High Performance Diesel and Gas Parts: For Cars, Trucks, UTVs, and Class 8 Vehicles

Welcome to KLM Performance Inc. ! Please feel free to call or email us if you have any questions or cannot find what you are looking for. 203-210-7200 or Contact form

When you buy from KLM, you'll receive excellent customer service that aligns with the exacting standards of the brands we offer: FASS, AirDog, Crown Performance, Fluidampr, Vibratech, ARP, Borgeson Steering, Flex-A-lite, Fleetguard, Mopar, Walker Evans Racing, and more.

Our vast selection of aftermarket accessories includes:

Featured products

Fass 1998.5-2004.5 Cummins Titanium Series Fuel Pump 150GPH

List Price: $624.00 Your Price: $611.80 You Save: $12.20 (2 %)

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Ford 6.0 STC HPOP Fitting Update Kit 4C3Z-9B246-F

List Price: $58.25 Your Price: $52.85 You Save: $5.40 (9 %)

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ARP 247-4204 Custom Age 625 Plus Cummins Diesel Head Stud Kit

List Price: $1,466.90 Your Price: $1,232.15 You Save: $234.75 (16 %)

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Walker Evans Racing Kawasaki Teryx Rear Piggy Back Coil Over Shock Kit

List Price: $1,999.99 Your Price: $887.00 You Save: $1,112.99 (56 %)

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Walker Evans Racing Polaris RZR-S Piggy Back Coil Over Shock Kit

List Price: $2,099.95 Your Price: $1,775.00 You Save: $324.95 (15 %)

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Mag-Hytec E4OD/4R100 Transmission Pan

List Price: $345.00 Your Price: $327.75 You Save: $17.25 (5 %)

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Ford 6.0L Powerstroke Updated Standpipe Tube and Dummy Plug Kit

List Price: $262.28 Your Price: $159.98 You Save: $102.30 (39 %)

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Rigid Industries 10611 6" E-Series Flood LED Light Bar

List Price: $299.99 Your Price: $254.99 You Save: $45.00 (15 %)

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Rigid Industries 11021 10" E-Series Spot LED Light Bar RDL10P

List Price: $399.99 Your Price: $339.99 You Save: $60.00 (15 %)

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Rigid Industries 13031 30" Spot/Flood Combo LED Light Bar

List Price: $999.99 Your Price: $949.99 You Save: $50.00 (5 %)

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Rigid Industries 12011 20" E-Series Flood LED Light Bar RGDL20E

List Price: $699.99 Your Price: $664.99 You Save: $35.00 (5 %)

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Rigid Industries 13011 30" E-Series Flood LED Light Bar RGDL30E

List Price: $999.99 Your Price: $949.99 You Save: $50.00 (5 %)

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Rigid Industries 15011 50" E-Series Flood LED Light Bar RGDL50E

List Price: $1,599.99 Your Price: $1,359.00 You Save: $240.99 (15 %)

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Walker Evans Racing Kawasaki Teryx Front Piggy Back Coil Over Shock Kit

List Price: $1,120.00 Your Price: $887.98 You Save: $232.02 (21 %)

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Walker Evans Racing Polaris RZR Front Piggy Back Coil Over Shock Kit

List Price: $1,120.00 Your Price: $887.97 You Save: $232.03 (21 %)

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Walker Evans Racing Polaris RZR Rear Piggy Back Coil Over Kit

List Price: $1,200.00 Your Price: $887.99 You Save: $312.01 (26 %)

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Rigid Industries 11096 E Series Light Cover White

List Price: $18.00 Your Price: $16.98 You Save: $1.02 (6 %)

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Rigid Industries 11093 E-Series Amber Cover

List Price: $18.00 Your Price: $16.98 You Save: $1.02 (6 %)

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Rigid Industries 20196 Dually Series Light Cover White

List Price: $14.00 Your Price: $9.98 You Save: $4.02 (29 %)

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TJM XGS 80 Series Land Cruiser 2 (50mm) Lift Coil Springs

List Price: $495.00 Your Price: $398.00 You Save: $97.00 (20 %)

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TJM XGS 80 Series Land Cruiser 2 (50mm) Front Lift Coil Springs

List Price: $495.00 Your Price: $225.00 You Save: $270.00 (55 %)

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Borgeson 000943 Dodge Steering Shaft

List Price: $248.00 Your Price: $215.59 You Save: $32.41 (13 %)

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Colt Cams The Big Stick High Performance Cummins Diesel Camshaft

List Price: $678.00 Your Price: $644.00 You Save: $34.00 (5 %)

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