Flame Arrestors & Accessories - Flame Arrestors - EFI

496 Magnum Flame Arrestor with Vent Tube

Both the 8.1 Liter 496 magnum and HP 500 EFI use throttle bodies that are designed to accept clamp-on filters. Although due to size constraints K&N has developed these oval shaped clamp-on flame arrestors to increase the amount of air available for these engines. The shape of this unit allows it to fit under the factory 496 engine cowling.

"SS" Super Sport Series Flame Arrestor For MerCruiser 454/502 Magnum MPI 

Hardin Marine and K&N Engineering have teamed up to bring you an affordable entry level performance filter/flame arrestor kit that bolts directly to your Mercury Magnum series engine throttle body. The expanding shape of this intake assures increased air speed, something that block-like aluminum adapters can't do. Just clamp on the K&N flame arrestor and you're ready to go. Serpentine and V-Belt Engine Compatible.

Note: These clamp-on filter/flame arrestors have limitations to their air flow capability. The filter element can only support enough air flow for approximately 500 horsepower.

Includes the mounting bolts.

Replacement Flame Arrestor for Mercury 600 / 700, Replaces #842240, #843946T

There's no need to buy the expensive Mercury OEM filter when this High Performance aftermarket replacement will do the same job at a fraction of the cost!