PA3631Photo not yet available

BALDWIN · Engine Air Filter

PA3631

Inner Air Element

Call for price
Call either store for your current price.
Belleville APCCall for availability
Kingston APCCall for availability

Stock checked September 11, 12:46 PM Eastern. Call before travelling so we can confirm what is still available.

Call Belleville ↗Call Kingston ↗Text your part number ↗

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Inner Air Element
Outside diameter
4 3/32 in.
Outside diameter (mm)
104.0
Inside diameter
25/32 in.
Length
19 5/16 in.
Length (mm)
490.5
Manufacturer part number
PA3631
GTIN
00791440042582

Baldwin replacement references: Kobelco 2446R255-S6

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 PA3631. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

12 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
BALDWIN FILTERSPA36311
CARQUEST835761
DONALDSONP5332341
GPCFC20291
GRAINGER4RGE71
HASTINGSAF11791
KOBELCO2446R255S61
KRALINATORLA16201
NAPA GOLD95761
WIX495761
WIX5495761
WOODGATEWGA1117S1

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.

Kobelco, MDI/Yutani 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.