Stellar Automotive Group TH400 Front Pump/Center Support Sealing Ring fits GM

Stellar Automotive Group TH400 Front Pump/Center Support Sealing Ring – Compatible for GM 1964-Up

Prevent low line pressure, delayed engagement, and clutch slip with this high-quality sealing ring from Stellar Automotive Group.

This direct-replacement sealing ring fits the front pump and center support in all TH400 transmissions. The factory rings often harden, shrink, or wear over time from heat and mileage, causing internal leaks that reduce pressure, cause slipping clutches, harsh shifts, and eventual transmission damage. This upgraded ring provides a reliable, leak-proof seal, restores full hydraulic pressure, and protects your pump, clutches, and bands for reliable performance in classic muscle cars or heavy-duty trucks.

Perfect fit for popular models including:

• Chevrolet Camaro, Corvette, Chevelle, Silverado
• GMC equivalents
• Buick Regal, Oldsmobile Cutlass, Pontiac GTO

Common symptoms this sealing ring resolves:

• Low line pressure or delayed engagement
• Slipping clutches or flare on shifts
• Harsh or erratic shifting
• Fluid leaks or burnt clutches on teardown

Easy installation – replace during pump or center support service. Professional installation recommended for best results.

Note: All parts are distributed, not designed or manufactured, by Stellar Automotive Group.

Add this essential TH400 sealing ring to your cart today and restore strong, leak-free performance!