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EnginePart report

2003 Harley-Davidson Flhtcui Engine Problems

Complaints
3about this part
Share
12%of 26 total for the year
Median mileage
29,705miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine of the 2003 Harley-Davidson Flhtcui, 12% of the 26 complaints for this model year. Where a mileage was given, the median is 29,705 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.

“Engine failure at 30000 and 48700 miles. The first engine failure was paid by me $5479.10. The second engine failure was paid by harley davidson customer relations, thank you harley davidson. The cam shaft tensioner is a known hazard and should be changed at about 25000 miles on all tc 88 engines. Plastic pieces can break off and get in the oil pump breaking the oil pump. Harley davidson should add changing the cam shaft tensioner to their service schedule at every 25000 miles. I will buy a harley davidson again but make sure to service cam tensioner every 25000 miles. …”

NHTSA complaint #10654304, filed 2014-11, 48,700 miles

“My 2003 harley davidson Flhtcui ultra classic had a catastrophic engine failure due to a cam shaft tensioner at 29,705 miles.the engine was rebuilt for $5479.10 dollars. Many motorcycles have had the same problem at about the same mileage. This will cause the engine to stop running. Which can leave the rider stranded in the middle of the roadway. This has happened again at 48,700 miles total engine failure, less then 20,000 miles from the 29,705 miles engine failure. Luckily I was not injured both times. The cam shift tensioner is a known hazard and should be on a recall list. …”

NHTSA complaint #10649238, filed 2014-10, 29,705 miles

“The contact owns a 2003 harley davidson ultra classic Flhtcui. The contact stated while driving 80 MPH on a highway, the vehicle stalled without warning. The contact mentioned that the ehicle was repaired under recall NHTSA campaign number: 04v134000 (electrical system). However, the remedy failed to repair the problem. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 3,000 and the current mileage was 29,000.”

NHTSA complaint #10604620, filed 2014-06, 3,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2005120%
2003312%
1997120%

Other parts of the 2003 Harley-Davidson Flhtcui

Electrical system
17 complaints
Engine cooling
2 complaints
Fuel system
2 complaints
Equipment
1 complaints
Tires
1 complaints
Transmission and drivetrain
1 complaints
Vehicle speed control
1 complaints
Wheels
1 complaints

← All problems reported for the 2003 Harley-Davidson Flhtcui

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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