The Best Place to Buy Upgraded Transmission Parts Made by Sonnax is Here

Shop by Category

Shop by Brand

Sonnax

Quick view Details

Sonnax

700R4 4L60E 4L65E 4L70E SmartShell® Heavy Duty Reaction Shell Kit (1982-UP) Sonnax

MSRP:

Now: $118.50

Add to Cart
Quick view Details

Sonnax

700R4 4L60E 4L65E 4L70E Sun Gear Bushing - HD Wide (1982-UP) Sonnax

MSRP:

Now: $5.50

Add to Cart
Quick view Details

Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Pump Slide Spring (5-Pack) Sonnax

MSRP:

Now: $17.95

Add to Cart
Quick view Details

Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Pump Spring Spacer (10-Pack) Sonnax

MSRP:

Now: $7.75

Add to Cart
Quick view Details

Sonnax

700R4 4L60E 4L65E Forward Clutch Piston - Billet (1982-UP) Sonnax
Quick view Details

Sonnax

700R4 4L60E HD Planetary Rebuild Kit (1982-UP) Sonnax

MSRP:

Now: $109.95

Add to Cart
Quick view Details

Sonnax

700R4 TH200-4R Reverse Boost Valve Kit | Sonnax

MSRP:

Now: $32.95

Add to Cart
Quick view Details

Sonnax

700R4|4L60E Pressure Regulator Valve (1982-1992) Sonnax (Oversized) 77917-06

MSRP:

Now: $29.95

Add to Cart
Quick view Details

Sonnax

700R4|4L60E|4L65E Stator to Input Housing Shim Kit by Sonnax 77409-15

MSRP:

Now: $9.95

Add to Cart
Quick view Details

Sonnax

700R4|4L60E|4L65E|4L70E 1-2 3-4 Pinless Accumulator Piston Kit (1982-UP) Sonnax 77998-03K

MSRP:

Now: $13.95

Add to Cart
Quick view Details

Sonnax

722.6 Master Overlap Control Valve Sleeve Kit

MSRP:

Now: $64.95

Add to Cart
Quick view Details

Sonnax

722.6 NAG1 Regulating Pressure Control Valve Spring by Sonnax (1999 & Earlier)

MSRP:

Now: $8.95

Add to Cart
Quick view Details

Sonnax

722.6 Pump Body Bushing (1996-UP) Sonnax Upgrade

MSRP:

Now: $19.95

Add to Cart
Quick view Details

Sonnax

8L45 8L90 S1 S5 Clutch Control Valve Kit | Sonnax

MSRP:

Now: $46.95

Add to Cart
Quick view Details

Sonnax

8L45 8L90 S2 S3 S4 TCC Clutch Control Valve Kit | Sonnax

MSRP:

Now: $49.95

Add to Cart
Quick view Details

Sonnax

8L90 8L45 1-3-5-6-7 Accumulator Piston Kit

MSRP:

Now: $36.95

Add to Cart
Quick view Details

Sonnax

8L90 8L45 Bore Sizing Tool (Use w/ 154740-11K)

MSRP:

Now: $199.95

Add to Cart
Quick view Details

Sonnax

8L90 8L45 Bore Sizing Tool (Use w/ 154740-13K)

MSRP:

Now: $139.95

Add to Cart
Quick view Details

Sonnax

8L90 8L45 Clutch Control Valve Vacuum Test Tool Kit

MSRP:

Now: $79.95

Add to Cart
Quick view Details

Sonnax

8L90 8L45 Converter Feed Limit Valve Kit | Sonnax

MSRP:

Now: $69.95

Add to Cart

Quick view

Sonnax

700R4 4L60E 4L65E 4L70E SmartShell® Heavy Duty Reaction Shell Kit (1982-UP) Sonnax

Sonnax 700R4/4L60E/4L65E/4L70E SmartShell® Heavy Duty Reaction Shell Kit Part No. 77749-02K Solves Multiple Problems in All Performance Applications In GM 4L60, 4L60-E, 4L65-E and...

MSRP:

Now: $118.50
Add to Cart
Quick view

Sonnax

700R4 4L60E 4L65E 4L70E Sun Gear Bushing - HD Wide (1982-UP) Sonnax

700R4/4L60E/4L65E/4L70E Transmission Upgraded Wide Style Reaction Sun Gear Bushing by Sonnax Sonnax Part Number: 77010-01 WARNING Measure the sun gear bore. Installing this bushing into a bore that...

MSRP:

Now: $5.50
Add to Cart
Quick view

Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Pump Slide Spring (5-Pack) Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Transmission Pump Slide Spring Sonnax Part Number: 77722-01K Package of 5 Sonnax now offers a high performance pump slide spring 77722-01K for the 4L60, 4L60-E,...

MSRP:

Now: $17.95
Add to Cart
Quick view

Sonnax

700R4 4L60E 4L65E 4L70E TH200-4R Pump Spring Spacer (10-Pack) Sonnax

700R4 4L60E 4L65E 4L70E Transmission Pump Spring Spacer Sonnax Part Number: 77917-RV Package of 10 A common goal with GM 4L60-series transmissions is to increase pump volume or output, but a...

MSRP:

Now: $7.75
Add to Cart
Quick view

Sonnax

700R4 4L60E 4L65E Forward Clutch Piston - Billet (1982-UP) Sonnax

Sonnax 700R4 4L60E 4L65E 4L70E Billet Forward Clutch Piston Sonnax Part Number: 77764-01 The OE cast aluminum forward piston frequently breaks due to rough castings and high stresses. This billet...

View Details
Quick view

Sonnax

700R4 4L60E HD Planetary Rebuild Kit (1982-UP) Sonnax

700R4/4L60E Transmission Planetary Rebuild Kit Sonnax Part Number: 77731-RK Fits 4-Pinion Rear Planetary Units! The rear planetary assembly in GM 4L60 (700-R4) and 4L60-E transmissions frequently...

MSRP:

Now: $109.95
Add to Cart
Quick view

Sonnax

700R4 TH200-4R Reverse Boost Valve Kit | Sonnax

Reverse Boost Valve KitPart No. K77898 Large Ratio, O-Ring Style Vehicles with GM 200-4R and 4L60 transmissions often have problems with poor Reverse boost or upshifts in manual low. These are...

MSRP:

Now: $32.95
Add to Cart
Quick view

Sonnax

700R4|4L60E Pressure Regulator Valve (1982-1992) Sonnax (Oversized) 77917-06

A Sonnax 700R4/4L60 Pressure Regulator Valve. This valve is oversized and may require tooling to install.

MSRP:

Now: $29.95
Add to Cart
Quick view

Sonnax

700R4|4L60E|4L65E Stator to Input Housing Shim Kit by Sonnax 77409-15

Package Quantity: 10 Outer Dia.: 1.815" Inner Dia.: 1.240" Thickness: 0.015" Material: Steel Sonnax has designed a shim 77409-15 (.015" thick) to better help the needs of the...

MSRP:

Now: $9.95
Add to Cart
Quick view

Sonnax

700R4|4L60E|4L65E|4L70E 1-2 3-4 Pinless Accumulator Piston Kit (1982-UP) Sonnax 77998-03K

Symptoms: Burnt clutches & bands Poor shift quality Cause: Wear at the piston pin bore due to repeated reciprocation. Correction: The Sonnax patented pinless design with dual seals...

MSRP:

Now: $13.95
Add to Cart
Quick view

Sonnax

722.6 Master Overlap Control Valve Sleeve Kit

722.6 Master Overlap Control Valve Sleeve KitPart No. 68942-05K Continuous plunger valve oscillation causes wear at the overlap control valve sleeves, allowing modulated oil pressure to...

MSRP:

Now: $64.95
Add to Cart
Quick view

Sonnax

722.6 NAG1 Regulating Pressure Control Valve Spring by Sonnax (1999 & Earlier)

722.6 Regulating Pressure Control Valve Spring Mercedes 1999 and Earlier Models Sonnax 68942-01 The Mercedes 722.6 transmission is susceptible to a variety of drivability complaints, such as a...

MSRP:

Now: $8.95
Add to Cart
Quick view

Sonnax

722.6 Pump Body Bushing (1996-UP) Sonnax Upgrade

Sonnax has designed precision bushings to replace the pump bushing 68004-01 and the pump stator rear bushing 68915-01 in Mercedes and Jaguar units '96-later. These bushings are steel backed...

MSRP:

Now: $19.95
Add to Cart
Quick view

Sonnax

8L45 8L90 S1 S5 Clutch Control Valve Kit | Sonnax

8L45, 8L90 S1/S5 Clutch Control Valve KitPart No. 154740-13K Fits Either of 2 Locations! Burnt clutches and poor shifts are common issues with GM 8L45 and 8L90 transmissions. These issues...

MSRP:

Now: $46.95
Add to Cart
Quick view

Sonnax

8L45 8L90 S2 S3 S4 TCC Clutch Control Valve Kit | Sonnax

8L45, 8L90 S2/S3/S4/TCC Clutch Control Valve KitPart No. 154740-11K Fits any of 4 locations, S4 location fits '18-earlier...

MSRP:

Now: $49.95
Add to Cart
Quick view

Sonnax

8L90 8L45 1-3-5-6-7 Accumulator Piston Kit

1-3-5-6-7 Accumulator Piston KitPart No. 154740-15K In GM 8L45 and 8L90 transmissions, the 1-3-5-6-7 accumulator piston is utilized during apply of the 1-3-5-6-7 clutches to smooth engagement...

MSRP:

Now: $36.95
Add to Cart
Quick view

Sonnax

8L90 8L45 Bore Sizing Tool (Use w/ 154740-11K)

Sonnax bore sizing tool 154740-BST11 smooths and deburrs clutch control valve bores and may be needed to ensure proper clearance and function of Sonnax S2/S3/S4/TCC clutch control valve...

MSRP:

Now: $199.95
Add to Cart
Quick view

Sonnax

8L90 8L45 Bore Sizing Tool (Use w/ 154740-13K)

Sonnax bore sizing tool 154740-BST13 smooths and deburrs clutch control valve bores and may be needed to ensure proper clearance and function of Sonnax S1/S5 clutch control valve kit 154740-13K.

MSRP:

Now: $139.95
Add to Cart
Quick view

Sonnax

8L90 8L45 Clutch Control Valve Vacuum Test Tool Kit

The GM 8L45 and 8L90 clutch control valves have an inboard valve spool fed by a hole through the valve into the casting. This design makes vacuum testing the inboard spool and casting by traditional...

MSRP:

Now: $79.95
Add to Cart
Quick view

Sonnax

8L90 8L45 Converter Feed Limit Valve Kit | Sonnax

Recommended Tooling: 154740-TL22 GM 8L45 and 8L90 units may have TCC apply and release problems. Bore wear or a stuck converter feed limit valve can result in converter overheat, incorrect TCC apply...

MSRP:

Now: $69.95
Add to Cart