pressure Booster Kit 4T65E-LB1

5R55S • 5R55W

Oversized VFS Modulator Control Valve Kit 56947J-19K

Fits either of 2 locations

Helps cure:

Flare shifts
Pressure control out-of-range codes
Low line pressure

U140E • U140F • U151E • U151F • U240E • U241E • U250E

Oversized Secondary Pressure Regulator Valve Kit 57917E-16K

Helps cure:

TCC apply & release concerns
TCC codes
Burnt converter
Lube failures

6F35 (Gen. 1) • 6F35 (Gen. 2) • 6F35 (Gen. 3)

Oversized Solenoid Pressure Regulator Valve 144740A-01

Helps cure:

Harsh shifts
Flare shifts
No 4th
No 5th
No 6th
Low clutch oil pressure

A4LD

O-Ringed End Plug Kit 56947-SML

Small

Helps cure:

Erratic shift timing
Low line pressure
Low throttle pressure
Delayed Reverse
Oil leaks

AOD

Boost Valve Kit 76990-04K

Large Ratio, Factory-Style Sleeve, No O-Rings

Helps cure:

Soft slide shifts
Delayed Reverse
Low line rise
Direct clutch failure

722.6

Outer Pressure Regulator Sleeve 68942-06

Fits bores containing OE PR valve with .512" dia. spool only (main image).

Helps cure:

No 2-3
4-3 Neutral
Soft shifts under load
Slip codes

A750E • A750F • A760E • A760F • A760H • A761E • A960E • A960F • AB60E • AB60F • U140E • U140F • U151E • U151F • U240E • U241E • U250E

Accumulator Piston Kit 57917E-19K

Helps cure:

Delayed engagement
Flare shifts
Forward slip
Burnt clutches

JR710E • JR711E • JR712E • RE5R05A • RE7R01A

TCC Control Valve Kit/Low Brake Switch Boost Valve Kit 63741-05K

RE5R05A: TCC control valve kit (1st and 2nd design casting only)
RE7R01A, JR710E, JR711E, JR712E: Low brake switch boost valve kit
Also fits TCC control bore in Hyundai/Kia A5SR1 and Subaru 5EAT.

Helps cure:

Lockup shudder
TCC cycling
TCC codes
Burnt converter
Harsh downshifts
Harsh engagement

RE5R05A

"A" or "B" Pilot Valve Kit 63741-13K

Fits either of two locations. Also fits Infinity RE5R05A, Hyundai/Kia A5SR1/2 and Subaru 5EAT.

Helps cure:

Delayed engagement
Erratic shifts
Flare upshifts & clutch distress
Delayed Forward
No Forward
Delayed Reverse
No Reverse
Premature TCC apply
Firm TCC apply

09D • 09G, 09K, 09M • 55-50SN • 55-51SN • 6F21WA • TF-60SN • TF-80SC • TF-81SC • TR-60SN

Solenoid Wire Connector Retainer 59947-60

Also fits AF23/33, RE5F22A, Volvo (AM6), Opel (AF40), Peugeot (TF80), Saab (AF40/6), Land Rover (TF80), Ford (AF21), Mazda (AW6A-EL).

Helps cure:

Broken solenoid connector

722.6

Oversized TC Lockup Clutch Regulator Valve Kit 68942-10K

Helps cure:

TCC apply & release concerns
TCC codes
Lube failures

722.6

1-2, 4-5 Overlap Control Sleeve Kit 68942-02

Helps cure:

1-2 Flare
Bump shifts
Harsh shifts
Slipping gears

↑