Bowler - Transmission Fluid Cooler Fitting (-6AN Male 1/4 NSPT Thread)

Aluminum Anodized Cooler Line Fittings

These high-quality fittings are made of durable aluminum with a black anodized finish. They are designed to fit any transmission port with a 1/4" NSPT thread, converting it to a -6AN male fitting.

Key Features:

Male straight pipe to male -6AN fitting

Compatible with most common domestic transmissions

Includes two fittings and brass washers for a secure seal

Recommended use of Teflon paste during installation

Compatible Transmissions:

✅ GM Transmissions:

Aluminum Powerglide

TH350 / 350C

200 / 200-4R

700-R4

4L60E / 4L65E

4L80E (1991-1996) (Front cooler line ports only; rear port on 1996+ requires a special 4L80E fitting)

✅ Ford Transmissions:

AOD

AODE

4R70W

This fitting can also be used in other applications where a 1/4" NSPT to -6AN male fitting is required.

Important Fitment Information:

Before purchasing, it is buyer’s responsibility to verify the correct fitment. Remove the stock adapters and measure the thread diameter:

9/16" - 18 threads → Not compatible with this fitting

0.521" diameter (1/4" NSPT) → This fitting is required (most common option