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BALDWIN · Engine Air Filter

PA2781

Outer Air Element

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Stock checked October 2, 11:37 AM Eastern. Call before travelling so we can confirm what is still available.

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Outer Air Element
Outside diameter
14 1/4 in.
Outside diameter (mm)
362.0
Inside diameter
9 29/32 in.
Length
18 21/32 in.
Length (mm)
473.9
Use with
PA2782, PA3551
Manufacturer part number
PA2781
GTIN
00791440022607

Baldwin replacement references: Caterpillar 7W9853

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 PA2781. 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.

26 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA1590C1
AIR REFINERARM98531
AMERICAN PARTS947211
BALDWIN FILTERSPA27811
BIG A FILTER947211
CARQUEST887211
CATERPILLAR7W98531
DONALDSONP1812101
DONALDSONSMP1812101
FLEETGUARDAF46921
FLEETRITEAFR846921
FRAM FiltersCA69271
GM GENERAL MOTORS253138971
GRAINGER4XDU11
HASTINGSPA27811
HEAVY DUTY AIRA7W98531
JURA (HIFI)SA146421
KRALINATORLA12701
LUBER-FINERLAF17741
NAPA GOLD67211
NELSON70851N1
NU-TECHSS1011
PUROLATORA746921
WIX467211
WIX5467211
WOODGATEWGA6311

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.

Caterpillar Equipment

Baldwin Product Guide summary. This description does not establish fit for every model from each manufacturer.

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.