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BALDWIN · Engine Air Filter

PA2668

Inner 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
Inner Air Element
Outside diameter
5 1/16 in.
Outside diameter (mm)
128.6
Inside diameter
21/32 in.
Length
13 19/32 in.
Length (mm)
345.3
Manufacturer part number
PA2668
GTIN
00791440021518

Baldwin replacement references: Komatsu 600-181-2350

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 PA2668. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

127 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA866C1
AIR REFINERARM5231
ALLIS-CHALMERS49925481
AMERICAN PARTS936021
AP FILTERSAP30331
AP FILTERSAP3033A1
AP LOCKHEEDAP30331
AP LOCKHEEDAP3033A1
AP LOCKHEEDLK30331
ASAHIKA15891
ASAHIKA16291
ASAHIKA16301
ASAHIKA1655Inner, Filter O1
ATLAS COPCO2900534500Inner, Filter O1
BALDWIN FILTERSPA26681
BIG A FILTER936021
BOWESLAF17721
BUDA49925481
CARQUEST876021
CATERPILLAR3I04391
CATERPILLAR3I1429Inner1
CATERPILLAR9Y68321
CHAMPION LABORATORIESAF5231
CHAMPION LABORATORIESLAF5231
CONTINENTALPCA1592SY1
COOPERSAES20191
COOPERSAES20211
COOPERSAES25811
CROSLAND96911
DONALDSONP1426091
DONALDSONP1590361
DONALDSONP9007191
DONALDSONP9008651
DONALDSONR8017041
DONALDSONR801855Inner1
DONALDSONX006245Inner1
EUROFILTER61511
FAMELFR10101
FIAT49925481
FIAT749925481
FILTA24861
FILTER MEXFMA76201
FLEETGUARDAF19021
FLEETGUARDAF1902M1
FLEETGUARDAF41091
FLEETGUARDAF45321
FLEETGUARDAF8921
FLEETRITEAFR819021
FLEETRITEAFR81902M1
FLEETRITEAFR841021
FLEETRITEAFR841091
FLEETRITEAFR845321
FLEETRITEAFR88921
FRAM FiltersCA1592SY1
FRAM FiltersCA7218SY1
GFFAF3300971
GIESSEAHI10981
GIESSEAHI11071
GM GENERAL MOTORS250423161
GM GENERAL MOTORS250423171
GPCFC5941
GRAINGER4ZRR91
GREYFRIARS1314A1
GUARDIAN FILTER CO.8376201
GUARDIAN FILTER CO.G8376201
HASTINGSAF6141
HASTINGSPA26681
HEAVY DUTY AIRAM5231
HEAVY DUTY AIRHDAM5231
HENGSTE1522LS1
IRLEMPAFI60331
KOMATSU60015182311
KOMATSU6001811260Inner1
KOMATSU60018113301
KOMATSU60018123201
KOMATSU60018123501
KOMATSU6001822500Inner1
KOMATSU61128176201
KOMATSU6112837600Inner1
KOMATSU6112837600S1
KOMATSU6112837601Inner, Filter O1
KOMATSU6112837602Inner, Filter O1
KOMATSU61128376201
KOMATSU61128386201
KOMATSU61158076021
KOMATSU6115817201Inner, Filter O1
KOMATSU6115817600Inner1
KOMATSU6115817601Inner1
KOMATSU6115817602Inner1
KOMATSU6115817602S1
KOMATSU6115857100Inner, Filter O1
KOMATSU6115857101Inner, Filter O1
KOMATSU6150817200Inner, Filter O1
KOMATSU6631817202Inner, Filter O1
KOMATSU6631817603Inner, Filter O1
KRALINATORLA6021
L.B. FILTERA9201
LUBER-FINERLAF17591
LUBER-FINERLAF1759E1
LUBER-FINERLAF17721
LUBER-FINERLAF5231
MANN+HUMMELC13741
MANN+HUMMELCF131101
NAPA GOLD26021
NELSON84648S1
NELSON84959S1
NELSON-WINSLOW84648S1
NU-TECHSS0981
O&K ORENSTEIN & KOPPEL1010881
PIPERCROSSPX10591
PROMATCH9Y68321
PUROLATORA529871
PUROLATORAF29871
REYTORIT5231
RYCOHDA50841
SAKURAA5604SInner1
SAKURAA56061
SAVARA923281171
SF-FILTER / SCHUPPSL89371
SURE FILTER TECHNOLOGYSFA7600SETand1
SURE FILTER TECHNOLOGYSFA9036S1
TECNOCARA5161
TRACTOMOTIVE49925481
UFI FILTERS27930001
WIX426021
WIX5426021
WOODGATEWGA398S1

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.