ATP 102131 Engine Harmonic Balancer

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Pioneer DA20
• Pioneer DA-20
• Dorman - OE Solutions 594138
• Qualitee International 5012038
• Chromite PC7009
• Toyota 1340874010
• LODI P-T2.0
• Dayco PB1232-N
• NAPA 6005291
• Venture Products V1087
• Hollander 30950027
• Platinum 2625002
• Pioneer Automotive Industries DA20
• Pioneer Automotive Industries DA-20
• Dayco PB1232N

• The purpose of an harmonic balancer is to absorb crankshaft vibrations. Harmonic balancers are typically constructed in three pieces. The first piece is often called a hub. It bolts to directly to the crankshaft. The hub is surrounded by rubber or fluid which dampens crankshaft vibrations. The outside layer is metal which has grooves on it for the belt. Over time the rubber and/or fluid layer deteriorate causing the outer pulley to shift forward. This causes belt miss alignment and can ultimately result in crankshaft failure. When the harmonic balancer is broken, it must be replaced. ATP Harmonic Balancers fit and function just like the original part restoring the engine to normal operation.