National Engine Timing Cover Harmonic Balancer Sleeve
Fits Buick, Cadillac, Isuzu & more — 47 vehicle applications
Harmonic Bal. Sleeve
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Review shipping eligibility for this region
- Canadian Owned

National 88176 Vehicle Fitment
Fits 47 vehiclesThis National Engine Timing Cover Harmonic Balancer Sleeve fits Buick, Cadillac, Isuzu, AM General and 4 more makes vehicles.
Fits 1995-1996 AM General Hummer; 1973-1975 Buick Apollo; 1977-2005 Buick Century; 1991-1996 Buick Commercial Chassis; 1985 Buick Electra; 1978-1982 Buick LeSabre; 2009-2011 Buick Lucerne; 1977-1996 Buick Regal. Plus 39 more models listed below.
2009-2011 Buick Lucerne
2005-2007 Buick Terraza
2002-2007 Buick Rendezvous
1991-1996 Buick Roadmaster
1991-1996 Buick Commercial Chassis
1986-1987 Buick Somerset
1985 Buick Electra
1985 Buick Somerset Regal
1982-1989 Buick Skyhawk
1978-1982 Buick LeSabre
1977-2005 Buick Century
1977-1996 Buick Regal
1973-1975 Buick Apollo
1968-1998 Buick Skylark
1968-1969 Buick Special
National 88176 Specifications
- Width On Shaft
- 0.563
- Shaft Maximum Diameter
- 1.767
- Shaft Maximum Diameter
- 44.880
- Width
- 17.480
- Installation Depth
- 20.650
- Unit of Dimension
- Inch
National 88176 Product Description
National 88176 Engine Harmonic Balancer Repair Sleeve for Chevrolet Impala
Key Features
- Designed to prevent timing cover seal leaks
- Made of stainless steel
- Takes up gaps caused by worn-out harmonic balancer shafts
National® has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today’s vehicles.
About National
Shop National Engine Timing Cover Harmonic Balancer Sleeve at Autrex with vehicle fitment details, current pricing, and checkout options for the National 88176. Eligible orders over $99 may qualify for free shipping, with some exceptions.
Seller reviews
What customers say about buying from Autrex — service, shipping and support. These are reviews of the store, not of this specific part.
- July 2026
Couldn't locate the parts for 2013 Civic Si Sedan. Front struts are an Anomaly found them at Capital autoparts. Great service and great parts. Shipping by CanPar sucked however
- July 2026
Great customer service. I placed an order for wheels and tires and it was an easy transaction. Make sure you read the expected lead times for delivery however. I misread that part, but the order did arrive in the correct timeframe stated. The Hostile rims and Hercules tires look great. Thank you
- July 2026
Awesome
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Frequently Asked Questions — National 88176
What vehicles does the National 88176 fit?
The National 88176 fits 47 vehicle applications including 2009-2011 Buick Lucerne, 2005-2007 Buick Terraza, 2002-2007 Buick Rendezvous, 1977-2005 Buick Century, 1999-2000 Cadillac Escalade and 42 more. Check the full fitment list above to confirm your vehicle.
How do I confirm the National 88176 fits my vehicle?
Select your year, make, model and engine in the vehicle selector on this page to see a fit or does-not-fit result for the National 88176. If your vehicle has options that change the part (for example brake package or axle), the result lists the questions to check. A parts specialist can also confirm fitment at 1-866-461-2787.
What are the shipping options for the National 88176?
Shipping options for the National 88176 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
How much does the National 88176 cost?
The National 88176 is currently listed at $23.00 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.
Is the National Engine Timing Cover Harmonic Balancer Sleeve a direct fit replacement?
Fit depends on the vehicle and its configuration. Select your vehicle and review the fitment result for the National Engine Timing Cover Harmonic Balancer Sleeve before ordering.
