1981 GMC C3500 Cooling and Heating Parts

2,895 products fit your

1981 GMC C3500

Add Engine

Show Direct Fit Parts

2,895 products

Sort By:

Clear All

Fitment

1981 GMC C3500

Products

-7%

Earls |

#425700109ERL

Earls 700109ERL Straight -8 AN Female to 1/2 Inch Barb Adapter

(2)

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$10.60

/each

$11.46

-7%

Earls |

#425AT809008ERL

Earls AT809008ERL 90 Degree -8 AN Female to -8 AN Swivel Low Profile

Fitting Hose Size:

-8 AN

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Hose

$51.95

/each

$56.19

-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 |

#425915103ERL

Earls 915103ERL Blue Anodized Straight -3AN Female Swivel Coupling

(1)

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Female

Angle:

Straight

$16.42

/each

$17.76

-7%

Earls |

#425981604ERL

Earls 981604ERL Blue Straight -4 AN Male to 1/8 Inch NPT Adapter

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Angle:

Straight

$7.43

/each

$8.03

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.

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.

-7%

Earls |

#425916108ERL

Earls 916108ERL Blue Straight -8 AN Swivel to 3/8 In Male NPT Adapter

(1)

Fitting End A:

-8 AN Female

Fitting End B:

3/8" NPT Male

Angle:

Straight

$20.87

/each

$22.58

-7%

Earls |

#425AT949096ERL

Earls AT949096ERL 90 Degree -6 AN Male to 5/8-18 Inch Swivel Adapter

(1)

Fitting End A:

-6 AN Male

Fitting End B:

5/8"-18 Male Inverted Flare

Angle:

90 degree

$39.90

/each

$43.17

-7%

Earls |

#425916112ERL

Earls 916112ERL Blue Straight -12 AN Swivel to 3/4 In Male NPT Adapter

Fitting End A:

-12 AN Female

Fitting End B:

3/4" NPT Male

Angle:

Straight

$41.81

/each

$45.23

-7%

Earls |

#425997106ERL

Earls 997106ERL -6 AN Male Weld Fitting, Lightweight Aluminum

AN Size:

-6 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$10.40

/each

$11.25

-7%

Earls |

#425935106ERL

Earls 935106ERL Blue 90 Degree -6 AN Female to Female Swivel Adapter

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Female

Angle:

90 degree

$28.36

/each

$30.68

-7%

Earls |

#425997120ERL

Earls 997120ERL -20 AN Male Weld Fitting, Lightweight Aluminum

AN Size:

-20 AN

Thread Type:

RH Male

Fitting Attachment 1:

Male Threads

$41.81

/each

$45.23

-7%

Earls |

#4259919DFHERL

Earls 9919DFHERL Straight -6 AN Male to 14mm x 1.5 Adapter, Blue

Fitting End A:

-6 AN Male

Fitting End B:

14mm x 1.5 Male

Angle:

Straight

$17.89

/each

$19.35

-8%

Earls |

#425AT709116ERL

Earls AT709116ERL 90 Degree Ano-Tuff -16 AN Female to -16 AN Hose End

Fitting Hose Size:

-16 AN

Fitting End A:

-16 AN Female

Fitting End B:

-16 AN Hose

$73.29

/each

$79.95

-7%

Earls |

#425AT935108ERL

Earls AT935108ERL 90 Degree -8 AN Female to Female Swivel Adapter

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Female

Angle:

90 degree

$33.24

/each

$35.96

Earls |

#425AT935112ERL

Earls AT935112ERL 90 Degree -12 AN Female to Female Swivel Adapter

Fitting End A:

-12 AN Female

Fitting End B:

-12 AN Female

Angle:

90 degree

$35.95

/each

-7%

Earls |

#425PANE6500BKERL

Earls PANE6500BK-ERL Quarter Turn Fasteners, 7/16 Inch, .500

(2)

Head Diameter:

0.75"

Material Type:

Steel

Finish:

Black

$37.53

/set

$40.60

$145 Off

Tuff Stuff |

#42823459

Tuff Stuff 4515NBDP Polished V-Belt AC Compressor

(3)

A/C Compressor Type:

Sanden SD-508

Material Type:

Aluminum

Finish:

Polished

$366.99

/each

$511.69

-7%

Earls |

#425LS0022ERL

Earls LS0022ERL Remote Mount Electric Water Pumps Block Adapters

Gasket(s) Included:

Yes

Material Type:

Billet Aluminum

Finish:

Anodized Black

$184.95

/kit

$200.95

-7%

Earls |

#425SS981662ERL

Earls SS981662ERL Straight -6 AN Male to 1/8 Inch NPT

(1)

Fitting End A:

-6 AN Male

Fitting End B:

1/8" NPT Male

Angle:

Straight

$26.57

/each

$28.74

Earls |

#425LS0035ERL

Earls LS0035ERL Adjustable Coolant Cross-Over Tube, -12 AN Female

Fitting End A:

-16 AN Male

Fitting End B:

-12 AN Female

Material Type:

Billet Aluminum

$169.95

/each

-7%

Earls |

#425SS982203ERL

Earls SS982203ERL 90 Degree Elbow, -3 AN Male to 1/8 Inch NPT

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$33.24

/each

$35.96

-7%

Earls |

#425LS0036ERL

Earls LS0036ERL LS Steam Tube Kit w/ Stainless Hardline Tubing

Sold in Quantity:

Kit

GTIN Code:

090127075975

$311.95

/kit

$337.95

-7%

Earls |

#425LS0037ERL

Earls LS0037ERL Adjustable Coolant Cross-Over Tube, -12 AN Male

Fitting End A:

-16 AN Male

Fitting End B:

-12 AN Male

Material Type:

Billet Aluminum

$299.95

/each

$322.95

-8%

Earls |

#425SS982504ERL

Earls SS982504ERL Male -4 AN Tee to 1/8 Inch NPT on Branch

Fitting End A:

-4 AN Male

Fitting End B:

1/8" NPT Male

Fitting End C:

-4 AN Male

$56.85

/each

$61.95

-7%

Earls |

#425949096ERL

Earls 949096ERL Blue 90 Degree -6 AN Male to 5/8-18 Inch Swivel

(3)

Fitting End A:

-6 AN Male

Fitting End B:

5/8 in.-18 inverted flare

Angle:

90 degree

$39.90

/each

$43.17

-5%

Earls |

#425960403ERL

Earls 960403ERL -3 AN Bulkhead Tee on Run, Zinc Plated Steel

(1)

AN Size:

-3 AN

Angle:

Tee

Fitting End A:

-3 AN Male

$49.95

/each

$52.76

-7%

Earls |

#425AT100194ERL

Earls AT100194ERL Fuel Pressure Gauge Adapter -6 Male to 3/8 Inch NPT

(1)

Fitting End A:

-6 AN Male

Fitting End B:

3/8" NPT Male

Fitting End C:

1/8" NPT Female

$26.87

/each

$29.07

-7%

Earls |

#425961603ERL

Earls 961603ERL Straight -3 AN Male to 1/8 Inch NPT, Zinc Plated Steel

(1)

Fitting End A:

-3 AN Male

Fitting End B:

1/8" NPT Male

Angle:

Straight

$9.44

/each

$10.22

-7%

Earls |

#425AT100200ERL

Earls AT100200ERL Fuel Pressure Gauge Adapter -8 Male to -8 Female

(1)

Fitting End A:

-8 AN Female

Fitting End B:

-8 AN Male

Fitting End C:

1/8" NPT Female

$33.24

/each

$35.96

-7%

Earls |

#425604503ERL

Earls 604503ERL Speed-Seal Hose End, -3 AN, 45 Degree, Adjustable

Fitting Hose Size:

-3 AN

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Hose

$46.57

/each

$50.38

-7%

Earls |

#425609004ERL

Earls 609004ERL Speed-Seal Hose End, -4 AN, 90 Degree, Adjustable

Fitting Hose Size:

-4 AN

Fitting End A:

-4 AN Female

Fitting End B:

-4 AN Hose

$46.55

/each

$50.36

-8%

Earls |

#425609093ERL

Earls 609093ERL Speed-Seal Hose End, -3 AN, 90 Degree, Adjustable

Fitting Hose Size:

-3 AN

Fitting End A:

-3 AN Female

Fitting End B:

-3 AN Hose

$87.95

/each

$95.95

-7%

Earls |

#425781656ERL

Earls 781656ERL Vapor Guard Straight 3/8 Inch NPT to 5/16 Inch

(1)

Fitting End A:

5/16" Hose barb

Fitting End B:

3/8" NPT Male

Angle:

Straight

$12.93

/each

$13.98

-7%

Earls |

#425782252ERL

Earls 782252ERL Vapor Guard 90 Deg 1/8 Inch NPT to 5/16 Inch

(3)

Fitting End A:

5/16" Hose barb

Fitting End B:

1/8" NPT Male

Angle:

90 degree

$12.96

/each

$14.02

-7%

Earls |

#425591932ERL

Earls 591932ERL Brake Adapter, 7/16 Inch-24, -3 AN, Zinc Plated Steel

(3)

Fitting End A:

-3 AN Male

Fitting End B:

7/16"-24 I.F. Male

Material Type:

Steel

$22.40

/each

$24.23

-7%

Earls |

#425591941ERL

Earls 591941ERL Brake Adapter, 7/16 Inch-20, -4 AN, Zinc Plated Steel

Fitting End A:

-4 AN Male

Fitting End B:

7/16"-20 I.F. Male

Material Type:

Steel

$22.40

/pair

$24.23

Showing 1 - 252 of 2,895 results

Shop Feedback:

Did you find what you are looking for?

1981 GMC C3500 Cooling and Heating Parts

Subcategory

Part

Brand

Transmission Family

Availability

Engine Family

Discounts

Price

Customer Rating

Products

Earls 700109ERL Straight -8 AN Female to 1/2 Inch Barb Adapter

Earls AT809008ERL 90 Degree -8 AN Female to -8 AN Swivel Low Profile

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

Earls 915103ERL Blue Anodized Straight -3AN Female Swivel Coupling

Earls 981604ERL Blue Straight -4 AN Male to 1/8 Inch NPT Adapter

Related Articles

Earls 916108ERL Blue Straight -8 AN Swivel to 3/8 In Male NPT Adapter

Earls AT949096ERL 90 Degree -6 AN Male to 5/8-18 Inch Swivel Adapter

Earls 916112ERL Blue Straight -12 AN Swivel to 3/4 In Male NPT Adapter

Earls 997106ERL -6 AN Male Weld Fitting, Lightweight Aluminum

Earls 935106ERL Blue 90 Degree -6 AN Female to Female Swivel Adapter

Earls 997120ERL -20 AN Male Weld Fitting, Lightweight Aluminum

Earls 9919DFHERL Straight -6 AN Male to 14mm x 1.5 Adapter, Blue

Earls AT709116ERL 90 Degree Ano-Tuff -16 AN Female to -16 AN Hose End

Earls AT935108ERL 90 Degree -8 AN Female to Female Swivel Adapter

Earls AT935112ERL 90 Degree -12 AN Female to Female Swivel Adapter

Earls PANE6500BK-ERL Quarter Turn Fasteners, 7/16 Inch, .500

Tuff Stuff 4515NBDP Polished V-Belt AC Compressor

Earls LS0022ERL Remote Mount Electric Water Pumps Block Adapters

Earls SS981662ERL Straight -6 AN Male to 1/8 Inch NPT

Earls LS0035ERL Adjustable Coolant Cross-Over Tube, -12 AN Female

Earls SS982203ERL 90 Degree Elbow, -3 AN Male to 1/8 Inch NPT

Earls LS0036ERL LS Steam Tube Kit w/ Stainless Hardline Tubing

Earls LS0037ERL Adjustable Coolant Cross-Over Tube, -12 AN Male

Earls SS982504ERL Male -4 AN Tee to 1/8 Inch NPT on Branch

Earls 949096ERL Blue 90 Degree -6 AN Male to 5/8-18 Inch Swivel

Earls 960403ERL -3 AN Bulkhead Tee on Run, Zinc Plated Steel

Earls AT100194ERL Fuel Pressure Gauge Adapter -6 Male to 3/8 Inch NPT

Earls 961603ERL Straight -3 AN Male to 1/8 Inch NPT, Zinc Plated Steel

Earls AT100200ERL Fuel Pressure Gauge Adapter -8 Male to -8 Female

Earls 604503ERL Speed-Seal Hose End, -3 AN, 45 Degree, Adjustable

Earls 609004ERL Speed-Seal Hose End, -4 AN, 90 Degree, Adjustable

Earls 609093ERL Speed-Seal Hose End, -3 AN, 90 Degree, Adjustable

Earls 781656ERL Vapor Guard Straight 3/8 Inch NPT to 5/16 Inch

Earls 782252ERL Vapor Guard 90 Deg 1/8 Inch NPT to 5/16 Inch

Earls 591932ERL Brake Adapter, 7/16 Inch-24, -3 AN, Zinc Plated Steel

Earls 591941ERL Brake Adapter, 7/16 Inch-20, -4 AN, Zinc Plated Steel