Transmission Cooler Manifold

Transmission Cooler Manifold - #185-1000

Engineered for high-performance GM 6-speed, 8-speed, and 10-speed transmissions, our Billet Aluminum Manifold is the definitive solution for managing fluid temperatures. Whether you're towing heavy loads or hitting the track, this manifold allows you to ditch restrictive factory lines and move to a high-flow -6AN setup with ease.

CNC-machined from a solid block of 6061-T6 Billet Aluminum, this manifold features a specialized internal flow path. With 45-degree internal transitions that exit into parallel straight fittings, you get the best of both worlds: maximum fluid velocity and a clean, low-profile exit that makes hose routing in tight transmission tunnels a breeze.

The GSI Advantage

• Precision Fitment: Specifically designed for the GM 6L80, 6L90, 8L90, 10L80, and 10L90 series transmissions.

• Flow-Optimized Design: The internal 45-degree geometry minimizes fluid restriction and "dead spots" common in standard block manifolds.

• Billet Strength: 6061-T6 aluminum offers superior structural integrity and heat dissipation over cast-aluminum or plastic OEM components.

• Stealth Finish: Hard-anodized in deep black for a professional look and long-term protection against corrosion and road debris.

• Industry Standard Fittings: Equipped with -6AN (9/16-18 thread) male fittings for easy integration with high-quality aftermarket braided lines.

Technical Specifications

At GSI Machine & Fabrication, we offer a one-year warranty on all manufactured parts, covering defects upon inspection. However, we are not liable for personal or property damages resulting from misuse of our products. Note that warranties for non-manufactured parts, such as shocks or ball joints, must be handled directly with the part’s manufacturer.

Orders may be canceled before shipment, except for special-order and custom items, such as chassis products and air ride suspension. Refunds for eligible returned items will exclude shipping costs and may incur additional fees. For cancellations or issues with orders, contact our customer support at 1 (877) 951-1890 or sales@gsimfab.com.

Customers are responsible for all customs fees, duties, and taxes on international orders. Once your package is shipped, we are not liable for damage, theft, or loss during transit. Please inspect your delivery promptly and report any issues within 48 hours. For international shipments, local policies may cause delays, and additional documentation may be required. Always ensure shipping details are accurate to avoid additional costs.