Remanufactured 6.6L Duramax LB7/LLY Diesel Engine — Houston, TX.
A remanufactured 6.6L Duramax LB7/LLY Diesel engine, built to OEM spec, tested and VIN-verified for your exact vehicle — backed by our 3-year / 100,000-mile warranty. Shipped nationwide from Pasadena. 0% restocking, ever.
Why a Remanufactured 6.6L Duramax LB7/LLY Diesel?
The early GM 6.6L Duramax LB7 is famous for injector failure (they’re inside the valley), and the LLY for overheating when towing. A remanufactured LB7/LLY is built to OEM spec with injectors and cooling weak points addressed, VIN-matched to your Silverado/Sierra 2500/3500, warrantied 3yr/100k.
Warranty
Fits These Vehicles
The same 6.6L Duramax LB7/LLY Diesel engine family covers these applications — we VIN-match the exact variant.
What's Included & Tested
- built to OEM spec — new bearings, seals & gaskets
- Compression & leak-down verified
- VIN-matched block, heads & accessories
- Break-in oil & instructions included
- Core deposit — refunded on return of your old unit
- Free local Houston delivery · nationwide shipping
Frequently Asked Questions
How much is a remanufactured 6.6L Duramax LB7/LLY Diesel?
Pricing depends on your exact application and options — send us your VIN and we'll confirm the correct reman unit and give you an accurate quote fast. Every order carries a 0% restocking fee. Call (281) 436-9991 or text 281-436-9991.
What vehicles does a remanufactured 6.6L Duramax LB7/LLY Diesel engine fit?
This family covers Chevy Silverado 2500/3500 (2001–2006), GMC Sierra 2500/3500 (2001–2006). Variants differ by year, sensors and accessories even within the same displacement — send your VIN and we confirm the exact match before it ships.
What's actually replaced when a 6.6L Duramax LB7/LLY Diesel is remanufactured?
The 6.6L Duramax LB7/LLY Diesel is fully disassembled, hot-tanked and machined to OEM tolerances. Diesel-specific wear points get new parts — bearings, seals, gaskets and piston rings — and the assembly is compression- and leak-down-verified before it ships. Injectors and turbos are quoted separately when your application needs them.
Used or remanufactured 6.6L Duramax LB7/LLY Diesel — which should I buy?
For a 6.6L Duramax LB7/LLY Diesel, a remanufactured unit is built to OEM spec with a 3-year/100k warranty and the known weak points addressed. A local overhaul depends on one shop and can repeat the same failure. A used 6.6L Duramax LB7/LLY Diesel is cheaper but carries unknown miles. We carry used and reman side by side — send your VIN and we'll price both.
What warranty comes with a remanufactured 6.6L Duramax LB7/LLY Diesel?
Qualifying reman units carry a third-party manufacturer warranty of up to 3 years / 100,000 miles when stated on the invoice — the strongest coverage we sell. Register with the remanufacturer after purchase (we give you the info at the point of sale). And as always: 0% restocking on returns.
Is there a core charge on a remanufactured 6.6L Duramax LB7/LLY Diesel?
Usually yes — a refundable deposit that comes back to you when you return your old engine. We state the exact core amount on your quote up front, so there are no surprises at checkout.
Do you have the 6.6L Duramax LB7/LLY Diesel available now?
Reman availability and lead time depend on the exact variant — send your VIN or year/make/model and we confirm availability and a delivery window before you commit. Local pickup in Pasadena and free Houston-area delivery are available.
Do you ship a remanufactured 6.6L Duramax LB7/LLY Diesel outside Houston?
Yes — nationwide freight from our Pasadena, TX warehouse, plus free local delivery in the Houston area with our own drivers.
Get a Remanufactured Quote
Send your VIN and we'll confirm the correct 6.6L Duramax LB7/LLY Diesel and quote you fast — used and reman side by side.
Quick Quote Fastest lead
Send Name + Phone + Part + ZIP. VIN recommended for exact fitment.