⚡ Same-day quotes • VIN fitment • 0% restocking • Houston delivery
Ultra Auto Parts TXUsed & Reman Drivetrain • Houston
Remanufactured · Built to OEM Spec

Remanufactured 6.6L Duramax LBZ/LMM Diesel Engine — Houston, TX.

A remanufactured 6.6L Duramax LBZ/LMM 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.

3-Year / 100k WarrantyVIN-Verified Fitment0% RestockingNationwide Shipping
Remanufactured 6.6L Duramax LBZ/LMM Diesel engine
Built to OEM specVIN matched3yr / 100k warranty

Why a Remanufactured 6.6L Duramax LBZ/LMM Diesel?

The GM 6.6L Duramax LBZ and LMM are among the most sought-after Duramax generations, but high-mileage units wear pistons and injectors under tuning and towing. A remanufactured LBZ/LMM is built to OEM spec with those items addressed, VIN-matched to your 2500/3500 HD, warrantied 3yr/100k.

Warranty

Reman Standard: 3 yr / 100kParts & Labor add-onExtendable up to 3 yr0% Restocking — ever

Fits These Vehicles

The same 6.6L Duramax LBZ/LMM Diesel engine family covers these applications — we VIN-match the exact variant.

Chevy Silverado 2500/35002006–2010
GMC Sierra 2500/35002006–2010

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 LBZ/LMM 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 LBZ/LMM Diesel engine fit?

This family covers Chevy Silverado 2500/3500 (2006–2010), GMC Sierra 2500/3500 (2006–2010). 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 LBZ/LMM Diesel is remanufactured?

The 6.6L Duramax LBZ/LMM 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 LBZ/LMM Diesel — which should I buy?

For a 6.6L Duramax LBZ/LMM 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 LBZ/LMM 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 LBZ/LMM 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 LBZ/LMM 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 LBZ/LMM 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 LBZ/LMM 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 LBZ/LMM 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.

Prefer phone? Call (281) 436-9991Email info@ultraautopartstx.net