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.
Known issues we check on the Duramax LMM
The 2007.5-2010 LMM added a DPF and EGR over the LBZ, so we review the emissions and regen history along with the fuel system, since injector and fuel-system wear are the common failure points. We also check the water pump, a known weak spot on these trucks. Because DPF regen behavior affects engine health, we verify the aftertreatment side before quoting. Every LMM is VIN-matched to your 2500HD or 3500HD and drivetrain-tested in Pasadena first.
Used vs. remanufactured Duramax LMM — which to buy
A tested used LMM is a strong value when the fuel system and water pump check out, and ours are inspected for exactly those issues. Remanufactured is worth it if your truck is high-mileage and you want the injector and fuel-system wear addressed from the start plus the longer warranty. We stock both and match to your budget and towing needs. Send your VIN and we will give you honest advice for your 2500HD or 3500HD.
Why buy a quality used diesel engines?
A diesel is the most expensive component in the truck, and a proper machine-shop overhaul 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.
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 Duramax LMM engine near me in Houston?
Ultra Auto Parts TX carries tested Duramax LMM engines at 5041 Spencer Hwy Ste 101 in Pasadena, near Houston. We provide free local Houston delivery and nationwide shipping. We are open Monday through Friday 8 to 5 Central and serve customers in English and Spanish. Call 281-436-9991 or text 281-436-9991 with your VIN for a tested unit.
How much does a used Duramax LMM engine cost?
Pricing depends on mileage, used versus remanufactured, and the exact 2007.5-2010 configuration your truck needs. Rather than guess, we ask for your VIN so we quote the correct tested engine. Every order includes a 0% restocking fee, so there is zero risk if your plans change. Send your VIN to 281-436-9991 for an accurate number.
How do you verify a Duramax LMM fits my 2500HD or 3500HD?
We match by VIN to the correct 2007.5-2010 configuration and confirm the DPF and EGR emissions setup lines up with your truck. We also review injector, fuel-system, and water-pump condition before quoting since those are the known weak points. Send your VIN to 281-436-9991 and we confirm exact fitment first.
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.