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Sonnax Transmission Parts

Sonnax Transmission Parts

Since 1978, Sonnax Transmission Company has specialized in the cutting-edge design of top-quality performance and OEM replacement transmission parts. Summit Racing carries...

Since 1978, Sonnax Transmission Company has specialized in the cutting-edge design of top-quality performance and OEM replacement transmission parts. Summit Racing carries a large selection of Sonnax transmission and drivetrain parts, including slip yokes, throttle cable brackets, input drum reinforcement kits, hydraulic line pressure booster kits, and more. Order your Sonnax transmission parts from Summit Racing today!

Since 1978, Sonnax Transmission Company has specialized in the cutting-edge design of top-quality performance and OEM replacement transmission parts. Summit Racing carries a large selection of Sonnax transmission and drivetrain parts, including slip yokes, throttle cable brackets, input drum reinforcement kits, hydraulic line pressure booster kits, and more. Order your Sonnax transmission parts from Summit Racing today!

Individual Parts

Results 1 - 3 of 3

Automatic Transmission Valve Body, GM 4L80-E, 4L85-E, Performance, Each

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L80E, Kit

Part Number: SOX-4L80E-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

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: Monday 1/12/2026

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Estimated Ship Date: Monday 1/12/2026

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