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Powerbond Underdrive Race Performance Balancer

Dayco Powerbond Underdrive

Under-driving the accessory pulleys to reduce parasitic power losses from the alternator, air conditioning, water pump and power steering at high engine RPMs. A smaller, lighter harmonic balancer is like a lightweight flywheel and can sharpen throttle response and allow the engine to rev out faster.

Powerbond Balancer Fitment Tips

Download the Dayco Performance Range Catalogue


Click on a column heading to sort the items in the list

Part numberCrank boreNose diameterOutside diameterOverall widthTool
PBU1021SS1231.71mm44.45mm175mm71mmHBTK001
PBU1085SS2529.97mm 129.25mm66mmHBTK001
PBU1104SS2529.97mm46.1mm130.5mm57.99mmHBTK001
PBU1116SS1031.71mm47.65mm161mm46.89mmHBTK001
PBU1116SS2531.71mm47.65mm179mm46.89mmHBTK001
PBU1117SS1037.6mm54mm183.5mm61.49mmHBTK001
PBU1117SS2537.6mm54mm176mm61.49mmHBTK001
PBU1155SS25     
PBU1157SS2031.72mm44.4mm174mm51mmHBTK001
PBU1158SS2529.97mm 174mm76.18mmHBTK001
PBU1164SS2524.01mm 100mm37.49mmHBTK001
PBU1170SS2028.01mm 126.5mm55.25mmHBTK001
PBU1171SS2529.97mm 174mm71.37mmHBTK001
PBU1177SS2037.96mm50mm172mm35.99mmHBTK001
PBU1190SS2537.6mm54mm158mm63.98mmHBTK001
PBU1375SS2537.45mm50.2mm175mm37.49mmHBTK001
PBU1462SS2031.71mm44.5mm174mm84.3mm 
PBU1480SS1037.6mm54mm172mm93mmHBTK001
PBU1480SS2537.6mm54mm158mm63.5mmHBTK001
PBU1481SS1041.3mm 171.5mm33.88mmHBTK001
PBU1504SS2030mm 123mm56.44mmHBTK001
PBU1523SS2531.71mm47.65mm155mm49.28mmHBTK001
PBU1638SS2531.72mm47.68mm155mm109.8mmHBTK001
PBU1639SS2537.45mm50.2mm147mm94mmHBTK001
PBU81117SS2537.6mm54mm176mm79.1mmHBTK001
PBU81461SS1034.87mm49.12mm176.2mm57.58mmHBTK001
PBU81480SS2537.6mm54mm158mm63.68mmHBTK001