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Derale

DERALE Dyno-Cool Aluminum Trans Cooler

MPN: 12903 Catalog #: 001496559 Category: Fluid Coolers Check Vehicle Fitment

Product Details

Derale 12903 Dyno-Cool Series 6000 Transmission Cooler

Fluid Cooler - Dyno-Cool - 15.250 x 7.500 x 0.750 in - Tube Type - 11/32 in Hose Barb Inlet / Outlet - Fitting / Hardware / Hose - Aluminum - Natural - Automatic Transmission - Kit

Auto Trans Oil Cooler

Dyno-Cool Series 6000 Transmission Cooler

Dyno-Cool Series 6000 Transmission Cooler; 6 Pass 15 in. Cooler Style; Aluminum; 7-1/2 in. Height; 15-1/4 in. Width; 3/4 in. Depth; 6-1/4 in. Inlet Dim;

This universal all-aluminum transmission cooler is perfect for todays highly-stressed mid to full-size car and mid-size truck automatic transmissions. Featuring embossed turbulators inserted into full 1/2 tubing to agitate fluid and louvered cooling fins, it extends transmission life by helping to prevent heat-related transmission failures while improving shift performance. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16 transmission cooler lines.

Derale Performance

Fluid Cooler - Dyno-Cool - 15.25 x 7.5 x 0.75 in - Tube Type - 11/32 in Hose Barb Inlet / Outlet - Fitting / Hardware / Hose - Aluminum - Natural - Automatic Transmission - Kit

  • Prevents Heat Related Transmission Failures
  • Extends Life Of Transmission
  • Improves Transmission Performance
  • Embossed Turbulators Inserted In Each Tube Agitate Fluid
  • 6 Pass Cooler Design
  • 1/2 in. Aluminum Tubing Expanded Into Aluminum Cooling Fins
  • 11/32 in. Hose Barb Inlets
  • Rated At 18500 GVW
  • Includes Complete Hardware Kit

This universal all-aluminum transmission cooler is perfect for todays highly-stressed mid to full-size car and mid-size truck automatic transmissions. Featuring embossed turbulators inserted into full 1/2 tubing to agitate fluid and louvered cooling fins, it extends transmission life by helping to prevent heat-related transmission failures while improving shift performance. This kit comes with a complete transmission cooler hardware kit to easily install onto vehicles with 5/16 transmission cooler lines.

Derale Performance

  • Gross Vehicle Weight: 18500 lbs.

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Product Specs

Brand
Derale
Part Number
12903
Catalog Number
001496559
Product Line
Fluid Coolers
Category
Cooling
Type
Fluid Coolers
UPC / Barcode
083277129032
Length
18.50 in
Width
8.00 in
Height
2.10 in
Weight
2.35 lb
Ship Alone
No
Air Restricted
No

Shipping & Availability

Current status 4 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

Inventory shown: 4 available as of 6/4/2026.

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