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BALDWIN · Engine Air Filter

PA2438

Inter-Cooler 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
Inter-Cooler Air Element
Outside diameter
12 3/4 in.
Outside diameter (mm)
323.8
Inside diameter
8 11/32 in.
Length
9 in.
Length (mm)
228.6
Manufacturer part number
PA2438
GTIN
00791440018877

Inside-Out Flow Direction;Sometimes used with LL2439, PA2439 in vertical housing or PA2494 in horizontal housing.

Baldwin replacement references: Mack 57MD21

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 PA2438. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

74 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ACDELCOA738C1
AIR REFINERARM1277521
AIR REFINERARM1810051
ALLIANCEABPN10GAF9101
AMERICAN PARTS11831
BALDWIN FILTERSPA24381
BIG A FILTER11831
BIG A FILTER936351
BOWESLAF77521
CANADIAN FILTER CO.CFM8051
CARQUEST876351
CATERPILLAR3I07641
CATERPILLAR3I08951
CATERPILLAR7C83121
CHAMPION LABORATORIESAF77521
CHAMPION LABORATORIESLAF77521
CHAMPION SPARK PLUGHA5181
COOPERSAEM22161
CYCLONEPMA1277521
DELUXE7931
DELUXEAF7931
DONALDSONEBA150048Inter-Cooler , 1
DONALDSONEBA150049Inter-Cooler , 1
DONALDSONP1277521
DONALDSONP1307751
DONALDSONP1320221
DONALDSONP1424491
DONALDSONP1810051
DONALDSONP1820051
DONALDSONSMP1810051
DONALDSONXLP1820051
EUROFILTER11071
FLEETGUARDAA2911and1
FLEETGUARDAF9101
FLEETGUARDAF910M1
FLEETLIFEFA1277521
FLEETRITEAAR82911and1
FLEETRITEAFR89101
FLEETRITEAFR8910M1
FRAM FiltersCA15511
FRAM FiltersFA1549SERIES1
FRAM FiltersHCA15511
GLOBAL FILTERS624381
GM GENERAL MOTORS89966261
GONHERGA57211
GRAINGER4XAJ31
GUARDIAN FILTER CO.G1277521
HASTINGSAF5241
HEAVY DUTY AIRA07751
HEAVY DUTY AIRE07751
HEAVY DUTY AIRE55821
HEAVY DUTY AIRTME07751
KORODY COLYERFPA24381
KRALINATORLA8051
LUBER-FINERLAF77521
MACK57MD211
MACK57MD21A1
MOTORCRAFTFA6921
NAPA GOLD26351
NELSON1307751
NELSON70191N1
NELSON84683C1
NELSON-WINSLOW1307751
NU-TECHN25201
NU-TECHS25201
PURE FLOWPAF57211
PUROLATORA329901
PUROLATORAF29591
PUROLATORAF29901
RACORAFN25201
REFILCOAF26351
WGBSA4461
WIX426351
WOODGATEWGA8431

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.

Brockway, Mack Trucks

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.