My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Earl's Performance AT991103ERL 3/8" NPT Male to Male Pipe Coupling Adapter

Part of: Earl's Performance Aluminum NPT Coupling Fittings

Other options in this family: Earl's Performance AT991101ERL Earl's Performance 991001ERL Earl's Performance 991002ERL Earl's Performance 991101ERL

Manufacturer

Picture for manufacturer Earl's Performance

Part Number

AT991103ERL
11 reviews
Sale Price

$19.36

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Earl's Performance AT991103ERL is a male-to-male pipe coupling adapter featuring 3/8" NPT threads on both ends, designed for connecting two female NPT fittings in hydraulic, fuel, oil, and coolant line applications.

Key Features:

  • Hard anodized aluminum finish provides superior wear and corrosion resistance compared to standard anodizing
  • Durable construction lasts twice as long as traditional anodized fittings
  • 3/8" NPT male threads on both ends for versatile plumbing connections
  • Aggressive, professional appearance for custom builds and performance applications
  • Manufactured in the USA to strict quality standards

Ideal for automotive, racing, marine, and industrial plumbing situations where a reliable, corrosion-resistant NPT coupling is required. The hard anodized coating penetrates the aluminum substrate for exceptional durability in demanding environments.

Products specifications

Adapter NPT Size ( A )

3/8 NPT MALE

Adapter NPT Size ( B )

3/8 NPT MALE

Adapter Type

NPT Nipple

Brand

Earl's

Category

Vehicles, Equipment, Tools, and Supplies

Emission Code

5

Finish

Anodized Black

Material

2024 Aluminum

Part Type

Hydraulic Coupling / Adapter

Product Line

Premium

Product Type

Hose End

Sub Category

Hardware, Fasteners and Fittings

So I left a review already about autoplicity and it was before I even checked when it was going to be delivered. I was happy to see it was already shipped but even more excited and pleased to see that it was only going to take two days to get here! Scheduled for delivery tomorrow! Could not be any happier with this company!

Arrangement of checkout field sets is counter-intuitive. I almost bailed twice.You should consider consulting a UX expert to streamline your user experience.

Found Autoplicity through price searching. Best price, easy to navigate site, quick service. Bookedmarked for future use!

Very easy ordering

Cool

great

best site on the web for any automotive parts.

Excellent service. Fast shipping and email confirmation.

Easy order method from website.... now we wait to see how delivery goes...

great prices and free shipping as well as no tax!

Camaro Lug Nuts, They exactly what I wanted and they will fit like a glove, this I know because there are 5 of them on my car, so I ordered the same ones. very reasonable price. fast ship. All good, Thanks.

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy