2003 GMC Sierra 2500 Engine Parts

366 products fit your

2003 GMC Sierra 2500

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2003 GMC Sierra 2500

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SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

Speedway Motors |

#91089662

SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

(19)

Material Thickness:

.100"

Material Type:

Steel

Finish:

Bare

as low as

$273.99

/each

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

Speedway Motors |

#930FO460

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

(29)

Header Tube Type:

Roadster

Exhaust Port Shape:

Oval

Flange Style:

Standard

$263.99

/each

-5%

Dakota Digital |

#365130070

Dakota Digital 130070 Oil Pressure Adapter

(2)

Material Type:

Brass

Thread Pitch:

1/8" NPT

Finish:

Natural

$23.75

/each

$25.00

Speedway Motors |

#91012807

LS1 Fuel Filter/Fuel Regulator Only

(12)

Regulator Style:

Return

Material Type:

Aluminum

$35.99

/each

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

Flowtech Exhaust |

#42511576FLT

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

(6)

Header Tube Type:

Shorty

Exhaust Port Shape:

Round

Flange Style:

Standard

$164.95

/each

Gen III/IV LS Engine ID Guide

Looking to swap the venerable LS engine into your hot rod, muscle car, or classic truck? Take a look at our detailed identification guide for Gen III/IV LS engines before you hit the salvage yard or swap meet!

NASCAR Engines Through the Years

In honor of NASCAR's 75th anniversary, we're taking a look at a few remarkable engines that have powered our favorite racers to victory through the years.

Engine Cylinder Numbers

55 Chevy Engine Build

Derek kicks off his 55 Chevy rebuild with a fresh small block.

Replacing GM Rear End Spherical Bushings

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

Centering a 525 Steering Gear

Steve takes us along as he centers the 525 manual steering gear he is using for his Laguna.

LS Swap Guide: GM 3 Speed / 4 Speed Parts List

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

Byron's 1975 Chevy Vega

It's not every day that you see a wild, IMSA inspired, 550 horsepower Vega. Byron Burnham went way outside the box with this one, and we love it.

Grooving A Tire

Grooving tires increases traction or grip. Find out more about the do's and don'ts when it comes to grooving.

PennGrade |

#633711901

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 1

(1)

Oil Weight:

20W50

Oil Type:

Synthetic Blend

ZDDP Enhanced:

Yes

$39.99

/each

Portable 1500 lbs. Steel Portable Engine Stand

Speedway Motors |

#91081002

Portable 1500 lbs. Steel Portable Engine Stand

(17)

Material Type:

Steel

Finish:

Powder Coated

Color:

Red

$175.99

/each

Holley |

#9109636

Holley 12-804 Adjustable Fuel Pressure Regulator w/0-15 PSI Gauge

(4)

Regulator Style:

Return

Material Type:

Aluminum

$132.80

/kit

FiTech |

#52139002

FiTech 39002 Go EFI 2-Barrel 400 HP Fuel Injection System

Injection Style:

Throttle Body

Max Horsepower Rating:

400

ECM Included:

Yes

$915.00

/each

Full Finned Mini Hillborn Style Aluminum Air Scoop, Polished

Speedway Motors |

#91603186

Full Finned Mini Hillborn Style Aluminum Air Scoop, Polished

(4)

Overall Length:

14"

Overall Width:

9.625"

Overall Height:

$190.99

/each

-16%

Jet Performance |

#45520105

Jet Performance 201005 Rochester 2G Carburetor Rebuild Kit

Sold in Quantity:

Each

GTIN Code:

064330042543

$54.99

/each

$65.67

SoloSwap® Big Block Chevy Mock Up Engine Swap Dummy Block Kits

Speedway Motors |

#91089661

SoloSwap® Big Block Chevy Mock Up Engine Swap Dummy Block Kits

(11)

Material Type:

Steel

Sold in Quantity:

Each

as low as

$278.99

/each

Full Finned Mini Hillborn Style Aluminum Air Scoop, Black

Speedway Motors |

#91603187

Full Finned Mini Hillborn Style Aluminum Air Scoop, Black

(2)

Overall Length:

14"

Overall Width:

9.625"

Overall Height:

$142.99

/each

Holley |

#42712804

Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI

(41)

Regulator Style:

Return

Material Type:

Aluminum

$51.95

/each

Mobil Delvac 122485 1300 Super HD Diesel Oil 10W-30 4 Gal Case

Mobil 1 |

#324122485

Mobil Delvac 122485 1300 Super HD Diesel Oil 10W-30 4 Gal Case

(8)

Oil Weight:

10W30

Oil Type:

Synthetic Blend

ZDDP Enhanced:

$95.99

/box

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

Flowtech Exhaust |

#42512164FLT

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

(1)

Header Tube Type:

Turbo

Exhaust Port Shape:

Square

Flange Style:

Standard

$154.95

/pair

Speedway Motors |

#2896939B

Speedway Motors Black Mini Digital Ignition Control Box

Sold in Quantity:

Each

$218.99

/each

Speedway LS1 Header Kit, 1-7/8 Inch Tube

Speedway Motors |

#41869511

Speedway LS1 Header Kit, 1-7/8 Inch Tube

(3)

Header Tube Type:

Roadster

Exhaust Port Shape:

Round

Flange Style:

Standard

$297.99

/each

Maxima |

#22984916

Maxima 84916 Engine Cool-Aide Coolant Concentrate, 16 Oz

(3)

Sold in Quantity:

Each

$14.49

/each

PennGrade |

#63371190

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 4

(7)

Oil Weight:

20W50

Oil Type:

Synthetic Blend

ZDDP Enhanced:

Yes

$160.99

/box

Magnuson Superchargers |

#79807005

Magnuson Superchargers 31-99-07-005 Small Univ Cooling System

Sold in Quantity:

Kit

$1,495.00

/kit

-18%

Powermaster |

#2551544

Powermaster 1-544 4-gauge Alternator Charge Wire, 4 FT

Core Material:

Copper

Sold in Quantity:

Each

$43.99

/each

$53.75

Silicone Hump Hose Coupler, Black, 4-Ply Nylon Reinforced, Straight

Speedway Motors |

#91013021

Silicone Hump Hose Coupler, Black, 4-Ply Nylon Reinforced, Straight

Mounting Hardware Included:

Color:

Black

Hardware Included:

$22.99

/each

Spyder 14” Dirt Racing / Off-Road Air Filter

Spyder Filters |

#5921400

Spyder 14” Dirt Racing / Off-Road Air Filter

(4)

Air Filter Style:

Round

Overall Diameter:

14"

Sold in Quantity:

Each

$69.95

/each

SBC/BBC Chevy V8 Engine Weld-In Motor Mount Kit, Stainless

Speedway Motors |

#91018042

SBC/BBC Chevy V8 Engine Weld-In Motor Mount Kit, Stainless

(34)

Attachment Style:

Weld-on/Bolt-on

Mount Material:

Stainless Steel

$193.99

/pair

Mobil 1 |

#3241224581

Mobil 1 122458-1 Delvac Extreme FE Motor Oil, 10W-30, 1 Gallon

(3)

Oil Weight:

10W30

Oil Type:

Synthetic Blend

ZDDP Enhanced:

$37.99

/each

Holley |

#42512886

Holley 12-886 Die Cast EFI 60 PSI By Pass Fuel Pressure Regulator

(3)

Regulator Style:

Return

Material Type:

Aluminum

$103.95

/each

Mobil 1 |

#324127097

Mobil 1 127097 Turbo Diesel Truck Oil 5W-40, 1 Gallon, Case of 3

Oil Weight:

5W40

Oil Type:

Synthetic

ZDDP Enhanced:

$133.99

/box

Mobil 1 |

#3241270971

Mobil 1 127097 Turbo Diesel Truck Oil 5W-40, 1 Gallon

Oil Weight:

5W40

Oil Type:

Synthetic

ZDDP Enhanced:

$47.99

/each

Driven Racing Oil |

#91003706

Driven Racing Oil 03706-12 BR40 10W40 Break In Motor Oil 12 Quart

(2)

Oil Weight:

10W40

Oil Type:

Break-In

ZDDP Enhanced:

Yes

$155.88

/box

Magnuson Superchargers |

#79807009

Magnuson Superchargers 31-99-07-009 LRG Universal Cooling System

Sold in Quantity:

Kit

$1,495.00

/kit

Magnuson Superchargers |

#79807007

Magnuson Superchargers 31-99-07-007 Medium Univ Cooling System

Sold in Quantity:

Kit

$1,495.00

/kit

-17%

Powermaster |

#25515412130

Powermaster 1-5412-130 4-gauge Alternator Charge Wire, 12 FT

Core Material:

Copper

Sold in Quantity:

Each

$74.99

/each

$91.25

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Flowtech Exhaust |

#42512167FLT

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Header Tube Type:

Turbo

Flange Style:

Standard

Primary Tube Diameter:

1-7/8"

$229.95

/pair

-18%

Powermaster |

#2551543130

Powermaster 1-543-130 4-gauge Alternator Charge Wire, 3 FT

(1)

Core Material:

Copper

Sold in Quantity:

Each

$40.99

/each

$50.00

Mobil 1 |

#324103008

Mobil 1 103008 Advanced Full Synthetic Motor Oil, 5W-20, 6 Quarts

Oil Weight:

5W20

Oil Type:

Synthetic

ZDDP Enhanced:

$61.99

/box

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2003 GMC Sierra 2500 Engine Parts

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

SoloSwap® Small Block Chevy Mock Up Engine Swap Dummy Block Kits

Speedway 429/460 BBF Big Block Ford Exhaust Header Kit

Dakota Digital 130070 Oil Pressure Adapter

LS1 Fuel Filter/Fuel Regulator Only

Flowtech 11576FLT Shorty Headers, GM LS Universal, Polished

Related Articles

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 1

Portable 1500 lbs. Steel Portable Engine Stand

Holley 12-804 Adjustable Fuel Pressure Regulator w/0-15 PSI Gauge

FiTech 39002 Go EFI 2-Barrel 400 HP Fuel Injection System

Full Finned Mini Hillborn Style Aluminum Air Scoop, Polished

Jet Performance 201005 Rochester 2G Carburetor Rebuild Kit

SoloSwap® Big Block Chevy Mock Up Engine Swap Dummy Block Kits

Full Finned Mini Hillborn Style Aluminum Air Scoop, Black

Holley 12-804 Adjustable Fuel Pressure Regulator, 1-4 PSI

Mobil Delvac 122485 1300 Super HD Diesel Oil 10W-30 4 Gal Case

Flowtech 12164FLT Small Block Ford Turbo Headers, Natural 304

Speedway Motors Black Mini Digital Ignition Control Box

Speedway LS1 Header Kit, 1-7/8 Inch Tube

Maxima 84916 Engine Cool-Aide Coolant Concentrate, 16 Oz

PennGrade Motor Oil 71190 Motor Oil, 20W50, Semi-Syn, 5 qt Qty 4

Magnuson Superchargers 31-99-07-005 Small Univ Cooling System

Powermaster 1-544 4-gauge Alternator Charge Wire, 4 FT

Silicone Hump Hose Coupler, Black, 4-Ply Nylon Reinforced, Straight

Spyder 14” Dirt Racing / Off-Road Air Filter

SBC/BBC Chevy V8 Engine Weld-In Motor Mount Kit, Stainless

Mobil 1 122458-1 Delvac Extreme FE Motor Oil, 10W-30, 1 Gallon

Holley 12-886 Die Cast EFI 60 PSI By Pass Fuel Pressure Regulator

Mobil 1 127097 Turbo Diesel Truck Oil 5W-40, 1 Gallon, Case of 3

Mobil 1 127097 Turbo Diesel Truck Oil 5W-40, 1 Gallon

Driven Racing Oil 03706-12 BR40 10W40 Break In Motor Oil 12 Quart

Magnuson Superchargers 31-99-07-009 LRG Universal Cooling System

Magnuson Superchargers 31-99-07-007 Medium Univ Cooling System

Powermaster 1-5412-130 4-gauge Alternator Charge Wire, 12 FT

Flowtech 12167FLT Small Block Ford Turbo Headers, Natural 304

Powermaster 1-543-130 4-gauge Alternator Charge Wire, 3 FT

Mobil 1 103008 Advanced Full Synthetic Motor Oil, 5W-20, 6 Quarts