Some Handy Mighty Mite Info (PART NUMBERS)

1959 - 1962, Mighty Mite, M422, Wanted, USED PARTS FOR SALE, and Knowledge Base
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Some Handy Mighty Mite Info (PART NUMBERS)

Post by B.C. » Mon Oct 20, 2008 7:03 pm

Since NAPA is a nationwide chain, most of the numbers listed are NAPA numbers. Usually other auto parts suppliers can cross reference from these numbers to theirs. This is a handy list to copy and keep with your Mite.

Battery - Legend 7545
Oil Filter - 1004
Coil - Autolite CT4002 (I do not have a NAPA number for this part)
Points - CS725A
Distributor Cap - Autolite IAU-1048 (no NAPA number)
Condenser - AL869
Rotor - Autolite IAU1066 (NAPA number AL166)
Champion Spark Plug - XMJ-20
AC Spark Plug - WR47
Autolite Spark Plug (old #) - AR9S
Autolite Spark Plug (new #) - 2247
Headlight - 4860 & 4863
Generator Belt - 25-08383
Blower Belt - 25-06853
Master Cylinder - (Wagner Lockheed #) 32641
Front Wheel Cylinder - 7379
Front Cylinder Kit - 106
Rear Wheel Cylinder - 7568
Rear Cylinder Kit - 127
(Another source) Wheel Cylinders - New Star S-11590, and S-11591
Fuel Pump - (Orig. Equip.) - AC Model EP
Lug Nuts - 3/4 R, 1/2-20 Thread
Wheel Bearing Wrench - 745-3031
Vacuum Wiper Motor - Trico SK527 series
Front hub large bearing sets - Timken 27690 and 27620
Front hub small bearing sets - Timken 18790 and 18720
Front hub seal - National 410708
Rear hub bearing - Timken SET6
Rear hub seal - National 410479 S54
Engine front pulley seal - National 7979455
Front axle nut (p/n 3046) Fastenal SKU 36863
(Thanks to Joe S. for the last 6 numbers)

Brake Light Switch (Thanks to Bill H.)
Nobody but nobody offers a brake pressure switch for an M422 Mighty Mite so I did a little research and came up with this number, 5930-00-755-0761. The Mite SL lists it and when I did a compatibility search I found it to be listed as "M151 A-1 Switch, Brake Light, 7064588 5930-00-755-0761". I ordered the switch from Saturn Surplus.
Last edited by B.C. on Sat Oct 13, 2012 4:47 am, edited 6 times in total.
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Post by drbob1961 » Tue Oct 21, 2008 4:06 am

Good info. What branches of the military had the M422?

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Post by B.C. » Tue Oct 21, 2008 7:05 am

They were tested by the army, but only purchased and used by the Marine Corps. I've seen a couple restored as Seabee rigs, but the Seabees would've had to steal them from the Marines because the navy didn't purchase any Mighty Mites.
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Post by m15150 » Tue Oct 21, 2008 5:41 pm

Hello Brian
Thanks for taking the time and effort of gathering all the info and posting it for everybodies benefit. It will come in handy as I am about to start the restoration of a M422.

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Post by Eddie Holland » Wed Oct 22, 2008 11:58 am

that Rotor number above is totally different than the one in the Might. I got one home last week and its not the same. However when I took the rotor from the Mite in to Napa they matched it. I will look for the number
Last edited by Eddie Holland on Sun Nov 20, 2011 7:41 pm, edited 1 time in total.
42 GPW 12/30/42 Matching #'s 88,638 being restored
Restoring
M-151 Ford
M-151-A1 Ford
M-151-A2 AMG restored
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restoring 2 M-100s


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Post by B.C. » Wed Oct 22, 2008 4:21 pm

Thanks, Eddie. I got all the info out of the charts in the Army Vehicle Parts Guide, and their info is incorrect for the rotor.

I went to my local NAPA store and they were not able to come up with an exact match. NAPA apparently has discontinued the correct rotor, but I've updated the list at the top of this thread to include the OEM number so it can be cross-referenced at other parts stores.
Brian Cowdery
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Re: Some Handy Mighty Mite Info

Post by acmack » Tue Oct 20, 2009 6:28 am

Anyone have the numbers for rod bearings and mains? Are NOS okay? I was thinking I should do them since I have the motor torn down for a jug swap anyway. David
Any other spacecraft or missile owners out there?
MAR 43' GPA 9545 MAR 43' GPA 10568 getting there!
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60' Gemini BP CM MSC312

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Re: Some Handy Mighty Mite Info

Post by mstrmstr » Tue Oct 20, 2009 1:40 pm

The original worked for more than 48 years so I would say they're fine.
Still available from a couple of the well mentioned sources here- just ask them nicely if you have bought from them before.
It is better to use std size and have your crank checked after you inspect your bearings for wear patterns. Magnaflux everything crankcase/crank/rods/caps/bolts--EVERYTHING. If your crank needs to be ground - just have it chromed back to specs. not that bad of expense ...dont forget to put in new cam bearings also.
and always-always-always measure.
Remember to keep everything surgically clean before reassembly.

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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by B.C. » Mon Nov 29, 2010 5:37 am

I've seen some new Mite enthusiasts posting here recently, so moving this back to the top for their benefit.
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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by skinnedknuckles » Mon Nov 29, 2010 11:06 am

Thanks, those will come in handy :D
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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by Bill H. » Tue Nov 30, 2010 12:14 pm

I see where some of the numbers have brands attached but having the brand is almost a must when going to the corner auto parts house. I would like to see an update or revised list with part numbers, brands and cross reference information. Has anyone done this?
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1962 AMC M422A1
1965 Stevens M416B1

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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by Bill H. » Thu Mar 29, 2012 7:07 am

Thank you Moderators for making this a stickie!!! :mrgreen:
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1962 AMC M422A1
1965 Stevens M416B1

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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by Bean » Tue Jun 12, 2012 4:28 pm

I've been rebuilding my Mite using this list,And I have to say most of the numbers don't get you far.I have returned most of the parts that I have bought using these numbers.I now just take the old part to my local NAPA and they can usually cross it over.

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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by BigBlock » Sat Jun 16, 2012 1:21 pm

Should we un-sticky and archive this post, and start a new post with current verified part numbers?
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M422 #182, #1265
M422A1 #1673, #1788, #1843, #1846, #1957, #2260, #2883, #3284, #3743

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Re: Some Handy Mighty Mite Info (PART NUMBERS)

Post by Bean » Sat Jun 16, 2012 3:05 pm

Maybe,Some of the numbers do work.The battery number is close,But that battery is backwards.Also,The wheel cylinders are the same front and back.So,half of those numbers are incorrect.My NAPA dealer has advised me that they are discontinuing brake part rebuild kits.So you will need to buy new in the near future.Most of the original part numbers do not cross over.This probably has a lot to do with the uniqueness of this vehicle and its short production.Some 60's AMC/International parts do come up in a parts cross,Not sure if they work.I did find a carb rebuild kit that was a exact match and a master cylinder kit that works.I can list #'s if anyone needs them.

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