Used Duramax LMM 6.6L for Sale — VIN-Verified.
Powerstroke, Duramax & Cummins — VIN-verified, tested diesels for Houston trucks, shipped right the first time. 0% restocking, ever.
Used & remanufactured Duramax LMM 6.6L — VIN-verified, tested, and shipped nationwide from our Pasadena, TX facility. Fits Chevy/GMC 2500HD/3500HD (2007.5-2010).
The LMM added a DPF and EGR over the LBZ, so we confirm the emissions hardware and calibration against your VIN. We inspect for injector and fuel-system wear, water-pump condition, and DPF-related regen history. Tested before quoting, with a clear call on whether it ships as a long-block or complete unit. Ultra Auto Parts TX is Houston's drivetrain specialist for used and remanufactured diesel engines, serving Pasadena, Deer Park, Baytown, La Porte, Channelview and the wider Gulf Coast truck market from our shop at 5041 Spencer Hwy, Ste 101, Pasadena, TX 77505. In a region built on work trucks, fleets and towing, we focus on the three diesel platforms Texans actually run — Ford Power Stroke, GM Duramax and Dodge/Ram Cummins — and match every long block or complete engine to your exact VIN before it ships. Unlike a general salvage yard, we treat diesels as core drivetrain, not random inventory. Every used diesel engine is VIN-verified against your truck's year, cab and emissions configuration, then inspected and tested before we quote a firm price. We speak English and Spanish, respond within 10 minutes during business hours, and back every diesel with a real warranty — so Houston owner-operators and shops buy with confidence.
Why buy a quality used diesel engines?
A diesel is the most expensive component in the truck, and a proper machine-shop rebuild often runs $8,000–$15,000+ once you add gaskets, injectors, machine work and labor. A quality tested used engine or a reman built to OEM spec gets you back on the road faster, at a fraction of that cost, with a warranty covering the assembly — not a shop's one-off labor guarantee. For a work truck losing money every day it's down, verified used or reman is usually the smarter math.
Common signs you need a replacement
We know these platforms cold: 6.0L Power Stroke head-gasket and stretched-head-bolt failures, EGR and oil-cooler issues; 6.4L Power Stroke cracked pistons; LB7 Duramax injector failures and later LLY overheating; Cummins 5.9L (12v/24v) VP44 and lift-pump issues, 6.7L DPF/EGR and injector wear; and high-mileage blowby on all three. We inspect for exactly these before quoting.
| Feature | Ultra Auto Parts TX | Typical salvage yard |
|---|---|---|
| Restocking fee | 0% — ever | ~20% |
| Warranty | 6 mo – 3 yr | 6 mo flat |
| Fitment | VIN-verified to your vehicle | Not verified |
| Drivetrain testing | Specialized per component | General salvage |
| Service | Bilingual · 10-min response | Varies |
Quick Quote Fastest lead
Send Name + Phone + Part + ZIP. VIN recommended for exact fitment.
Popular Diesel Engines We Source
Fitment Flags We Check
- Year-specific emissions hardware (EGR/DPF/SCR) must match your truck
- Long block vs complete drop-in engine — confirm what's included
- VIN 8th-digit engine code identifies the exact diesel variant
- Cab & chassis vs pickup accessories and oil-pan/turbo differences
- Automatic vs manual transmission flexplate/flywheel and sensors
- California vs federal (49-state) emissions calibration
Diesel drivetrain is our specialty — alongside engines we also supply matched heavy-duty transmissions (Allison, TorqShift, 68RFE, ZF), transfer cases and Dana/AAM axles for the same trucks.
What to send for an exact quote
- VIN (best — locks exact fitment)
- Year/make/model (F-250/2500/3500, Silverado/Sierra HD, Ram HD)
- Engine (Power Stroke/Duramax/Cummins + displacement)
- Cab type (regular/extended/crew, pickup or cab-&-chassis)
- Mileage expectation and used vs. reman preference
Every used diesel engine carries a standard 6-month warranty, extendable up to 3 years on tiered/reman options. And we charge a 0% restocking fee on all returns — no penalty for making it right.
Diesel engines are heavy freight — local Houston-area delivery is free with our own drivers, while regional and out-of-state moves ship by freight at exact or quoted cost; we confirm the timing before we promise it.
How It Works
FAQ — Used Diesel Engines in Houston, TX
Where can I buy a used diesel engine in Houston?
Ultra Auto Parts TX at 5041 Spencer Hwy, Ste 101, Pasadena, TX 77505 (Houston area) stocks and sources used and remanufactured Power Stroke, Duramax and Cummins diesel engines. Call or text (281) 436-9991, WhatsApp 832-373-0342, Mon–Fri 8–5 CT. Every diesel is VIN-verified before it ships.
Do you handle 6.0L Power Stroke and other known diesel problem engines?
Yes, and we're honest about them. We inspect for the exact known failures — 6.0L Power Stroke head gaskets and EGR/oil coolers, 6.4L cracked pistons, LB7 Duramax injectors, Cummins lift-pump and DPF issues — before we quote. We tell you the engine's real condition instead of selling blind.
What warranty comes with a used diesel engine?
A standard 6-month warranty on used diesel engines, extendable up to 3 years with tiered and remanufactured options built to OEM spec. That covers the engine assembly, so a work truck is protected well beyond the drive home.
Is there a restocking fee if the diesel engine doesn't work out?
No. Ultra Auto Parts TX charges a 0% restocking fee on all returns — ever. If something isn't right, we make it right and expedite the correct engine fast, with no return penalty stacked on top.
How do you confirm the diesel engine fits my truck?
We match by VIN, using the 8th-digit engine code, your year and cab type, and — critically for diesels — your emissions year (EGR/DPF/SCR) and federal vs. California calibration. Send your VIN and we verify fitment before quoting.
¿Tienen motores diésel usados para troca?
Sí. En Ultra Auto Parts TX conseguimos motores diésel usados y remanufacturados Power Stroke, Duramax y Cummins para tu troca, verificados por VIN. Estamos en 5041 Spencer Hwy, Ste 101, Pasadena, TX 77505. Llama o manda texto al (281) 436-9991 o WhatsApp 832-373-0342, lunes a viernes 8–5. Te atendemos en español.
Ultra Auto Parts TX is a used and remanufactured drivetrain-parts dealer in Pasadena, TX (Houston metro). 5041 Spencer Hwy Ste 101, Pasadena TX 77505 · (281) 436-9991 · Mon–Fri 8am–5pm CT · Bilingual · 0% restocking · 6mo–3yr warranty.
Looking for a used diesel engine in Houston, TX? Ultra Auto Parts TX in Pasadena supplies VIN-verified, tested used and remanufactured Ford Power Stroke (7.3L, 6.0L, 6.4L, 6.7L), GM 6.6L Duramax and Dodge/Ram Cummins (5.9L, 6.7L) diesel engines for F-250/F-350, Silverado/Sierra 2500HD/3500HD and Ram HD trucks. As Houston's drivetrain specialist we match by VIN and emissions year, back every diesel with a 6-month to 3-year warranty and 0% restocking, and serve the whole Gulf Coast in English and Spanish.