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

Precision International

Aftermarket

OEM

Raybestos Powertrain

Sonnax

Alto Products Corp

Steel Plates

TransGo

Superior Transmission Parts

Motorcraft

View all Brands

Precision International

Aftermarket

OEM

Raybestos Powertrain

Sonnax

Alto Products Corp

Steel Plates

TransGo

Superior Transmission Parts

Motorcraft

Global Transmission Parts

Central Valve Bodies

Quality Used Hard Parts

Adapt-A-Case

AC Delco

ATSG

Torque Converters

Rostra Precision Controls

Circle D Specialties

TCS

Reid Racing

BorgWarner

Exedy

Rebuilt OEM Pumps

Mopar

Dura-Bond

Fitzall

LubeGard

Koyo

Optimum Maintenance Services, LLC

Recon Torque Converters

CVC

Federal Mogul

Hayden

Remanufactured OEM Part

Dorman

RatioTek

Atec Trans Tool

Transtec

ZF Friedrichshafen

Asin

DEUTSCH

Idemitsu

Streetside Tools

TRANSBRITE

View all Brands

Home
Sonnax

Quick view Details

Sonnax

6L45, 6L50, 6L80, 6L90 or GEN1(2007-2012) 6T70 and 6T75 TEHCM Pressure Switch Install Tool

MSRP:

Now: $27.95

Add to Cart
Quick view Details

Sonnax

6L80 3-5-R High Capacity Apply Ring

MSRP:

Now: $74.95

Add to Cart
Quick view Details

Sonnax

6L80 6L45 6L50 6L90 Actuator Feed Limit Valve Kit (2006-2018)

MSRP:

Now: $44.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 4-5-6 Clutch Backing Plate
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 6T45 Compensator Feed Regulator Valve Kit

MSRP:

Now: $84.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 Center Support Seal Kit

MSRP:

Now: $84.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 HD Pump Vane

MSRP:

Now: $2.45

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 HD TCC Regulator Valve Spring (Pack of 5)

MSRP:

Now: $32.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 Line Pressure Booster Kit

MSRP:

Now: $40.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 O-Ringed End Plug Kit

MSRP:

Now: $17.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 Ovresized Converter Feed Limit Valve

MSRP:

Now: $27.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 Pressure Regulator Valve Kit (Changing to 104520-15K)

MSRP:

Now: $31.95
Quick view Details

Sonnax

6L80 6L90 6L45 6L50 Pump Boost Valve Kit

MSRP:

Now: $28.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 6L50 6L45 Oversized Pressure Regulator & Boost Valve Kit by Sonnax

MSRP:

Now: $71.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 HD Pump Slide Spring

MSRP:

Now: $9.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 High Capacity 4-5-6 Clutch Apply Piston Kit

MSRP:

Now: $159.95

Add to Cart
Quick view Details

Sonnax

6L80 6L90 Lube Dam For Output Planetary (2006-UP)

MSRP:

Now: $29.95

Currently Out of Stock
Quick view Details

Sonnax

6L80 6L90 Torrington Bearing Kit

MSRP:

Now: $109.95

Add to Cart
Quick view Details

Sonnax

6L80 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft | 9-1/8'' Tall

MSRP:

Now: $1,050.00

Add to Cart
Quick view Details

Sonnax

6L80|6L90 1-2-3-4 Clutch Piston HD (2006-UP) Sonnax

MSRP:

Now: $92.95

Add to Cart

Quick view

Sonnax

6L45, 6L50, 6L80, 6L90 or GEN1(2007-2012) 6T70 and 6T75 TEHCM Pressure Switch Install Tool

This tool kit is used to install the TEHCM Pressure Switch manifold plastic diaphragm's on the 6L45, 6L50, 6L80, 6L90 or GEN1(2007-2012) 6T70 and 6T75 transmissions.

MSRP:

Now: $27.95
Add to Cart
Quick view

Sonnax

6L80 3-5-R High Capacity Apply Ring

Sonnax high capacity 3-5-R apply ring 104548-01 for GM 6L80 units is shorter than the OE apply ring. When the Sonnax apply ring is installed and the OE waved plate is eliminated, this allows for one...

MSRP:

Now: $74.95
Add to Cart
Quick view

Sonnax

6L80 6L45 6L50 6L90 Actuator Feed Limit Valve Kit (2006-2018)

GM 6L45, 6L50, 6L80 and 6L90 units often suffer from shift abnormalities caused by excess wear in the actuator feed limit (AFL) bore. This wear prevents proper regulation of oil pressure supplied to...

MSRP:

Now: $44.95
Add to Cart
Quick view

Sonnax

6L80 6L90 4-5-6 Clutch Backing Plate

GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to flexing and bowing of the backing plate (coning), especially when clutch apply pressures exceed OE...

View Details
Quick view

Sonnax

6L80 6L90 6L45 6L50 6T45 Compensator Feed Regulator Valve Kit

Listed GM transmissions incorporate a low-pressure compensator feed circuit to assist clutch return springs during release of rotating clutches. After clutches disengage, the compensator feed circuit...

MSRP:

Now: $84.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 Center Support Seal Kit

The rubber seals between the center support in the case and the machined surface of the valve body are prone to leakage over time. In GM 6L45, 6L50, 6L80, 6L90 units, this can result in continuous...

MSRP:

Now: $84.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 HD Pump Vane

Quality replacement Sonnax pump vanes 76742 available for rebuilding GM 6L45, 6L50, 6L80 and 6L90 pump rotors. Cost-effective alternative to replacing entire pump rotor...

MSRP:

Now: $2.45
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 HD TCC Regulator Valve Spring (Pack of 5)

CONTAINS SET OF 5 SPRINGS Vehicles with GM 6L45, 6L50, 6L80 and 6L90 transmissions may have complaints of vibration, shudder or roughness, particularly while driving at low speeds with a steady...

MSRP:

Now: $32.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 Line Pressure Booster Kit

Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving...

MSRP:

Now: $40.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 O-Ringed End Plug Kit

Contains 6 Plugs & 9 O-rings The primary design function of the OE end plugs is to prevent critical pressure loss by capping the bore; it also performs a secondary function as a spring stop or...

MSRP:

Now: $17.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 Ovresized Converter Feed Limit Valve

Requires Tooling: F-104520-TL11C VB-06 VB-FIX GM 6L45, 6L50, 6L80, 6L90 units may have TCC apply and release problems. Bore wear or a stuck converter feed limit valve can result in converter...

MSRP:

Now: $27.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L45 6L50 Pressure Regulator Valve Kit (Changing to 104520-15K)

104520-15K is superceding 104520-14K. 104520-14K will no longer be manufactured and once stock is out there will be no more. GM 6L45, 6L50, 6L80 and 6L90 units may exhibit...

MSRP:

Now: $31.95
Quick view

Sonnax

6L80 6L90 6L45 6L50 Pump Boost Valve Kit

Vehicles with 6L45 6L50 6L80 6L90 transmissions may exhibit insufficient line rise in drive ranges, soft shifts and/or burnt clutches. These problems may be caused by continuous oscillation of the...

MSRP:

Now: $28.95
Add to Cart
Quick view

Sonnax

6L80 6L90 6L50 6L45 Oversized Pressure Regulator & Boost Valve Kit by Sonnax

6L80 6L90 6L50 6L45 Oversized Pressure Regulator & Boost Valve Kit by Sonnax Part No. 104520-16K Tooling Required: VB-06 VB-FIX F-104520-TL7C GM 6L45, 6L50, 6L80 and 6L90 units may exhibit...

MSRP:

Now: $71.95
Add to Cart
Quick view

Sonnax

6L80 6L90 HD Pump Slide Spring

Sonnax high-performance pump slide spring 104534-HD for GM 6L80 and 6L90 transmissions helps maintain consistent pump volume during line rise and at high-RPM operation. In high-performance...

MSRP:

Now: $9.95
Add to Cart
Quick view

Sonnax

6L80 6L90 High Capacity 4-5-6 Clutch Apply Piston Kit

Use with OE 36-tooth clutches and OE steels. GM 6L80 and 6L90 transmissions often suffer failure of the 4-5-6 clutch assembly due to OE design shortcomings. Not enough clutches and insufficient...

MSRP:

Now: $159.95
Add to Cart
Quick view

Sonnax

6L80 6L90 Lube Dam For Output Planetary (2006-UP)

The output planetary assembly in GM 6L80 and 6L90 transmissions has a lube dam, or cover, that directs lube oil flow to the planetary lube feed passages. Over time, the lube dam allows gunk and...

MSRP:

Now: $29.95
Currently Out of Stock
Quick view

Sonnax

6L80 6L90 Torrington Bearing Kit

This seven piece bearing kit for GM's 6L80 and 6L90 contains the Input 4-5-6-Hub, 1-2-3-4-Hub, 2-6/3-5-R Hub, Output Front/Rear bearings.

MSRP:

Now: $109.95
Add to Cart
Quick view

Sonnax

6L80 Extreme Duty 4-5-6 Clutch Hub & Intermediate Shaft | 9-1/8'' Tall

Extreme Duty 4-5-6 Clutch Hub & Intermediate ShaftPart No. 104680-45 Use with Powerglide-style, 45-tooth frictions, Sonnax steels & high capacity piston kit 104960-20K. OE Part No...

MSRP:

Now: $1,050.00
Add to Cart
Quick view

Sonnax

6L80|6L90 1-2-3-4 Clutch Piston HD (2006-UP) Sonnax

Sonnax 6L80/6L90 Transmission Heavy Duty 1-2-3-4 Clutch Piston GM 6L80 and 6L90 1-2-3-4 pistons commonly crack due to cantilevered stress on the cast material. The OE part has been through...

MSRP:

Now: $92.95
Add to Cart

Previous
7
8
9
10
11
12
13
14
15
16
17
Next

Previous
7
8
9
10
11
12
13
14
15
16
17
Next

Compare Selected