MANN C321170 CF21239 Air Filter Set for Caterpillar | 6I2505 6I2506 Cross Reference

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Quick Answer: C321170 with CF21239 is a MANN primary and safety air filter set for Caterpillar excavator and construction equipment applications.

Product Identification

Jinguan / reference model	C321170 + CF21239 / Caterpillar 6I-2505
Product type	Engine Air Filter Set
Matching method	Confirm by OE number, cross reference number, filter photo, dimensions or sample before bulk order.

Primary C321170	OD 317 mm x ID 209 mm x H 379/392 mm
Safety CF21239	OD 209/199 mm x ID 153 mm x H 383 mm
Set type	Primary and secondary radial seal air filter set

Caterpillar excavator applications using 6I-2505 and 6I-2506 references
Claas equipment applications using 03654910 / 03654920 references
Heavy-duty construction machinery air cleaner systems using P532505 / P532506 equivalents

Cross references are for identification only. Final fitment should be confirmed by OE number, dimensions, photo or sample.

Send the old filter photo, housing photo and measured size when replacing a non-original element.
For air filter sets, confirm both the primary element and the secondary safety element before ordering.
Reference data checked against catalogue and aftermarket cross-reference sources:

Send OE number, filter photo, dimensions, equipment model and quantity. Jinguan will confirm replacement fitment and prepare export quotation.

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