12" Finned Aluminum Dual Pass Heat Sink Transmission Cooler

• Dual pass heat sink design cools transmission fluid, no airflow needed

• Most compact size in this family for tight mounting locations

• Universal fit with 1/4" NPT female threads, hose fittings included

• 12" tube length; confirm 14 1/4" x 3 1/4" overall footprint fits

Cooler transmission fluid helps prevent damage under demanding conditions, supports more reliable shifting, and extends automatic transmission life. This dual pass heat sink transmission cooler is built to deliver that benefit without requiring airflow, thanks to its compact finned aluminum design — making it the most space-efficient option in this cooler family for tight mounting locations.

This cooler fits any application using 1/4" NPT hose fittings, with 1/4" NPT female threads on both inlet and outlet. Two hose fittings are included. Fluid capacity is 14 oz.

Before installing, confirm your available mounting space against the full 14 1/4" x 3 1/4" overall dimensions — the "12"" in this cooler's name refers to tube length, not the total footprint. Also verify your hose fitting size matches 1/4" NPT before ordering.

Applications
Universal fit for any application using 1/4" NPT hose fittings; used for automatic transmission cooling in space-constrained mounting locations, and as a supplemental or replacement transmission cooler.

Sizing
12" tube length, 14 1/4" x 3 1/4" overall dimensions, 2 cooling rows, 14 oz fluid capacity, 1/4" NPT female threads (inlet and outlet).

Does this cooler need airflow to work?
No — this cooler uses a heat sink design that does not require direct airflow, allowing it to be mounted in a variety of locations.

Is 12" the total length I need to plan mounting space for?
No — 12 inches refers to the cooler's tube length. The complete mounting footprint is 14¼" x 3¼", so use those dimensions when checking available installation space.

What's the difference between this and the 18" or 24" versions?
This 12-inch version has the smallest overall footprint and lowest fluid capacity at 14 oz, making it well suited to tighter mounting spaces. The 18-inch and 24-inch versions provide greater capacity where additional space is available.

What hose fitting size does this cooler use?
The inlet and outlet use 1/4" NPT female threads. Two hose fittings are included.

Can this be used as a supplemental cooler, or does it replace the factory one?
Either — it can be installed as a supplemental transmission cooler alongside an existing cooler or used as a replacement cooler, depending on your application.