Westar®Verified to fit 67 vehicles
| Vehicle | Trim | Drive | Engine | Notes |
|---|---|---|---|---|
| 2005 Pontiac AztekFront Upper | — | AWD | V6 3.4L | Note: Available in the Westar Gold Line |
| 2004 Pontiac AztekFront Upper | — | AWD | V6 3.4L | — |
| 2003 Pontiac AztekFront Upper | — | AWD | V6 3.4L | — |
| 2002 Pontiac AztekFront Upper | — | AWD | V6 3.4L | — |
| 2001 Pontiac AztekFront Upper | — | AWD | V6 3.4L | — |
| 1999 Buick LeSabreFront Upper | — | — | V6 3.8L | Note: late design w/o spring guard |
| 1999 Oldsmobile 88Front Upper | — | — | V6 3.8L | Note: LEFT HAND|Shock Mount |
| 1999 Oldsmobile LSSFront Upper | — | — | V6 3.8L | Note: LEFT HAND |
| 1999 Pontiac BonnevilleFront Upper | — | — | V6 3.8L | Note: w/o Spring Guard |
| 1998 Buick LeSabreFront Upper | — | — | V6 3.8L | Note: late design w/o spring guard |
| 1998 Oldsmobile 88Front Upper | — | — | V6 3.8L | Note: exc elec adj suspension |
| 1998 Oldsmobile LSSFront Upper | — | — | V6 3.8L | — |
| 1998 Oldsmobile RegencyFront Upper | — | — | V6 3.8L | Note: LEFT HAND |
| 1998 Pontiac BonnevilleFront Upper | — | — | V6 3.8L | — |
| 1997 Buick LeSabreFront Upper | — | — | V6 3.8L | Note: late design w/o spring guard |

WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, known to the State of California to cause cancer and reproductive harm. Service the vehicle in a well-ventilated area, wear gloves, and wash your hands. See www.P65Warnings.ca.gov/motor-vehicle-parts

Guaranteed fit — or free return
Guaranteed to fitFits your vehicle or we pay the return. Learn more
If a part we confirmed for your vehicle does not fit, we cover the return shipping and refund you in full. That is the fitment guarantee.
Free Returns if it doesn't fitRead Details
Nobody likes buying a part that turns out to be wrong. So if it doesn't fit, send it back for a full refund at no cost to you — return shipping is on us — and we'll help you get the right one.
AutoBuffy 24-month guaranteeCovered on this part, unlimited miles. Learn more
Every part is covered for 24 months. Many brands add their own manufacturer warranty on top.
4.9/5 ratingFrom 19,069 verified customers. Learn more
Ratings come from verified AutoBuffy buyers after delivery — no imported or paid reviews.


The brand behind your
Suspension Coil Spring Seat
Westar builds this Suspension Coil Spring Seat to original-equipment standards.

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Front Upper Suspension Coil Spring Seat | Westar ST-3973 Fits Oldsmobile Buick Pontiac
Guaranteed fit or free return

Front Upper Suspension Coil Spring Seat | Westar ST-3973 Fits Oldsmobile Buick Pontiac
In stock· ships today
Fast shipping · Get it by Tue, Oct 20
Delivering to your area ·

Key Features
About This Suspension Coil Spring Seat
This Westar automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- •Unusual noises from the component area
- •Decreased vehicle performance
- •Warning lights on dashboard
- •Visible wear or damage
- •Failed vehicle inspection

Westar
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Westar is a trusted manufacturer of quality automotive parts.
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The brand behind your
Suspension Coil Spring Seat
Westar builds this Suspension Coil Spring Seat to original-equipment standards.
The Westar Suspension Coil Spring Seat (ST-3973) is a direct-fit replacement for 1990-2005 Oldsmobile, Buick, Pontiac and 1 other make. UPC 656591239734. In stock.
About This Product
Suspension Coil Spring Seat
The Westar Suspension Coil Spring Seat (ST-3973) is a direct-fit replacement for 1990-2005 Oldsmobile, Buick, Pontiac and 1 other make. UPC 656591239734. In stock.
This Westar automotive component is engineered to meet or exceed OEM specifications for reliable performance and long service life.
Key Features
- Meets or exceeds OEM specifications
- Direct-fit replacement design
- Rigorously tested for durability
- Professional-grade construction
- Backed by manufacturer warranty
Signs This Part Needs Replacement
- Unusual noises from the component area
- Decreased vehicle performance
- Warning lights on dashboard
- Visible wear or damage
- Failed vehicle inspection

Brand-first. Fitment-obsessed.
We only sell brands automakers trust, and we double-check the fit on every listing.
Top curated brands only
The brands automakers put on the car.
Obsessed with fitment
Year, make, model, trim, engine, plus the fine print.
Search any part number
Your old part, a competitor, or the dealer #. We confirm the match.
Shop owner? Get BuffyPro business pricing

Fitment Obsessed
Every part checked against your exact year, make, model, trim, and engine.
Wrong Fit? On Us.
Free return shipping, no restocking fee — the fitment guarantee.
Brands OEMs Trust
The names automakers actually put on the car.
Millions of Parts, One Promise
If we say it fits, it fits.




