OEM / REF: 526-3122SKU: pilotpart437443
Air Filter 526-3122 526-3118 for Caterpillar CAT Excavator 304 305C 305 CR 305.5 CR 305.5 GC 306 306.5 307 307.5 308 308.5 309 310 E306 E306.5 E307.5 E308.5 E310 is a Air Filter replacement part indexed for Caterpillar 304 and Caterpillar 305C, with 3 application records on file. Match OEM part number 526-3122 and c...
This Air Filter is indexed for Caterpillar 304; Caterpillar 305C; Caterpillar 305 CR; Caterpillar 305.5 CR. Compare reference number 526-3122 against the label on your existing Caterpillar component before ordering.
Additional cross references on file: 526-3118. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.
| Shape | Round |
|---|---|
| Type | Secondary |
| Height | 11.89(in) / 302(mm) |
| Width | 3.409(in) / 86.6(mm) |
| Long | 3.409(in) / 86.6(mm) |
| Part Number (Inner Air Filter) | 526-3122 |
| Part Number (Outer Air Filter) | 526-3118 |
| Part Number | Inner Air Filter: 526-3122 Outer Air Filter: 526-3118 |
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
