Mazda RX7, FC S5, Dual Pass, 89-92, 48mm

HH Series 48mm Radiator Core

Features:

• Precise Tube and Fin Alignment: Construction under strict quality control and solid boxing result in tubes with optimal coolant flow and fins with highly efficient heat transfer.
• Nocolok Brazing: Tubes, Fins, Headers, and Brackets are brazed in a state-of-the-art Nocolok furnace, bonding all components to resist damage from vibration, road debris, and the elements.
• Billet Filler Neck: Precision machined billet filler necks are incorporated on each Koyo radiator for strength, durability and better sealing.
• OE Specific Mounting: Koyo incorporates application-specific mounting locations for all fan shrouds, inlet/outlet hoses and top/bottom mounting pins, ensuring quick and pain-free installs.
• Hand Crafted Heliarc Welds: Each Koyo Alloy Race Radiator is Heliarc welded individually by hand. This creates the strongest aluminum to aluminum bond to mate all components.

Fitment: 1989-1992 Mazda FC RX-7 S5 13B and 1989-1992 Mazda FC RX-7 S5 13BT

Note: Automatic vehicles will require external transmission cooler.

Tech Notes:

• Not compatible w/ OEM intake snorkle, requires minor trimming of the OEM fan shroud.
• Use OEM side brackets. OEM brackets are Series 4 or Series 5 specific.