2.8L I-4 LWN Duramax® Turbo-Diesel

Small Footprint.
Big Impression.

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Horsepower:  181 hp @ 3400 rpm*
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Torque:  369 lb-ft @ 2000 rpm*
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Cylinders:  4
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2.8L LWN Duramax Turbo-diesel Engine from GM Powertrain

2.8L I-4 LWN Features
& Specifications

The engine is part of GM’s global family of turbo-diesel four-cylinder engines and features a variable-geometry turbocharger for optimal power and efficiency across the rpm band and a balance shaft for smoothness. A broad torque band makes the Duramax® 2.8L powerful at low rpm, while the turbocharged performance provides a confident feeling of smooth, immediate horsepower on demand.

Combustion System: Compression ignition
Induction System: Variable-geometry turbocharger
Displacement: 2776 cc
Engine Orientation: Longitudinal
Compression Ratio: 16.5:1
Valve Configuration: Dual overhead camshafts
Valves per Cylinder: 4
Valve Timing: Fixed
Assembly Sites: Rayong, Thailand
Firing Order: 1 - 3 - 4 - 2
Bore x Stroke: 94.00 x 100.00 mm
Fuel System: Direction injection common rail
Fuel Type: Ultra-Low Sulfur Diesel and B20 Biodiesel
Engine Mass: 236 kg (520 lb)
Horsepower: 181 hp (135 kW) @ 3400 rpm*
Torque: 369 lb-ft (500 Nm) @ 2000 rpm*
Maximum Engine Speed: 5000 rpm
Emissions Control: Close coupled diesel oxidation catalyst, selective catalytic reduction with urea injection, diesel particulate filter, cooled exhaust gas recirculation valve, positive crankcase ventilation
Emissions Standard: Tier 3 BIN 125/ULEV 125 (Colorado/Canyon) Tier 3 BIN 250/ULEV 250 (Express/Savana)
Block: Grey cast iron
Cylinder Head: Aluminum
Intake Manifold: Composite
Exhaust Manifold: Cast iron
Crankshaft: Forged steel
Camshaft: Powdered metal/sintered lobes
Connecting Rod: Forged steel
* As tested in Chevrolet Colorado.