Sonnax Transmission Company Automatic Transmission Boost Valves

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

Part Number: SOX-4L80E-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Line Pressure Booster Kit, Hydraulic, Valve, Sleeve, Pressure Regulator Spring, O-rings, GM, TH400, Kit

Part Number: SOX-400-LB1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Line Pressure, Electric, Kit

Part Number: SOX-RFE-LB1

4.43 out of 5 stars ( 14 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L60E, 4L65E, 4L70E, Early Pump, 1.907 in. Long, Kit

Part Number: SOX-4L60E-LB1

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 6L50, 6L80, 6L90, Kit

Part Number: SOX-6L80-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4L60E, 4L65E, 4L70E, Late Pump, 1.810 in. Long, Kit

Part Number: SOX-4L60E-LB2

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 200-4R, 4L60, Kit

Part Number: SOX-700R4-LB1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

TCC APPLY VALVE KIT

Part Number: SOX-77805E-K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

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: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 200-4R, 4L60, O-Ring Style, Kit

Part Number: SOX-77917-500

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Line Pressure Booster Kit, Hydraulic, Valve, Sleeve, O-rings, GM, TH400/425, Kit

Part Number: SOX-34910-01K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, O-Ring Style, TV Boost Valve, GM, 4L80E, 4L85E, Kit

Part Number: SOX-34200-01K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

REGULATOR VALVE KIT

Part Number: SOX-104740-07K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

BOOST VALVE KIT

Part Number: SOX-34200-10K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Boost Valve, Low/Reverse, GM, Powerglide, Kit

Part Number: SOX-28999-01K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, Ford, 4R70W, 4R75W, Kit

Part Number: SOX-4R70W-LB1

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, TH350, TH350C, Kit

Part Number: SOX-350-LB1

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

Pressure Booster, Hydraulic Line, TV Boost Valve, Ford, 4R100, E4OD, Kit

Part Number: SOX-4R100-LB1

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

OVERSIZE CLUTCH BOOST VALVE

Part Number: SOX-104740-01

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

BOOST VALVE KIT

Part Number: SOX-77898E-14K

Not Yet Reviewed

Estimated Ship Date: Monday 12/1/2025

• $10 Summit Bucks

VALVE KIT BOOST CLICKER TYPE

Part Number: SOX-36941-01K

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

LINE PRESSURE BOOSTER KIT

Part Number: SOX-5R55WS-LB1

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

Pressure Booster, Hydraulic Line, TV Boost Valve, GM, 4T65E, Kit

Part Number: SOX-4T65E-LB1

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order

VALVE PR REG STEEL

Part Number: SOX-28999-03

Not Yet Reviewed

Estimated Ship Date: Dec 26, 2025 if ordered today

• Drop Ship
• $10 Summit Bucks
• Special Order