Skunk2 Alpha Radiator Honda Civic EF / CRX (1988-1991) Half Core or Full Size

Whether you're building a high-revving track weapon or a swapped street machine, Skunk2's Alpha Series Radiators are the ultimate cooling solution for your '88–'91 Honda Civic or CRX. Available in both full-size and half-core configurations, these all-aluminum radiators deliver unmatched cooling efficiency, sleek styling, and drop-in fitment—no mods needed.

Fitment Information

• Honda Civic (1988, 1989, 1990, 1991)
  • Base, DX, EX, LX, Si
• Honda CRX (1988, 1989, 1990, 1991)
  • DX, HF, Si

Note

• Not Compatible w/ Automatic Transmission Cooling System.
• Due to the increase in size, it may be necessary to modify the hood for proper radiator cap clearance. Some engine swap applications may require custom radiator hoses and/or cooling fans. 

Specs & Features

• Two Options Available: Full-Size or Half-Core for customized cooling and fitment
• High-Performance Build: Lightweight all-aluminum construction with TIG-welded, polished end tanks
• Cooling Efficiency: 100% brazed dual-core with high-efficiency multi-louvered fins
• Engineered for Swaps: Large 1.25" inlet/outlet to support high-output K-series, B-series, or turbo setups
• Complete with Skunk2 Radiator Cap: High-pressure cap included for optimized performance
• Direct Bolt-On: True plug-and-play fit with OEM fan and shroud compatibility
• Street & Track Ready: Built tough for spirited street driving and hardcore racing
  

Product Description

Upgrade your cooling game with the Skunk2 Alpha Series Radiator, precision-engineered for the 1988–1991 Honda Civic EF and CRX. Designed to outperform the factory radiator in every way, the Alpha Series is offered in full-size for maximum surface area or a compact half-core version perfect for engine-swapped builds where space is tight.

Both versions boast 100% brazed aluminum dual-core construction, polished TIG-welded end tanks, and Skunk2’s signature embossed Alpha branding—combining high performance with race-inspired aesthetics. The oversized 1.25” inlet and outlet allow for seamless integration with high-flow cooling systems and larger radiator hoses, making these radiators ideal for K-swaps, B-swaps, or boosted builds.

High-efficiency multi-louvered fins maximize airflow, ensuring that your engine stays cool under extreme loads, while the included high-pressure Skunk2 radiator cap helps raise the boiling point of your coolant for superior thermal control. Whether you're chasing PBs at the track or just want your daily to run cooler and cleaner, Skunk2’s Alpha Radiator delivers.