2003 Ford Mustang Engine Parts

2,769 products fit your

2003 Ford Mustang

Add Engine

Show Direct Fit Parts

2,769 products

Sort By:

Clear All

Fitment

2003 Ford Mustang

Department

Street

Application

Modern Muscle

Products

-7%

Earls |

#425AT704611ERL

Earls AT704611ERL Super Stock 45 Degree -10 AN Female to 5/8 Inch Barb

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$46.56

/each

$50.37

Black 45 Degree Socketless Push-On Hose End, -8 AN

Speedway Motors |

#62020101

Black 45 Degree Socketless Push-On Hose End, -8 AN

(7)

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$23.99

/each

Black 90 Degree -8 AN Flare to 3/8 Inch NPT Pipe Adapter Fitting

Speedway Motors |

#61760861

Black 90 Degree -8 AN Flare to 3/8 Inch NPT Pipe Adapter Fitting

(1)

Fitting End A:

-8 AN Male

Fitting End B:

3/8" NPT Male

Angle:

90 degree

$18.99

/each

-26%

Vibrant |

#32100021

Vibrant High Flow PTFE Hose End Fitting

(1)

Material Type:

Aluminum

Finish:

Anodized

Color:

Black

$16.50

/each

$22.50

Vintage Air |

#72515136VCB

Vintage Air 15136-VCB Big Block Low-mount Comp Bracket Short Pump

Fits A/C Compressor Style:

Sanden SD

Water Pump Style:

Short

Mounting Side:

Passenger Side

$144.99

/each

Engines That Fit My Car: Dimensions for Common Engine Swaps

Knowing popular engine dimensions and weights are critical to a successful engine swap in your project vehicle

Best Engine Swaps of All Time | HEMI VS LS Engine VS 2JZ

What is the best engine to swap? Discover the top engine swap options, including LS, Hemi, and Cummins, and find the best engine swap for your build.

What is a Stroker Engine | Stroker Motor Chart for Chevy, Ford, and Mopar

Wondering what a stroker motor is and how to build one? Speedway Motors has the answers with this stroker motor build guide.

Ford 302 Crate Engine Tech Talk

Darrian recently purchased a 302 Ford BluePrint Crate Engine for his 1962 Comet. Learn more as he walks you through what is included in the kit, it's out-of-the-box assembly and the performance metrics of the engine.

1946 Ford Sedan Delivery Engine Detail

Speedway Motors Product Manager Jeff K. talks about how to really make your engine bay stand out from the crowd with just a little patience, and some Speedway products.

A/C 101 on a '65 Mustang

Speedway Motors employee Alanna C. walks through the how-to of installing the Vintage Air A/C in her 1965 Ford Mustang.

Ford 302 Build Combinations: Recipes for 300-500+ HP

Ford’s 302ci small block V8 is one of Ford’s best engine designs and is capable of great power with the right parts

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

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.

Historic Indy Engines

To celebrate the upcoming 106th running of the Indianaplis 500, here's a look back at a few of the engines that have competed at the Brickyard over the years.

BluePrint Engines |

#227BPP12110359

BluePrint Engines BPP12110359 LS Block, 4.125, Billet Cap, 4-Bolt

Main Journal Style:

LS mains

Deck Height:

9.240"

Material Type:

Cast Iron

$4,799.99

/each

FiTech |

#52170006

FiTech 70006 Ultimate LS, Tall LS1/LS2/LS6 500HP Kit

Injection Style:

Multi-port

Injector Size:

36 lbs./hr.

Max Horsepower Rating:

500

$1,896.00

/kit

Speedway Motors |

#91038000

Speedway Motors Ratcheting Harmonic Balancer Puller

(2)

Sold in Quantity:

Each

$106.99

/each

Female Aluminum Swivel Coupler Fitting, -6 AN

Speedway Motors |

#6174000

Female Aluminum Swivel Coupler Fitting, -6 AN

(10)

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Female

Angle:

Straight

$15.99

/each

-20%

Vibrant |

#32100019

Vibrant HD Pinless Charge Tube Clamp, Black

Overall Length:

Mounting Hardware Included:

Yes

Color:

Black

as low as

$124.99

/each

$156.99

Tanks |

#91603446

Tanks BH-516 Hose Barb Bulkhead Fitting, 5/16 Inch, Aluminum

Fitting End A:

5/16 in.

Fitting End B:

5/16 in.

Angle:

Straight

$13.00

/each

Pico |

#9105854

PICO 5854C Male GM Weatherpack Tin Plated Brass Terminals, 5pc

Sold in Quantity:

Bag

$3.99

/bag

FiTech |

#52179102

FiTech 79102 LS Kit W/ 70002 Plus Inline Fuel Pump And Coil Pack

Injection Style:

Multi-port

Injector Size:

36 lbs./hr.

Max Horsepower Rating:

500

$2,633.99

/kit

Goodridge |

#6179063

Goodridge SS902-12 Stat-O-Seal Sealing Washers, -8 AN

(1)

Fitting Size 1:

-8 AN

AN Size:

-8 AN

Inside Diameter:

0.75"

$16.99

/pair

-11%

Lisle |

#21219700

Lisle Corporation 19700 Air Valve Holder, 14mm / 18mm, 12 Inch

(4)

Thread Pitch:

M14 x 1.25

Hose Length:

12"

$18.49

/each

$20.99

Fragola |

#61729181

Fragola 209108-BL Push-on Hose End, -8AN to -6AN, 90 Deg, Black

(5)

Fitting Hose Size:

-6 AN

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Hose

$21.99

/each

-14%

Fragola |

#61721071

Fragola 200107-BL Series 8000 Push-Lite Hose End,-8AN to -6AN,STR

(3)

Fitting Hose Size:

-6 AN

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Hose

$9.99

/each

$11.74

-7%

Earls |

#425AT924104ERL

Earls AT924104ERL 45 Degree -4 AN Male to -4 AN Female Swivel

Fitting End A:

-4 AN Male

Fitting End B:

-4 AN Female

Angle:

45 degree

$34.82

/each

$37.67

$113 Off

Holley Sniper |

#425550510BXX

Holley Sniper 550-510-BXX 4-barrel Self-Tuning EFI Conversion Kit

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

650

$1,349.95

/kit

$1,462.95

-17%

90 Degree Flare Adaptor, AN12 to 1/2 Inch NPT

Speedway Motors |

#6176090

90 Degree Flare Adaptor, AN12 to 1/2 Inch NPT

(1)

Fitting End A:

-12 AN Male

Fitting End B:

1/2" NPT Male

Angle:

90 degree

$27.99

/each

$34.04

K&N 99-0635 Power Kleen Air Filter Cleaner, 1 Gallon

K&N |

#465990635

K&N 99-0635 Power Kleen Air Filter Cleaner, 1 Gallon

(3)

GTIN Code:

024844018885

Sold in Quantity:

Each

$39.99

/each

Driven Racing Oil |

#91026258

Driven Racing Oil 26258 Circle Track Synthetic Oil 20W50, 4 Gal

Oil Weight:

20W50

Oil Type:

Synthetic

Liquid Measurement:

4 gallons

$255.84

/box

#9105856

PICO 5856C GM Weatherpack Tin Plated Brass Terminals, 5pc

Sold in Quantity:

Bag

$3.99

/bag

-7%

Holley |

#425558103

Holley 558-103 LS Engine Main Harness 58x/4x HP & Dominator EFI

GTIN Code:

090127666739

$675.95

/each

$731.95

-62%

LG Billet USA |

#38330001

LG Billet USA AN Male Weld Bungs, 304 Stainless Steel, 37 Degree

Thread Type:

RH Male

Material Type:

304 Stainless Steel

Sold in Quantity:

Each

$5.28

/each

$14.00

$150 Off

Holley Sniper 2 EFI Returnless Kit, Without PDM, 3.5 In Handheld

Holley Sniper |

#42555053

Holley Sniper 2 EFI Returnless Kit, Without PDM, 3.5 In Handheld

Injection Style:

Throttle Body

Injector Size:

100 lb/hr @ 58.5 PSI

Max Horsepower Rating:

650

$2,099.95

/kit

$2,249.95

-9%

PerTronix |

#447828280HT

PerTronix 828280HT 8mm Spark Plug Wires, 180 Degree, Black

Conductor Style:

Spiral Core

Diameter:

$149.30

/kit

$164.23

Speedway Motors |

#91604049

LS Engine Swap Conversion Low Profile Oil Pan Kit, Zinc, 10 AN

(1)

Sump Style:

Wet Sump

Sump Location:

Rear

$489.99

/kit

-34%

Fragola |

#617220105

Fragola 220105 Straight Adapter Hose End Fitting, -8 AN to -6 AN

(2)

Fitting Hose Size:

-8 AN

Fitting End A:

-6 AN Female

Fitting End B:

-8 AN Hose

$10.99

/each

$16.89

BluePrint Engines |

#227BPP12110336

BluePrint Engines BPP12110336 SBF Block, 9.500 Deck x 4.000 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$4,399.99

/each

-24%

Vibrant |

#32100011

Vibrant Tight Radius 90 Deg Hose Fitting, Black, -6/-8/-10/-12AN

Angle:

90 degree

Material Type:

Aluminum

Finish:

Anodized

$24.79

/each

$32.79

LS Engine Harmonic Balancer Install and Crankshaft Holding Tool

Speedway Motors |

#91042511

LS Engine Harmonic Balancer Install and Crankshaft Holding Tool

Sold in Quantity:

Each

$51.99

/each

-34%

Fragola |

#6172201071

Fragola 2201071-BL Straight Hose End Adapter Fitting, -6 AN to -8 AN

(1)

Fitting Hose Size:

-6 AN

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Hose

$15.49

/each

$23.48

Walker Engineering 300853 Carbon Fiber Sprint Car Air Box Base

Walker Performance |

#94030853

Walker Engineering 300853 Carbon Fiber Sprint Car Air Box Base

Shape:

Rectangle

Housing Material:

Carbon Fiber

Housing Finish:

Natural

$270.99

/each

BluePrint Engines |

#227BPP12110338

BluePrint Engines BPP12110338 SBF Block, 9.500 Deck x 4.000 Bore

Main Journal Style:

Ford 351 Cleveland

Deck Height:

9.500"

Material Type:

Cast Iron

$3,599.00

/each

FiTech |

#52170082

FiTech 70082 LS 750HP Dual Quad EFI Cathedral Port, Trans Control

Injection Style:

Multi-port

Injector Size:

55 lbs./hr.

Max Horsepower Rating:

750

$2,679.00

/kit

Showing 1 - 1332 of 2,769 results

Shop Feedback:

Did you find what you are looking for?

2003 Ford Mustang Engine Parts

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

Earls AT704611ERL Super Stock 45 Degree -10 AN Female to 5/8 Inch Barb

Black 45 Degree Socketless Push-On Hose End, -8 AN

Black 90 Degree -8 AN Flare to 3/8 Inch NPT Pipe Adapter Fitting

Vibrant High Flow PTFE Hose End Fitting

Vintage Air 15136-VCB Big Block Low-mount Comp Bracket Short Pump

Related Articles

BluePrint Engines BPP12110359 LS Block, 4.125, Billet Cap, 4-Bolt

FiTech 70006 Ultimate LS, Tall LS1/LS2/LS6 500HP Kit

Speedway Motors Ratcheting Harmonic Balancer Puller

Female Aluminum Swivel Coupler Fitting, -6 AN

Vibrant HD Pinless Charge Tube Clamp, Black

Tanks BH-516 Hose Barb Bulkhead Fitting, 5/16 Inch, Aluminum

PICO 5854C Male GM Weatherpack Tin Plated Brass Terminals, 5pc

FiTech 79102 LS Kit W/ 70002 Plus Inline Fuel Pump And Coil Pack

Goodridge SS902-12 Stat-O-Seal Sealing Washers, -8 AN

Lisle Corporation 19700 Air Valve Holder, 14mm / 18mm, 12 Inch

Fragola 209108-BL Push-on Hose End, -8AN to -6AN, 90 Deg, Black

Fragola 200107-BL Series 8000 Push-Lite Hose End,-8AN to -6AN,STR

Earls AT924104ERL 45 Degree -4 AN Male to -4 AN Female Swivel

Holley Sniper 550-510-BXX 4-barrel Self-Tuning EFI Conversion Kit

90 Degree Flare Adaptor, AN12 to 1/2 Inch NPT

K&N 99-0635 Power Kleen Air Filter Cleaner, 1 Gallon

Driven Racing Oil 26258 Circle Track Synthetic Oil 20W50, 4 Gal

PICO 5856C GM Weatherpack Tin Plated Brass Terminals, 5pc

Holley 558-103 LS Engine Main Harness 58x/4x HP & Dominator EFI

LG Billet USA AN Male Weld Bungs, 304 Stainless Steel, 37 Degree

Holley Sniper 2 EFI Returnless Kit, Without PDM, 3.5 In Handheld

PerTronix 828280HT 8mm Spark Plug Wires, 180 Degree, Black

LS Engine Swap Conversion Low Profile Oil Pan Kit, Zinc, 10 AN

Fragola 220105 Straight Adapter Hose End Fitting, -8 AN to -6 AN

BluePrint Engines BPP12110336 SBF Block, 9.500 Deck x 4.000 Bore

Vibrant Tight Radius 90 Deg Hose Fitting, Black, -6/-8/-10/-12AN

LS Engine Harmonic Balancer Install and Crankshaft Holding Tool

Fragola 2201071-BL Straight Hose End Adapter Fitting, -6 AN to -8 AN

Walker Engineering 300853 Carbon Fiber Sprint Car Air Box Base

BluePrint Engines BPP12110338 SBF Block, 9.500 Deck x 4.000 Bore

FiTech 70082 LS 750HP Dual Quad EFI Cathedral Port, Trans Control