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BALDWIN · Engine Air Filter

RS3708

Radial Seal Outer Air Element

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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
Radial Seal Outer Air Element
Outside diameter
5 13/32 in.
Outside diameter (mm)
137.3
Inside diameter
3 3/16 in.
Length
15 15/32 in.
Length (mm)
392.9
Use with
RS3709
Manufacturer part number
RS3708
GTIN
00791440046375

Baldwin replacement references: Case 128781A1

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 RS3708. Keep any size, quantity or application conditions with the match. A cross-reference alone does not confirm fit on your equipment.

36 manufacturer reference rows

Brand / manufacturerReference numberCondition / noteReference qty
ALSHAMS FILTERSTR67911
BALDWIN FILTERSRS37081
BIG A FILTER946621
CARQUEST886621
CASE128781A11
CASE128783A1Outer, Filter O1
CATERPILLAR3I21431
CHAMPION LABORATORIESLAF81241
DEDAXLF0221
DONALDSONP5369401
EUROFILTER2200591
FIL FILTERHP25961
FLEETGUARDAF255241
FLEETRITEAFR8255241
FRAM FiltersCA98741
GPCFC8011
GRAINGER2KZY91
HASTINGSAF22811
JURA (HIFI)SA160901
KRALINATORLA16081
LUBER-FINERLAF81241
MANN+HUMMELC142301
MCCORMICKMC128781A11
NAPA GOLD66621
PHOENIXNA35331
RADIALFILAP18461
SAKURAA85161
SAKURAA8516SOuter1
SURE FILTER TECHNOLOGYSFA8781P1
SURE FILTER TECHNOLOGYSFA8781SET1
TBFILAR88811
TECFILARS69401
VOXHD69401
WIX466621
WIX5466621
WOODGATEWGA12511

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.

Case 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.