1981 GMC K2500 Cooling and Heating Parts

2,882 products fit your

1981 GMC K2500

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1981 GMC K2500

Products

Chrome 90 Degree Heater Hose Fitting, 5/8 Inch Hose

Speedway Motors |

#58666380

Chrome 90 Degree Heater Hose Fitting, 5/8 Inch Hose

(32)

Thread Pitch:

1/2" NPT

Angle:

90 degree

Finish:

Chrome

$20.99

/each

Chrome 90 Degree Heater Hose Fitting, 3/4 Inch Hose

Speedway Motors |

#58666382

Chrome 90 Degree Heater Hose Fitting, 3/4 Inch Hose

(20)

Thread Pitch:

1/2" NPT

Angle:

90 degree

Finish:

Chrome

$26.99

/each

AutoMeter |

#1825431

AutoMeter 5431 Pro-Comp Mechanical Water Temperature Gauge

(2)

Gauge Diameter:

2-5/8"

Gauge Type:

Analog

Gauge Range:

140-280 °F

$151.99

/each

AutoMeter |

#1825432

AutoMeter 5432 Pro-Comp Mechanical Water Temperature Gauge

Gauge Diameter:

2-5/8"

Gauge Range:

120-240 °F

Bezel Finish:

Brushed Aluminum

$158.99

/each

Aluminum Flare to Pipe Tee on Run Fitting, AN3 to 1/8 Inch NPT

Speedway Motors |

#6176110

Aluminum Flare to Pipe Tee on Run Fitting, AN3 to 1/8 Inch NPT

(1)

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Male

Fitting End C:

-3 AN Male

$13.99

/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.

Cooling a '46 Ford Sedan

In this Tech Tip, John offers some guidance to a customer looking to cool his 1946 Ford Sedan.

Keeping your 1955 Chevy Cool

Shortcuts don't always pay off. Zach Raddatz walk us through his experience with a cheap radiator so we don't make the same mistake!

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.

Upgrading the Cooling System for a Small Block Chevy

Learn how to successfully upgrade the cooling system for a 400 small block Chevy. Read tips for installing a water pump and auxiliary coolant lines using fittings and fuel hoses.

Installing an External Oil Cooler

In this guide, Kevin demonstrates how to properly install an external oil cooler in his '54 Chevy Belair with a Big Block Chevy engine.

-23%

Aluminum Flare to Pipe Tee on Run Fitting, AN4 to 1/8 Inch NPT

Speedway Motors |

#6176111

Aluminum Flare to Pipe Tee on Run Fitting, AN4 to 1/8 Inch NPT

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Fitting End C:

-4 AN Male

$10.49

/each

$13.74

-54%

Aluminum Flare to Pipe Tee on Run Fitting, AN6 to 1/4 Inch NPT

Speedway Motors |

#6176112

Aluminum Flare to Pipe Tee on Run Fitting, AN6 to 1/4 Inch NPT

(1)

Fitting End A:

-6 AN Male

Fitting End B:

1/4" NPT Male

Fitting End C:

-6 AN Male

$7.39

/each

$16.12

-25%

Aluminum Flare Bulkhead Fitting, 90 Degree, -10 AN

Speedway Motors |

#6176127

Aluminum Flare Bulkhead Fitting, 90 Degree, -10 AN

Garage Sale Type:

Discontinued

AN Size:

-10 AN

Angle:

90 degree

$22.09

/each

$29.63

-13%

Aluminum Flare Bulkhead Fitting, 45 Degree, -4 AN

Speedway Motors |

#324983704

Aluminum Flare Bulkhead Fitting, 45 Degree, -4 AN

AN Size:

-4 AN

Angle:

45 degree

Fitting End A:

-4 AN Male

$9.49

/each

$10.95

Straight Socketless Push-On Hose End, -10 AN

Speedway Motors |

#6202004

Straight Socketless Push-On Hose End, -10 AN

(5)

Fitting Hose Size:

-10 AN

Fitting End A:

-10 AN Female

Fitting End B:

-10 AN Hose

$14.99

/each

45 Degree Socketless Push-On Hose End, -6 AN

Speedway Motors |

#6202009

45 Degree Socketless Push-On Hose End, -6 AN

(4)

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$14.99

/each

Speedway Full Flow Swivel Hose End Fitting, 90 Degree, Red/Blue, -8 AN

Speedway Motors |

#6201017

Speedway Full Flow Swivel Hose End Fitting, 90 Degree, Red/Blue, -8 AN

(5)

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$24.99

/each

Speedway Motors |

#6176037

Flare Union Adapter Fittings, -10 AN

Fitting End A:

-10 AN Male

Fitting End B:

-10 AN Male

Angle:

Straight

$10.99

/each

Speedway Motors |

#6176130

Aluminum Tee Bulkhead Fitting, -3 AN

(1)

AN Size:

-3 AN

Angle:

Tee

Fitting End A:

-3 AN Male

$19.99

/each

Straight Aluminum Bulkhead Flare Fitting, Blue, -10 AN

Speedway Motors |

#6176120

Straight Aluminum Bulkhead Flare Fitting, Blue, -10 AN

AN Size:

-10 AN

Angle:

Straight

Fitting End A:

-10 AN Male

$12.99

/each

-82%

Straight Aluminum Bulkhead Flare Fitting, Blue, -12 AN

Speedway Motors |

#6176121

Straight Aluminum Bulkhead Flare Fitting, Blue, -12 AN

Garage Sale Type:

Discontinued

AN Size:

-12 AN

Angle:

Straight

$5.10

/each

$29.67

Goodridge |

#6174072

Goodridge GA-904 90 Degree Gauge Fitting -4 AN Male to 1/8 NPT Fem

(1)

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Female

Angle:

90 degree

$12.49

/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

Stewart Warner |

#66582326

Stewart Warner Deluxe Water Temperature Gauge, Mechanical, 2-1/16 Inch

(28)

Gauge Diameter:

2-1/16"

Gauge Range:

100-265 °F

Bezel Finish:

Stainless

as low as

$105.99

/each

Steel 45 Degree -4 AN to 1/8 NPT Male Adapter Fitting

Speedway Motors |

#324962304

Steel 45 Degree -4 AN to 1/8 NPT Male Adapter Fitting

(3)

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

45 degree

$6.49

/each

$132 Off

Aeroquip |

#6174266

Aeroquip FBM4266 Starlite Crimp Fitting, 180 Degree, -16 AN

(1)

Garage Sale Type:

Open Box

Fitting Hose Size:

-16 AN

Fitting End A:

-16 AN Female

$60.55

/each

$192.99

Straight Socketless Reuseable Push-On Hose End for -4 AN Fitting

Speedway Motors |

#1061231

Straight Socketless Reuseable Push-On Hose End for -4 AN Fitting

(2)

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$10.99

/each

-70%

Aluminum Male AN12 O-Ring to AN12 Adaptor

Aeroquip |

#1062955

Aluminum Male AN12 O-Ring to AN12 Adaptor

(1)

Fitting End A:

-12 AN Male

Fitting End B:

-12 AN Male O-ring

Angle:

Straight

$16.99

/each

$58.19

Straight Socketless Reuseable Push-On Hose End for -8 AN Fitting

Speedway Motors |

#1061233

Straight Socketless Reuseable Push-On Hose End for -8 AN Fitting

(1)

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$12.99

/each

-71%

Socketless Reusable Push-On Hose End for -8 AN Fitting, 45 Degree

Aeroquip |

#1061440

Socketless Reusable Push-On Hose End for -8 AN Fitting, 45 Degree

(2)

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$18.99

/each

$67.82

-70%

Socketless Reusable Push-On Hose End for -4 AN Fitting, 90 Degree

Aeroquip |

#1061241

Socketless Reusable Push-On Hose End for -4 AN Fitting, 90 Degree

(3)

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$16.99

/each

$57.40

Straight High-Flow O-Ring -8 AN Hose to -8 AN Port Fitting

Speedway Motors |

#6177013

Straight High-Flow O-Ring -8 AN Hose to -8 AN Port Fitting

(1)

Fitting End A:

-8 AN Male

Fitting End B:

-8 AN Male o-ring

Angle:

Straight

$13.99

/each

Threaded Aluminum Weld Bung Fitting, 3/4 Inch NPT Female

Speedway Motors |

#6176806

Threaded Aluminum Weld Bung Fitting, 3/4 Inch NPT Female

Thread Pitch:

3/4" NPT Female

Material Type:

Aluminum

Finish:

Natural

$13.99

/each

Male Steel 37 Degree AN Flare Weld Bung Fitting, -4 AN

Speedway Motors |

#6177104

Male Steel 37 Degree AN Flare Weld Bung Fitting, -4 AN

(1)

AN Size:

-4 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$5.49

/each

Male Steel 37 Degree AN Flare Weld Bung Fitting, -6 AN

Speedway Motors |

#6177106

Male Steel 37 Degree AN Flare Weld Bung Fitting, -6 AN

(4)

AN Size:

-6 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$6.99

/each

Male Steel 37 Degree AN Flare Weld Bung Fitting, -8 AN

Speedway Motors |

#6177108

Male Steel 37 Degree AN Flare Weld Bung Fitting, -8 AN

(4)

AN Size:

-8 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$7.99

/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

Titan Tools |

#72845207

Titan Tools 45207 Hose Clamp Assortment, 20 Piece

(3)

Style:

Worm Gear

Material Type:

Steel

Color:

Natural

$15.99

/box

Black 90 Degree -3 AN Flare to 1/8 Inch NPT Pipe Adapter Fitting

Speedway Motors |

#61760791

Black 90 Degree -3 AN Flare to 1/8 Inch NPT Pipe Adapter Fitting

(4)

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$18.49

/each

Speedway Motors |

#91015720

Aluminum Fan Spacers with Bolts

(118)

Material Type:

Aluminum

Finish:

Natural

Sold in Quantity:

Each

$16.99

/each

-29%

Fragola |

#61795231

Fragola 495023-BL 90 Black Press Gauge Fitting 1/8 Fem -4 AN Male

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Female

Angle:

90 degree

$8.19

/each

$11.65

Showing 1 - 72 of 2,882 results

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1981 GMC K2500 Cooling and Heating Parts

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Products

Chrome 90 Degree Heater Hose Fitting, 5/8 Inch Hose

Chrome 90 Degree Heater Hose Fitting, 3/4 Inch Hose

AutoMeter 5431 Pro-Comp Mechanical Water Temperature Gauge

AutoMeter 5432 Pro-Comp Mechanical Water Temperature Gauge

Aluminum Flare to Pipe Tee on Run Fitting, AN3 to 1/8 Inch NPT

Related Articles

Aluminum Flare to Pipe Tee on Run Fitting, AN4 to 1/8 Inch NPT

Aluminum Flare to Pipe Tee on Run Fitting, AN6 to 1/4 Inch NPT

Aluminum Flare Bulkhead Fitting, 90 Degree, -10 AN

Aluminum Flare Bulkhead Fitting, 45 Degree, -4 AN

Straight Socketless Push-On Hose End, -10 AN

45 Degree Socketless Push-On Hose End, -6 AN

Speedway Full Flow Swivel Hose End Fitting, 90 Degree, Red/Blue, -8 AN

Flare Union Adapter Fittings, -10 AN

Aluminum Tee Bulkhead Fitting, -3 AN

Straight Aluminum Bulkhead Flare Fitting, Blue, -10 AN

Straight Aluminum Bulkhead Flare Fitting, Blue, -12 AN

Goodridge GA-904 90 Degree Gauge Fitting -4 AN Male to 1/8 NPT Fem

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

Stewart Warner Deluxe Water Temperature Gauge, Mechanical, 2-1/16 Inch

Steel 45 Degree -4 AN to 1/8 NPT Male Adapter Fitting

Aeroquip FBM4266 Starlite Crimp Fitting, 180 Degree, -16 AN

Straight Socketless Reuseable Push-On Hose End for -4 AN Fitting

Aluminum Male AN12 O-Ring to AN12 Adaptor

Straight Socketless Reuseable Push-On Hose End for -8 AN Fitting

Socketless Reusable Push-On Hose End for -8 AN Fitting, 45 Degree

Socketless Reusable Push-On Hose End for -4 AN Fitting, 90 Degree

Straight High-Flow O-Ring -8 AN Hose to -8 AN Port Fitting

Threaded Aluminum Weld Bung Fitting, 3/4 Inch NPT Female

Male Steel 37 Degree AN Flare Weld Bung Fitting, -4 AN

Male Steel 37 Degree AN Flare Weld Bung Fitting, -6 AN

Male Steel 37 Degree AN Flare Weld Bung Fitting, -8 AN

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

Titan Tools 45207 Hose Clamp Assortment, 20 Piece

Black 90 Degree -3 AN Flare to 1/8 Inch NPT Pipe Adapter Fitting

Aluminum Fan Spacers with Bolts

Fragola 495023-BL 90 Black Press Gauge Fitting 1/8 Fem -4 AN Male