LML Duramax Parts
Parts for the LML Duramax (2011 to 2016).
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9/16-inch Round U-bolts (3.625 x 12) Rough Country
Rough CountryOriginal price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| /Replace your worn out U-bolts with Rough Country's durable U-Bolt kits! Our steel U-Bolt kits are offered in a variety of sizes and styles to suit ...
View full detailsOriginal price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| / -
Universal LED RGB/White Dome Light Rough Country
Rough CountryOriginal price $29.95 - Original price $29.95Original price$29.95$29.95 - $29.95Current price $29.95| /Light up the cabin of your cab with Rough Country's Universal LED Dome Light Kit! This easy-to-install LED Dome Light is both practical and enjoyab...
View full detailsOriginal price $29.95 - Original price $29.95Original price$29.95$29.95 - $29.95Current price $29.95| / -
Black Series LED 20 Inch Light Slim Line Rough Country
Rough CountryOriginal price $109.95 - Original price $109.95Original price$109.95$109.95 - $109.95Current price $109.95| /The sun never sets on a vehicle equipped with Rough Country's sleek 20-inch Slimline Cree LED Light Bar. With a powerful 7,200-lumen 100-watt outpu...
View full detailsOriginal price $109.95 - Original price $109.95Original price$109.95$109.95 - $109.95Current price $109.95| / -
V2 Shock Shaft Protector Rough Country
Rough CountryOriginal price $19.95 - Original price $19.95Original price$19.95$19.95 - $19.95Current price $19.95| /Added Protection and Durable Construction. Protect your Rough Country V2 Monotube shocks with Rough Country's V2 Shock Shaft Protectors. This innov...
View full detailsOriginal price $19.95 - Original price $19.95Original price$19.95$19.95 - $19.95Current price $19.95| / -
Air Spring Cradle Kit
Rough CountryOriginal price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| /A Dependable Solution. So, you've added an airbag system to improve the ride quality and load carrying capacity, but you don't want to lose your su...
View full detailsOriginal price $39.95 - Original price $39.95Original price$39.95$39.95 - $39.95Current price $39.95| / -
Overland Collapsible Fire Pit Carry Bag Rough Country
Rough CountryOriginal price $29.95 - Original price $29.95Original price$29.95$29.95 - $29.95Current price $29.95| /Portability and readiness are two major components of ensuring that you are prepared for your camping adventures. We've designed a carry bag for yo...
View full detailsOriginal price $29.95 - Original price $29.95Original price$29.95$29.95 - $29.95Current price $29.95| / -
EXO Winch Mount System 11-19 Chevrolet Silverado 2500/3500 Rough Country
Rough CountryOriginal price $699.95 - Original price $699.95Original price$699.95$699.95 - $699.95Current price $699.95| /Add a professional recovery and lighting solution to your vehicle with Rough Country's EXO Winch Mount System for Chevy 2500/3500 Trucks. This inno...
View full detailsOriginal price $699.95 - Original price $699.95Original price$699.95$699.95 - $699.95Current price $699.95| / -
Chevrolet Rear Wheel Well Liners 15-19 Silverado 2500HD/3500HD Rough Country
Rough CountryOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /Give your rear wheel wells superior protection and a striking, new look with Rough Country's Rear Wheel Well Liners. Made of high-density Polyethyl...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| / -
Traction Bar Kit 11-19 Silverado/Sierra 2500/3500HD 4WD Rough Country
Rough CountryOriginal price $449.95 - Original price $449.95Original price$449.95$449.95 - $449.95Current price $449.95| /Get a grip with Rough Country's Traction Bar Kit for 11-18 GM 2500 models. These heavy-duty Traction Bars help prevent wheel hop and axle wrap by a...
View full detailsOriginal price $449.95 - Original price $449.95Original price$449.95$449.95 - $449.95Current price $449.95| / -
HD Tie Rod Sleeves 11-16 Silverado/Sierra 2500HD/3500HD Rough Country
Rough CountryOriginal price $49.95 - Original price $49.95Original price$49.95$49.95 - $49.95Current price $49.95| /One area seriously lacking on most GM trucks is the steering link. With an outside diameter of Only1/2in, one wrong turn can easily bend the tie ro...
View full detailsOriginal price $49.95 - Original price $49.95Original price$49.95$49.95 - $49.95Current price $49.95| / -
HD Forged Tie Rod End | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $239.95 - Original price $239.95Original price$239.95$239.95 - $239.95Current price $239.95| /Don't settle for weak tie rods! You want your steering and suspension to be as strong as the truck you love. That's why you need Rough Country's HD...
View full detailsOriginal price $239.95 - Original price $239.95Original price$239.95$239.95 - $239.95Current price $239.95| / -
Steering Stabilizer Silverado/Sierra 2500HD/3500HD Rough Country
Rough CountryOriginal price $49.95 - Original price $49.95Original price$49.95$49.95 - $49.95Current price $49.95| /Steering stabilizers are designed to restrain bump steer and front end vibration, giving added life to tires, ball joints, and other steering compo...
View full detailsOriginal price $49.95 - Original price $49.95Original price$49.95$49.95 - $49.95Current price $49.95| / -
M1 Front Shocks | 2.5-3" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged M1 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| / -
M1 Front Shocks | 0-2" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged M1 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| / -
M1 Monotube Front Shocks | 3.5-4.5" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged M1 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $179.95 - Original price $179.95Original price$179.95$179.95 - $179.95Current price $179.95| / -
V2 Front Shocks | 5-8" | OEM Mount | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| / -
V2 Front Shocks | 3.5-4.5" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| / -
V2 Rear Shocks | 5-7" | Chevy/GMC 2500HD/3500HD (01-26)
Rough CountryOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| /Whether you're tackling tough terrain or smooth city streets, Rough Country's Nitrogen-charged V2 Monotube Shock Absorber leads the way, delivering...
View full detailsOriginal price $259.95 - Original price $259.95Original price$259.95$259.95 - $259.95Current price $259.95| / -
Vertex 2.5 Reservoir Rear Shocks | 3.5-7.5" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $899.95 - Original price $899.95Original price$899.95$899.95 - $899.95Current price $899.95| /Behold: The pinnacle of off-road performance and smooth ride quality in an affordable package has arrived with Rough Country's 2.5 Vertex 8-Stage A...
View full detailsOriginal price $899.95 - Original price $899.95Original price$899.95$899.95 - $899.95Current price $899.95| / -
Front Adjustable Vertex Shocks 11-19 Silverado/Sierra 2500/3500 for 3-4.5 Inch Lifts Rough Country
Rough CountryOriginal price $899.95 - Original price $899.95Original price$899.95$899.95 - $899.95Current price $899.95| /Behold: The pinnacle of off-road performance and smooth ride quality in an affordable package has arrived with Rough Country's 2.5 Vertex 8-Stage A...
View full detailsOriginal price $899.95 - Original price $899.95Original price$899.95$899.95 - $899.95Current price $899.95| / -
N3 Front Shocks | 0-3" | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged s...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| / -
Silverado/Sierra 2500/3500 HD 11-19 N3 Front Shocks Pair 3.5-4.5 Inch Rough Country
Rough CountryOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged s...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| / -
N3 Front Shocks | 5-8" | OEM Mount | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged s...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| / -
N3 Front Shocks | 5-8" | NTD Lifts Only | Chevy/GMC 2500HD/3500HD (11-26)
Rough CountryOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /Improve your on and off-road ride quality with Rough Country's premium N3 shocks! These 10-stage variable valving, high-pressure Nitrogen charged s...
View full detailsOriginal price $119.95 - Original price $119.95Original price$119.95$119.95 - $119.95Current price $119.95| /
The LML Duramax powered 2011 to 2016 Chevy Silverado HD and GMC Sierra HD trucks. It brought piezo injectors, the Bosch CP4.2 pump, a 9th injector for DEF and a much stronger chassis.
Shop LML Duramax Parts by Category
- Engine Parts
- Fuel System
- Fuel Injectors
- Intakes and Cooling
- Turbos and Exhaust
- Tuning
- Transmissions
- Suspension and Driveline
- Fluids
- Performance Packages
Not sure what fits? Send us your VIN or call 865.640.2097 and we will match the right part.
LML Duramax FAQ
What is the 9th injector on the LML?
It doses fuel during the DPF regeneration process, separate from the 8 main cylinder injectors.
Is the LML CP4.2 pump a concern like the Ford CP4?
It can fail similarly and contaminate the fuel system. Many owners add filtration or a lift pump for extra protection.