Tame crankshaft torsional vibration and keep the front of the engine running smooth with the Dayco Engine Harmonic Balancer PB1490DP. It installs as a direct-fit replacement across a broad run of 1993-2002 Chevrolet and GMC full-size trucks, vans, and SUVs — including the 1994 Chevrolet Blazer, 1994-1998 Chevrolet C1500, 1994-2000 Chevrolet C2500, 1993-2002 Chevrolet C3500HD, 1995-1999 Chevrolet Tahoe, 1996-2002 GMC Savana 2500, and 1994-1997 GMC Yukon — with the full list of applications on the Buyer's Guide tab.
Mounted at the front of the crankshaft, the harmonic balancer absorbs the torsional pulses created as the cylinders fire, helping smooth engine operation and protect the crankshaft from vibration-related stress.
Interchange: 102051 · 594-170D · 594170D
Manufacturer part number PB1490DP
This part cross-references / interchanges with the following part numbers:
What does the Dayco PB1490DP do?
It's a harmonic balancer that mounts on the front of the crankshaft and dampens the torsional vibration created as the engine fires, helping smooth operation and protect the crankshaft.
Which vehicles does this balancer fit?
It's a direct-fit replacement for many 1993-2002 Chevrolet and GMC trucks, vans, and SUVs, such as the C1500, C2500, C3500HD, Tahoe, Savana, and Yukon. See the Buyer's Guide tab for the full list.
What interchange numbers does it cross to?
It replaces interchange numbers 102051 and 594-170D (also listed compact as 594170D). Its own manufacturer part number is PB1490DP.
How do I know my harmonic balancer is failing?
Common signs include engine vibration, a visibly wobbling or off-center pulley, belt misalignment, or a cracked or separated outer ring. Diagnose the cause before replacing.
Does it include the crankshaft bolt or install tools?
This listing covers the harmonic balancer PB1490DP. Consult the vehicle service information for the correct crankshaft bolt, torque, and whether a puller or installer tool is required.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
