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BALDWIN · Cabin Air Filter

PA3945

Cab Air Element

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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
Cab Air Element
Manufacturer part number
PA3945
GTIN
00791440059450

Baldwin replacement references: Hitachi 4206637

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 PA3945. 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 FILTERSPA39451
CARQUEST887061
DONALDSONP5337881
DONALDSONP8144721
FLEETGUARDAF250891
FLEETGUARDAF557811
FLEETRITEAFR8250891
GPCEP52821
GRAINGER4ZUN11
HASTINGSPA39451
HITACHI42066371
HITACHI42977511
HITACHI4S011301
JOHN DEEREAT1160771
KRALINATORLA18561
LUBER-FINERLAF87751
NAPA GOLD67061
SAKURAA27151
SURE FILTER TECHNOLOGYSFA81721
WIX467061
WIX5467061
WOODGATEWGA11941

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.

Hitachi 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.