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Service bulletin C1763E

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10110298
Published by NHTSA2017-08-04
Manufacturer's numberC1763E
Manufacturer's date2017-03-07
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

This In-Shop Campaign is being issued to address o-ring leaks in certain ISX/QSX CM2250, CM2250 SN, CM2350 Lube Cooler Housings resulting from suspect o-ring material. Certified repair locations are authorized to replace the o-rings on the lube oil cooler housing. This In-Shop Campaign can be completed anytime the unit is in for maintenance or repairs, with certain restrictions on reimbursement. This is an update to a previously submitted communication.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Cooling system

Vehicles listed
CUMMINS ISX15

Listing a model year does not mean every vehicle of it is concerned: the document says which.