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BALDWIN · Engine Air Filter

PA1726

Inner 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
Inner Air Element
Outside diameter
6 5/8 in.
Outside diameter (mm)
168.3
Inside diameter
4 1/4 in.
Length
14 1/2 in.
Length (mm)
368.3
Manufacturer part number
PA1726
GTIN
00791440013421

Baldwin replacement references: Purolator 6659367

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 PA1726. 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.

27 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA914C1
AIR REFINERARM7151
AIR REFINERARM715B1
AMERICAN PARTS10361
BALDWIN FILTERSPA17261
CARQUEST872461
CARQUEST933511
CASEXA693891
CATERPILLAR3I03191
DONALDSONP1345871
DONALDSONP1368321
FRAM FiltersCA5201
GRAINGER4ZUZ71
HANCOCK7039000851
HANCOCKT6E54925E1
HEAVY DUTY AIRA68321
KRALINATORLA1501
MOTORCRAFTFA1591
NAPA GOLD22461
NELSON70847N1
PUROLATOR66560941
PUROLATOR66593671
PUROLATORAF7141
UNITED ENGINE LIFEUP7141
WESTERN TOOL CO.WA20971
WGBSA1401
WIX422461

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.

Galion Graders; Optional Purolator Housings

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.