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FJC 4042 #12 GM Dual Fitting O-Ring for A/C Systems

Manufacturer

Picture for manufacturer FJC

Part Number

4042
11 reviews
Sale Price

$2.27

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The FJC 4042 is a high-temperature HNBR (Hydrogenated Nitrile Butadiene Rubber) O-ring designed specifically for #12 GM dual fittings in automotive air conditioning systems. This precision-manufactured seal ensures reliable leak prevention and optimal performance in mobile A/C applications.

Key Features:

  • High-temperature HNBR construction for superior heat resistance and durability
  • Designed for #12 GM dual fittings
  • Compatible with ATCO #10 compression fittings for Nissan suction/discharge ports (York reciprocating compressors)
  • Precision-engineered for secure, leak-free sealing in automotive A/C systems
  • Resistant to refrigerants and automotive fluids

FJC is a trusted manufacturer and worldwide distributor of quality automotive air conditioning parts and service accessories. Each O-ring is crafted with premium materials and world-class craftsmanship to withstand demanding professional and DIY applications.

My order #4383 was fulfilled quickly and shipped in a timely fashion. The price was super competative and the web site is user friendly. I will be back for more I'm sure! Shipping should be free for orders over a certain price, say $50?!?!

The order was shipped promptly, and everyone was is good working condition. I will order from here again!!

easy - nice to be able to pay via amazon. Quick delivery, all as promised. Product: Titan SideKick tank. Tank and ground seem well made. Shape allows mounting with minimal interference with bed layout. My PowerTrax bed cover moves freely above the SideK

it was one of the most easiest sites to use and the order shipped really quick. will buy from again.

great shopping,hope item is the same

Autoplicity did a good job getting my order to me fast. Product looks like it is in good condition.

Quick Order Process!

Great Prices and Fast Shipping!

Good so far.

Easy to check out with Amazon!

Good price

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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