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BALDWIN · Engine Air Filter

PA3421

Panel Air Element

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Call either store for your current price.
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Stock checked October 2, 11:37 AM Eastern. Call before travelling so we can confirm what is still available.

Call Belleville ↗Call Kingston ↗Text your part number ↗

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Panel Air Element
Manufacturer part number
PA3421
GTIN
00791440025608

Baldwin replacement references: Donaldson P131231; Heavy Duty Air A1231

Baldwin PIES August 20, 2026 · Baldwin Product Guide July 24, 2026.

START WITH THE NUMBER YOU HAVE

CROSS-REFERENCE NUMBERS.

Manufacturer catalogs list the references below for PA3421. GK Industries-supplied references are identified in the note column. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

14 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
AIR REFINERARM1312311
BALDWIN FILTERSPA34211
CARQUEST934601
CATERPILLAR3I02421
DONALDSONP1312311
FLEETGUARDAF47921
FLEETRITEAFR847921
GARDNER DENVER5L341
GPCEP52801
GRAINGER4XAK71
HEAVY DUTY AIRA12311
HEAVY DUTY AIRHDA12311
NELSON-WINSLOW1312311
SURE FILTER TECHNOLOGYSFA12311

Sources: Baldwin Specs & Interchange · July 27, 2026; GK Industries PIES · August 21, 2026, where identified. Reference quantity is part of the manufacturer’s cross-reference, not store stock.

CHECK THE EQUIPMENT. CHECK THE ENGINE.

APPLICATIONS & EQUIPMENT.

Call with your equipment model, engine and the number on the existing filter. Our counter will help verify the application.

A REAL COUNTER. CLOSE TO HOME.

YOUR LOCAL FILTER PEOPLE.

Bring the number off your old filter, or your equipment and engine details. We’ll help check the match.