LMM Duramax Harmonic Balancer 2007.5-2010
Overview
This is a crankshaft harmonic balancer / damper for the Chevrolet, GMC LMM Duramax diesel (2007.5-2010). Built to OEM specification and engineered as a direct-fit replacement for a professional-grade LMM Duramax repair or service. Every order ships fast and is backed by our support team.
What It Does & How It Helps
The harmonic balancer, or crankshaft damper, bolts to the front of the crankshaft and absorbs the torsional vibration every firing pulse puts into it. A diesel makes strong pulses, and over time the rubber or fluid element in the damper fails, the outer ring can shift or separate, and the crankshaft loses that protection. A worn balancer is replaced to protect the crank, the front seal and the belt drive.
What's Included
- a crankshaft harmonic balancer / damper as specified
- bolt or hardware where included
Fitment
Fits Chevrolet, GMC trucks equipped with the LMM Duramax diesel engine, 2007.5-2010. Please confirm your engine and year before ordering to ensure correct fitment.
Common Symptoms & When to Use
Consider this LMM Duramax part when you experience:
- a wobble at the crank pulley at idle
- cracked, bulging or separated damper rubber
- new vibration or a front seal leak
- belt tracking problems at the crank pulley
Specifications
- Engine: LMM Duramax
- Year Range: 2007.5-2010
Quality & Service
Fast shipping on in-stock orders. Free shipping on orders over $70 to the lower 48 states. Backed by Core Diesel Parts — your source for LMM Duramax diesel parts.