Tri-Pass 3-Core Radiator - 66-77 Bronco - Copper/Brass, Trans Cooler, SBF V8 SKU: 501350

Early Bronco 3-Core Tri-Pass Radiator w/ Trans Cooler | Ford 289 302 351W

Factory Look and Fitment meets Modern Performance Upgrades

Upgrade your cooling system with this 3-Core Tri-Pass Radiator for 1966–77 Ford Broncos with 289, 302, or 351W V8 engines. Designed as a high-efficiency replacement for the factory radiator, it fits directly into your stock 3-core mounts, maintaining the same fan clearance as the stock radiator. Constructed from copper and brass just like OEM, this radiator features our advanced Tri-Pass technology, which routes coolant three times through the core before returning to the engine—greatly improving heat dissipation and overall cooling performance. A built-in transmission cooler is included for automatic applications and can be left plugged for manual or remote cooler setups. Brass drain plug included.

• Tri-Pass Cooling Technology – Coolant passes three times through the core for maximum cooling efficiency

• Fits Stock 3-Core Mounts – Direct bolt-in replacement for factory-style V8 radiators in 66–77 Broncos

• Built-In Transmission Cooler – Ideal for automatic transmissions, or can remain plugged for manual setups

• Copper/Brass Construction – Durable, efficient materials with excellent heat dissipation

• Includes Drain Plug – Brass radiator drain plug included for easy maintenance

• Compatible with 289/302/351W V8s – Designed for factory small block Ford V8 engine configurations

Why opt for the WILD HORSES Tri-Pass Radiator System?

Experience a serious cooling upgrade with our Tri-Pass Radiator Cooling System—where performance meets smart engineering. Unlike traditional single-pass radiators that route coolant across the core just once, our Tri-Pass system forces coolant to travel across the radiator three separate times before returning to the engine. This extended path increases coolant-to-fin contact time, which results in significantly improved heat transfer and cooling efficiency. Whether you're running a mild V8 or a high-output build, crawling trails or cruising in summer heat, the Tri-Pass design keeps engine temps stable and performance consistent. Combined with durable copper/brass construction and an optional built-in trans cooler, it’s a must-have upgrade for any Bronco owner serious about long-term reliability and cooling power.

Tri-Pass Cooling Technology – Key Benefits

• Enhanced Cooling Efficiency – Forces coolant to flow through the radiator three times for increased heat dissipation

• Greater Coolant Contact – Extended path ensures more coolant surface area is exposed to cooling fins

• Reduced Engine Temperatures – Keeps V8 engines running cooler under heavy loads, off-roading, or hot climates

• Improved Performance Stability – Maintains consistent operating temperatures for better engine reliability

• Ideal for Modified Broncos – Perfect for high-performance or upgraded engine builds that generate more heat

• No Added Complexity – Delivers big gains in cooling with the same bolt-in ease as a stock replacement