Used Buick Engines For Sale
A replacement engine from the dealer can run $3,500–$8,000+. We carry the same OEM unit at 40–60% less — fitment verified before you pay a dime.
OEM Buick Powertrains · Low Miles · Tested & Inspected · Ships Free Nationwide
- OEM fitment verified — we confirm displacement, configuration, and factory build codes for your exact vehicle before quoting.
- Warranty included — every engine comes with warranty coverage. Extended warranty options may be available.
- Fast insured freight shipping — drained, palletized, and insured for safe delivery to your repair shop or address.
- Nationwide OEM inventory — engines for domestic and import vehicles inspected and ready to ship.
Check Engine Price & Availability
Takes under 60 seconds. No obligation.
Need it faster? Call (888) 488-6545 for priority quotes.
"Needed a engine for my F-150. Nationwide verified the exact match by VIN, and it showed up at my mechanic's shop palletized and ready to drop in. Saved over $2,500 vs the dealer."
— Carlos M., AZEngines for every major make
Common Buick Engine Issues
These are the most frequent reasons Buick owners need a replacement engine.
2.4L Ecotec (Verano/Encore) — Timing Chain Stretch & Oil Consumption: The 2.4L Ecotec LEA in the 2012–2017 Verano and 2013–2019 Encore develops timing chain stretch and excessive oil consumption from the same piston ring issues found in the Equinox and Terrain. The timing chain noise starts as a rattle on cold start and progresses to check engine lights for timing correlation. Replacement is typical at 80K–120K miles — the combined cost of chain job plus oil consumption repair makes a replacement engine the better value.
3.6L V6 (Enclave/LaCrosse) — Timing Chain Stretch & Intake Gasket: The 3.6L LFX in the 2008–2016 Enclave and LaCrosse develops timing chain stretch across all three chains (primary plus two cam chains) causing rough idle and multiple misfire codes. The timing chain job on the 3.6L is a major labor operation (10+ hours) — replacement is often more cost-effective, especially on units with additional wear.
3.8L Series II/III V6 (LeSabre/Park Avenue) — Intake Manifold Gasket: The legendary 3.8L V6 is mechanically bulletproof, but the plastic upper intake manifold and composite lower intake gaskets fail with age, causing coolant leaks (external or into the oil). On a 20+ year old engine with 150K+ miles, a replacement engine with lower mileage often makes more sense than performing the intake job on worn internals.
Buick Enclave and Encore engines share GM’s highest-demand 3.6L and Ecotec inventory — units are allocated fast. Get your quote now.
Why Choose Nationwide Auto Parts USA
How it works — simple and accurate
Engines vary by configuration and build codes. We verify everything first, then quote from confirmed inventory.
What affects your delivered price
Online price ranges can be misleading. We quote the exact unit for your vehicle with delivery included.
Buick Engine — Quick Answers
Are Buick engines the same as Chevrolet?
Yes — identical GM platforms. The 3.6L V6 in an Enclave is the same engine as the Traverse and Acadia. The 2.4L Ecotec in the Verano matches the Equinox. This gives us access to the full GM inventory pool for the fastest possible sourcing.
Is the Buick 3.8L V6 still available?
Yes — we still carry the 3.8L Series II and Series III V6 for the LeSabre, Park Avenue, Regal, and Century. These engines are legendary for durability and we maintain inventory from low-mileage donor vehicles.
Do you carry the Buick 2.0 turbo?
Yes — we stock the LTG and LSY 2.0L turbo Ecotec for the Regal GS, Envision, and other turbo applications. These ship with the turbocharger assembly included.
That engine isn't going to replace itself
customers quoted today — every day without your vehicle costs you money. Lock in your price in 60 seconds, no obligation.
