Aftermarket 130-7489-02CN Onan Heat Exchanger
Premium Seakamp Marine Heat Exchanger – Direct Replacement for Onan 130-7489-02
Keep your Onan marine generator running at peak performance with the Onan 130-7489-02 Heat Exchanger Replacement, a high-quality, USA-made Seakamp component engineered for reliability, cooling efficiency, and long service life. Designed as a direct replacement for Onan part 130-7489-02, this heat exchanger ensures a perfect fit and seamless installation.
Fully compatible with Onan generators using part number 130-7489-02. Eliminates guesswork and guarantees proper fitment.
This premium heat exchanger is used on the following Onan generator models:
MDKDK
MDKDL
MDKDM
MDKDN
Designed specifically for these units to restore factory cooling performance.
Built from durable copper-nickel (CuNi), the preferred material for marine cooling systems thanks to its:
Superior corrosion resistance
Long-lasting performance in saltwater environments
Enhanced heat transfer efficiency
Manufactured by Seakamp, a trusted American brand known for precision-built, dependable marine coolers and heat exchangers.
Comes with a 12-month warranty for added confidence and protection.

