3.0L I-6 LZ0 DURAMAX TURBO DIESEL

3.0L I-6 LZ0 Duramax Turbo Diesel Engine for Sale, Used GM 3.0 Duramax, Low Mileage

Key Features

• Low mileage unit, under 80,000 miles verified
• Turbocharged inline-six diesel, updated LZ0 platform
• Compression tested and turbocharger inspected before shipping
• No unusual noise, no smoke, no signs of internal damage
• Emissions equipment intact on inspected units
• 6-month warranty against mechanical defects
• Ships from Cleveland, Ohio to all 50 states on secured freight pallet
• Most orders processed and shipped within 1 to 3 business days

The LZ0 Duramax at McClain Auto Part

The 3.0L LZ0 Duramax is GM’s updated inline-six turbo diesel for the half-ton truck and SUV market. It replaced the earlier LM2 variant and brought meaningful refinements to an already well-received platform. Silverado and Sierra owners who want diesel fuel economy without moving to a heavy duty truck have made this engine one of the more requested diesel units we handle at our Cleveland, Ohio warehouse.

At McClain Auto Part we have been sourcing and selling used engines since 2009. The LZ0 Duramax is a newer platform and the buyers who need it tend to know exactly what they are looking for. Replacement engines for collision-damaged trucks, warranty-expired high mileage units, or simply a clean low mileage core for a truck that sees serious towing work. We stock verified units, inspect every one before it ships, and back every sale with a 6-month warranty.

James McClain founded this business on straightforward principles. Represent the engine accurately, inspect it properly, and stand behind it after the sale. That approach applies to every LZ0 Duramax engine for sale we ship.

What Makes the LZ0 Duramax Worth Buying

The 3.0 Duramax diesel engine sits in a specific and useful position in the GM truck lineup. It is not a heavy duty platform. It is an inline-six turbo diesel engineered for efficiency, refinement, and everyday usability in a half-ton truck or large SUV. For buyers who cover long highway miles, tow moderate loads regularly, or simply want diesel fuel economy in a vehicle that also serves as a daily driver, the LZ0 delivers that combination consistently.

The inline-six configuration contributes to smooth power delivery. There is no inherent vibration imbalance in a straight-six and the LZ0 runs noticeably smoothly compared to diesel V8 platforms. The turbocharger setup provides good low-end torque response without the turbo lag that characterizes older diesel designs. Towing within the Silverado 1500 rated capacity feels unhurried and the highway cruise efficiency is genuinely impressive for a diesel truck engine.

What the LZ0 is not is a high output performance diesel. Buyers expecting heavy duty towing numbers should be looking at the 6.6L Duramax platform instead. The LZ0 is optimized for efficiency and refinement in the half-ton application and it delivers on that purpose well.

Engine Specifications

GM 3.0L LZ0 Duramax Turbo Diesel, General Specifications

• Engine Type: Inline-six, turbocharged diesel, DOHC, 24 valves
• Displacement: 3.0L, 183 cubic inches
• Configuration: Longitudinal inline-six
• Fuel System: Common rail direct injection
• Turbocharger: Variable geometry turbocharger
• Horsepower: Approximately 277 HP
• Torque: Approximately 460 lb-ft
• Emissions Equipment: DEF system, DPF, EGR
• Engine Family: GM Duramax diesel platform, LZ0 designation
• Factory Applications: Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Tahoe, Chevrolet Suburban, GMC Yukon, Cadillac Escalade diesel variants

Specifications reflect factory LZ0 figures. Minor variations may exist depending on model year and specific application. Call us to confirm specifics on the unit currently in stock.

How We Inspect Every LZ0 Before It Ships

The LZ0 Duramax is a precision diesel engine with emissions equipment and a variable geometry turbocharger. Inspection on this platform goes beyond a standard compression test and visual pass.

Our Inspection Process

• Compression tested on every cylinder with actual numbers recorded
• Full visual inspection of the block, heads, and external components for cracks, leaks, and damage
• Turbocharger inspected for shaft play, vane condition on the variable geometry system, and housing integrity
• Common rail fuel system checked for external leaks and injector seal condition
• Oil condition checked for contamination and signs of extended service intervals
• Coolant passages inspected for signs of internal mixing or head issues
• EGR and DPF components visually inspected where accessible
• Mileage verified against donor vehicle records
• No unusual smoke, no unusual noise confirmed before packaging

The variable geometry turbocharger on the LZ0 requires specific attention during inspection. Stuck vanes are a known maintenance item on this platform at higher mileage. We check turbo response and vane movement on every unit before it ships.

Vehicle Compatibility

Common Factory Applications

The GM 3.0L Duramax LZ0 engine was used in the following vehicles:

• Chevrolet Silverado 1500 diesel, 2022 to present
• GMC Sierra 1500 diesel, 2022 to present
• Chevrolet Tahoe diesel, 2021 to present
• Chevrolet Suburban diesel, 2021 to present
• GMC Yukon and Yukon XL diesel, 2021 to present
• Cadillac Escalade diesel variants, 2021 to present

The LZ0 is an emissions-equipped diesel engine with DEF system integration and a DPF. Replacement requires ECU compatibility, emissions system integrity, and correct wiring harness for the specific vehicle application. Call us with your VIN before ordering and we confirm compatibility for your exact vehicle and model year.

LZ0 vs LM2, What Changed and Why It Matters

Buyers who have researched the 3.0 Duramax platform will encounter both the LM2 and LZ0 designations. Understanding the difference matters when sourcing a replacement engine.

The LM2 was the original 3.0L Duramax introduced in the Silverado and Sierra 1500 in 2019. It established the platform in the half-ton market and was generally well received. The LZ0 followed as an updated variant applied to the refreshed Silverado and Sierra and expanded to SUV applications including the Tahoe, Suburban, Yukon, and Escalade.

The LZ0 brought calibration refinements, updated emissions tuning, and application-specific modifications for the SUV platforms it was introduced into. The core architecture is closely related but the two are not straightforward interchangeable replacements. ECU calibration, emissions system integration, and specific mounting or accessory differences mean that substituting one for the other requires careful confirmation.

If you have an LM2 application and are asking whether an LZ0 will substitute, the honest answer is that it requires verification specific to your year and chassis. Call us and we talk through it before you order.

Warranty

Every LZ0 Duramax engine we sell comes with a 6-month warranty covering internal mechanical defects. If the engine develops a covered mechanical failure within that period, contact our team. We review the situation and work toward a fair resolution. Replacement engine, credit, or repair guidance depending on what happened and what is available.

James McClain has been honoring warranty claims since 2009. We are not looking for technicalities to avoid a legitimate claim. If it failed because of something on our end, we take care of it.

Shipping

We ship from Cleveland, Ohio to all 50 states. The LZ0 Duramax ships on a freight pallet, fully secured and protected for transit. Most orders are processed and ready to ship within 1 to 3 business days after confirmation and payment.

You receive a tracking number as soon as the engine leaves our facility.

Why Buyers Come to McClain Auto Part

Over 15 years in business. More than 10,000 engines shipped to mechanics, shops, and vehicle owners across the country. Rated 4.9 out of 5 stars across 800+ verified Google reviews. Founded by James McClain in Cleveland, Ohio in 2009.

We are not a listing service. Every engine we sell is physically in our Cleveland warehouse, inspected by our team, and ready to ship. When you call us about an LZ0 Duramax engine for sale you are talking to someone who understands the platform and can give you accurate information about what we have in stock.

A fleet service manager who ordered from us said: “Needed a clean LZ0 for a Tahoe diesel. McClain had it in stock, confirmed the mileage and emissions equipment before shipping, arrived on schedule and installed without issues. Exactly what we needed and no surprises.”

Frequently Asked Questions

What Vehicles Use the LZ0 Duramax Engine?

The LZ0 is used in the Chevrolet Silverado 1500 diesel, GMC Sierra 1500 diesel, Chevrolet Tahoe diesel, Chevrolet Suburban diesel, GMC Yukon diesel, and Cadillac Escalade diesel variants from 2021 and 2022 forward depending on the model. Call us with your VIN to confirm your specific application.

Is the Engine Tested Before Shipping?

Yes. Every used LZ0 Duramax engine goes through compression testing, turbocharger inspection, visual inspection, oil condition check, and mileage verification at our Cleveland facility before packaging.

What Is Included With the Engine?

Most units include the complete engine assembly with turbocharger, intake manifold, and associated emissions components. Exactly what is attached varies depending on how the engine was removed from the donor vehicle. Call us before ordering and we confirm what is included on the specific unit we have in stock.

How Many Miles Are on This Engine?

Under 80,000 miles, verified from donor vehicle records. Most of our current LZ0 inventory comes in lower than that. We give you the exact mileage on the specific unit before you commit to the order.

Is the Turbocharger Included?

The turbocharger is typically part of the engine assembly on the LZ0 units we stock. We inspect the variable geometry turbo on every unit before shipping. Confirm with us that the turbocharger is present and in acceptable condition on the specific unit before ordering.

Does This Engine Fit LM2 Applications?

The LM2 and LZ0 are closely related but not directly interchangeable without verification. ECU calibration, emissions integration, and application-specific differences exist between the two variants. Call us with your VIN and current engine designation and we give you an honest answer about compatibility before you order.

What Does the Warranty Cover?

Six months from purchase date against internal mechanical defects. If the engine develops a covered failure, contact us and we work toward a resolution. The warranty covers the engine itself. It does not cover installation labor, emissions system components that failed due to external factors, or damage caused by improper installation or maintenance after delivery.

Ready to Order Your LZ0 Duramax Engine?

Clean low mileage LZ0 Duramax engines are in demand and inventory on newer diesel platforms moves faster than standard gasoline units. If you need a used LZ0 Duramax engine from a seller who inspects what they sell and stands behind it, call us, email us, or place your order now.

We confirm mileage, emissions equipment, fitment, and exactly what is included before anything ships. Most orders leave our Cleveland warehouse within 1 to 3 business days.

McClain Auto Part. Cleveland, Ohio. In business since 2009. 10,000+ engines shipped. 4.9 stars on Google. 6-month warranty on every engine we sell.