DNJ Harmonic Balancer 1990-1992 Buick, Chevrolet, Oldsmobile, Pontiac 3.8L

DNJ Harmonic Balancer for the 1990–1992 Buick, Chevrolet, Oldsmobile and Pontiac with the 3.8L engine. The harmonic balancer damps crankshaft vibration and drives the accessory belt. Part number: HBA1005.

Key features

• Made for VIN L 12V OHV engines
• Listed for V6 3.8L 231 OHV 12V engines

Specifications

• Brand: DNJ
• Part type: Harmonic balancer
• Part number: HBA1005
• Engine: 3.8L
• Engine code: VIN L 12V OHV

Fitment for the 1990–1992 Buick, Chevrolet, Oldsmobile and Pontiac

• Years: 1988–1995
• Vehicles: GM
• Cylinders: V6
• Displacement: 3.8L
• Engine: 231 OHV 12V
• Engine codes: BUICK

Check your year, model, engine and trim against this list before you order.

What it does

A failing balancer can throw the belt or upset timing marks, so it is worth replacing when you see cracks or wobble. Using the correct part for your exact engine keeps oil pressure, sealing and timing where the engine was designed to run, and doing related parts at the same time saves taking it apart twice.

Installation & tips

• Use a proper installer tool rather than hammering the balancer onto the crank.
• Front crank seal: Replace it while the balancer is off.
• Drive belt: A fresh belt goes on after.
• Put the new part next to the old one and compare the shape, mounting points and connections before you install it.
• Work on a cool engine with the vehicle secured, and use a service manual for your vehicle for torque specs and procedures.

FAQ

What is the part number of this harmonic balancer?
HBA1005 (DNJ). Compare it with the number on your old part or in your parts catalog.

Which engine is it for?
It is listed for the 3.8L VIN L 12V OHV engine in the 1990–1992 Buick, Chevrolet, Oldsmobile and Pontiac. Check the engine code on your vehicle if it was offered with more than one engine.

Can I install it myself?
Many owners do this job at home with basic tools and a service manual for their vehicle. If you are not sure, have it fitted by a qualified mechanic.

Before you order

• Confirm your year, make, model, engine and trim match the fitment listed above (1990–1992 Buick, Chevrolet, Oldsmobile and Pontiac 3.8L).
• Compare part number HBA1005 with your original part.

Good to know

• Warranty: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.