Overview
The XDP Premium Balancer Series - Stock Replacement Harmonic Balancer XD709 is an ideal replacement for the worn harmonic balancer on your GM 6.6L Duramax LB7/LLY. A harmonic balancer (also known as a crankshaft vibration damper) serves more than just the function of spinning the pulleys on an engine. It is designed to help eliminate engine harmonics, reducing vibrations that might otherwise transfer into the cab of your truck. Composed of three primary components - the hub, the rubber damper, and the outer ring, the balancer is carefully calibrated through factors such as sizing and balance to help dampen engine power pulses and provide smooth engine operation.
The XDP Premium Balancer Series are a direct-fit replacement and designed to deliver excellent strength and durability. In contrast to many other balancers that utilize inexpensive gray iron castings, XDP Premium Balancers are constructed using high-strength Spheroidal Graphite Cast Iron. Additionally, while most OEM balancers rely on press-in dampening rubber that may fail under high-torque serpentine belt applications, XDP harmonic balancers use both inserted and pressure-bonded rubber that produces excellent rubber strength.
Features
- Direct Fit Replacement
- Spheroidal Graphite Cast Iron Construction
- Constructed With Inserted And Pressure-Bonded Rubber
- Superior Bonding Strength Between The Inner And Outer Balancer Rings
Specifications
- Timing Marks: Yes
- Overall OD (in): 7.796
- Overall Width (in): 2.455
- Crank Bore (in): 1.930
- Ring Width (in): 2.455
- Counterweight Balance: Hub weighted
- No. of Integrated Pulleys: 1
- Pulley Type 1: Serpentine
- Pulley Grooves 1: 6
- Pulley OD 1 (in): 7.560
- Crank Trigger/Exciter Plate: No
Cross Reference : PB1648N, 594-419, 594419, 97225896, 97328573, 97780412