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EnginePart report

2019 Harley-Davidson Flhxs Engine Problems

Complaints
3about this part
Share
50%of 6 total for the year
Median mileage
12,747miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine of the 2019 Harley-Davidson Flhxs, 50% of the 6 complaints for this model year. Where a mileage was given, the median is 12,747 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“This is my second rear gasket replacement. I had my bike serviced this week. My bike stalls sometimes and I believe it is due to the oil pump issue associated with HD M8 motors 2017 through 2019. I don’t understand whether there is a recall? With so many motorcycles that have had seized motors, blown, gaskets, etc. HD even put out a Service bulletin M1450. Next, they redesigned their oil pump.I can’t wait for a recall and continue to put my life on the line. My understanding is that there is a recall coming. Can you confirm this?”

NHTSA complaint #11768846, filed 2026-10

“I am submitting a second complaint. The first attempt I received a message that said there was an error on the submission. For the second time within 20,000 miles, I am replacing a rear head gasket and various other questionable leaks on my motor has result from the oil pump. There have been numerous complaints on the 2017 to 2019 Harley Davidson M8 oil pump. Harley Davidson even redesigned the oil pump for 2020 to resolve the issues. My motor has stalled at high speeds in the past two times. I understand there is a recall coming. Can you confirm this? …”

NHTSA complaint #11768850, filed 2026-10

“The contact owns a 2019 Harley Davidson Street Glide. The contact stated while riding 70 mph, the contact started smelling smoke coming from the motorcycle. The contact pulled over to the side of road and saw oil spilling from the motorcycle. The contact continued riding until he reached his residence. The contact took the motorcycle to the local dealer who inspected the motorcycle and diagnosed the failure as a base gasket leak and head gasket leak. The contact decided not to have the local dealer repair the motorcycle instead took the motorcycle to an independent mechanic for the repair. …”

NHTSA complaint #11424952, filed 2021-07, 12,747 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2019350%
2018117%
2017229%
2015117%
2014212%

Other parts of the 2019 Harley-Davidson Flhxs

Transmission and drivetrain
3 complaintsEngine cooling
1 complaints

← All problems reported for the 2019 Harley-Davidson Flhxs

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology