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BALDWIN · Engine Air Filter

RS3743

Radial Seal Air Element

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Call either store for your current price.
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Stock checked September 11, 1:46 PM Eastern. Call before travelling so we can confirm what is still available.

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Radial Seal Air Element
Outside diameter
9 21/32 in.
Outside diameter (mm)
245.3
Inside diameter
5 5/32 in.
Length
23 17/32 in.
Length (mm)
597.7
Contains
3 3/32 (78.6) Inch Dust Evacuation Hole
Manufacturer part number
RS3743
GTIN
00791440054370

Inside-Out Flow Direction.;Uses 2 filters per application (left/right housings).

Baldwin replacement references: International 3507421-C1, 3517842-C1

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 RS3743. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

22 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
BALDWIN FILTERSRS37431
BIG A FILTER945071
CARQUEST885071
CHAMPION LABORATORIESLAF95401
DONALDSONP5393311
DONALDSONP5397651
FLEETGUARDAF256941
FLEETRITEAFR8256941
FRAM FiltersCA107681
GPCFC20161
GRAINGER2NUZ11
HASTINGSAF24721
IHC INTERNATIONAL HARVESTER3507421C11
IHC INTERNATIONAL HARVESTER3517842C11
KRALINATORLA19081
LUBER-FINERLAF95401
NAPA GOLD65071
NELSON870957N1
PUROLATORA759241
SAKURAA545001
WIX465071
WIX5465071

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.

International 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.