Wheel Adapter 4x110 To 4x137 (Pair) (4)

4x110 to 4x137 Wheel Adapters – CNC Billet Aluminum

Fit 4x137mm Wheels on Classic 4x110 Mazda Models
Includes New Studs | Precision Machined | Sold as a Pair

Upgrade your classic Mazda with confidence using our 4x110 to 4x137 wheel adapters, crafted to convert your vehicle's 4-lug 110mm bolt pattern to a 4-lug 137mm bolt pattern. These high-strength adapters are CNC machined from 6061-T6 billet aluminum to deliver long-lasting durability and precise fitment. Ideal for custom wheel setups on vintage Mazda vehicles.

Each adapter includes pre-installed, hardened steel studs for maximum reliability. Sold as a pair (2 adapters), these are designed specifically for the Mazda models listed below.

Vehicle Compatibility (4x110 Bolt Pattern):

• Mazda RX Series: RX-2, RX-3, RX-4, RX-7 (1971–1982), RX-7 (1984–1985, except GSLE)

• Mazda GLC, 626, Pickup (1971–1982)

Adapter Features:

• Converts 4x110mm to 4x137mm bolt pattern

• CNC precision machined from aircraft-grade 6061-T6 billet aluminum

• Includes pressed-in, hardened steel studs

• Designed exclusively for early Mazda applications

• Sold as a pair (2 adapters)

Important Fitment Note:

In some cases, especially with 1" thick adapters, the factory hub studs may extend beyond the surface of the adapter and interfere with the back of the wheel. If this occurs, you will need to trim the factory studs to ensure the wheel sits flush against the adapter.

These adapters are a great solution for Mazda enthusiasts looking to expand their wheel options while maintaining a secure, precision fit. Built for performance, reliability, and strength.