Kenne Bell/Opcon-Autorotor 2.0L OA-420-MX/SR4-420-MX Supercharger Head Unit


KB 420MX

Out of stock


Refurbished Kenne Bell/Opcon-Autorotor 2.0L OA-420-MX/SR4-420-MX Supercharger Head Unit, ready to ship.

Same case dimensions as 1.5L, 2.2L. Can also be used with 1.33L, 1.7L, and 1.8L on some applications without modification.

Drive configurations: Extended drive snout capable either in G1 or G2 as well as direct drive. G1 shown.

New Cerakote Graphite Black. No damaged threads. Clean mounting areas.

New parts internally AND what separates us from the competition:

  • Upgraded SKF front and rear bearings.
  • JB Performance PTFE seals over buna seals.
  • JB Performance 3 Stage Full Synthetic Lubricant.
  • Ceramic coated rotors.
  • New gears, new aluminum coupler.
  • New marine grade stainless steel hardware over zinc plated for gear case cover and drive snout.
  • Chrome drain plugs instead of zinc plated.
  • New dipstick and marine grade stainless hardware.

Have an older unit in need of service or damaged? Call for a trade in.


Additional information

Weight 40 lbs
Dimensions 20 × 20 × 20 in


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