Caterpillar OEM Secondary Air Cleaner Element — Part Number 533-3118 Brand: Caterpillar (CAT) | Condition: New Old Stock (NOS)
You are purchasing a genuine Caterpillar OEM Secondary Air Cleaner Element, part number 533-3118 (also referenced as 5333118). This is an authentic factory original part — never installed, never used.
Condition Details: This is a New Old Stock (NOS) part. The air cleaner element itself is in new, uninstalled condition. As is common with NOS inventory, the original packaging may show signs of age, including shelf wear, dust, or minor cosmetic blemishes on the bag or box. The part is new and fully functional.
Part Number / Supersede / Cross-Reference Information:
Primary OEM Part Number: 533-3118 / 5333118
Frequently paired with primary air cleaner element: 533-3117
Also cross-references: 526-1325, 134-8726, 140-2334, 131-8902, 131-8903
This part number may have been superseded or cross-referenced by an updated Caterpillar part number. Verify any current supersede numbers through your local CAT dealer or the official CAT SIS parts catalog prior to ordering.
Application: This is the genuine Caterpillar OEM Secondary Air Cleaner Element — the inner safety element that serves as a final barrier against dust and particulates should the primary air filter be compromised or breached. Confirmed fitment includes Caterpillar compact excavators including:
Always verify your specific machine model and serial number before ordering.
Why Choose OEM Parts? OEM parts are engineered and manufactured to exact factory tolerances, ensuring a precise fit, reliable performance, and long service life. Genuine CAT air filter elements are manufactured to exact filtration specifications — ensuring your engine receives clean, particle-free air for reliable combustion and maximum protection of internal engine components. Using a genuine secondary (safety) element provides the critical last line of defense against engine-damaging contamination.
Returns: We proudly offer hassle-free returns. If you are not completely satisfied with your purchase for any reason, simply open a return request through eBay within 30 days of purchase and we will take care of you promptly.
Thank you for choosing QBS Parts Inc! We truly appreciate your business. If you have any issues whatsoever with your order, please give us the opportunity to resolve them before leaving feedback — we are committed to making every transaction a great experience.
Please verify fitment using your equipment's model and serial number before purchasing. Feel free to message us with any questions — we're here to help!
