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Earl's Performance 991903ERL -5 Male to -4 Male Union Reducer Fitting

Part of: Earl's Performance Ano-Tuff Aluminum AN Union Reducer Fittings

Other options in this family: Earl's Performance 991912ERL Earl's Performance AT991912ERL Earl's Performance 991918ERL

Manufacturer

Picture for manufacturer Earl's Performance

Part Number

991903ERL
8 reviews
Sale Price

$2.52

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Earl's Performance 991903ERL is a precision-engineered union reducer fitting designed to connect -5 AN male to -4 AN male fittings in high-performance plumbing applications. This adapter is an essential component for custom fuel, oil, and fluid systems where line size transitions are required.

Key Features:

  • Constructed from lightweight 6061-T6 aluminum for excellent strength-to-weight ratio
  • Bare aluminum finish ready for anodizing or custom finishing
  • Precision-machined threads ensure leak-free connections
  • Reduces -5 AN male connection to -4 AN male connection
  • Manufactured in the USA to strict quality standards
  • Ideal for racing, motorsports, and custom automotive applications

Earl's Performance fittings are engineered to meet the demanding requirements of professional racing and high-performance street applications. This union reducer allows you to seamlessly adapt between different AN fitting sizes while maintaining system integrity and flow characteristics.

Products specifications

Adapter AN Size ( A )

5 AN MALE

Adapter AN Size ( B )

4 AN MALE

Adapter Type

AN Male Union

Brand

Earl's

Category

Plumbing AN Fittings and Hose

Emission Code

5

Finish

Anodized Blue

Material

2024 Aluminum

Product Line

Premium

Product Type

AN Reducer

Special Offers

Summer Sale

Was NICE AND EASY TO FIND IT.

Wow!! I came across Autoplicity while searching for a fuel pump for my Trans-Am. Not only did they have the cheapest price for the part, but they also had extremely reasonable shipping cost. Most websites claim to have free shipping but it seemed the cost of shipping was added to the cost of their part. Then I find out my order was processed and shipped within one business day!! I'll definately be bookmarking Autoplicity's home page!! Thanks!!

Bought some wire looms for my Chevy from them. Great price, service, and shipping speed!

The item arrived fast and in good condition. There however seems to be a glitch with the scale the first time we weighed something. After we shut it off and then back on it seemed to be OK.

I ordered a Grant 1103 Steering Wheel, Order Number: 16767. Great prices, quick shipping, good customer service, an all around deal. Thank you.

The part I purchased had the lowest price I could find online anywhere.. Simple transaction and fast shipping.. Ordered on a Monday and delivered by Friday..

Great prices and fast delivery.

best prices around !! Shipping was FAST !

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