VelaStrides Transmission Oil Cooler Kit — 4-Pass Aluminium Cooler (Black), 13.2" x 5" x 0.75", 5/16" Hose Kit

The VelaStrides 4-pass aluminium transmission oil cooler kit is a compact, high-efficiency radiator assembly designed to lower automatic transmission fluid temperatures for demanding street and track use.

This transmission cooler pairs a 4-pass tube-and-fin core with internal turbulators and a durable T-6061 aluminium construction to deliver reliable heat rejection in a lightweight package. Sized at 13.2" x 5" x 0.75", the unit mounts where airflow is available and connects to standard 5/16" ID cooler lines. The kit includes hoses, clamps, mounting hardware and foam pads to simplify installation on many vehicles—especially modified cars and light trucks that see spirited driving or towing.

How does this cooler reduce transmission fluid temperatures?

The 4-pass design forces fluid through multiple channels, increasing contact time with the aluminium tubes and fins while built-in turbulators promote internal mixing. That combination improves heat transfer from the fluid to the external fins where moving air carries heat away.

• Four-pass core increases fluid path and heat extraction.
• Turbulators inside each tube enhance internal fluid mixing.
• Thin aluminum fins create a large surface area for air cooling.
• Suitable for airflow locations like behind the grille or in front of the radiator.

What are the core materials, size limits, and operating specs?

The cooler is CNC-formed from T-6061 aluminium for light weight and corrosion resistance. Its compact footprint makes it usable in tight engine bays while retaining solid durability under pressure and temperature extremes.

• Core dimensions: 13.2" x 5" x 0.75" (compact profile).
• Operating pressure: 145 psi; burst pressure: 900 psi.
• Temperature range: -40°F to 257°F for typical ATF environments.
• Finish: black anodized or powder-coated exterior for added protection.

Will this fit my vehicle and how easy is installation?

This kit is made to work with most vehicles that use 5/16" (8mm) transmission cooler lines, and it ships with the common fittings and hardware needed for a bolt-in style install. Measure available space and line sizes before purchase to ensure compatibility.

• Compatible with 5/16" ID transmission cooler lines—measure first.
• Includes 4 hoses (5/16"), hose clamps, mounting rods, clips, foam pads, and adapter.
• Best mounted where unobstructed airflow is present and debris is minimal.
• Basic hand tools required; professional installation recommended if unfamiliar with fluid systems.

How much cooling improvement can I expect and what applications suit it?

Cooling performance depends on vehicle load, airflow, and placement; in many installations this type of external cooler can reduce transmission fluid temperatures by a significant margin—frequently tens of degrees under heavy use. It’s especially useful for performance street cars, track cars, and vehicles that tow or haul regularly.

• Designed for modified street vehicles, track use, towing, and heavy-load conditions.
• Can operate as a bypass or supplemental cooler to your factory system.
• Performance gains tied to correct placement for unobstructed airflow.
• Helps stabilize ATF temperature during repeated high-load cycles.

Who is this for: The VelaStrides 4-pass transmission oil cooler kit is aimed at car owners and mechanics who want a compact, robust secondary cooler to lower ATF temperatures during spirited driving, towing, or track sessions. Installers who need a universal-fit solution for vehicles using 5/16" cooler lines will appreciate the included hoses and mounting hardware, while builders of modified street cars and light-duty trucks will value the aluminum core’s balance of weight, strength, and thermal performance.