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BALDWIN · Cabin Air Filter

PA3939

Cab 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
Cab Air Element
Manufacturer part number
PA3939
GTIN
00791440059351

Baldwin replacement references: Caterpillar 4I1278

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 PA3939. 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 FILTERSPA39391
CARQUEST830831
CATERPILLAR2567414Filter Only1
CATERPILLAR4I12781
CRENLO1281511
DONALDSONP7811761
DONALDSONP951372Metal Frame1
FLEETGUARDAF257871
FLEETGUARDAF557781
FLEETGUARDAF557911
GRAINGER4ZPD11
HASTINGSPA39391
JURA (HIFI)SC90007(4I1278)1
LUBER-FINERLAF90921
MANN+HUMMELCU60881
NAPA GOLD90831
PANCLEANAPG10031
SAKURAA55851
SF-FILTER / SCHUPPSKL460271
WIX490831
WIX5490831
WOODGATEWGA18391

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.

Caterpillar Excavators

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.