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Shop Kaiser Willys

New Hi-Torque Starter Motor 12 volt
Fits 41-49 MB, GPW, CJ-2A

Part # A1245-12V

New Hi-Torque Starter Motor in 12volt

Mini High Torque Starter To Replace  Early
Autolite Starter.

This is a Denso Gear Reduction Conversion Starter
made from the Powerful 1.2 KW Nippondenso
Gear Reduction Starter Motors.

Looking for a Trouble Free Starter to Crank
That Willys Engine? Try This 12 Volt
Starter Made in the USA. You Will Not Be

For Autolite MZ-4113 with 97 tooth flywheel

Center Hole (register): 3-1/8"
Hole to Hole (mounting hole):  4.55"
97 Tooth Ring Gear

4-134 L engine

41-45 MB
41-45 GPW
46-49 CJ-2A

Please confirm your starter motor number before ordering. Call if you need help. For use with key or push button switch.

Helpful Guides and Illustrations:
Wiring and Installation Guide

Part # Price





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my starter has 10 teeth will this still work?

Willys Jeep Parts Tech:
The ring gears are cut in a way that they accept either a 9 or 10 tooth bendix drive.

Does this starter make use of the bushing that is in the transmission bell housing? If so, do I have to change it? If I have to change the bushing, is it included with the new starter?

Willys Jeep Parts Tech:
No, these do not use the bushing.

does this starter have the same points of attachment as the original starter? or will modifications of some sort have to be made? I have a 42 Ford Willys GPW engine this is attaching to.

Willys Jeep Parts Tech:
Yes, it bolts up like original and see link in item description for wiring instructions. Thanks!

We have a 1947 Willys CJ2A; the only visible numbers on the existing starter is as follows: PS79 48 tm (Trade Mark)...

Willys Tech:
That is a MZ4113 starter and will be correct.

Are you supposed to ground the starter? If so where at?

Willys Jeep Parts Tech:
Yes, its recommended. Run it off the battery negative to one of the starter mounting bolts.

I have a 51 truck but the numbers on the starter match with this one. Not sure if this would be the correct starter or not.

Willys Jeep Parts Tech:
Call me toll free. I can help you out and ID what you have and need.

Hi,i have a french military jeep Hotchkiss 1964,12 volts,does your starter work on it? thanks

Willys Jeep Parts Tech:
Please email your starter motor numbers and we can try to match up for you. Thanks!

My starter is from a 1947 cj2a and the starter says PS79 A and it's 12 volts will it work

Willys Jeep Parts Tech:
Yes, this would be the correct replacement starter as long as those numbers match up and if you have a 12 volt system. Thanks

I have a 1943 Willys with a flat head 4 cylinder. I need to replace the starter. The stater that was on it has a part number of D PS79. Is this the right one to replace it with. NEW HI-TORQUE STARTER MOTOR 12 VOLT FITS 41-49 MB, GPW, CJ-2A Item # A1245-12V

Willys Jeep Parts Tech:
Yes, the PS 79 is the MZ 4113 starter. So this is the correct one for you.

Hello I'am french jeeper I have a JH 101 = cj 3b look but i have jeep willys motor 1342 I am transform it to 6v at 12v. I dont the item number choose for the starter motor? sorry for my english

Willys Jeep Parts Tech:
Please email your vehicle information and I can see what I can do to help you.

I just installed this starter on my 46' CJ2A. When I try to crank it grinds like an un-experienced welder. Is there a recommended shim for this starter? Thanks

Willys Jeep Parts Tech:
You shouldn't grind so you may not have the proper flywheel ring gear in your vehicle at 97 teeth or its worn. Please call us toll free and we can help.

How much does a 1947 Agri CJ-2A weigh. And will it fit onto a 5 X 10 ft. trailer?

Willys Tech:
They are approx. 1/4 ton vehicles. Approx. length 123 width 59

Is that Bendix gear 1 1/2 like needed on mz-4113 starter?

Willys Tech:
This is the proper bendix for the MZ-4113 starter.

How do I tell if I have a MB or a GPW its either a 1941 or 1943. Will the A1245-12V starter work on a 4-134F the original engine was 4 cyl flathead?

Willys Tech:
If its a GPW you will have a small 'f' script on the drivers side fender also on the frame as well.

Will the 12v starter #A1245-12V work on a 4-134 F engine which replaced a flathead?

Willys Tech:
Only if you are using the original 97 tooth flywheel and bellhousing.

How many teeth are there on the gear? Is it 9 or 10? Thanks.

Willys Tech:
9 tooth

we require a HI TORQUE 12 VOLT STARTER MOTORS ($299.29 price) free shiping. Is posible to send it by USPS TO MEXICO TO MEXICAN POSTAL OFFICE, IN VALLE DE MEXICO, EDO. DE MEXICO CP 51200 and how can be especificate in the purchase order form.

Willys Tech:
We ship daily UPS and USPS international. We are more than happy to help.

I have 1955, M38A1 Jeep that was partially converted by a fire dept to a 12 volt ignition system, to include an alternator. The starter is sill on a 24 volt system. I would like to replce the original starter with a 12 volt as well, for ease of use. It takes three batteries to make this system work. One would be much better. Do you have such a starter?

Willys Tech:
If you are running 12 volt we can help. Please call us toll free. We have one for you.

Is the 1950 Jeepster positive or negative ground?

Willys Tech:
All Willys are negative ground.

Will this starter work with my stock 6volt system on my cj2a thanks

Willys Tech:
This is for 12volt only. We have options for you. Please call us toll free. We are more than happy to help out.

Will this work with the floor mounted starter switch? Is there a 12v starter that will?

Willys Tech:
Yes, can be used with a floor switch if you like.

how does one know if they have the correct# of teeth on the flywheel for this starter? checking # on orig.or???? thanks.

Willys Tech:
You should have 97 teeth on your flyweel.
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