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BALDWIN · Engine Air Filter

PA2733

Inner Air Element with 8 Bolt Holes

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Call either store for your current price.
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Stock checked September 11, 12:46 PM Eastern. Call before travelling so we can confirm what is still available.

THE DETAILS THAT MATTER

FILTER SPECIFICATIONS.

Filter type
Inner Air Element with 8 Bolt Holes
Outside diameter
6 1/4 in.
Outside diameter (mm)
158.8
Inside diameter
4 5/8 in.
Length
16 7/32 in.
Length (mm)
412.0
Manufacturer part number
PA2733
GTIN
00791440022201

Baldwin replacement references: Caterpillar 8N6883

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 PA2733. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

23 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
AIR REFINERARM5218471
AMERICAN PARTS946291
BALDWIN FILTERSPA27331
BIG A FILTER946291
CARQUEST886291
CATERPILLAR1W3894Inner, Filter O1
CATERPILLAR8N68831
CATERPILLAR8N6884Inner, Filter O1
CATERPILLAR8N9458Inner, Filter O1
DONALDSONP1483511
DONALDSONP5218471
FLEETGUARDAF47691
FLEETRITEAFR847691
FRAM FiltersCA233SY1
GRAINGER4ZWD91
HASTINGSAF21721
KRALINATORLA12881
NAPA GOLD66291
NELSON70867N1
PUROLATORA648901
WIX466291
WIX5466291
WOODGATEWGA903S1

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 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.