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BALDWIN · Engine Air Filter

PA2451

Outer Air Element

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Stock checked September 11, 12:46 PM 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
9 7/32 in.
Outside diameter (mm)
234.2
Inside diameter
21/32 in.
Length
15 1/2 in.
Length (mm)
393.7
Use with
PA2452
Manufacturer part number
PA2451
GTIN
00791440019027

Baldwin replacement references: Komatsu 600-181-3300

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

START WITH THE NUMBER YOU HAVE

CROSS-REFERENCE NUMBERS.

Baldwin’s reference lists the numbers below for PA2451. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

77 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA1123C1
AIR REFINERARM8001681
AMERICAN PARTS933981
AP FILTERSAP3034A1
ASAHIKA15801
ASAHIKA1620Outer, Filter O1
ASAHIKA1652Outer, Filter O1
BALDWIN FILTERSPA24511
BIG A FILTER933981
CANADIAN FILTER CO.CFM4891
CARQUEST873981
CATERPILLAR3I03761
CATERPILLAR3I1433Outer1
CATERPILLAR9Y68311
CONTINENTALPCA5701
COOPERSAZA1831
CUMMINS4253601
CUMMINSAR905161
DONALDSONP1419741
DONALDSONP1457041
DONALDSONP7715711
DONALDSONP8001681
DONALDSONP8064251
DONALDSONX006250Outer1
FLEETGUARDAF41591
FLEETRITEAFR841591
FRAM FiltersCA5701
GFFAF3801241
GM GENERAL MOTORS250971151
GPCFC3441
GRAINGER4XAF81
GUARDIAN FILTER CO.G8172101
HASTINGSAF3491
HASTINGSPA24511
HEAVY DUTY AIRA57041
HEAVY DUTY AIRA78151
HEAVY DUTY AIRHDA57041
HEAVY DUTY AIRHDA78151
IRLEMPAFI60351
JURA (HIFI)SA141091
KOMATSU14401B56101
KOMATSU60018133001
KOMATSU6151817600Filter Only1
KOMATSU6691807210Outer, Filter O1
KOMATSU6691807211Outer, Filter O1
KOMATSU6691807211P1
KOMATSU6691807212Outer, Filter O1
KOMATSU66918172101
KOMATSUYM14401B56101
KRALINATORLA4891
L.B. FILTERA8171
LUBER-FINERLAF85591
MANN+HUMMELC246401
NAPA GOLD23981
NELSON1457041
NELSON70241N1
NELSON-WINSLOW1457041
NU-TECHN15501
O&K ORENSTEIN & KOPPEL1011481
PBRAI32851
PIPERCROSSPX10291
PROMATCH9Y68311
PUROLATORA622621
PUROLATORAF22621
QIF AIRACA5701
REYTORIT8001681
ROMANR30041
RYCOHDA55321
SAKURAA5622SOuter1
SAKURAA56231
SF-FILTER / SCHUPPSL89261
SURE FILTER TECHNOLOGYSFA5704P1
SURE FILTER TECHNOLOGYSFA7211SETOuter1
WATSUN FILTERSTK7511
WIX423981
WIX5423981
WOODGATEWGA3851

Source: Baldwin Specs & Interchange · July 27, 2026. Reference quantity is part of the manufacturer’s cross-reference, not store stock.

CHECK THE EQUIPMENT. CHECK THE ENGINE.

APPLICATIONS & EQUIPMENT.

Komatsu 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.