# Service bulletin M1608

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: 10249804
- Published by NHTSA: 2024\-02\-06
- Manufacturer's number: M1608
- Manufacturer's date: 2024\-01\-24
- NHTSA component: POWER TRAIN; ENGINE AND ENGINE COOLING; UNKNOWN OR OTHER; ELECTRICAL SYSTEM

## NHTSA's summary

SERVICE BULLETIN M1608: REVOLUTION MAX VVT SERVICE KIT. PURPOSE: This bulletin informs dealers that an improved Variable Valve Timing \(VVT\) harness connector and terminals are going to be used on 2024 Revolution® Max powered vehicles. The old connector and terminals used on 2021\-2023 Revolution® Max powered vehicles will no longer be supported. Various kits have been created to support dealers in the change over of these parts.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249804-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249804-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Transmission and driveline

## Vehicles listed

- 2021 to 2023 HARLEY\-DAVIDSON RA1250
- 2021 to 2023 HARLEY\-DAVIDSON RA1250S
- 2021 to 2023 HARLEY\-DAVIDSON RH1250S
- 2022 to 2023 HARLEY\-DAVIDSON RH975
- 2023 HARLEY\-DAVIDSON RH975S

JSON: [/v1/bulletins/10249804](/v1/bulletins/10249804)

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