39
verified 2014 gmc engines
2014 Used GMC Engines For Sale
39 verified 2014 GMC engines in stock — Sierra 1500 (4.3L LV3, 5.3L L83, 6.2L L86 EcoTec3, first year), Sierra HD 2500/3500 (6.0L L96 gas, 6.6L LML Duramax), Yukon & Yukon XL (5.3L LMG, 6.2L L94 GMT900), Terrain, Acadia, Suburban 1500, and Savana vans. VIN-matched to your vehicle, compression-tested by certified technicians, photographed before shipment, backed by up to a 3-year warranty plus 30-day money-back. Free freight nationwide.
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Compression-Tested & Verified
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Free Nationwide Shipping
Browse 2014 GMC Engines by Model
Pick your 2014 GMC model to see exact fitments in stock. Not sure which engine code fits? Text us your VIN and a specialist confirms the match.
2014 Sierra 1500
First EcoTec3 year — 4.3L V6 (VIN H, opt LV3), 5.3L V8 (VIN C, opt L83) and 6.2L V8 (VIN J, opt L86), including the Sierra Denali 1500. Confirm the 8th-digit VIN before ordering.
2014 Sierra HD 2500/3500
GMT900-based heavy-duty — 6.0L Vortec gasoline (VIN G, opt L96) and the 6.6L Duramax LML turbodiesel (VIN 8), Sierra and Sierra Denali 2500/3500.
2014 Yukon & Yukon XL
Final GMT900 year — 5.3L (VIN 0, opt LMG; VIN 7, opt LC9) and 6.2L (VIN F, opt L94) V8 — full-size SUV including the Yukon XL 1500.
2014 Terrain
2.4L Ecotec four (VIN K, opt LEA — Federal & California emissions families) and 3.6L V6 (VIN 3, opt LFX).
2014 Acadia
3.6L V6 (VIN D, opt LLT) — the first-generation Lambda crossover engine. Verify the VIN 8th digit before ordering.
2014 Suburban 1500
GMT900 full-size SUV — 5.3L V8 (VIN 0, opt LMG; VIN 7, opt LC9) long-wheelbase application.
2014 Savana 1500/2500/3500 Van
4.3L (VIN X, opt LU3), 5.3L (VIN 4, opt LMF), 4.8L (VIN A, opt L20), 6.0L gasoline (VIN G, opt L96), 6.6L Duramax LGH diesel (VIN L), plus 6.0L CNG/LPG (opt LC8) fleet options.
Why Buy a 2014 GMC Engine from Auto Power Source
Every 2014 GMC engine in our inventory is pulled from a low-mileage donor vehicle, cataloged by VIN, and held in our climate-controlled 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.
2014 was the debut year of GM's EcoTec3 family in the light-duty Sierra 1500 (5.3L L83 and 6.2L L86 with Active Fuel Management and direct injection), while the Yukon, Yukon XL and Suburban carried over the previous-generation GMT900 5.3L and 6.2L V8s and the Sierra HD kept the proven 6.0L L96 and 6.6L LML Duramax — so getting the right VIN-8 code matters more this year than most. Our certified technicians compression-test every cylinder and run a leak-down evaluation before any 2014 GMC engine is cleared for sale. You pay a fraction of dealer-new pricing for identical GMC 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 which 2014 variant fits? Text your VIN and we will confirm.
📱 Fastest way to match: text us your VIN, get options in minutes.Text Your VIN →
Your 2014 GMC Engine Options: Compared
Most 2014 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 GMC engineering as new, fraction of the cost.
2014 GMC Engine Buying Guide
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Confirm the 8th-digit VIN code. 2014 GMC distinguishes the 4.3L (H/LV3), 5.3L (C/L83), 6.2L (J/L86) and 6.6L Duramax (8/LML) this way — same truck, different engine.
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Know the EcoTec3 vs GMT900 split. The 2014 Sierra 1500 uses the new EcoTec3 engines, but the Yukon, Yukon XL and Suburban are still GMT900 with the older 5.3L LMG/LC9 and 6.2L L94 — they are not interchangeable.
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Match gas vs Duramax diesel on HD trucks. The Sierra 2500/3500 ships with the 6.0L L96 gasoline or the 6.6L LML turbodiesel — confirm which your truck has.
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Note Terrain emissions family. The 2.4L LEA Terrain comes in Federal and California (opt NU5/NU6) emissions calibrations — match yours.
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Watch Savana fuel system. Savana vans came in gasoline, 6.6L LGH diesel, and dedicated CNG/LPG (LC8) — confirm the fuel type before ordering. Always run the donor VIN; we provide it on request.
Our certified technicians verify every one of these points against your VIN before any engine ships.
Frequently Asked Questions
What is the warranty on a 2014 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. 2014 GMC engines vary by engine code, drivetrain, fuel type, and emissions family.
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?
It is the same GMC-engineered engine pulled from a low-mileage donor — you skip the new-part markup while keeping factory fitment.
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 2014 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: turbos, manifolds, valve covers, accessories, sensor harnesses.
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 2014 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
