SKU: 79461003305

50 State LML Duramax CP3 Conversions 2011-2016 W/pump Carb Exempt No Tuning Req D Each S&S Diesel

Sale price$1170.00 Regular price$1300.00
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Description

50 State LML Duramax CP3 Conversions 2011-2016 W/pump Carb Exempt No Tuning Req D Each S&S DieselS&S Diesel Motorsport, the world leader in common rail diesel injection has developed a solution for CP4. 2 high pressure pump failures that have plagued the LML Duramax engine. The S&S solution is to remove the problem before it becomes a problem, by replacing the CP4. 2 with a tried and true, bulletproof CP3 high pressure fuel pump. CP4 high pressure pumps are the Achilles heel of the LML Duramax engine because of high failure rates, and commonly

S&S Diesel Motorsport, the world leader in common-rail diesel injection has developed a solution for CP4.2 high-pressure pump failures that have plagued the LML Duramax engine.

The S&S solution is to remove the problem before it becomes a problem, by replacing the CP4.2 with a tried and true, bulletproof CP3 high pressure fuel pump.

CP4 high pressure pumps are the Achilles heel of the LML Duramax engine because of high failure rates, and commonly taking out the entire, very costly, high-pressure system with it (injectors, rails, lines).

S&S Diesel Motorsport offers the first CARB-compliant (EO D-756-4) 50 State CP3 conversion available for the LML. This includes all hardware necessary to replace the troublesome CP4 with a bulletproof CP3, requires no tuning changes, and still maintains factory emissions control equipment for $2,600 MAP.

S&S also offers two other versions of LML CP3 conversion kits for competition applications which don’t require after-treatment. One tuning required version for $1,780.00 MAP, and one drop-in no tuning required for $2,175.00 MAP.
Options

  • 50 State LML CP3 conversion kit w/pump - CARB EO #D-756-4 - No Tuning Required
  • LML CP3 conversion kit w/pump - No Tuning Required
  • LML CP3 conversion kit w/pump - Tuning Required
  • LML CP3 conversion kit w/o pump
  • LML CP3 H/O Pump Option - Add desired CP3 (SS, 10, 12, 14mm) price to LML conversion kit without pump price

Details:

  • Liter: 6.6
  • Cylinders: 8
  • BlockType: V
  • Fuel Type: Diesel
  • Engine Destination: LML
  • CC: 6599
  • CID: 403
  • Engine Bore Inches: 4.06
  • Engine Bore Metric: 103
  • Engine Stroke Inches: 3.9
  • Engine Stroke Metric: 99
  • Engine Years: 2011-2016
  • Condition: New
  • Sold As: Set
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79461003305

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Mr Friedman
Birmingham, US
★★★★★ 5
Beautiful and comfortable
Size: 12 Wide, Color: Black
Beautiful and comfortable
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Reviewed in the United States on May 21, 2026
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DeeDee
Louisville, US
★★★★★ 5
Really nice
Size: 10.5 Wide, Color: Black
My husband loves these shoes. He has a flat food and said they still fit nice.
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Reviewed in the United States on June 1, 2026
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Brian Diez
Boise, US
★★★★★ 4
Good Quality
Size: 11, Color: White
Nice looking shoe. Slides on easy. My only feedback would be I wish the toe box was a bit wider and the heel a bit higher. It's a good shoe overall. I would buy again.
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Reviewed in the United States on April 10, 2025
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carl mazaleski
West Palm Beach, US
★★★★★ 5
Fit
Size: 11.5 Wide, Color: Cognac
Comfortable and affordable
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Reviewed in the United States on May 14, 2026
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The Product Connoisseur
Charlottesville, US
★★★★★ 3
Classy pair that look great but don’t last
Size: 12, Color: Black, Size: 12, Color: Black
Great shoe. Slip on is easy and the shoes are comfortable and classy. Ten months later and the bottom has holes and didn’t last.
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Reviewed in the United States on March 30, 2025

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