2018 Harley-Davidson Street Glide Problems & Issues
2018 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Harley-Davidson Street Glide has 2 documented known issues, with 1 rated critical. The most serious is Hydraulic clutch can stop disengaging after an internal actuator leak — recall 18V734.
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Frequently Asked Questions
What are the most common Harley-Davidson Street Glide problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2018 Harley-Davidson Street Glide has 2 documented issues. Documented issues include: Hydraulic clutch can stop disengaging after an internal actuator leak — recall 18V734, Milwaukee-Eight oil sumping can cause power loss or heavy engine braking — bulletin M1450. Of these, 1 is rated critical and should be addressed promptly.
Is the Harley-Davidson Street Glide reliable?
The 2018 Harley-Davidson Street Glide has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Hydraulic clutch can stop disengaging after an internal actuator leak — recall 18V734. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2017-2018 Harley-Davidson Street Glide Hydraulic clutch can stop disengaging after an internal actuator leak — recall 18V734?
Fluid can leak internally past the secondary clutch actuator piston/seal (part numbers 37200131 and 37200131A). If the leak continues, the clutch master cylinder reservoir can lose enough fluid to let air into the hydraulic circuit, and the clutch may not lift enough to disengage… Severity: high.
What is the 2017-2019 Harley-Davidson Street Glide Milwaukee-Eight oil sumping can cause power loss or heavy engine braking — bulletin M1450?
Harley says 2017-2019 Milwaukee-Eight engines can develop sumping during long periods at high rpm or under heavy engine load: too much oil is held in the crankcase and the flywheel has to travel through it. That causes a loss of power or a high degree of engine braking, and poten… Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public motorcycle data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.