AN-NPT Fittings and Components
Circle Track AN NPT Fittings and Components at JJ Motorsports
AN-NPT fittings and components bridge the gap between different thread standards, offering flexibility in your fluid system design. Known for their versatility, they ensure a snug fit and efficient flow. Pair them with additional high-performance system fittings to create a strong, fully integrated setup.
Shop trusted brands like Fragola for push-lock options, Aeroquip for socketless fittings. Explore related categories such as High-Performance System Fittings for complete fluid system solutions or Circle Track Hoses for matching lines.
Top Circle Track AN NPT Fittings and Components
- Aeroquip Fuel Cell Bulkhead Fitting (8 AN) Kit with Sealing Washers Nut Aluminum Black – Kit includes bulkhead fitting, nut, and sealing washers. Straight 8 AN male to 8 AN male bulkhead, aluminum, black anodized.
- Aeroquip Fuel Cell Bulkhead Fitting (10 AN) Kit with Sealing Washers Nut Aluminum Black – Kit includes bulkhead fitting, nut, and sealing washers. Straight 10 AN male to 10 AN male bulkhead, aluminum, black anodized.
- Radiator Neck Fitting - 1/8" NPT to 1/4" Hose Barb Brass Adapter for Automotive Cooling Systems – Provides a secure connection between 1/8-inch NPT male thread and 1/4-inch hose barb for automotive cooling systems.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Earls 8an Male to 3/8 Tube Adapter Fitting AT165086ERL
EARLS
$25.83When plumbing your fuel system, cooling lines, or other critical fluid pathways, adapter fittings are non-negotiable—they ensure leak-free connections between different line standards without compromising flow or durability. The Earls 8AN Male to 3/8...EARAT165086ERL- SKU:
- EARAT165086ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- AT165086ERL
$25.83 -
Earls 1/4 Alum Tubing Adapter 6an Male AT165064ERL
EARLS
$21.55When you're routing fuel or coolant lines through a custom build, adapter fittings are non-negotiable—they ensure leak-free connections between different tubing standards. This Earls 1/4 aluminum tubing adapter bridges the gap between 1/4" aluminum...EARAT165064ERL- SKU:
- EARAT165064ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- AT165064ERL
$21.55 -
Earls 6an Male Alum to 5/16in Tubing Adapter Ano-Tuff AT165056ERL
EARLS
$19.52When plumbing a fuel or fluid system, mismatched fitting sizes create leaks, vibration damage, and reliability issues—this adapter eliminates those problems. Earls' Ano-Tuff aluminum construction resists corrosion and maintains a clean appearance in...EARAT165056ERL- SKU:
- EARAT165056ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- AT165056ERL
$19.52 -
Earls #6 Male to 3/8in Alum Tubing Adapter Black AT165006ERL
EARLS
$18.23If you're building a custom fuel or coolant system, you need fittings that won't compromise flow or introduce leaks at critical connection points. This Earls adapter bridges the gap between industry-standard AN male ports and 3/8-inch aluminum tubing,...EARAT165006ERL- SKU:
- EARAT165006ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- AT165006ERL
$18.23 -
Earls Banjo 4an > 3/8in 997643ERL
EARLS
$18.66If you're running a custom fuel or coolant system, adapter fittings are non-negotiable—and this Earls banjo adapter handles the transition from 4 AN hard lines to 3/8" banjo connections with zero leakage risk. Steel construction ensures durability under...EAR997643ERL- SKU:
- EAR997643ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- 997643ERL
$18.66 -
Earls 4an 10mm Brake Adaptor 997641ERL
EARLS
$18.66If you're running a custom brake line setup or converting between metric and AN fittings, this adapter is essential for reliable pressure transitions without leaks. The Earls 4AN 10mm Brake Adaptor provides a direct, steel-constructed solution for...EAR997641ERL- SKU:
- EAR997641ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 997641ERL
$18.66 -
Earls 3an 10mm Brake Adapter 997631ERL
EARLS
$14.31If you're custom-fabricating a brake system or upgrading to braided stainless steel lines, this adapter is essential for connecting 3 AN fittings to OEM 10mm banjo ports without modification. The straight configuration ensures clean routing in tight...EAR997631ERL- SKU:
- EAR997631ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 997631ERL
$14.31 -
Earls Banjo #4 To 7/16 997604ERL
EARLS
$21.50When you're running a high-performance fuel or brake system, reliable adapter fittings are non-negotiable. This Earls banjo adapter delivers a clean, space-efficient connection between your 4 AN hard lines and 7/16-inch banjo bolts, eliminating leaks and...EAR997604ERL- SKU:
- EAR997604ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 997604ERL
$21.50 -
Earls Banjo -3 To 3/8 997603ERL
EARLS
$14.31If you're running a fuel system, hydraulic line, or brake circuit with mixed fitting sizes, adapter fittings are non-negotiable—they ensure proper flow, eliminate leaks, and keep your system sealed under pressure. The Earls Banjo -3 To 3/8 adapter...EAR997603ERL- SKU:
- EAR997603ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 997603ERL
$14.31 -
Earls Carb. Adapter 991954ERL
EARLS
$17.21If you're building or upgrading a power steering system, you need adapters that won't leak under pressure and deliver reliable performance lap after lap. The Earls Carb. Adapter 991954ERL provides a precision connection between your 6 AN line and 14 mm...EAR991954ERL- SKU:
- EAR991954ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- 991954ERL
$17.21 -
Earls #8 > 7/8-20 Dual Feed Hl 991948ERL
EARLS
$18.66If you're running a Holley carburetor on a high-performance engine, fuel supply consistency is non-negotiable. This Earl's dual-feed inlet fitting ensures proper fuel distribution to both circuits of your carb, eliminating lean conditions and fuel...EAR991948ERL- SKU:
- EAR991948ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 991948ERL
$18.66 -
Earls #6 > 5/8-18 Power Steeri Alum Fitting 991947ERL
EARLS
$14.35If you're upgrading your power steering system or plumbing custom hydraulic lines, you need fittings that won't leak under pressure and can handle the vibration of track conditions. This Earls aluminum fitting provides a reliable, straightforward...EAR991947ERL- SKU:
- EAR991947ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 991947ERL
$14.35 -
Earls #6 > 1/2-20 Fuel Pump 991946ERL
EARLS
$14.35When fuel system integrity is non-negotiable, precision fittings make all the difference. This Earls adapter ensures a reliable, leak-free connection between your #6 AN fuel line and 1/2-20 inverted flare fuel pump outlets—critical for maintaining system...EAR991946ERL- SKU:
- EAR991946ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 991946ERL
$14.35 -
Earls #6 > 7/8-20 Dual Feed Hl 991943ERL
EARLS
$17.21If you're running a Holley carburetor and need a reliable fuel inlet solution, this Earl's fitting delivers the precision plumbing your fuel system demands. The dual-feed design ensures consistent fuel delivery under all operating conditions, while the...EAR991943ERL- SKU:
- EAR991943ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 991943ERL
$17.21 -
Earls #6 > 9/16-24 Holley 991942ERL
EARLS
$17.21If you're running a fuel system that combines different fitting standards, this Earls adapter is essential for achieving a leak-free, reliable connection. The 6 AN to 9/16-24 conversion allows seamless integration between modern fuel lines and Holley...EAR991942ERL- SKU:
- EAR991942ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 991942ERL
$17.21 -
Earls #6 > #8 Union 991912ERL
EARLS
$12.89When you're running high-flow fuel or coolant systems, mismatched line sizes create unnecessary restrictions and potential leak points. This Earl's union adapter solves that problem with a precision-machined aluminum body that delivers leak-free...EAR991912ERL- SKU:
- EAR991912ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 991912ERL
$12.89 -
Earls Female 1/8 Npt T 991701ERL
EARLS
$20.09When you're running fuel, oil, or coolant lines through a custom engine bay, you need reliable distribution points that won't leak under pressure. This Earls Female 1/8 NPT T-adapter gives you a compact, three-way junction that handles high-flow...EAR991701ERL- SKU:
- EAR991701ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- 991701ERL
$20.09 -
Earls 1/8 Npt 90 Deg Elbow 991401ERL
EARLS
$14.35Fluid line routing requires precision fittings that won't leak under pressure or vibration. This Earls 90-degree elbow adapter lets you navigate tight engine bays and complex plumbing layouts without compromising flow or safety. Whether you're building a...EAR991401ERL- SKU:
- EAR991401ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 991401ERL
$14.35 -
Earls 1/2 X 1/4 Npt Bush 991205ERL
EARLS
$15.79If you're building a custom cooling or fuel system, you need fittings that won't leak under pressure. This Earls adapter bush seamlessly transitions between different NPT port sizes, allowing you to use standard components without custom fabrication. The...EAR991205ERL- SKU:
- EAR991205ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- 991205ERL
$15.79 -
Earls 3/8 X 1/8 Nipple Bush 991203ERL
EARLS
$12.89When you're building a custom fuel, coolant, or brake line system, adapter fittings are non-negotiable—they ensure leak-free connections between different port sizes and prevent costly failures on the track or street. The Earls 3/8 X 1/8 Nipple Bush...EAR991203ERL- SKU:
- EAR991203ERL
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- 991203ERL
$12.89
