Heavy-duty steel wheel rim 2026186 by GX-AFTER. Designed for the front axle of Caterpillar (CAT) backhoe loaders. The nominal size 9x18 is dedicated for use with industrial tires sized 12.5/80-18 (also marked as 12.5-18 / 340/80-18). The rim design ensures optimal seating on a hub with a 221.8 mm diameter, standard for CAT C, D, E, and F series machines.
GX-AFTER rims are manufactured from rolled steel with increased fatigue strength. Precise disc stamping and robotic welding guarantee perfect geometry (no runout) and safety under heavy loads.
| Machine Type | Models / Series |
|---|---|
| Backhoe Loaders | 414E, 416 (C, D, E, F, F2), 420 (D, E, F, F2), 422 (E, F, F2), 424D, 427F2, 428 (D, E, F, F2), 430 (D, E), 432 (D, E, F, F2), 442 (D, E) |
The model list is for reference. It is crucial to check the tire size (12.5-18) and center bore diameter (221.8 mm) on your machine.
The rim is sold without a tire and fasteners. New wheel nuts and hub studs may be needed for installation. We also recommend installing a new valve stem.
Driving on a cracked or bent rim risks sudden loss of tire pressure and, in extreme cases, wheel detachment from the hub. Fatigue cracks near mounting holes are a sign for immediate rim replacement.
The rim transmits torque from the hub to the tire and carries the weight of the front of the machine (especially during loader work).
📞 Can't find the part you're looking for?
No worries. Our website features only a few thousand of the over 60,000 parts we have in stock. Contact us – we likely have what you need readily available!
This is a front axle rim. Rear wheels on CAT 428 machines are much larger (typically 26 or 28 inches).
Yes, the rim design allows for the installation of tubeless (TL) tires, but tubes can also be used.
Standardly in this model (CAT with 221.8mm hole), the rim is mounted on 5 studs. Please verify on your machine.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
Data sheet
Specific References
Manufacturer
Responsible person
See also similar products






Front rim, size 9x18, for a 12.5x18 tire, for backhoe loaders, suitable for CAT 428E 428D machines.

















