Allison 1000 A Shift Solenoid Black Connector OEM D121418B

Overview

This is a transmission shift solenoid for the Chevrolet, GMC, Duramax ALLISON1000 automatic transmission. 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

• a direct-fit replacement solenoid built to OE performance

Fitment

Fits Chevrolet, GMC, Duramax vehicles equipped with the ALLISON1000 automatic transmission. 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:

• harsh, delayed or missing shifts
• stuck in gear or limp/failsafe mode
• check-engine light with shift-solenoid performance codes
• erratic line pressure or converter lockup

Specifications

• OEM Part Number: D121418B
• Transmission: ALLISON1000

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 ALLISON1000 transmission parts.