# Service bulletin TT466

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: 10164800
- Published by NHTSA: 2019\-09\-16
- Manufacturer's number: TT466
- Manufacturer's date: 2019\-08\-20
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

TECHNICAL TIP BULLETIN TT466: UPDATED OIL PUMP FOR MILWAUKEE\-EIGHT ENGINES. PURPOSE: To notify dealers that a new oil pump was put into production on some late 2019 and all 2020 Milwaukee\-Eight® engines, all models. The new oil pumps are retrofittable to all previous years and models that have the Milwaukee\-Eight engine. If replacing the oil pump on 2017 \- 2019 vehicle with a Milwaukee\-Eight engine and pump should only be install as a complete unit. It is important to note that the new oil pumps, or their internal components, are not compatible with old oil pump versions.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164800-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10164800-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2017 to 2019 HARLEY\-DAVIDSON TOURING
- 2017 to 2018 HARLEY\-DAVIDSON TRIKE

JSON: [/v1/bulletins/10164800](/v1/bulletins/10164800)

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