# Service bulletin I\-18\-06 R01

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: 10178882
- Published by NHTSA: 2020\-08\-27
- Manufacturer's number: I\-18\-06 R01
- Manufacturer's date: 2018\-04\-17
- NHTSA component: ENGINE AND ENGINE COOLING; EQUIPMENT

## NHTSA's summary

Indian Motorcycle is actively investigating a potential concern affecting 111 ci engines that have been equipped with the Thunder Stroke 116 ci Stage 3 Big Bore accessory kit. Investigation is currently planned to conclude by 5/7/18, and at that time this communication will be re\-issued with additional information. In the interim, Big Bore Kits and vehicles equipped with kits should not be sold.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10178882-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10178882-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- 2014 to 2018 INDIAN CHIEF
- 2014 to 2018 INDIAN CHIEF CLASSIC
- 2014 to 2018 INDIAN CHIEF DARK HORSE
- 2014 to 2018 INDIAN CHIEF VINTAGE
- 2014 to 2018 INDIAN CHIEFTAIN
- 2017 to 2018 INDIAN CHIEFTAIN CLASSIC
- 2017 to 2018 INDIAN CHIEFTAIN DARK HORSE
- 2017 to 2018 INDIAN CHIEFTAIN ELITE
- 2017 to 2018 INDIAN CHIEFTAIN LIMITED
- 2014 to 2018 INDIAN CHIEFTAN
- 2014 to 2017 INDIAN CHIEFTAN DARK HORSE
- 2014 to 2018 INDIAN ROADMASTER
- 2018 INDIAN ROADMASTER CLASSIC
- 2018 INDIAN ROADMASTER ELITE
- 2014 to 2018 INDIAN SPRINGFIELD
- 2017 to 2018 INDIAN SPRINGFIELD DARK HORSE

JSON: [/v1/bulletins/10178882](/v1/bulletins/10178882)

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