Oil Pump Sealing O-ring - GM 6T30/40/45/50

Large O-ring sealing the oil pump housing on 6-speed automatic transmissions General Motors 6T series (6T30, 6T40, 6T45, 6T50). This ring ensures a tight connection between the oil pump and the main body of the gearbox. Its hardening or damage leads to internal oil pressure leaks, which can cause delayed gear engagement, slippage and other transmission problems.

Technical specifications:

• Manufacturer: High-quality replacement
• Condition: New
• Transmission type: 6-speed automatic (GM 6T30, 6T40, 6T45, 6T50)
• Application: Oil pump circuit seal

Vehicle compatibility:

The O-ring fits all vehicles equipped with 6T series transmissions, including Chevrolet, Opel, Buick, GMC.

Key benefits:

• Restores a key seal in the hydraulic system
• Prevents pressure loss, which is the cause of many failures
• Essential to be replaced each time the oil pump is removed during a gearbox overhaul
• Made of material resistant to ageing and modern ATF oils

Installation instructions:

Replacing the o-ring requires disassembly of the gearbox from the vehicle and removal of the oil pump. The old o-ring should be removed and the groove in the transmission body thoroughly cleaned. The new o-ring should be gently lubricated with clean ATF oil or assembly grease and carefully seated in the groove before reassembling the pump.

Summary:

The oil pump O-ring for 6T series transmissions is a small and inexpensive part, but its role is absolutely fundamental to the operation of the entire transmission. Its preventive replacement during every overhaul is a must to guarantee the success of the repair and prevent serious pressure problems.