6L90 Accumulator Piston Kit - HD Transmission 2006-2018 Transmission 6L90 HD Transmission Sonnax

Overview

This is a servo piston assembly and apply kit for the GM, Chevrolet, GMC, Cadillac 6L90 automatic transmission (2006-2018). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade 6L90 repair or rebuild. Every 6L90 order ships fast and is backed by our support team.

What's Included

• a larger-apply servo piston assembly
• cover, snap ring and seals as applicable
• an apply pin where supplied with the kit

Fitment

Fits GM, Chevrolet, GMC, Cadillac vehicles equipped with the 6L90 automatic transmission, 2006-2018. Please confirm your transmission model and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this 6L90 part when you experience:

• a slipping or burnt 2-4 band
• soft or flared 1-2 and 3-4 shifts
• weak band apply under load or towing
• a servo bore or seal leak found during rebuild

Specifications

• Transmission: 6L90
• Year Range: 2006-2018

Quality & Service

In-stock parts ship fast; special-order items ship within 3 business days. Free shipping on orders over $70 to the lower 48 states. Backed by Core Transmission Parts — your source for 6L90 transmission parts.