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 RBS SUPERCHARGERS IS CLOSED UNTIL DEC 5TH.
Online ordering will be available from November 25th, - Dec 5th. No phone or email will be available at this time. We apologize in advance, for any inconvenience this may cause and look forward to welcoming you back on December 5, 2024. 

B&M 420 Mega Blower Rebuild Kit

Price:
$175.95
Part No.:  700-036
MPN: 9010
Qty:
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*** IN STOCK SHIPS TODAY *** RBS carries a full supply of rebuild parts for the B&M 420 Mega blower and with this kit you can tune up your blower and enjoy many trouble free miles in your hot rod.

Included is two precision 5205 hi-speed ball bearings for the front of the supercharger, two rear caged roller needle bearings and four rotor shaft seals. Rotor shaft seals are a durable double lip seal that measure 1.755" O.D. x .250" thick with a 1.250" shaft.

Also included is a gasket set which includes a base gasket, front cover gasket, rear bearing cover gasket and four bearing plate to blower case gaskets .015" thick so rotor to bearing plate clearance can be adjusted if needed.

Last but not least a sealed hi-speed precision ball bearing for the blower snout with a new Spirolox retaining ring and a Buna rubber blower snout seal that measures 2.075" O.D. x .315" thick with a 1.250" blower snout driveshaft. Now one of the most important parts of the rebuild are two new heat treated grade eight gear bolts and two heat treated steel washers to hold the gears in place when the bolts are torqued. These washers in stock form are prone to cracking and allowing the bolt to come loose that holds the gear allowing the rotors to go out of time and you know the rest of the story, it gets ugly.

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