International L121 Engine Parts

Get an exact fit for your

International L121

Year

Choose Year

Year

Make

International

Make

Model

L121

Model

5,571 products

Sort By:

Clear All

Fitment

International L121

Products

-10%

Turbosmart |

#37505061041

Turbosmart TS-0506-1041 Gen4 HyperGate45 Wastegate, 14PSI, Black

Wastegate Base Material:

Cast Stainless Steel

$468.89

/each

$520.99

-10%

Turbosmart |

#37505521013

Turbosmart TS-0552-1013 GenV CompGate40 Wastegate, 14PSI, Purple

Wastegate Base Material:

Cast Stainless Steel

Sold in Quantity:

Each

$394.19

/each

$437.99

-10%

Turbosmart |

#37505521312

Turbosmart TS-0552-1312 GenV CompGate40M Wastegate, 35PSI, Black

Wastegate Base Material:

Cast Stainless Steel

Sold in Quantity:

Each

$576.89

/each

$640.99

-10%

Turbosmart |

#37502032002

Turbosmart TS-0203-2002 Turbo Blow Off Valve Blanking Plate

GTIN Code:

9329677012958

$42.29

/each

$46.99

-10%

Turbosmart |

#37505541011

Turbosmart TS-0554-1011 GenV ProGate50 Wastegate, 14PSI, Blue

Wastegate Base Material:

Cast Stainless Steel

Sold in Quantity:

Each

$572.39

/each

$635.99

LT1 Engine Build Combinations | Recipes for 400–700+ HP

Build a high-performance Gen V LT engine with proven power combos and learn about LT upgrades and tuning tips for maximum power

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!

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.

Pick a Side: LS Engines

The GM LS engine is the hot powerplant these days. But is there too much of a good thing?

Engine Cylinder Numbers

Chevy L79 327 Engine I History, Specs, & Build Ideas

The 1964 Corvette L79 327 is legendary, learn more about this storied engine and what you need to build a clone.

Corvette L76 327 Engine History, Specs, and Build Ideas

The 1964 Corvette L76 327 is legendary, learn more about this storied engine and what you need to build a clone.

Building up an LT1

In this Tech Tip, John discusses LT1 rotating assembly options for a customer looking to build a solid autoX, drag, and occasional strip powerplant for his Firebird.

Speedway Tech Talk - LS1 Fuel Delivery Kit

Pat talks about one of our LS1 fuel delivery kits.

-10%

Turbosmart |

#37505551015

Turbosmart TS-0555-1015 GenV PowerGate60 Wastegate, 14PSI, Sleep

Wastegate Base Material:

Cast Stainless Steel

Sold in Quantity:

Each

$680.39

/each

$755.99

$129 Off

Turbosmart |

#37505541502

Turbosmart TS-0554-1502 GenV ProGate50 Electronic Wastegate

Wastegate Base Material:

Cast Stainless Steel

Sold in Quantity:

Each

$1,162.79

/each

$1,291.99

-10%

Turbosmart |

#37506251072

Turbosmart TS-0625-1072 Wastegate Actuator, Garret GT2860RS, 7PSI

Sold in Quantity:

Each

GTIN Code:

9329677013016

$229.49

/each

$254.99

-10%

Turbosmart |

#37506815072

Turbosmart TS-0681-5072 Universal 150MM Wastegate Actuator, 7PSI

Sold in Quantity:

Each

Wastegate Actuator Finish:

Black anodized

$190.79

/each

$211.99

-10%

Turbosmart |

#37508011003

Turbosmart TS-0801-1003 Oil Pressure Regulator, 40PSI, Blue

Material Type:

Stainless Steel

Adjustable:

Mounting Hardware Included:

$138.95

/each

$154.39

Edelbrock |

#3251941

Edelbrock 1941 Performer Series Q-Jet Carb Primary Metering Rod

Sold in Quantity:

Pair

Metering Rod Position:

Primary

$33.95

/pair

Edelbrock |

#3251485

Edelbrock 1485 Performer Series Carburetor Calibration Kit

Sold in Quantity:

Kit

Rebuild Kit Type:

Calibration Kit

$37.95

/each

FiTech |

#52170035

FiTech 70035 Ultimate LS3 1000HP EFI, Short Intake, Trans Control

Injection Style:

Multi-port

Injector Size:

80 lbs./hr.

Max Horsepower Rating:

1000

$2,689.00

/kit

-9%

Aeromotive |

#10913002

Aeromotive 13002 EFI Regulator Repair Kit

GTIN Code:

684980002874

$47.20

/kit

$51.92

-9%

Aeromotive |

#10913010

Aeromotive 13010 Regulator Repair Kit for 13208/13210

GTIN Code:

684980004908

$44.97

/kit

$49.47

-9%

Aeromotive |

#10915356

Aeromotive 15356 -10AN Straight PTFE Hose Fitting, Black Anodized

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$35.09

/each

$38.60

-9%

Aeromotive |

#10915661

Aeromotive 15661 -12 AN 90-Degree Swivel Hose End Fitting

Fitting Hose Size:

-12 AN

Fitting End A:

-12 AN Female

Fitting End B:

-12 AN Hose

$81.77

/each

$89.95

-9%

Aeromotive |

#10915676

Aeromotive 15676 Y-Block Fitting, -10 AN to -10 AN x 2

Fitting End A:

-10 AN Male

Fitting End B:

-10 AN Male

Fitting End C:

-10 AN Male

$75.19

/each

$82.71

-9%

Aeromotive |

#10915743

Aeromotive 15743 Union Fitting, -16 AN to -16 AN O-Ring

Fitting End A:

-16 AN Male

Fitting End B:

-16 AN Male O-ring

Angle:

Straight

$64.22

/each

$70.64

New Vintage USA |

#2760119301

New Vintage USA 01193-01 Performance Ser 2 1/16 Oil Temp Black

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$79.99

/each

New Vintage USA |

#2760119303

New Vintage USA 01193-03 Performance Ser 2 1/16 Oil Temp White

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$79.99

/each

New Vintage USA |

#2760112603

New Vintage USA 01226-03 Performance Ser 2 1/16 Oil Pressure Wht

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$109.99

/each

New Vintage USA |

#2760212603

New Vintage USA 02126-03 Performance ll 2 1/16 Oil Pressure White

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$186.99

/each

New Vintage USA |

#2762019305

New Vintage USA 20193-05 CFR Series 2 1/16" Oil Temperature Blue

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$131.99

/each

New Vintage USA |

#2760219301

New Vintage USA 02193-01 Performance ll 2 1/16 Oil Temp Black

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$131.99

/each

New Vintage USA |

#2760219303

New Vintage USA 02193-03 Performance ll 2 1/16 Oil Temp White

Gauge Diameter:

2-1/16"

Gauge Series:

Analog

Gauge Style:

Electric

$131.99

/each

DeatschWerks |

#40106102

DeatschWerks 6-1002-FRB Fuel Pressure Regulator

Regulator Style:

Adjustable

Material Type:

6061-T6 Aluminum

$139.00

/each

-7%

Earls |

#425916103ERL

Earls 916103ERL Blue Straight -3AN Swivel to 1/8 In Male NPT Adapter

Fitting End A:

-3 AN Female

Fitting End B:

1/8" NPT Male

Angle:

Straight

$22.39

/each

$24.22

-7%

Earls |

#425AT809010ERL

Earls AT809010ERL 90 Degree -10 AN Female to -10 AN Swivel Low Profile

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$59.89

/each

$64.95

-7%

Earls |

#425AT921112ERL

Earls AT921112ERL 90 Degree -12 AN Male to -12 AN Female Swivel

Fitting End A:

-12 AN Male

Fitting End B:

-12 AN Female

Angle:

90 degree

$59.89

/each

$64.95

-7%

Earls |

#425AT981607ERL

Earls AT981607ERL -8 AN Male to 1/4 Inch NPT Straight Adapter

Fitting End A:

-8 AN Male

Fitting End B:

1/4" NPT Male

Angle:

Straight

$17.89

/each

$19.35

-8%

Earls |

#425609236ERL

Earls 609236ERL 90 Deg -6 AN Aluminum Adjustable Speed-Seal Hose End

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$73.25

/each

$79.95

-8%

Mr Gasket |

#5501570

Mr Gasket 1570 Cam Degree Wheel, Universal, 7 Inch

GTIN Code:

084041015704

$60.49

/each

$65.95

-8%

Holley |

#4251204140

Holley 120-4140 4150 Drop Base Air Cleaner, 4 Inch Red Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$249.95

/each

$272.95

-7%

Holley |

#4251204630

Holley 120-4630 4500 Drop Base Air Cleaner, Black, 3 Inch Filter

Overall Diameter:

16"

Filter Material:

Cotton Gauze

$259.95

/each

$281.95

Holley |

#427122

Holley Main Jets

(27)

Material Type:

Brass

Sold in Quantity:

Pair

$14.87

/pair

Showing 1 - 216 of 5,571 results

Shop Feedback:

Did you find what you are looking for?

International L121 Engine Parts

Year

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

Turbosmart TS-0506-1041 Gen4 HyperGate45 Wastegate, 14PSI, Black

Turbosmart TS-0552-1013 GenV CompGate40 Wastegate, 14PSI, Purple

Turbosmart TS-0552-1312 GenV CompGate40M Wastegate, 35PSI, Black

Turbosmart TS-0203-2002 Turbo Blow Off Valve Blanking Plate

Turbosmart TS-0554-1011 GenV ProGate50 Wastegate, 14PSI, Blue

Related Articles

Turbosmart TS-0555-1015 GenV PowerGate60 Wastegate, 14PSI, Sleep

Turbosmart TS-0554-1502 GenV ProGate50 Electronic Wastegate

Turbosmart TS-0625-1072 Wastegate Actuator, Garret GT2860RS, 7PSI

Turbosmart TS-0681-5072 Universal 150MM Wastegate Actuator, 7PSI

Turbosmart TS-0801-1003 Oil Pressure Regulator, 40PSI, Blue

Edelbrock 1941 Performer Series Q-Jet Carb Primary Metering Rod

Edelbrock 1485 Performer Series Carburetor Calibration Kit

FiTech 70035 Ultimate LS3 1000HP EFI, Short Intake, Trans Control

Aeromotive 13002 EFI Regulator Repair Kit

Aeromotive 13010 Regulator Repair Kit for 13208/13210

Aeromotive 15356 -10AN Straight PTFE Hose Fitting, Black Anodized

Aeromotive 15661 -12 AN 90-Degree Swivel Hose End Fitting

Aeromotive 15676 Y-Block Fitting, -10 AN to -10 AN x 2

Aeromotive 15743 Union Fitting, -16 AN to -16 AN O-Ring

New Vintage USA 01193-01 Performance Ser 2 1/16 Oil Temp Black

New Vintage USA 01193-03 Performance Ser 2 1/16 Oil Temp White

New Vintage USA 01226-03 Performance Ser 2 1/16 Oil Pressure Wht

New Vintage USA 02126-03 Performance ll 2 1/16 Oil Pressure White

New Vintage USA 20193-05 CFR Series 2 1/16" Oil Temperature Blue

New Vintage USA 02193-01 Performance ll 2 1/16 Oil Temp Black

New Vintage USA 02193-03 Performance ll 2 1/16 Oil Temp White

DeatschWerks 6-1002-FRB Fuel Pressure Regulator

Earls 916103ERL Blue Straight -3AN Swivel to 1/8 In Male NPT Adapter

Earls AT809010ERL 90 Degree -10 AN Female to -10 AN Swivel Low Profile

Earls AT921112ERL 90 Degree -12 AN Male to -12 AN Female Swivel

Earls AT981607ERL -8 AN Male to 1/4 Inch NPT Straight Adapter

Earls 609236ERL 90 Deg -6 AN Aluminum Adjustable Speed-Seal Hose End

Mr Gasket 1570 Cam Degree Wheel, Universal, 7 Inch

Holley 120-4140 4150 Drop Base Air Cleaner, 4 Inch Red Filter

Holley 120-4630 4500 Drop Base Air Cleaner, Black, 3 Inch Filter

Holley Main Jets