GMC G2500 Radiators and Components

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GMC G2500

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GMC G2500

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AFCO |

#10680128X10

AFCO 80128X10 Aluminum Weld-On Female Fitting, 3/8 Inch NPT Thread

(3)

Thread Pitch:

3/8" NPT Female

Material Type:

Aluminum

Finish:

Natural

$21.99

/each

Longacre |

#47545243

Longacre® 52-45243 Caliper Fitting - 1/8 NPT x -3 AN Straight

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Male

Angle:

Straight

$9.19

/each

-23%

Fragola |

#6179522

Fragola 495022 Pressure Gauge Fitting, 1/8 Female to -3 AN Male 90

(1)

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Female

Angle:

90 degree

$8.49

/each

$11.10

AFCO |

#10680050

AFCO High Pressure Radiator Cap: 29-31 lbs.

(19)

Pressure Rating:

29-31 psi

Material Type:

Steel

$20.99

/each

AFCO |

#10680151

AFCO 80151 Plain Steel Radiator Cap, 20 Lbs

(2)

Pressure Rating:

20 psi

Material Type:

Steel

$22.99

/each

Car Cooling System Components

How does a cooling system work? Why is your engine overheating? What parts should you be giving your attention to? This guide answers all your questions.

Model A Radiator Mounting

Learn about Model A radiator mounting. Speedway employee Tim is installing a 1932 Ford radiator on his roadster. Follow his step by step installation guide.

Demolition Derby Radiator Guide

When it comes to demolition derby racing, radiators are a key component to be the last car running. Follow Jeremy's guide on the large variety of Demolition Derby radiators available at Speedway Motors.

Disassembling Valvetrain Components

Rebuilding an engine? Stay organized by using a valvetrain rocker arm organizer tray while disassembling the valvetrain components. Learn some tips on why you shouldn't mix up lifters if you intend on using them again.

Installing Radiator Support Rods

We all need a little help from time to time. In this case, we had a grill shell on a 1946 Chevrolet Truck that could use some stiffening. Ride along as Heath installs support rods and rod brackets.

Tech Talk: Double Pass Radiator

This tech talk reviews the advantages of swapping out a stock style down flow radiator in a '54 Bel Air with a BBC, to a double pass cross flow radiator. Kevin and Joe also discuss some of the modifications that will have to be made.

New Product Spotlight - 4th Quarter 2025 - Parts to Fuel Your Passion

Speedway Motors, a manufacturer, retailer and distributor of high-quality automotive parts and racing products, announced today new products now available on their website.

GM Steering Column Compatibility, Interchange & Repair Guide

Learn more about GM steering column identification, GM steering column lengths, and GM steering column compatibility.

GM Rally Wheels

Choosing new wheels for a GMC Chevrolet truck. This project uses Speedway Motors GM Rally Wheels and new tires to enhance the appearance of the truck.

How to Install Side Detent Shifter for GM TH200, TH250, TH350, and TH400

Learn how to install a side detent shifter in a 1969 Chevy C10.

AFCO |

#10680128X20

AFCO 80128X20 Weld-on Male Fitting, -20 AN

AN Size:

-20 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$22.99

/each

AFCO |

#10680128X8

AFCO 80128X8 Weld-on Male Fitting, -12 AN

AN Size:

-12 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$21.99

/each

-15%

AFCO |

#10680154BK

AFCO 80154BK Billet Radiator Filler Neck

(1)

$37.99

/each

$44.99

-42%

Fragola |

#617499104

Fragola 499104-BL 90 Degree Black Fitting, 1/8 NPT Male to -4 AN Male

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$18.99

/each

$33.01

-9%

AFCO |

#10680284WHIPPLE

AFCO 80284WHIPPLE Whipple Supercharger Bracket Kit

Sold in Quantity:

Each

$108.99

/each

$119.99

Bob Drake Reproductions |

#91192736

Large Ford Script Hose Clamp

Style:

Worm Gear

Sold in Quantity:

Each

$4.99

/each

Bob Drake Reproductions |

#91192737

Small Ford Script Hose Clamp

Style:

Worm Gear

Sold in Quantity:

Each

$3.99

/each

Male Steel and Aluminum 37 Degree AN Flare Weld Bung Master Kit

Speedway Motors |

#91508517

Male Steel and Aluminum 37 Degree AN Flare Weld Bung Master Kit

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

Material Type:

Polyethylene

$98.99

/kit

13 Inch Stainless Steel Expansion Tank, Black

Speedway Motors |

#91102214

13 Inch Stainless Steel Expansion Tank, Black

Capacity:

18 fl. oz.

Overall Diameter:

Material Type:

Aluminum

$39.99

/each

Polished Radiator Coolant Overflow Expansion Tank, 3 x 16 In.

Speedway Motors |

#91102216

Polished Radiator Coolant Overflow Expansion Tank, 3 x 16 In.

(33)

Capacity:

56.00 fl. oz.

Overall Diameter:

Material Type:

Stainless Steel

$64.99

/each

Polished Radiator Coolant Overflow Expansion Tank, 2 x 17 In.

Speedway Motors |

#91102217

Polished Radiator Coolant Overflow Expansion Tank, 2 x 17 In.

(33)

Capacity:

25 fl. oz.

Overall Diameter:

Material Type:

Stainless Steel

$58.99

/each

WindChill® LS Swap 3-Row Aluminum Radiator w/Cooler, Black

Speedway Motors |

#917359

WindChill® LS Swap 3-Row Aluminum Radiator w/Cooler, Black

(1)

Radiator Style:

Double Pass

Radiator Flow Direction:

Crossflow

Material Type:

Aluminum

as low as

$378.99

/each

Speedway Motors |

#91611040

Aluminum 1/8 Inch NPT Hose Barb Fitting

(6)

Fitting End A:

3/8" Hose barb

Fitting End B:

1/8" NPT Male

Angle:

Straight

$7.99

/each

Straight Chrome Fitting, 1/4 Inch Hose to 1/4 Inch NPT

Speedway Motors |

#91611046

Straight Chrome Fitting, 1/4 Inch Hose to 1/4 Inch NPT

(1)

Fitting End A:

1/4" Hose barb

Fitting End B:

1/4" NPT Male

Angle:

Straight

$8.99

/each

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 1/8 NPT

Speedway Motors |

#91611055

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 1/8 NPT

(1)

Fitting End A:

3/8" Hose barb

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$8.99

/each

WindChill® SBC/BBC Aluminum 3-Row Radiator w/ Cooler, Black

Speedway Motors |

#9173541

WindChill® SBC/BBC Aluminum 3-Row Radiator w/ Cooler, Black

Radiator Style:

Single Pass

Radiator Flow Direction:

Crossflow

Material Type:

Aluminum

as low as

$378.99

/each

WindChill® LS Swap 3-Row Aluminum Radiator, Black

Speedway Motors |

#9173561

WindChill® LS Swap 3-Row Aluminum Radiator, Black

Radiator Style:

Double Pass

Radiator Flow Direction:

Crossflow

Material Type:

Aluminum

as low as

$353.99

/each

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

Speedway Motors |

#472981613

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

(1)

Fitting End A:

-10 AN Male

Fitting End B:

3/4" NPT Male

Angle:

Straight

$16.99

/each

Straight Chrome Fitting, 3/8 Inch Hose to 1/8 Inch NPT

Speedway Motors |

#91611049

Straight Chrome Fitting, 3/8 Inch Hose to 1/8 Inch NPT

(1)

Fitting End A:

3/8" Hose barb

Fitting End B:

1/8" NPT Male

Angle:

Straight

$9.49

/each

$124 Off

WindChill® LS 3-Row Radiator w/ Transmission Cooler, Shroud/Fan

Speedway Motors |

#917366

WindChill® LS 3-Row Radiator w/ Transmission Cooler, Shroud/Fan

(1)

Radiator Style:

Double Pass

Radiator Flow Direction:

Crossflow

Material Type:

Aluminum

as low as

$428.99

/kit

$553.26

Billet Specialties |

#910678250

Billet Specialties 67825 Aluminum Hose Clamp, 1-1/2 Inch Rubber Hose

(9)

Style:

Worm Gear | Housing

Material Type:

Aluminum

Color:

Natural

$37.95

/each

Billet Specialties |

#910679250

Billet Specialties 67925 Aluminum Hose Clamp, 1-3/4 Inch Rubber Hose

(1)

Style:

Worm Gear | Housing

Material Type:

Aluminum

Color:

Natural

$37.95

/each

Stainless T-Bolt Clamp, 1-13/16 Inch Minimum Clamping Diameter

Speedway Motors |

#910553322

Stainless T-Bolt Clamp, 1-13/16 Inch Minimum Clamping Diameter

(2)

Style:

T-Bolt

Material Type:

Stainless Steel

Color:

Natural

$6.19

/each

Stainless T-Bolt Clamp, 2-1/2 Inch Minimum Clamping Diameter

Speedway Motors |

#910553326

Stainless T-Bolt Clamp, 2-1/2 Inch Minimum Clamping Diameter

(4)

Style:

T-Bolt

Material Type:

Stainless Steel

Color:

Natural

$7.69

/each

Stainless T-Bolt Clamp, 4-1/4 Inch Minimum Clamping Diameter

Speedway Motors |

#910553360

Stainless T-Bolt Clamp, 4-1/4 Inch Minimum Clamping Diameter

Style:

T-Bolt

Material Type:

Stainless Steel

Color:

Natural

$7.49

/each

AFCO |

#10680125NDPU

AFCO 80125NDP-U 19 in. X 26 in. Double Pass Radiator, Univ. Inlet

Radiator Style:

Double Pass

Material Type:

Aluminum

Tube Size:

1.5"

$398.99

/each

-14%

AFCO |

#10680100NDPU

AFCO 80100NDP-U 19 in. X 25 in. Double Pass Radiator, Universal I

Radiator Style:

Double Pass

Material Type:

Aluminum

Tube Size:

1.5"

$340.99

/each

$399.99

-14%

AFCO |

#10680101NU

AFCO 80101N-U 19 in. X 27.5 in. Radiator, Universal Inlet

Radiator Style:

Single Pass

Material Type:

Aluminum

Tube Size:

1.5"

$314.99

/each

$369.99

All American Billet |

#38801116

All American Billet Radiator Overflow Tank 10 Inch, 12 Inch, 14 Inch

Overall Diameter:

2.375"

Material Type:

6061-T6 Aluminum

as low as

$151.95

/each

COMP Cams |

#282G31250

COMP Cams G31250 Gator Brand Hose Clamp, 2 - 2.75 in Range, Size 32-36

(1)

Style:

Worm Gear

Material Type:

Stainless Steel

Color:

Natural

$6.95

/each

-7%

Earls |

#425900106ERL

Earls 900106ERL Red Fuel/Oil Line Hose Clamp, Econ-O-Fit Size 6

(1)

Style:

Worm Gear | Housing

Material Type:

Aluminum

Color:

Red

$8.93

/each

$9.66

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GMC G2500 Radiators and Components

Year

Part

Brand

Availability

Discounts

Engine Family

Price

Customer Rating

Products

AFCO 80128X10 Aluminum Weld-On Female Fitting, 3/8 Inch NPT Thread

Longacre® 52-45243 Caliper Fitting - 1/8 NPT x -3 AN Straight

Fragola 495022 Pressure Gauge Fitting, 1/8 Female to -3 AN Male 90

AFCO High Pressure Radiator Cap: 29-31 lbs.

AFCO 80151 Plain Steel Radiator Cap, 20 Lbs

Related Articles

AFCO 80128X20 Weld-on Male Fitting, -20 AN

AFCO 80128X8 Weld-on Male Fitting, -12 AN

AFCO 80154BK Billet Radiator Filler Neck

Fragola 499104-BL 90 Degree Black Fitting, 1/8 NPT Male to -4 AN Male

AFCO 80284WHIPPLE Whipple Supercharger Bracket Kit

Large Ford Script Hose Clamp

Small Ford Script Hose Clamp

Male Steel and Aluminum 37 Degree AN Flare Weld Bung Master Kit

13 Inch Stainless Steel Expansion Tank, Black

Polished Radiator Coolant Overflow Expansion Tank, 3 x 16 In.

Polished Radiator Coolant Overflow Expansion Tank, 2 x 17 In.

WindChill® LS Swap 3-Row Aluminum Radiator w/Cooler, Black

Aluminum 1/8 Inch NPT Hose Barb Fitting

Straight Chrome Fitting, 1/4 Inch Hose to 1/4 Inch NPT

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 1/8 NPT

WindChill® SBC/BBC Aluminum 3-Row Radiator w/ Cooler, Black

WindChill® LS Swap 3-Row Aluminum Radiator, Black

Blue Straight AN10 Flare Adapter to 3/4 Inch Aluminum Pipe Fitting

Straight Chrome Fitting, 3/8 Inch Hose to 1/8 Inch NPT

WindChill® LS 3-Row Radiator w/ Transmission Cooler, Shroud/Fan

Billet Specialties 67825 Aluminum Hose Clamp, 1-1/2 Inch Rubber Hose

Billet Specialties 67925 Aluminum Hose Clamp, 1-3/4 Inch Rubber Hose

Stainless T-Bolt Clamp, 1-13/16 Inch Minimum Clamping Diameter

Stainless T-Bolt Clamp, 2-1/2 Inch Minimum Clamping Diameter

Stainless T-Bolt Clamp, 4-1/4 Inch Minimum Clamping Diameter

AFCO 80125NDP-U 19 in. X 26 in. Double Pass Radiator, Univ. Inlet

AFCO 80100NDP-U 19 in. X 25 in. Double Pass Radiator, Universal I

AFCO 80101N-U 19 in. X 27.5 in. Radiator, Universal Inlet

All American Billet Radiator Overflow Tank 10 Inch, 12 Inch, 14 Inch

COMP Cams G31250 Gator Brand Hose Clamp, 2 - 2.75 in Range, Size 32-36

Earls 900106ERL Red Fuel/Oil Line Hose Clamp, Econ-O-Fit Size 6