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81SD44 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include body_overall_length: 15.391 INCHES NOMINAL IN, end_item_identification: MACK TRUCK INC;TRUCK;MODEL MS300, largest_outside_diameter: 9.656 INCHES NOMINAL IN, smallest_outside_diameter: 8.656 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2940-01-357-1283, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
81SD44
NSN: 2940-01-357-1283
FSC: 2940
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)
SPECIFICATIONS
body_overall_length15.391 INCHES NOMINAL IN
end_item_identificationMACK TRUCK INC;TRUCK;MODEL MS300
largest_outside_diameter9.656 INCHES NOMINAL IN
smallest_outside_diameter8.656 INCHES NOMINAL IN
NSN2940-01-357-1283
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER ELEMENT,INTAKE AIR CLEANE TITLE COMPONENT PN 81SD44 MFR FILTER ELEMENT,INTAKE
KEY FEATURES
•
BODY OVERALL LENGTH: 15.391 INCHES NOMINAL IN
•
SMALLEST OUTSIDE DIAMETER: 8.656 INCHES NOMINAL IN
•
LARGEST OUTSIDE DIAMETER: 9.656 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OVERALL LENGTH15.391 INCHES NOMINAL IN
SMALLEST OUTSIDE DIAMETER8.656 INCHES NOMINAL IN
LARGEST OUTSIDE DIAMETER9.656 INCHES NOMINAL IN
END ITEM IDENTIFICATIONMACK TRUCK INC;TRUCK;MODEL MS300
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
6609Interchangeable
interchangeable cross-reference
interchangeable
A6609Interchangeable
interchangeable cross-reference
interchangeable
01062055Interchangeable
interchangeable cross-reference
interchangeable
2C2478PInterchangeable
interchangeable cross-reference
interchangeable
133B159Interchangeable
interchangeable cross-reference
interchangeable
13556Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81SD44?
81SD44 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace 81SD44?
There are 20 known substitutes for 81SD44: 6609, A6609, 01062055 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81SD44?
81SD44 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2940-01-357-1283. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026