Description
If you’ve got one of those classic orange Allis Chalmers tractors from the ’50s and ’60s, you know how these vintage machines were built to work hard and last. This air cleaner cap is the finishing touch on your tractor’s oil bath air filtration system, keeping dust and debris from getting past that first stage of protection. It’s one of those simple parts that makes a big difference in keeping your engine breathing clean.
What You’re Getting
- Exact-fit dimensions with 1-5/8 inch inner diameter and 4 inch outer diameter for proper seal
- 1-3/8 inch height matches original specifications perfectly
- Durable construction that handles the vibration and temperature changes of field work
- Direct replacement that installs just like the original factory cap
Built for Vintage Iron
This cap fits the CA, D10, D12, and D14 series Allis Chalmers tractors—those dependable workhorses that were the backbone of many farms back in their heyday. Whether your machine is still earning its keep on chores around the homestead or you’re restoring it to show condition, having the right air cleaner cap keeps everything looking and working like it should.
Made to Last
These vintage tractors were designed when parts were built heavy and meant to last decades. This replacement cap maintains that same philosophy with sturdy construction that won’t crack or warp under normal use. The oil bath air cleaner system these tractors use is actually quite effective when properly maintained, and this cap is an essential piece of that puzzle.
Good to Know
Installation is straightforward—just remove the old cap and thread on the new one. If your air cleaner hasn’t been serviced in a while, this is a perfect time to check the oil level and clean out any accumulated debris. These old oil bath systems work great when kept up, and a proper-fitting cap keeps everything sealed up tight.






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