LS Gen III 4.8/5.3/5.7/6.0 Harmonic Balancer 1997-2007 Speedway Motors 91021811

Speedway Motors harmonic balancer for the LS Gen III 4.8/5.3/5.7/6.0 (1997-2007). Listed for one application: LS Gen III 4.8/5.3/5.7/6.0 engines, 1997-2007, in Chevrolet, GMC, Pontiac, Cadillac applications. Confirm your engine code and year against this listing before ordering.

What it does

The balancer damps crankshaft torsional vibration and drives the accessories. A separated or wobbling balancer throws the belt, wears the front seal and can snap a crank snout. A new balancer (with the correct install bolt) restores smooth, true belt drive.

Fits

• Chevrolet vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• GMC vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• Pontiac vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007
• Cadillac vehicles with the LS Gen III 4.8/5.3/5.7/6.0 engine, 1997-2007

Fixes

• a wobbling crank pulley or thrown belt
• the rubber ring walking out of the hub
• front main seal leaks from a scored hub
• a rebuild or supercharger install

What's included

• the balancer assembly
• install bolt only where the manufacturer lists it

Specifications

• Brand: Speedway Motors
• Part number: 91021811
• Shipping weight: 10.0 lb
• Package size: 8.9 x 8.7 x 3.5 in
• Condition: new
• Product type: Harmonic Balancer

Cross-reference

Replaces or interchanges with Speedway Motors 91021811 for the LS Gen III 4.8/5.3/5.7/6.0. Check the part number stamped on your original before ordering.

Free shipping on orders of $70 or more; everything else ships with calculated shipping at the part's real weight. Questions on fitment? Ask a tech before you buy.