# Service bulletin SP\-P10681

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.

- Type: Service bulletin
- NHTSA id: 10030387
- Published by NHTSA: 2009\-09\-28
- Manufacturer's number: SP\-P10681
- Manufacturer's date: 2009\-06\-17
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

## NHTSA's summary

MACK TRUCK: UNIT INJECTOR SLEEVE, NBR COMBUSTION WASHER AND UNIT INJECTOR YOKE UPGRADE; CERTAIN ENGINES MAY EXPERIENCE COMBUSTION LEAKAGE AT THE UNIT INJECTOR SLEEVE. MACK TRUCKS, INC HAS AUTHORIZED UPGRADING OF THESE ENGINES WITH UNIT INJECTOR SLEEVES, NBR COMBUSTION WASHERS AND UNIT INJECTOR HOLD DOWN YOKES. NO MODEL OR MODEL YEARS LISTED. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/10030387](/v1/bulletins/10030387)

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