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BALDWIN · Engine Air Filter

RS4637

Conical-Shaped Radial Seal Inner Air Element

$164.70
Dealer price · CAD per each · price checked September 11, 2026
Belleville APCCall for availability
Kingston APCCall for availability

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
Conical-Shaped Radial Seal Inner Air Element
Outside diameter
3 1/2 in.
Outside diameter (mm)
88.9
Inside diameter
5 1/32 in.
Length
15 11/32 in.
Length (mm)
389.7
Manufacturer part number
RS4637
GTIN
00791440065376

Baldwin replacement references: International 3532800-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 RS4637. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

29 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
BALDWIN FILTERSRS46371
BIG A FILTER948711
CARQUEST888711
CHAMPION LABORATORIESLAF91021
DONALDSONP6092391
FLEETGUARDAF257321
FLEETRITEAFR8257321
FLEETRITEFLRTAF257321
FRAM FiltersCA9346SY1
GONHERGA798R1
GRAINGER2NTW41
HASTINGSAF23581
IHC INTERNATIONAL HARVESTER3532800C11
KRALINATORLA68711
LUBER-FINERLAF91021
NAPA GOLD68711
NAPA GOLD6871P1
NAPA X6871P1
NELSON870728A1
NELSON870728N1
SAKURAA54421
SAKURAA5444SInner1
SURE FILTER TECHNOLOGYSFA6503SETInner1
SURE FILTER TECHNOLOGYSFA9239S1
WIX468711
WIX46871P1
WIX5468711
WIXMA15201
WIX EUROPE46871P1

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 Buses, 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.