ALLISON1000 Pump Body O-Ring 2001-2024

Overview

This is a transmission pump / pump component for the Chevrolet, GMC, Duramax ALLISON1000 automatic transmission (2001-2024). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade ALLISON1000 repair or rebuild. Every ALLISON1000 order ships fast and is backed by our support team.

What's Included

• pump components to restore proper line pressure

Fitment

Fits Chevrolet, GMC, Duramax vehicles equipped with the ALLISON1000 automatic transmission, 2001-2024. Please confirm your transmission model and year before ordering to ensure correct fitment.

Common Symptoms & When to Use

Consider this ALLISON1000 part when you experience:

• slipping and low line pressure
• no movement or a pump whine
• delayed engagement from a worn pump

Specifications

• Transmission: ALLISON1000
• Year Range: 2001-2024

Quality & Service

In-stock parts ship fast; special-order items ship within 3 business days. Free shipping on orders over $70. Backed by Core Transmission Parts — your source for ALLISON1000 transmission parts.