Ensure your GM automatic transmission operates at safe temperatures with high-quality transmission cooling lines from Advance Adapters. These transmission cooler lines to the radiator are a critical part of any transmission cooling system, moving hot fluid away from the transmission, through the radiator or cooler, and back again for consistent performance.
Proper cooling lines are essential not only for daily driving, but also for off-road, towing, and all-terrain use where heat buildup can quickly lead to transmission failure.
GM Automatic Transmission Cooling Lines
Advance Adapters offers universal transmission cooler lines designed as direct-fit replacements for several popular GM automatic transmissions. These lines are an OEM-style solution for:
- GM TH350
- GM TH400
- GM 700R4 / 4L60
With the appropriate fittings, these transmission cooling lines can also be adapted to custom builds, drivetrain swaps, and off-road conversions.
Each line features:
- PTFE (Teflon) inner tubing for high-temperature resistance
- Stainless steel braided outer cover to prevent rust, abrasion, cracking, and punctures
- Pre-crimped hose ends and fittings for secure, leak-free installation
At 7 feet in length, these transmission cooler lines to radiator provide ample reach without excess slack, allowing clean and flexible routing.
Ideal for Replacements & Custom Builds
These universal transmission cooler lines are a cost-effective solution for:
- Replacing damaged or rusted factory cooler lines
- Upgrading cooling systems during drivetrain conversions
- Custom off-road and performance builds
Always review the Specifications tab to confirm transmission compatibility before ordering.
Transmission Cooler Line Features
- Stainless steel braided cooling lines resist corrosion and impact damage
- Kit includes two (2) 7-foot transmission cooling lines
- Compatible with stock fittings on TH350, TH400, and 700R4 transmissions
- Designed for flexible routing to radiator or external coolers
Kit Contents
- Quantity: Two (2) transmission cooler lines
- Length: 7 ft each
- Hose Type: Stainless steel braid with PTFE inner tubing
- Connectors: -6 AN female pre-crimped hose ends
- Fittings Included:
- Two (2) 90° ¼" NPT to -6 AN male fittings
- Two (2) 5/16" inverted flare to -6 AN male fittings (TH350/TH400/700R4)
Bill Of Materials
