GMC 250 AN Fitting Reducers

Get an exact fit for your

GMC 250

Year

Choose Year

Year

Make

Choose Make

Make

Model

Choose Model

Model

Select Angle

All

Straight

90 degree

43 products

Sort By:

Clear All

Fitment

GMC 250

Products

Aluminum Flare Reducer Adapter, Blue, -8 AN to -10 AN

Speedway Motors |

#6176179

Aluminum Flare Reducer Adapter, Blue, -8 AN to -10 AN

Angle:

Straight

Fitting End A:

-8 AN Male

Fitting End B:

-10 AN Male

$8.49

/each

Aluminum Flare Reducer Adapter, Black, -8 AN to -12 AN

Speedway Motors |

#61761811

Aluminum Flare Reducer Adapter, Black, -8 AN to -12 AN

Angle:

Straight

Fitting End A:

-8 AN Male

Fitting End B:

-12 AN Male

$15.99

/each

Earls |

#425991902ERL

Earls 991902ERL Blue Anodized -4 AN Male to -3 AN Male Union Reducer

Angle:

Straight

Fitting End A:

-4 AN Male

Fitting End B:

-3 AN Male

$6.95

/each

-7%

Earls |

#4259892108ERL

Earls 9892108ERL Blue -10 AN Female to -8 AN Male Flare Reducer

Angle:

Straight

Fitting End A:

-10 AN Female

Fitting End B:

-8 AN Male

$25.36

/each

$27.43

-7%

Earls |

#425AT915186ERL

Earls AT915186ERL Straight -8 AN to -6 AN Female Swivel Coupling

(1)

Angle:

Straight

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Female

$19.41

/each

$20.99

Quick Tip on Securing AN Fittings

Dick from Koul Tools shares a tip on how to properly seat the AN fittings using the Koul Tools device.

1967-1972 Chevy C10 Pickup Lowering Guide

From a mild leveling to slammed and “in the weeds” there are several options to lowering a C10. We discuss the options in our ’67-’72 C10 lowering guide.

Automotive Fittings | IFF, IFM, AN, & NPT

What fittings should you use with your brake or fuel system? What does AN and NPT stand for? All of these questions plus more will be answered in Speedway Motors' latest article about fasteners!

Wrapping Exhaust Manifolds to Reduce Under Hood Temps

Learn how to wrap exhaust headers to help keep under hood temperatures down. This articles shows how cast iron exhaust manifolds are wrapped in 1-inch black header wrap with stainless steel exhaust wrap ties.

Best Type of Mufflers to Create the Perfect Exhaust Note | Glasspack Muffler vs Chambered Muffler

From glasspack, turbo, and chambered mufflers, to resonators, and more, which muffler is best for you? See our guide to learn more.

Hose & Fitting

Selecting Quarter-Turn Fasteners

There are several types of quarter-turn fasteners used in the performance automotive aftermarket and in this buyer's guide we'll help show you the correct fastener for your application and how some of the most common types of fasteners are used.

Complete Guide to Lowering Options for Your Muscle Car, Hot Rod, or Truck

There is certainly more than one way to get your project's ride height or stance where you want it and we provide a brief overview of the options in this buyer's guide on lowering products.

Upgrade Your Ride with a Mini Starter!

Little is thought of your engine’s starter until it refuses to turn your engine over at the worst possible moment. Today’s powerful mini starters can crank the biggest engines with ease. Learn how in our buyer’s guide.

Brake Kit Fitment

So many brake kits. So many options. Take a breath and click here.

-9%

Aeromotive |

#10915682

Aeromotive 15682 -12 AN to -10 AN Swivel Union Reducer Fitting

Angle:

Straight

Fitting End A:

-10 AN Male o-ring

Fitting End B:

-12 AN Male O-ring

$52.68

/each

$57.95

Aluminum Flare Reducer Adapter, Black, -8 AN to -10 AN

Speedway Motors |

#61761791

Aluminum Flare Reducer Adapter, Black, -8 AN to -10 AN

Angle:

Straight

Fitting End A:

-8 AN Male

Fitting End B:

-10 AN Male

$14.99

/each

-46%

Aluminum Flare Reducer Adapter, Blue, -10 AN to -12 AN

Speedway Motors |

#6176182

Aluminum Flare Reducer Adapter, Blue, -10 AN to -12 AN

Garage Sale Type:

Discontinued

Angle:

Straight

Fitting End A:

-10 AN Male

$11.89

/each

$22.11

Aluminum Flare Reducer Adapter, Black, -4 AN to -6 AN

Speedway Motors |

#61761761

Aluminum Flare Reducer Adapter, Black, -4 AN to -6 AN

Angle:

Straight

Fitting End A:

-4 AN Male

Fitting End B:

-6 AN Male

$7.99

/each

Aluminum Flare Reducer Adapter, Black, -6 AN to -10 AN

Speedway Motors |

#61761781

Aluminum Flare Reducer Adapter, Black, -6 AN to -10 AN

Angle:

Straight

Fitting End A:

-6 AN Male

Fitting End B:

-10 AN Male

$12.99

/each

Goodridge |

#472995011

Goodridge AN950-10-08D -10 AN Female to -8 AN Male Adapter Fitting

(7)

Angle:

Straight

Fitting End A:

-10 AN Female

Fitting End B:

-8 AN Male

$35.99

/each

-48%

Aluminum Flare Reducer Adapter, Black, -10 AN to -12 AN

Speedway Motors |

#61761821

Aluminum Flare Reducer Adapter, Black, -10 AN to -12 AN

Angle:

Straight

Fitting End A:

-10 AN Male

Fitting End B:

-12 AN Male

$14.99

/each

$29.03

Aluminum Flare Reducer Adapter, Blue, -6 AN to -8 AN

Speedway Motors |

#6176177

Aluminum Flare Reducer Adapter, Blue, -6 AN to -8 AN

(2)

Angle:

Straight

Fitting End A:

-6 AN Male

Fitting End B:

-8 AN Male

$13.99

/each

Aluminum -8 AN Female to -6 AN Male Reducer Fitting

Speedway Motors |

#472995008

Aluminum -8 AN Female to -6 AN Male Reducer Fitting

(13)

Angle:

Straight

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Male

$12.99

/each

-7%

Earls |

#425AT9892108ERL

Earls AT9892108ERL Female -10 AN to Male -8 AN Aluminum Flare Reducer

Angle:

Straight

Fitting End A:

-10 AN Female

Fitting End B:

-8 AN Male

$25.36

/each

$27.43

-7%

Earls |

#425AT9893034ERL

Earls AT9893034ERL Female -3 AN to Male -4 AN Aluminum Flare Expander

(2)

Angle:

Straight

Fitting End A:

-4 AN Male

Fitting End B:

-3 AN Female

$25.36

/each

$27.43

Aluminum Flare Reducer Adapter, Black, -6 AN to -8 AN

Speedway Motors |

#61761771

Aluminum Flare Reducer Adapter, Black, -6 AN to -8 AN

(1)

Angle:

Straight

Fitting End A:

-6 AN Male

Fitting End B:

-8 AN Male

$13.99

/each

Aluminum Flare Reducer Adapter, Black, -3 AN to -4 AN

Speedway Motors |

#61761751

Aluminum Flare Reducer Adapter, Black, -3 AN to -4 AN

(1)

Angle:

Straight

Fitting End A:

-3 AN Male

Fitting End B:

-4 AN Male

$9.99

/each

-7%

Earls |

#425AT9892084ERL

Earls AT9892084ERL Female -8 AN to Male -4 AN Aluminum Flare Reducer

Angle:

Straight

Fitting End A:

-8 AN Female

Fitting End B:

-4 AN Male

$22.40

/each

$24.23

-7%

Earls |

#425AT9892086ERL

Earls AT9892086ERL Female -8 AN to Male -6 AN Aluminum Flare Reducer

Angle:

Straight

Fitting End A:

-8 AN Female

Fitting End B:

-6 AN Male

$22.40

/each

$24.23

-7%

Earls |

#425AT9892064ERL

Earls AT9892064ERL Female -6 AN to Male -4 AN Aluminum Flare Reducer

Angle:

Straight

Fitting End A:

-6 AN Female

Fitting End B:

-4 AN Male

$22.36

/each

$24.19

-7%

Earls |

#4259892064ERL

Earls 9892064ERL Blue -6 AN Female to -4 AN Male Flare Reducer

(1)

Angle:

Straight

Fitting End A:

-6 AN Female

Fitting End B:

-4 AN Male

$19.41

/each

$20.99

-7%

Earls |

#4259892120ERL

Earls 9892120ERL Blue -12 AN Female to -10 AN Male Flare Reducer

Angle:

Straight

Fitting End A:

-12 AN Female

Fitting End B:

-10 AN Male

$39.53

/each

$42.76

-7%

Earls |

#425SS991903ERL

Earls SS991903ERL -5 Male, -4 Male Union Reducer, Stainless Steel

Angle:

Straight

Fitting End A:

-5 AN Male

Fitting End B:

-4 AN Male

$41.81

/each

$45.23

-9%

Aeromotive |

#10915681

Aeromotive 15681 -8 AN ORB to -6 AN ORB Swivel Adapter Fitting

Angle:

Straight

Fitting End A:

-8 AN Male o-ring

Fitting End B:

-6 AN Male o-ring

$47.20

/each

$51.92

-9%

Aeromotive |

#10915638

Aeromotive 15638 -10 AN to -8 AN Swivel Union Reducer Fitting

Angle:

Straight

Fitting End A:

-10 AN Male o-ring

Fitting End B:

-8 AN Male o-ring

$34.57

/each

$38.03

Aluminum -12 AN Female to -10 AN Male Reducer Fitting

Speedway Motors |

#472995013

Aluminum -12 AN Female to -10 AN Male Reducer Fitting

(2)

Angle:

Straight

Fitting End A:

-12 AN Female

Fitting End B:

-10 AN Male

$17.49

/each

-7%

Earls |

#4259892106ERL

Earls 9892106ERL Blue -10 AN Female to -6 AN Male Flare Reducer

(2)

Angle:

Straight

Fitting End A:

-10 AN Female

Fitting End B:

-6 AN Male

$25.36

/each

$27.43

Goodridge |

#472995012

Goodridge AN950-12-08D -12 AN Female to -8 AN Male Reducer Fitting

Angle:

Straight

Fitting End A:

-12 AN Female

Fitting End B:

-8 AN Male

$21.99

/each

Aluminum Flare Reducer Adapter, Blue, -4 AN to -6 AN

Speedway Motors |

#6176176

Aluminum Flare Reducer Adapter, Blue, -4 AN to -6 AN

(1)

Angle:

Straight

Fitting End A:

-4 AN Male

Fitting End B:

-6 AN Male

$7.99

/each

-16%

Aluminum Flare Reducer Adapter, Blue, -6 AN to -10 AN

Speedway Motors |

#6176178

Aluminum Flare Reducer Adapter, Blue, -6 AN to -10 AN

(1)

Angle:

Straight

Fitting End A:

-6 AN Male

Fitting End B:

-10 AN Male

$12.99

/each

$15.64

-34%

Aluminum Flare Reducer Adapter, Blue, -6 AN to -12 AN

Speedway Motors |

#6176180

Aluminum Flare Reducer Adapter, Blue, -6 AN to -12 AN

Garage Sale Type:

Discontinued

Angle:

Straight

Fitting End A:

-6 AN Male

$14.44

/each

$22.11

-9%

Aeromotive |

#10915614

Aeromotive 15614 -8 AN to -6 AN Male Flare Union Reducer Fitting

Angle:

Straight

Fitting End A:

-8 AN Male

Fitting End B:

-6 AN Male

$21.37

/each

$23.51

-79%

Goodridge |

#472995112

Goodridge AN951-10-12D Aluminum -10 Female to -12 Male Reducer Fitting

Garage Sale Type:

Discontinued

Angle:

Straight

Fitting End A:

-10 AN Female

$3.68

/each

$18.37

-7%

Earls |

#425AT9892106ERL

Earls AT9892106ERL Female -10 AN to Male -6 AN Aluminum Flare Reducer

(3)

Angle:

Straight

Fitting End A:

-10 AN Female

Fitting End B:

-6 AN Male

$25.36

/each

$27.43

-7%

Earls |

#425AT9893810ERL

Earls AT9893810ERL Female -8 AN to Male -10 AN Aluminum Flare Expander

(1)

Angle:

Straight

Fitting End A:

-10 AN Male

Fitting End B:

-8 AN Female

$26.86

/each

$29.06

Showing 1 - 36 of 43 results

Shop Feedback:

Did you find what you are looking for?

GMC 250 AN Fitting Reducers

Angle

Brand

Availability

Discounts

Price

Customer Rating

Products

Aluminum Flare Reducer Adapter, Blue, -8 AN to -10 AN

Aluminum Flare Reducer Adapter, Black, -8 AN to -12 AN

Earls 991902ERL Blue Anodized -4 AN Male to -3 AN Male Union Reducer

Earls 9892108ERL Blue -10 AN Female to -8 AN Male Flare Reducer

Earls AT915186ERL Straight -8 AN to -6 AN Female Swivel Coupling

Related Articles

Aeromotive 15682 -12 AN to -10 AN Swivel Union Reducer Fitting

Aluminum Flare Reducer Adapter, Black, -8 AN to -10 AN

Aluminum Flare Reducer Adapter, Blue, -10 AN to -12 AN

Aluminum Flare Reducer Adapter, Black, -4 AN to -6 AN

Aluminum Flare Reducer Adapter, Black, -6 AN to -10 AN

Goodridge AN950-10-08D -10 AN Female to -8 AN Male Adapter Fitting

Aluminum Flare Reducer Adapter, Black, -10 AN to -12 AN

Aluminum Flare Reducer Adapter, Blue, -6 AN to -8 AN

Aluminum -8 AN Female to -6 AN Male Reducer Fitting

Earls AT9892108ERL Female -10 AN to Male -8 AN Aluminum Flare Reducer

Earls AT9893034ERL Female -3 AN to Male -4 AN Aluminum Flare Expander

Aluminum Flare Reducer Adapter, Black, -6 AN to -8 AN

Aluminum Flare Reducer Adapter, Black, -3 AN to -4 AN

Earls AT9892084ERL Female -8 AN to Male -4 AN Aluminum Flare Reducer

Earls AT9892086ERL Female -8 AN to Male -6 AN Aluminum Flare Reducer

Earls AT9892064ERL Female -6 AN to Male -4 AN Aluminum Flare Reducer

Earls 9892064ERL Blue -6 AN Female to -4 AN Male Flare Reducer

Earls 9892120ERL Blue -12 AN Female to -10 AN Male Flare Reducer

Earls SS991903ERL -5 Male, -4 Male Union Reducer, Stainless Steel

Aeromotive 15681 -8 AN ORB to -6 AN ORB Swivel Adapter Fitting

Aeromotive 15638 -10 AN to -8 AN Swivel Union Reducer Fitting

Aluminum -12 AN Female to -10 AN Male Reducer Fitting

Earls 9892106ERL Blue -10 AN Female to -6 AN Male Flare Reducer

Goodridge AN950-12-08D -12 AN Female to -8 AN Male Reducer Fitting

Aluminum Flare Reducer Adapter, Blue, -4 AN to -6 AN

Aluminum Flare Reducer Adapter, Blue, -6 AN to -10 AN

Aluminum Flare Reducer Adapter, Blue, -6 AN to -12 AN

Aeromotive 15614 -8 AN to -6 AN Male Flare Union Reducer Fitting

Goodridge AN951-10-12D Aluminum -10 Female to -12 Male Reducer Fitting

Earls AT9892106ERL Female -10 AN to Male -6 AN Aluminum Flare Reducer

Earls AT9893810ERL Female -8 AN to Male -10 AN Aluminum Flare Expander

Popular Parts