41
verified 2008 gmc engines
2008 Used GMC Engines For Sale
41 verified 2008 GMC engines in stock — Sierra 1500 & HD (4.8L LY2, 5.3L LMG/LC9/LY5/LH6, 6.0L L76/LY6, 6.6L LMM Duramax), Yukon & Yukon XL (incl. 6.0L LFA two-mode hybrid, 6.2L L92), Canyon (2.9L LLV / 3.7L LLR), Envoy (4.2L LL8 inline-six / 5.3L LH6 V8), Acadia (3.6L LY7), Suburban, and Savana vans. VIN-matched to your truck, compression-tested by certified technicians, photographed before shipment, backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.
●
Compression-Tested & Verified
●
Free Nationwide Shipping
Browse 2008 GMC Engines by Model
Pick your 2008 GMC model to see exact fitments in stock. 2008 spans the GMT900 trucks/SUVs plus the Lambda Acadia and the final-generation Envoy — the 8th VIN digit decides the engine code. Not sure which one fits? Text us your VIN and a specialist confirms the match.
2008 Sierra 1500
GMT900 half-ton: 4.3L LU3 (VIN X), 4.8L LY2 (VIN C), 5.3L LMG/LC9/LY5/LH6 (VIN 0/3/J/M), 6.0L L76 (VIN Y). VIN-matched and compression-tested.
2008 Sierra Denali 1500
The premium AWD half-ton — 6.2L L92 (VIN 8) high-output small-block. Not interchangeable with the standard 5.3L/6.0L Sierra units.
2008 Sierra HD 2500 / 3500
Heavy-duty: 6.0L LY6 gas (VIN K) and 6.6L LMM Duramax turbodiesel (VIN 6). Confirm gas vs Duramax before ordering.
2008 Yukon & Yukon XL
4.8L LY2, 5.3L LMG/LC9/LY5, 6.0L L76, 6.0L LFA two-mode Hybrid (VIN 5), 6.2L L92 (VIN 8); XL2500 6.0L LY6 (VIN K).
2008 Canyon
Midsize pickup: 2.9L LLV four (VIN 9) and 3.7L LLR inline-five (VIN E). Match displacement to your VIN.
2008 Envoy
Final-generation midsize SUV: 4.2L LL8 Atlas inline-six (VIN S) and 5.3L LH6 V8 (VIN M). The six and the V8 share nothing.
2008 Acadia
Lambda crossover: 3.6L LY7 high-feature V6 (VIN 7). Front- or all-wheel drive — confirm drivetrain at the order step.
2008 Suburban
1500: 5.3L LMG/LC9/LY5, 6.0L L76 (VIN Y). 2500: 6.0L LY6 (VIN K). VIN-matched to your body style.
2008 Savana Van
1500: 4.3L LU3, 5.3L LMF (VIN 4). 2500 / 3500: 4.8L LY2, 6.0L LY6, 6.6L LMM Duramax (VIN 6). Cargo and passenger fitments.
Why Buy a 2008 GMC Engine from Auto Power Source
Every 2008 GMC engine in our inventory is pulled from an inventory-verified donor vehicle, cataloged by VIN, and held in our warehouse pending sale. Each unit goes through our six-step inspection — VIN-matching, compression testing, noise & smoke verification, full visual inspection, multi-angle photography, and palletized shipping. From the GMT900 5.3L and 6.0L small-blocks to the 6.6L LMM Duramax and the Atlas inline-six in the Envoy, we match the engine code to your truck before anything ships.
Our certified technicians compression-test every cylinder and run a leak-down evaluation before any 2008 GMC engine is cleared for sale. You pay a fraction of dealer-new pricing for the same GM engineering, ship free on a heavy-duty pallet anywhere in the continental U.S., and get up to a 3-year warranty plus 30-day money-back. Not sure whether your truck runs the 5.3L LMG, LC9, LY5, or iron-block LH6? Text your VIN and we will confirm.
📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →
Your 2008 GMC Engine Options: Compared
Most 2008 GMC owners face four real choices when their engine fails:
← Swipe sideways to see all columns →
| Option |
Cost |
Reliability |
Warranty |
Fitment Match |
| Used OEM (this collection) |
$$$ Best Value |
High |
Up to 3 years |
VIN-matched |
| New OEM (dealer) |
$$$$$ 2-4× more |
High |
Manufacturer |
Exact |
| Aftermarket / Reman |
$$$$ |
Varies |
6-12 mo |
May adapt |
| Junkyard |
$ Cheapest |
Unknown |
None |
DIY |
Tested used OEM hits the sweet spot — same GM engineering as new, fraction of the cost.
2008 GMC Engine Buying Guide
-
Read the 8th VIN digit. On a 2008 GMC the 5.3L alone splits into LMG (VIN 0), LC9 (VIN 3), LY5 (VIN J), and iron-block LH6 (VIN M) — same displacement, different engine code.
-
Match the truck family. A light-duty Sierra/Yukon 6.0L (L76, VIN Y) is not the heavy-duty 6.0L LY6 (VIN K) used in the HD trucks, Suburban 2500, and Savana.
-
Gas vs Duramax on 2500/3500. Sierra HD and Savana 2500/3500 ship with either the 6.0L LY6 gas or the 6.6L LMM Duramax turbodiesel (VIN 6) — completely different engines.
-
Watch the Denali and Hybrid specials. The 2008 Sierra Denali / Yukon Denali use the 6.2L L92 (VIN 8), and the Yukon Hybrid runs the 6.0L LFA two-mode (VIN 5) — neither swaps with a standard small-block.
-
Always run the donor VIN if available. We provide it on request for any engine in our inventory to verify mileage and history.
Our ASE-certified technicians verify every one of these points against your VIN before any engine ships.
Frequently Asked Questions
What is the warranty on a 2008 GMC engine?
Up to 3 years, depending on the specific unit. The exact warranty term is listed on each product page.
What does compression-tested mean?
Our certified technicians compression-test every cylinder and run a leak-down evaluation before the engine is cleared for sale.
How long until delivery?
Prep and ship time is 3-5 business days. Transit time is 2-3 business days via freight carrier after dispatch.
Can I see photos before I buy?
Yes. Multi-angle photos of the actual unit are sent before payment.
Do I need my VIN?
Strongly recommended. 2008 GMC engines vary by engine code, truck family, and drivetrain — the 8th VIN digit confirms the exact match.
What if I do not approve the photos?
Every dollar back — no restocking fees, no return freight charges.
Why is a used OEM engine cheaper than the dealer?
You get the same GM engineering from a verified donor unit at a fraction of dealer-new pricing, with free freight and up to a 3-year warranty.
When can I reach customer service?
Our team is available 24 hours a day, Monday through Saturday, by phone at 1-877-313-8995 or by text.
46,000+
engines + transmissions shipped
0%
fitment-related returns
All 50
states covered, free freight
Excellent
Customer Reviews
rated on Trustpilot
Our 6-Step Inspection & Shipping Process
Every 2008 GMC engine we ship has been through these six steps:
1. VIN-MatchingWe match the donor VIN to your VIN to confirm engine code, emissions calibration, and drivetrain fit.
2. Tested & VerifiedCertified technicians compression-test every cylinder and run a leak-down evaluation on each engine.
3. Noise & Smoke VerificationUnits are run to verify normal mechanical sound and clean operation — catches wear static tests miss.
4. Visual InspectionEvery accessible component is inspected: manifolds, valve covers, accessories, sensor harnesses, turbo on Duramax units.
5. Photograph & CatalogMulti-angle photos sent to you BEFORE we ship, for your approval.
6. Palletize & ShipStrapped on a heavy-duty wooden pallet, shipped via freight at no charge.
What Our Customers Say
Rated Excellent by our customers on Trustpilot.
★★★★★
Transaction was perfect
"Found me the right engine at a great price. Got it in 2 days and installed the car the next day. Runs absolutely beautiful."
— Kevin Graham, 2026-04-29
★★★★★
Repeat customer
"AutoPowerSource is a great company. I've used them several times for used motors. Low mileage when other companies gave up."
— Curtis Haines, 2025-12-23
★★★★★
Highly recommend Mike
"Mike reached out first thing in the morning regarding my inquiry for a used engine. Very informative and helpful."
— Beatrice, 2026-03-31
★★★★★
Great experience
"Daisy kept me in the loop every step. My original engine was damaged before shipping; she found a different one quickly."
— Bryan Perkins, 2026-03-25
Our Photos-Before-Shipment Guarantee
Before any 2008 GMC engine leaves our warehouse, we send you multi-angle photographs. You approve. If you do not approve, you get every dollar back — no questions, no restocking fees, no return freight charges. On top of 30-day money-back and up to a 3-year warranty.
✉ Email Us at info@autopowersource.com
