Buick Enclave Suspension Strut Bellows Guide (2008-2020)
Protecting your Enclave's expensive struts starts with this simple but critical part.
- A torn strut bellows is a visual-only problem that does not immediately affect driving.
- Ignoring a torn bellows will cause the expensive strut assembly to fail prematurely from contamination.
- Replacing only the bellows is a difficult, high-labor job; replacing the entire strut assembly is often a better value.
- An alignment is needed after the repair to prevent tire wear.
Is Your Strut Bellows Damaged?
The only way to know if a strut bellows has failed is to look at it. During a tire rotation or oil change, look behind the front wheels at the strut assembly. The bellows is the rubber or plastic boot covering the shiny metal rod that goes into the main strut body. If you see that this boot is torn, cracked, or missing, it needs to be replaced. A damaged bellows itself doesn't cause any immediate driving problems, but it guarantees that the much more expensive strut will fail prematurely.
Symptoms of Eventual Strut Failure
Ignoring a torn bellows will lead to the failure of the entire strut assembly. When the strut fails, you will notice:
- Clunking Noises: Sounds coming from the front suspension when driving over bumps or turning.
- Bouncy Ride: The Enclave will feel unstable and bounce multiple times after hitting a dip in the road.
- Nose-Diving: The front of the vehicle will dip down excessively when you apply the brakes.
- Visible Fluid Leaks: You may see oil leaking down the side of the strut body, which is a definite sign of failure.
Warning: Bellows-Only vs. Full Strut Assembly Replacement
Replacing only the strut bellows is a difficult and labor-intensive job. It requires the entire strut assembly to be removed from the vehicle. Then, a special tool called a spring compressor must be used to safely remove the high-tension coil spring. This process is dangerous if not done correctly. For many Buick Enclave owners, it makes more financial and practical sense to replace the entire strut assembly (a 'quick-strut') which includes a new strut, spring, mount, and bellows all in one unit. This is often safer, faster, and provides the benefit of all-new suspension components.
Choosing the Right Aftermarket Bellows
If you decide to proceed with a bellows-only replacement, you have options. The quality of the material is key to how long the new part will last.
- Premium Brands (KYB): KYB is a highly respected manufacturer that produces parts equivalent to original equipment. Their bellows are made from high-quality materials designed to resist tearing and temperature extremes, offering the longest-lasting protection for your strut.
- Economy Brands (Skyward): Budget-friendly brands like Skyward offer a lower-cost alternative. While functional, the materials may not be as durable as premium options. This can be a viable choice for older, higher-mileage vehicles or if budget is the primary concern, but be aware it may not last as long as a premium part.
Pro Tip: Inspect Other Parts
While the strut is disassembled, it is the perfect time to inspect the upper strut mount and bearing. These parts also wear out and can cause noises or steering issues. Replacing them at the same time as the bellows can save you from paying for the same labor twice in the future.
Cost to Replace Buick Enclave Strut Bellows
| Part Type | Part Cost (Per Side) | Labor Cost (Per Side) | Total Cost (Per Side) |
|---|---|---|---|
| New Aftermarket Bellows | $20 - $47 | $250 - $450 | $270 - $497 |
| New OEM Bellows | $20 - $50 | $250 - $450 | $270 - $500 |
| New Aftermarket Complete Strut Assembly | $70 - $250 | $170 - $285 | $240 - $535 |
Frequently Asked Questions
Are there any recalls for the Buick Enclave suspension?
No, there are no safety recalls for the suspension struts or bellows on the 2008-2020 Buick Enclave. Recalls have been issued for unrelated parts like airbags and power liftgate struts, but these do not affect the driving suspension.
What is TSB 22-NA-239?
General Motors issued Technical Service Bulletin 22-NA-239 for some 2020-2023 models, including the Enclave, to address a noise caused by the front coil spring rubbing against the inner fender. This is not related to a failed bellows but is a known suspension noise issue on later models.
Can I replace just one strut bellows?
Yes, you can replace just one. Unlike struts which should always be replaced in pairs, a bellows is a protective cover. However, if the bellows on one side has failed due to age, the other side is likely not far behind. It's wise to inspect both sides and consider replacing them at the same time to save on future labor.
Is an alignment necessary after replacing the bellows?
Yes. Because the entire strut assembly must be removed and reinstalled, a front-end alignment is highly recommended to prevent uneven tire wear and ensure proper handling.
Technical Specifications
OEM Part Numbers: 20879998
Aftermarket Part Number for 2008-2017 models: KYB SB101.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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