# Service bulletin TT430

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: 10169951
- Published by NHTSA: 2020\-01\-08
- Manufacturer's number: TT430
- Manufacturer's date: 2019\-12\-10
- NHTSA component: POWER TRAIN; ENGINE AND ENGINE COOLING

## NHTSA's summary

TECHNICAL TIP TT430: TWIN\-COOLED SYSTEM DIAGNOSTICS. PURPOSE: Revision. Updated Basic Operation, Cooling System Pressure Cap, Loss of Coolant from Right Fairing Lower Overflow Hose for all Twin\-Cooled Touring and Trike models with symptoms relating to cooling system issues.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169951-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10169951-9999.pdf)

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

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2016 to 2019 HARLEY\-DAVIDSON TOURING
- 2017 to 2018 HARLEY\-DAVIDSON TRIKE

JSON: [/v1/bulletins/10169951](/v1/bulletins/10169951)

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