Sonnax Transmission Parts

Automatic Transmission Boost Valves, Oversized Pressure Regulator Valve, Sleeve, Spring, Drill Bit, Checkball, GM, 6L45, 6L50, 6L80, 6L90, Kit

Part Number: SOX-104520-07K

Not Yet Reviewed

Estimated Ship Date: Today

SHIFT SHAFT SAVER KIT

Part Number: SOX-262991-04K

Not Yet Reviewed

Estimated Ship Date: Today

Automatic Transmission Rebuild Components, Accumulator Check Valve, GM, 4L60, 4L60E, 4L65E, 4L70E, Each

Part Number: SOX-74480D

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Automatic Transmission Carrier Thrust Washers, 2.749 in. O.D., 0.106 in. Thickness, 2.082 in. I.D., Ford, GM, Each

Part Number: SOX-56241

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Reverse Clutch Pack Retaining Ring, Automatic Transmission Rebuild Component, Powerglide, Each

Part Number: SOX-28124

Not Yet Reviewed

Estimated Ship Date: Today

Torx Plus Bit, 4L60-E, 4L65-E, 4L70-E, Bellhousing Bolt Socket, Steel, Each

Part Number: SOX-77000-HBK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Reamer Kit, Reamer, Drill Jig, Guide Pin, Kit

Part Number: SOX-F-92835-TL31

Not Yet Reviewed

Estimated Ship Date: Nov 21, 2025 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Pressure Regulator Valve, PTFE O-Ring, TH400, TH425, Each

Part Number: SOX-34910-03K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Automatic Transmission Accumulator Pistons, Replacement Servos, Billet Aluminum, Replacement Piston for Sonnax Servo Piston Kits, Chevy, Powerglide

Part Number: SOX-28821-02

Not Yet Reviewed

Estimated Ship Date: Today

BEARING KIT

Part Number: SOX-SBK-G20

Not Yet Reviewed

Estimated Ship Date: Today

SLIP YOKE 27 SPLINE 1310 U-JOI

Part Number: SOX-T236081HP8XL

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Small Parts Kit, TH400, Seals, Retainers, Bushing, Plates, Spring, Kit

Part Number: SOX-28755-SPK

Not Yet Reviewed

Estimated Ship Date: Today

TH400 FORWARD DRUM

Part Number: SOX-34554-01

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission Carrier Thrust Washers, Forward Clutch Hub, Rear, 0.030 in. Oversized, Steel, 0.094 in. Thick, 4L80-E, 4L85-E, THM400, Set of 5

Part Number: SOX-34301-094

Not Yet Reviewed

Estimated Ship Date: Today

Automatic Transmission Intermediate Shaft, 300M, Extreme Duty Hub, 4-5-6 CL, GM 6L80, 45T, Each

Part Number: SOX-104680-45

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Automatic Transmission Rebuild Kits, Sure Cure Kit, with O-Ring Plug Ends, Boost Valve, Bushings, Springs, Cadillac, Chevy, GMC, 4L80-E, 4L85-E, Kit

Part Number: SOX-SC4L80E

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

SHAFT

Part Number: SOX-74678S-HD

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

• Free Shipping

Clutch Hub Shims, 4L80E, 4L85E, TH400, TH425, Set of 10

Part Number: SOX-34006-05

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Pump Slide Spring, 6L80, 6L90, Each

Part Number: SOX-104534-HD

Not Yet Reviewed

Estimated Ship Date: Today

Automatic Transmission Rebuild Components, Clutch Separator, 4L80-E, THM400, Set of 60

Part Number: SOX-ORCS-103-380

Not Yet Reviewed

Estimated Ship Date: Today

Servo Apply Lever, Automatic Transmission Rebuild Component, C-6, Each

Part Number: SOX-36916E

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

TCC Regulator and Isolator Valve Kits, 4L80E, 4L85E, Kit

Part Number: SOX-34994-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

TOOL KIT

Part Number: SOX-77754TL

Not Yet Reviewed

Estimated Ship Date: Today

• Free Shipping

Spring, 1-2 Accumulator, Purple, 5/Set

Part Number: SOX-74926

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Servo Piston, 2nd Gear Type, Billet Aluminum, Servo Cover, Pipe Plug, Two Seal Rings, Kit

Part Number: SOX-22301B-01K

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

• Free Shipping