MSD External Relay Starter, 65 amp

The Heavy Gauge Connectors are ideal for electric fans, fuel pump wiring or high current solenoids.

PART# 4390

$69.30   Suggested Retail
$62.37   Your Price
Free Shipping on orders over $100*
In Stock  


Need a relay that can handle serious current? The MSD Heavy Duty Relay will support up to 65 amps which is perfect for high performance nitrous solenoids or fuel pumps. It is constructed to lock out moisture and can live in racing and underhood environments thanks to the stainless steel mount.


Emission Coden
WarningCalifornia Proposition 65

Tech Resources


WARNING FOR 4390: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

*Free Shipping & Handling only offered to the continental US on orders over $100.

Some parts are not legal for use in California or other states with similar regulations.