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PartsTable / COMPONENT / 78731R11
78731R11 ✓ 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

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include bore_type: STRAIGHT, bore_diameter: 1.375 INCHES NOMINAL IN, mounting_position: LEFT, design_characteristics: SINGLE ACTING SINGLE CYLINDER, end_item_identification: TRUCK,LOADSTAR+ NAVISTAR INTERNATIONAL CORP+ MODEL 1700, mounting_type_and_location: FLANGE CENTER SECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-01-184-1154, 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
78731R11
NSN: 2530-01-184-1154
FSC: 2530
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
bore_typeSTRAIGHT
bore_diameter1.375 INCHES NOMINAL IN
mounting_positionLEFT
design_characteristicsSINGLE ACTING SINGLE CYLINDER
end_item_identificationTRUCK,LOADSTAR+ NAVISTAR INTERNATIONAL CORP+ MODEL 1700
mounting_type_and_locationFLANGE CENTER SECTION
port_location_and_quantity1 CENTER SECTION
NSN2530-01-184-1154
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CYLINDER ASSEMBLY,HYDRAULIC BRAK TITLE COMPONENT PN 78731R11 MFR CYLINDER ASSEMBLY,HYDR
KEY FEATURES
•
MOUNTING POSITION: LEFT
•
PORT LOCATION AND QUANTITY: 1 CENTER SECTION
•
DESIGN CHARACTERISTICS: SINGLE ACTING SINGLE CYLINDER
•
BORE DIAMETER: 1.375 INCHES NOMINAL IN
•
BORE TYPE: STRAIGHT
•
MOUNTING TYPE AND LOCATION: FLANGE CENTER SECTION
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING POSITIONLEFT
END ITEM IDENTIFICATIONTRUCK,LOADSTAR+ NAVISTAR INTERNATIONAL CORP+ MODEL 1700
PORT LOCATION AND QUANTITY1 CENTER SECTION
DESIGN CHARACTERISTICSSINGLE ACTING SINGLE CYLINDER
BORE DIAMETER1.375 INCHES NOMINAL IN
BORE TYPESTRAIGHT
MOUNTING TYPE AND LOCATIONFLANGE CENTER SECTION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
3318Interchangeable
interchangeable cross-reference
interchangeable
A-A-59585Interchangeable
interchangeable cross-reference
interchangeable
SKF6318JInterchangeable
interchangeable cross-reference
interchangeable
416821-53-DEInterchangeable
interchangeable cross-reference
interchangeable
GGG-C-1507Interchangeable
interchangeable cross-reference
interchangeable
B107.21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78731R11?
78731R11 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace 78731R11?
There are 15 known substitutes for 78731R11: 3318, A-A-59585, SKF6318J and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 78731R11?
78731R11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2530-01-184-1154. 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