ATP Parts 102278 Engine Harmonic Balancer

OE Replacement Harmonic Balancer for Ram HD

Restore crankshaft damping and belt alignment with this ATP Parts OE Replacement Balancer. Built for the 1999-2002 Dodge Ram 2500 and Ram 3500 with serpentine drive systems, ATP Parts 102278 is a direct-fit engine harmonic balancer for service replacement on the 8-groove application.

The OE Replacement Balancer line from ATP Parts focuses on direct-fit service parts that match original form and function. ATP Parts 102278 follows that approach for Dodge Ram 2500 and Dodge Ram 3500 trucks, helping return the engine’s vibration control system to normal operation.

• OE Replacement Balancer from ATP Parts
• Fits 1999-2002 Dodge Ram 2500, N/A
• Fits 1999-2002 Dodge Ram 3500, N/A
• Serpentine drive belt type with 8-groove application
• Standard replacement grade for direct service use
• Inside diameter: 1.5 in / 37 mm
• Outside diameter: 6.625 in / 168 mm
• Depth: 3.75 in / 94.7 mm

This engine harmonic balancer bolts to the crankshaft hub and uses an internal damping layer to absorb torsional vibration. Over time, deterioration in the damping material can allow the outer pulley section to shift, which can lead to belt misalignment and added stress on the crankshaft. ATP Parts 102278 is built as an OE-style replacement for the original balancer on Dodge Ram 2500 and Dodge Ram 3500 trucks, restoring proper belt tracking and vibration control. This part cross-references 5011800AA and DA-3606 for the same application.

Common Replacement Symptoms

• Visible wobble or movement at the crank pulley
• Belt misalignment on the serpentine drive system
• Cracked or deteriorated balancer damping material
• Engine vibration traced to the crankshaft pulley area
• Noise from the front of the engine during operation

Installation Notes

Verify groove count, outside diameter, and depth before installation. Confirm the serpentine belt routing and crankshaft fitment on the vehicle before replacing the balancer. Bolt and washer are not included, so reuse or source the correct hardware separately if required by the application. Proper installation and torque procedures are important to maintain crankshaft alignment and balancer performance.

Quality Assurance

ATP Parts 102278 is a standard replacement harmonic balancer built to match OE fit and function for the listed Dodge Ram applications. It is intended to restore normal engine operation by controlling crankshaft vibration and maintaining correct belt alignment.