M37 Adapter Plate

$100.00

Modern Tire Adapter for Dodge M37 & Power Wagon – Compatible with 2-Piece HMMWV Wheels (12/24 Bolt)

Want to upgrade your Dodge M37 or Power Wagon with modern radial tires? Our 3/8” steel adapter plates are the perfect solution for mounting 2-piece HMMWV wheels (12-bolt or 24-bolt) to your classic military truck. These precision-cut adapter plates allow you to run more modern tire options without compromising the original aesthetic or performance of your vehicle.

Key Features:

Compatible with 12-bolt and 24-bolt 2-piece HMMWV wheels
Fits Dodge M37, Power Wagon, and similar 5-lug military axles
Easily installs using stock HMMWV wheel studs
Adapter is sandwiched between the locking nuts and the outer rim face—assemble your wheel and tire as usual
Available with or without HMMWV wheels – supply your own or let us provide them
Shipped in raw steel – ready for your choice of paint or powder coating

Whether you're upgrading for performance, or style, these adapter plates provide a solid, field-tested option for running radial tires on your vintage 4x4.

24 Bolt Adapter Plate only works with the Load Range D HMMWV wheel. This is the rim with evenly spaced studs, not paired studs. Paired studs are Load Range E and these adapters don't work with them.

As of 5/12/25 I only have two 12 bolt adapter plates in stock. Per the laser shop I will have the next batch before June 4th. Please put your order in so you can be on the list of the first to ship out.

Don’t want to machine or cut out your rim? No worries, let us machine the rim for you one one of our lathes. Each rim will be machined to fit the adapter plate just right and then is sent off for chemical stripping. Once the rim is stiped is is glass blasted for an even finish and powder coated satin black. All of the hardware has been sent out for shot blasting and a fresh coat of yellow zinc.

Don’t want to worry about mounting and balancing the tires on your own? Let us do it for you. Ask us about complete rim and tire packages.

Want a color besides black or 383 green? Contact us with your special request.

Machined Rim for Adapter Plate available here.

Contact us about Rim and Tire Packages Here.

If you have your own rims and want to cut them yourself here is a video for doing that. It's a very easy process to do on your own.