The Castair Replacement Axle for Twin Tank Portable AT34 is a factory replacement axle for Cast Air's twin-tank portable air compressor models. When the axle bends, breaks, or corrodes to the point where the wheels no longer roll correctly, this is the part that restores mobility to the unit. At $7.70, it is a straightforward repair part — the kind of thing that ends up on a service order after a compressor gets dropped off a truck or left outside in weather for a season.
Twin-tank portable compressors are working tools. They get moved, bumped, dragged, and sometimes mistreated. The axle takes the mechanical load of rolling a fully-loaded twin-tank compressor — with tank, motor, pump, and stored air — across a shop floor or job site. Cast Air manufactures these to match the original dimensions and materials of the factory axle on their portable twin-tank units.
What This Part Is
- Part Type: Replacement axle for portable twin-tank compressor wheels
- Compatible Model: Cast Air twin-tank portable compressor (AT34 series)
- Application: Restores proper wheel operation when the original axle is bent, broken, or corroded
- Material: Steel (contact Cast Air for exact material specification on your model)
- Price: $7.70 — this is a consumable repair part, not a rebuild kit
When You Need This Part
- The wheels bind or wobble when rolling the compressor
- The original axle is visibly bent from impact (dropping, running over, or side load)
- Corrosion has seized the wheel on the axle and the axle needs replacement rather than cleaning
- The axle has sheared or cracked at a wheel mount point
Installation Notes
Axle replacement on a twin-tank portable is a straightforward field repair. Remove the wheel retaining clips or cotter pins, pull the old axle, slide in the replacement, and reinstall the wheels and retainers. Specific fastener types vary by model year — refer to your compressor's parts diagram or contact Cast Air at (320) 796-0851 if you need clarification on your specific unit before ordering.
What is in the Box
- One replacement axle — AT34
- Hardware may or may not be included depending on configuration — verify with Cast Air or at time of order
Compatibility
This axle is spec'd for Cast Air's twin-tank portable compressor line. If you have a different Cast Air portable model — single tank, wheelbarrow style, or a commercial series — the AT34 axle may not be dimensionally correct. Manufacturer specifications are limited on this part number. Contact us at 866-217-0063 or Cast Air at (320) 796-0851 with your compressor model number to confirm fitment before ordering.
Why Buy From OEM Diagnostic Tools?
We have specialized in professional shop equipment since 2016. We stock Cast Air replacement parts and ship free. For parts questions — fitment, compatibility, or what hardware you need to complete the repair — call our technical support line at 866-217-0063. We will get you the right part the first time rather than having you wait on a second order.
Call 866-217-0063 for quick answers and help!
