TSB: HARLEY-DAVIDSON FLDE, FLHC, FLHCS, FLHTK, FLHTK ANV, FLSB, FLSL, FXBB, FXBR, FXBRS, FXBRS ANX, FXFB, FXFBS, FXLR, FXLRS, FXSE, TOURING, TRIKE (2017–2020)

Bulletin M1509 — February 13, 2020

Bulletin Details

Bulletin IDM1509
ManufacturerHARLEY-DAVIDSON
ModelsFLDE, FLHC, FLHCS, FLHTK, FLHTK ANV, FLSB, FLSL, FXBB, FXBR, FXBRS, FXBRS ANX, FXFB, FXFBS, FXLR, FXLRS, FXSE, TOURING, TRIKE
Model Years2017–2020
Date IssuedFebruary 13, 2020
Date Added to NHTSAMarch 6, 2020
ComponentENGINE AND ENGINE COOLING
Vehicles Affected126 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

SERVICE BULLETIN M1509: MILWAUKEE-EIGHT CYLINDER FLANGE NUT USAGE. To Inform dealers of a service manual change. This change affects the flange nut attaching the cylinder/cylinder head assembly to the cylinder stud in all MKE-8 (Milwaukee-

Affected Vehicles

MakeModelYearComponent
HARLEY-DAVIDSON FLDE 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLDE 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLDE 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHC 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHC 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLHC 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHCS 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHCS 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLHCS 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLSB 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLSB 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLSB 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLSL 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLSL 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FLSL 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBB 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBB 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FXBB 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBRS 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBRS 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FXBRS 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXFBS 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXFBS 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FXFBS 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXLR 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXLR 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FXLR 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXLRS 2020 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXLRS 2020 350000 EQUIPMENT
HARLEY-DAVIDSON FXLRS 2020 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLDE 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLDE 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLDE 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHC 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHC 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLHC 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHCS 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHCS 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLHCS 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLSB 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLSB 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLSB 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLSL 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLSL 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FLSL 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBB 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBB 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXBB 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBR 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBR 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXBR 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBRS 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBRS 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXBRS 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXFB 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXFB 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXFB 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXFBS 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXFBS 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXFBS 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXLR 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXLR 2019 350000 EQUIPMENT
HARLEY-DAVIDSON FXLR 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON TOURING 2019 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON TOURING 2019 350000 EQUIPMENT
HARLEY-DAVIDSON TOURING 2019 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHC 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHC 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FLHC 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHCS 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHCS 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FLHCS 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK ANV 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK ANV 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK ANV 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLSB 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLSB 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FLSB 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBB 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBB 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXBB 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBR 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBR 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXBR 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBRS 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBRS 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXBRS 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXBRS ANX 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXBRS ANX 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXBRS ANX 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXFBS 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXFBS 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXFBS 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXLR 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXLR 2018 350000 EQUIPMENT
HARLEY-DAVIDSON FXLR 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON TOURING 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON TOURING 2018 350000 EQUIPMENT
HARLEY-DAVIDSON TOURING 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON TRIKE 2018 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON TRIKE 2018 350000 EQUIPMENT
HARLEY-DAVIDSON TRIKE 2018 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK 2017 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK 2017 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FLHTK ANV 2017 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FLHTK ANV 2017 350000 EQUIPMENT
HARLEY-DAVIDSON FLHTK ANV 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON FXSE 2017 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON FXSE 2017 350000 EQUIPMENT
HARLEY-DAVIDSON FXSE 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON TOURING 2017 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON TOURING 2017 350000 EQUIPMENT
HARLEY-DAVIDSON TOURING 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY
HARLEY-DAVIDSON TRIKE 2017 060000 ENGINE AND ENGINE COOLING
HARLEY-DAVIDSON TRIKE 2017 350000 EQUIPMENT
HARLEY-DAVIDSON TRIKE 2017 356000 EQUIPMENT ADAPTIVE/MOBILITY

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized HARLEY-DAVIDSON dealer. Bring this bulletin ID (M1509) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.