KT Performance » 2003, 2500, Diesel

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  • (X) Year: 2003
  • (X) Model: 2500
  • (X) Engine: Diesel

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Items 1-60 of 940
Description: S&S Motorsports Diesel Fuel Injector, 45% over stock injectors with stock nozzles. ****You will need to order 8 to do a whole engine****
Item #: LB7-45SAC
Condition: New
Free Ground Shipping
Price: $390.00


Description: S&S Motorsports Diesel Fuel Injector, 65% over stock injectors with stock nozzles. ****You will need to order 8 to do a whole engine****
Item #: LB7-65SAC
Condition: New
Free Ground Shipping
Price: $429.00


Description: S&S Motorsports Diesel Fuel Injector, 100% over stock injectors. ****You will need to order 8 to do a whole engine****
Item #: LB7-100SAC
Condition: New
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Price: $455.00


Description: 1 ea ½? Return Hose Assembly (118-01E1-0) 1 ea ½? Feed Hose Assembly (118-01E3-0) 1 ea 5/8? Suction Hose Assembly (118-01E2-0) 1 ea Pump Power Harness 1 ea Wiring Harness
Item #: 11804
Condition: New
Price: $289.05

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Description: The Aeromotive diesel lift pump was developed to solve some key issues in the diesel lift pump market, most notably the ¼ tank issue, the pressure control issue, and motor shaft seal failures....More Details »
Item #: 11801
Condition: New
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Price: $2,056.29

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Description: With two layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, “oil-free” conical performance filter provides maximum convenience and easy...More Details »
Item #: 21-90028
Condition: New
Price: $110.81
Sale: $93.00
Save: 16%
Save: $17.81

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Description: Bringing you the next generation of intakes, the Momentum HD sealed air intake system is designed using the most up-to-date engineering tools and techniques to provide you with the perfect blend of...More Details »
Item #: 50-74001
Condition: New
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Price: $543.38
Sale: $416.00
Save: 23%
Save: $127.38

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Description: This air intake system produces 12 max horsepower, 28lbs. x ft. torque and out-flowed the factory intake by 42%. Includes a durable 16 gauge, powder-coated heat shield; this air intake system...More Details »
Item #: 54-10782
Condition: New
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Price: $490.88
Sale: $379.00
Save: 23%
Save: $111.88

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Description: This air intake system produces 12 max horsepower, 28lbs. x ft. torque and out-flowed the factory intake by 33%. Includes a durable 16 gauge, powder-coated heat shield; this air intake system...More Details »
Item #: 51-10782
Condition: New
Please Call for Availability
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Description: This air intake system produces 18 max horsepower, 24lbs. x ft. torque and out-flowed the factory intake by 108%. Includes a durable 16 gauge, powder-coated heat shield; this air intake system...More Details »
Item #: 54-10412
Condition: New
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Price: $466.13
Sale: $346.00
Save: 26%
Save: $120.13

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Description: This air intake system produces 18 max horsepower, 24lbs. x ft. torque and out-flowed the factory intake by 108%. Includes a durable 16 gauge, powder-coated heat shield; this air intake system...More Details »
Item #: 51-10412
Condition: New
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Price: $466.13
Sale: $346.00
Save: 26%
Save: $120.13

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Description: •Outflows the factory exhaust manifolds by 6%, improving performance and throttle response •Compatible with factory up-pipes which allows for easy installation. •Eliminates the flow...More Details »
Item #: 46-40024
Condition: New
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Price: $799.25
Sale: $675.00
Save: 16%
Save: $124.25

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Description: Bladerunner Intercoolers represent the next generation of intercoolers. The Bladerunner intercoolers utilize a 3" bar and plate design that outperforms OE style tube and fin core designs. The end...More Details »
Item #: 46-20011
Condition: New
Please Call for Availability
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Description: Eliminate the costly exhaust manifold cracks prevalent in the factory exhaust manifold. The aFe Bladerunner exhaust manifold for the popular 5.9L Dodge Ram Cummins sets the new standard....More Details »
Item #: 46-40011
Condition: New
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Price: $922.50

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Description: aFe Power's front differential cover brings performance engineering to the protection of your truck's front-end. This differential cover has a 3-1/2 quart lube capacity (factory cover holds 2-1/2...More Details »
Item #: 46-70042
Condition: New
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Price: $420.75
Sale: $336.60
Save: 20%
Save: $84.15

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Description: Large Three Layer Performance Air Filter: This 360-degree radial flow air filter features a 5" flange and our pre-oiled Pro 5R media with five layers of progressively finer cotton gauze media...More Details »
Item #: 53-10032R
Condition: New
Price: $446.25
Sale: $357.00
Save: 20%
Save: $89.25

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Description: Large Three Layer Performance Air Filter: This 360-degree radial flow air filter features a 5" flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum...More Details »
Item #: 53-10032D
Condition: New
Price: $446.25
Sale: $357.00
Save: 20%
Save: $89.25

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Description: aFe Power's new rear-end differential cover brings performance engineering to the protection of your trucks rear-end. This differential cover has a 5 quart lube capacity (factory cover holds 4...More Details »
Item #: 46-70011
Condition: New
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Price: $368.75
Sale: $325.00
Save: 12%
Save: $43.75

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Description: aFe Power's deep transmission pan brings performance engineering to the protection of your truck's transmission. This transmission pan has additional capacity for 3 to 4 more quarts over stock at...More Details »
Item #: 46-70052
Condition: New
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Price: $490.88
Sale: $392.70
Save: 20%
Save: $98.18

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Description: All necessary mounting brackets All of the hardware needed for installation Internal jounce bumper prevents damage when driving with an empty air bag 2 air springs Air lines Schrader valve Fully-illustrated installation guide
Item #: 88275
Condition: New
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Price: $653.98
Sale: $583.91
Save: 11%
Save: $70.07

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Description: The Ultimate Air Spring A New Air Spring Kit Exclusively From Air Lift. LoadLifter 5000 Ultimate adjustable air spring kits feature all of the benefits of our heaviest rated air spring with the...More Details »
Item #: 88295
Condition: New
Free Ground Shipping
Price: $611.33
Sale: $499.99
Save: 18%
Save: $111.34

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Description: This is the AirDog I FP-100-4G fuel system for the 1998.5-2004 Dodge Ram VP44 and early CP3 Cummins with the in-tank fuel pump. This diesel lift pump mounts to the frame rail using the supplied...More Details »
Item #: A4SPBD153
Condition: New
Free Ground Shipping
Price: $740.00
Sale: $729.00
Save: 1%
Save: $11.00

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Description: The AirDog® Fuel Preporator®, with the capability to provide fuel at flows and pressures beyond the maximum requirements of the engine, receives fuel under vacuum from the fuel tank containing...More Details »
Item #: A4SPBC085
Condition: New
Free Ground Shipping
Price: $675.00
Sale: $645.00
Save: 4%
Save: $30.00

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Description: The AirDog® Fuel Preporator®, with the capability to provide fuel at flows and pressures beyond the maximum requirements of the engine, receives fuel under vacuum from the fuel tank containing...More Details »
Item #: A4SPBC088
Condition: New
Free Ground Shipping
Price: $725.00
Sale: $670.00
Save: 8%
Save: $55.00

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Description: The AirDog® Fuel Preporator®, with the capability to provide fuel at flows and pressures beyond the maximum requirements of the engine, receives fuel under vacuum from the fuel tank containing...More Details »
Item #: A4SPBD001
Condition: New
Free Ground Shipping
Price: $675.00
Sale: $645.00
Save: 4%
Save: $30.00

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Description: The AirDog® Fuel Preporator®, with the capability to provide fuel at flows and pressures beyond the maximum requirements of the engine, receives fuel under vacuum from the fuel tank containing...More Details »
Item #: A4SPBD104
Condition: New
Free Ground Shipping
Price: $775.00
Sale: $759.00
Save: 2%
Save: $16.00

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Description: AirDog® II is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate...More Details »
Item #: A6SPBD253
Condition: New
Free Ground Shipping
Price: $830.00
Sale: $755.00
Save: 9%
Save: $75.00

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Description: AirDog® II is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate...More Details »
Item #: A6SPBD354
Condition: New
Free Ground Shipping
Price: $830.00
Sale: $755.00
Save: 9%
Save: $75.00

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Description: AirDog® II is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate...More Details »
Item #: A6SABD425
Condition: New
Free Ground Shipping
Price: $885.00
Sale: $799.00
Save: 10%
Save: $86.00

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Description: AirDog II-4G for Chevy/GMC 6.6L Duramax, DF-165 Adjustable Regulator, Quick Disconnect Fittings This is the AirDog II-5G DF-165-5G fuel system for the 2001-2010 Chevy/GMC Duramax 6.6L Diesel....More Details »
Item #: A7SABC509
Condition: New
Price: $1,043.99
Sale: $869.99
Save: 17%
Save: $174.00

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Description: AirDog® II is designed to operate at flows and pressures beyond the maximum requirements of the engine. It receives fuel under vacuum from the fuel tank containing entrained air/vapor, particulate...More Details »
Item #: A6SABC409
Condition: New
Not Available
Price: $885.00
Sale: $799.00
Save: 10%
Save: $86.00

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Description: Direct replacement APPS for the 1998.5-2004 trucks where the APPS is located below the intake manifold.
Item #: AP63458
Condition: New
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Price: $179.99
Sale: $153.99
Save: 14%
Save: $26.00

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Description: Stock Replacement CP3 Pump You can rest assured that when you purchase one of our high quality fuel injection parts, turbochargers, or other engine components that you are buying a top quality...More Details »
Item #: ADS-30-4001
Condition: New
Free Ground Shipping
Price: $737.28


Description: A premium grade 8740 alloy chromemoly steel is used to manufacture ARP High Performance connecting rod bolts. This material is heat-treated to provide a tensile strength in the 200,000 psi range....More Details »
Item #: 247-6303
Condition: New
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Price: $260.00
Sale: $229.95
Save: 12%
Save: $30.05

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Description: ARP-Bolts Flexplate bolt kit. Thread Size M12 x 1.25 Socket Size(s) 3/4 12pt UHL 0.700? 8 Pieces per kit. ARP is the preferred choice of shops and performance teams across the country.
Item #: 147-2901
Condition: New
Price: $70.00
Sale: $60.95
Save: 13%
Save: $9.05

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Description: If your building an extremely high horsepower engine you need to start with the strong foundation, ARP (Automotive Racing Products) is already known for their quality fasteners. The Custom Aged 625...More Details »
Item #: 230-4202
Condition: New
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Price: $2,200.00
Sale: $1,999.95
Save: 9%
Save: $200.05

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Description: If your building a high horsepower engine you need to start with the strong foundation, ARP (Automotive Racing Products) is known for their quality fasteners. These studs have strength up to 190,000psi.
Item #: 230-4201
Condition: New
Free Ground Shipping
Price: $840.00
Sale: $759.95
Save: 10%
Save: $80.05

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Description: If your building an extreme high horsepower engine you need to start with the strongest foundation possible, ARP (Automotive Racing Products) is known for their quality fasteners. The Custom Age...More Details »
Item #: 247-4204
Condition: New
Free Ground Shipping
Price: $1,650.00
Sale: $1,499.95
Save: 9%
Save: $150.05

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Description: If your building a high horsepower engine you need to start with the strong foundation, ARP (Automotive Racing Products) is known for their quality fasteners. Doesn't fit early 1998 12V.
Item #: 247-4202
Condition: New
Free Ground Shipping
Price: $600.00
Sale: $564.95
Save: 6%
Save: $35.05

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Description: If your building a high horsepower engine you need to start with the strong foundation, ARP (Automotive Racing Products) is known for their quality fasteners. Kit includes cross bolts.
Item #: 230-5401
Condition: New
Free Ground Shipping
Price: $330.00
Sale: $299.95
Save: 9%
Save: $30.05

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Description: If your building a high horsepower engine you need to start with the strong foundation, ARP (Automotive Racing Products) is known for their quality fasteners. This main stud kit will help keep that...More Details »
Item #: 247-5401
Condition: New
Free Ground Shipping
Price: $330.00
Sale: $299.95
Save: 9%
Save: $30.05

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Description: This is a billet aluminum accumulator piston that is designed to use double rubber O-ring seals in place of the leaky steel delivery rings that the factory cast version uses. This is the...More Details »
Item #: 3140092104
Condition: New
Price: $49.99
Sale: $47.37
Save: 5%
Save: $2.62
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Description: This billet steel input shaft is made to fix a weak link in your GM Duramax truck with Allison transmission.
Item #: 3049104248
Condition: New
Price: $951.99
Sale: $793.00
Save: 17%
Save: $158.99

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Description: The ATS Billet output shaft is part of the back bone of your transmission. It is the first hard part to bring power into the transmission and transmit that power to the wheels. With no dampening...More Details »
Item #: 3049204248
Condition: New
Price: $594.99
Sale: $495.00
Save: 17%
Save: $99.99

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Description: ATS manufactured Allison C4 clutch pack for Chevy/GMC 2001-2008
Item #: 3139944248
Condition: New
Please Call for Availability

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Description: 2001-2010 Allison C5 clutch pack
Item #: 3088054248
Condition: New
Price: $365.99
Sale: $304.50
Save: 17%
Save: $61.49

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Description: ATS Allison Co-Pilot Transmission Controller for Chevy/GMC 6.6L Duramax, LB7/LLY, 5-Speed The Co-Pilot for the 2001-05 Allison 1000 makes it possible to transfer increased power levels over...More Details »
Item #: 6019004248
Condition: New
Please Call for Availability

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Description: ATS Extra Deep Transmission Pan - Allison LCT1000/2000 Automatic Deep Pan Features Include: Deep filter and gasket necessary for the install Holds an extra 5 quarts of fluid over stock...More Details »
Item #: 3019004248
Condition: New
Price: $447.99
Sale: $372.75
Save: 17%
Save: $75.24

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Description: Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter is built to handle daily driving and towing duties while delivering...More Details »
Item #: 3029514248
Condition: New
Price: $1,766.99
Sale: $1,471.75
Save: 17%
Save: $295.24


Description: Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter is built to handle daily driving and towing duties while delivering...More Details »
Item #: 3029524248
Condition: New
Price: $1,766.99
Sale: $1,471.75
Save: 17%
Save: $295.24


Description: Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter is built to handle daily driving and towing duties while delivering...More Details »
Item #: 3029534248
Condition: New
Price: $1,766.99
Sale: $1,471.75
Save: 17%
Save: $295.24


Description: ATS Allison Five Star Torque Converter for Chevy/GMC 6.6L Duramax 2100-2500 RPM Stall Speed with 300mm Housing Allison LCT1000 Five Star Viskus Clutch Drive Torque Converter HIGH STALL for the...More Details »
Item #: 3029554248
Condition: New
Price: $2,053.99
Sale: $1,710.99
Save: 17%
Save: $343.00


Description: Standard in all transmission packages, and available individually, is the ATS Five Star Torque Converter. This torque converter is built to handle daily driving and towing duties while delivering...More Details »
Item #: 3029454248
Condition: New
Price: $1,647.99
Sale: $1,372.69
Save: 17%
Save: $275.30


Description: Cooler line fitting, Late Allison 2003-Present.
Item #: 3140054272
Condition: New
Price: $36.99
Sale: $35.00
Save: 5%
Save: $1.99
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Description: This Billet Output Shaft fits GM 6.6L Duramax 4x4 Trucks with Duramax Engine and Allison LCT-1000 Transmissions.
Item #: 3049304248
Condition: New
Price: $900.99
Sale: $750.00
Save: 17%
Save: $150.99

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Description: ATS Allison Performance Valve Body for Chevy/GMC 2003-2005 6.6L Duramax LCT1000 5-Speed.
Item #: 3039004272
Condition: New
Price: $1,029.99
Sale: $857.68
Save: 17%
Save: $172.31


Description: ATS Allison Pressure Regulator Valve for Chevy/GMC 2001-2004 6.6L Duramax.
Item #: 3030104248
Condition: New
Price: $121.99
Sale: $101.49
Save: 17%
Save: $20.50

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Description: Serving truck enthusiasts for nearly two decades, ATS invents, designs, manufactures, and sells the world's most innovative diesel truck performance products-over 600 products for one-stop...More Details »
Item #: 3039044248
Condition: New
Price: $185.99
Sale: $154.50
Save: 17%
Save: $31.49

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Description: ATS TripleLok Torque Converter for Chevy/GMC 6.6L Duramax
Item #: 3029304248
Condition: New
Price: $1,522.99
Sale: $1,268.75
Save: 17%
Save: $254.24


Description: ATS is the original inventor of the arc shaped intake manifold, to which set the standard across the industry. The ArcFlow dynamically directs air into the intake manifold with a gradual expansion...More Details »
Item #: 2019012272
Condition: New
Price: $380.99
Sale: $317.13
Save: 17%
Save: $63.86

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Items 1-60 of 940

View Universal items for: 2003, 2500, Diesel