ATP Parts 102106 Engine Harmonic Balancer

OE Replacement Harmonic Balancer for GM V8 Applications

ATP Parts 102106 is an OE replacement harmonic balancer built to restore crankshaft vibration control and belt alignment on a wide range of GM trucks, vans, and SUVs. It is a standard replacement balancer for serpentine-drive applications, including Chevrolet Express 2500, GMC Savana 3500, and other compatible GM models.

Key Features

• OE Replacement Balancer from ATP Parts OE Replacement Balancer line
• Standard replacement design for serpentine belt systems
• 4 pulley grooves for belt drive routing
• 4 mounting holes for crankshaft attachment
• Inside diameter: 2.0625 in. / 52 mm
• Outside diameter: 7.8125 in. / 198 mm
• Depth: 2.5625 in. / 65 mm
• Bolt and washer not included

Product Details

The harmonic balancer, also called a crankshaft damper, absorbs engine vibration through an internal rubber or fluid damping layer. When that damping material wears out, the outer pulley can shift and create belt misalignment, noise, and added stress on the crankshaft. ATP Parts 102106 is engineered as a direct-fit OE-style replacement to restore normal engine operation on compatible Chevrolet and GMC applications. This part cross-references Standard Ignition PC1051 for the same application.

Common Problems This Part Can Address

• Crankshaft vibration at idle or under load
• Serpentine belt misalignment
• Belt squeal caused by pulley runout
• Visible separation or wobble in the balancer
• Wear-related harmonic damper failure on GM V8 engines

Installation Notes and Fitment

Compatible With 1988-2000 Chevrolet C2500, C3500, K2500, and K3500; 1988-2000 GMC C2500, C3500, K2500, and K3500; 1995-1999 Chevrolet C1500 Suburban, K1500 Suburban, Tahoe; 1994-1999 Chevrolet C2500 Suburban, K2500 Suburban; 1995-1999 GMC C1500 Suburban, K1500 Suburban; 1994-1999 GMC C2500 Suburban, K2500 Suburban; 1992-1999 Chevrolet P30; 1988-1999 GMC P3500; 1988-1998 Chevrolet C1500, K1500; 1988-1998 GMC K1500; 1988-1997 GMC C1500; 1994-1997 GMC Yukon; 1988-1996 Chevrolet G30; 1988-1996 GMC G3500; 1988-1995 Chevrolet G20; 1988-1995 GMC G2500; 1994 Chevrolet Blazer; 1988-1991 Chevrolet Blazer; 1990-1991 Chevrolet P30; 1989-1991 Chevrolet R1500 Suburban, R2500 Suburban, R3500, V1500 Suburban, V2500 Suburban, V3500; 1988-1991 GMC Jimmy, R1500 Suburban, R2500 Suburban, R3500, V1500 Suburban, V2500 Suburban, V3500; 1988-1989 Chevrolet P20, P30; 1989 Chevrolet R2500; 1988-1989 GMC P2500, R2500; 1988 Chevrolet R10 Suburban, R20, R20 Suburban, R30, V10 Suburban, V20 Suburban, V30; 1996-2002 Chevrolet Express 2500 and Express 3500; 1996-2002 GMC Savana 2500 and Savana 3500.

Verify pulley groove count, inside diameter, and overall depth before installation. Because this balancer is for serpentine-drive applications, correct belt alignment is critical for proper operation.

Quality Assurance

ATP Parts manufactures this OE replacement balancer to match original fit and function for the listed GM applications, helping restore normal engine operation after harmonic balancer wear or failure.