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BALDWIN · Engine Air Filter

PA1664

Inner Air Element

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Call either store for your current price.
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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
6 5/8 in.
Outside diameter (mm)
168.3
Inside diameter
4 1/4 in.
Length
9 13/16 in.
Length (mm)
249.2
Manufacturer part number
PA1664
GTIN
00791440012912

Baldwin replacement references: Case A17742

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 PA1664. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

52 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA343C1
AIR REFINERARM7091
AMERICAN PARTS9081
AMERICAN PARTS937421
BALDWIN FILTERSPA16641
BIG A FILTER9081
BIG A FILTER937421
CARQUEST877421
CASE93035441
CASE93055441
CASEA177421
CO-OPAP7091
COOPERSAES23871
CYCLONEPMA7091
DELUXE7941
DELUXE794AIR1
DELUXEAF7941
DONALDSONP5394831
EUROFILTER11061
FLEETGUARDAF8251
FLEETRITEAFR88251
FRAM FiltersCA2731
GM GENERAL MOTORS64841561
GOULDAP7091
GRAINGER4ZRJ41
GUARDIAN FILTER CO.G4307091
HASTINGSAF2721
HASTINGSPA16641
HEAVY DUTY AIRAM7091
KRALINATORLA1661
L.B. FILTERA7861
LUBER-FINERLAF17861
LUBER-FINERLAF5441
MOTORCRAFTFA2741
NAPA GOLD27421
NELSON84614S1
NU-TECHSS0591
PERRYPA7941
PUROLATOR93035441
PUROLATORAF7091
QUAKER STATEQSA2731
RYCOHDA51061
SAVARA923055171
SF-FILTER / SCHUPPSL57841
TRU-AIRTA73271
UNITED AIR CLEANERUP7091
UNITED ENGINE LIFEUP7091
WESTERN TOOL CO.WA20711
WGBSA1241
WIX427421
WIX5427421
WOODGATEWGA3581

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.

Case 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.