6L80 6L90 Transmission Rebuild 1-2-3-4 3-5-Reverse Clutch Seals Pack O-Rings

Transmission Rebuild Clutch Seals Pack O-Rings

This rebuild kit contains premium clutch seals and O-rings designed to restore hydraulic pressure and prevent leaks in compatible automatic transmissions.

Overview

This Transmission Rebuild Clutch Seals Pack O-Rings provides essential replacement seals for critical clutch assemblies during a transmission overhaul. The high-quality elastomer O-rings ensure tight sealing within the 1-2-3-4 and 3-5-reverse clutch pistons to maintain proper operating pressure. Professional mechanics and rebuilders utilize this Transmission Rebuild Clutch Seals Pack O-Rings to resolve internal fluid bypass and restore shifting performance.

Built For Performance

• Precision-molded elastomer construction provides resistance to automatic transmission fluids.
• Designed to withstand high operating temperatures without losing elasticity.
• Accurate dimensions ensure a tight seal within the internal clutch pistons.
• Includes specific seals for 1-2-3-4 and 3-5-reverse clutch assemblies.

Fits These Machines

• for GM 6L80 transmission
• for GM 6L90 transmission

On-The-Job Use

• Rebuilding worn automatic transmissions during a major overhaul.
• Replacing brittle or torn piston seals to eliminate internal pressure loss.
• Servicing slipping clutch packs to restore proper gear engagement.

Specs At A Glance

Good To Know

Q: Why is replacing these seals during a rebuild critical? A: Brittle or damaged seals allow hydraulic fluid to bypass the pistons, which leads to slipping clutches and transmission failure.

Q: Is lubrication required during installation? A: Applying a light coat of assembly lube or clean transmission fluid helps prevent tearing during assembly.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.