CAT NEW OEM Engine Air Filter Secondary 6I-2502 3116 3126 3306 NOS Part 0810

Caterpillar OEM Standard Efficiency Engine Air Filter — Secondary — Part Number 6I-2502
Brand: Caterpillar | Condition: New Old Stock (NOS)

You are purchasing a genuine Caterpillar OEM Standard Efficiency Engine Air Filter (Secondary / Safety Element), part number 6I-2502. This radial seal secondary filter is the last line of defense against dust, dirt, and other contaminants that may damage engine components. It protects the engine while the primary filter is being serviced or in the event of a breach in the primary filter. This is an authentic factory original part — never installed, never used.

Condition Details: This is a New Old Stock (NOS) part. The filter 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 Information:

• Primary OEM Part Number: 6I-2502
• Also referenced as: 6I2502
• Paired with primary filter: 6I-2501
• This part number may have been superseded by an updated Caterpillar part number. We recommend verifying any current supersede numbers through your local Cat dealer or the official Caterpillar parts catalog at parts.cat.com prior to ordering.

Cross-Reference Part Numbers:

• Baldwin: RS3505
• Donaldson: P532502
• Fleetguard: AF25126M
• Hastings: AF2201
• Mann: CF1574
• Carquest: 88478
• Luber-Finer: LAF4502

Compatible Equipment (partial list — Caterpillar):

• Engines: 3116, 3126, 3208, 3304, 3306
• Generator Sets: G3306, G3306B
• Paving Compactor: PS-500
• Wheel Skidders: 528, 528B, 530B
• Additional Cat equipment using the 3116/3126/3304/3306 engine family — verify by model and serial number