Earls Straight Transmission Adapter -6 Male to 1/4-18 NPSM Male - Long (Rear)

Earls Transmission Adapter, One Adapter w/ O-Ring Seal Fits 4L80E (Some 1997 & Later) w/ 1/4-18 threads - Long (Rear), Nickel Plated Steel

PART# 961981ERL

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There are always clearance challenges when doing an engine swap. One of these is routing the transmission cooler lines off the side of the transmission while cleaning the trans tunnel. Earl's makes this easier with their line adapters. Integrating into the GM transmission and adapting to AN lines allows additional clearance and freedom that the original hard lines cannot. Adapters are available for the popular GM Transmissions 4L80E (Fits Transmissions w/ 1/4-18 NPSM Threads Long/Rear). Order Two adapters (one short for the front and one long for the rear to match the threads on your transmission). The thread size varies depending on the application.


  • Nickel Plated Steel Construction
  • High Pressure Capabilities
  • Available for Any Plumbing Situation And Many Custom Applications.


Adapter AN Size ( A )6 AN MALE
Adapter NPT Size ( B )1/4-18 NPSM MALE
Adapter TypeTransmission Cooler
Product TypeTransmission Cooler
Part Number961981ERL

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        Some parts are not legal for use in California or other states with similar regulations.