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Cat Excavator Filters

Cat Excavator Filters parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	236-299D3 XE, 307-A, 416C, 416D, 420D, 424D, 426C, 428C, 428D, 430D, 432D, 436C, 438C, 438D, 442D	Outer Air Filter, Primary Element		110-6326	$38.00	View Info
	See Details	416C, 420D, 428D, 257, 277, 279D, 287, 289D, 299D, 236D, 246C, 262C, 272D, 307, 312D, 314D, IT14G, TH210, 906H, 908H, 914G	Air Filter, Secondary (Inner)		1318903	$38.00	View Info
	See Details	236D-299D3 XE, 303.5E-308E2SR, 901C-914K	Engine Oil Filter		377-6969	$16.00	View Info
	See Details	301.5, 301.6, 301.8, 301.8C, 302.5, 302.5C, 303.5, 304.5, 216, 216B, 226B, 232, 232B, 242B, MIDI CX, TLT25D, TLT30D, 1CX, 160 ROBOT, 160HF ROBOT, 170 ROBOT, 170HF ROBOT, 520-40, 8014, 8016, 8018, 8025ZTS, 8030ZTS, 8035ZTS, 8040ZTS, 8045, 8045ZTS	Engine Oil Filter		P550335	$18.00	View Info
	See Details	226D-299D2 XHP, 304.5E2-308E2SR, 902C2-914K	Fuel Water Separator Filter		363-5819	$56.00	View Info
	See Details	303.5, 304.5	Hydraulic Oil Filter		1430588	$72.00	View Info
	See Details	307, 307B, 307C, 308C, 308D, 311, 311B, 312, 312B, 312C, 312D, 313B, 314, 315, 316E L, 317, 318B, 318C, 319C, 320C, 320D, 321C, 322C, 323D, 324D, 325C, 325D, 326D L, 329D, 330C, 330D, 336D, 336E, 345C, 345D, 349D, M325C, W345C, 904B, 904H	Hydraulic Oil Filter		2897836	$129.00	View Info

Replacement filters for Caterpillar excavators, covering air filtration components for 300 series machines.

Fits Models At A Glance

300 Series: 307, 312D, 314D

Key Notes

Application: Replacement air filters for Caterpillar excavators
Coverage: Secondary inner air filter for 300 series Cat excavator platforms
Function: Protects the engine from dust and debris ingestion on Cat excavator applications

Why Choose Broken Tractor

✅ Cat excavator filters stocked and ready
✅ OEM-equivalent fit for 300 series machines
✅ Engine protection parts priced right

Frequently Asked Questions

What filters fit a Cat 320 excavator?

Broken Tractor carries two hydraulic filters for the Cat 320 family. The Hydraulic Oil Filter (SKU 2897836) fits the 320C and 320D, and the Hydraulic Spin-On Filter (SKU 937521X) fits the 320B, 320C, 320D, 320D2 and 320EL. Fitment varies by model and serial number, so match the part number on your current filter before ordering.

Which Caterpillar air filter does my excavator need, inner or outer?

Many Cat excavators use two air filters: an outer primary element that catches most of the dust and a secondary inner filter behind it as a backup. We carry the Secondary (Inner) Engine Air Filter (SKU 1318903) for the Cat 307, 312D and 314D, and the Outer Air Filter (Primary Element) 110-6326 for the 307-A. Both protect the engine from dust and debris, so check the part numbers on your existing elements to be sure you order the correct pair.

What filters do you carry for Cat mini excavators?

We carry engine oil and hydraulic filters for several Cat mini excavators. The Engine Oil Filter P550335 fits the 301.5, 301.6, 301.8, 301.8C, 302.5, 302.5C, 303.5 and 304.5, and the Hydraulic Oil Filter (SKU 1430588) fits the 303.5 and 304.5. For newer E series machines, the Engine Oil Filter 377-6969 covers the 303.5E through 308E2SR.

Do you carry fuel filters for Cat excavators?

Yes, Broken Tractor offers the Fuel Water Separator 363-5819 for Cat 304.5E2 through 308E2SR excavators. It filters the fuel and separates water from it before the fuel reaches the engine. Confirm that your machine falls within that model range, or match the 363-5819 number on your existing filter.

How do I find the right filter for my Cat excavator?

The most reliable way is to match the part number printed on your old filter, such as 377-6969, 363-5819 or 110-6326, against the listings. Filter fitment can change by model and serial number, even within the same series, like the 312C versus the 312D. If you are unsure, call (800) 909-7060 and our parts team can help confirm the correct filter.

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