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Engine coolingPart report

2005 Triumph Rocket III Engine cooling Problems

Complaints
5about this part
Share
25%of 20 total for the year
Median mileage
7,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the engine cooling of the 2005 Triumph Rocket III, 25% of the 20 complaints for this model year. Where a mileage was given, the median is 7,000 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.

“I have a Triumph Rocket Iii motorcycle. 2005 model year bought it in oct of 2004. It came with a two year unlimited miles warranty. After owning for about one year I started to developed engine noise/vibration, I took it to the dealer/service center where I bought it and they kept denying that it had a problem and that they couldn't detect the noise or vibration. …”

NHTSA complaint #10205325, filed 2007-10, 4,500 miles

“I own a 2005 rocket 3 purchased new. I have experienced many problems as I still am with engine noise (rattling). I had brought this to the dealers attention when first service was performed and was told these sounds were normal . Also the front directional tire was installed from the factory the wrong direction. (dealer replaced tire free of charge). Bike stalls often while stopped(fell over once hurting leg and back) dealer said ecu upgrade was as per Triumph guidelines. …”

NHTSA complaint #10224334, filed 2008-04, 1 miles

“Timing chain, sprockets, blades and tensioner are constructed and engineered under substandard guidelines causing failure of one or all timing components and engine failure which could result in the loss of vehicle control and cause a vehicle crash. Triumph has updated the design and construction of these components in later model years but has not issued a recall for the earlier years containing the faulty components. …”

NHTSA complaint #10205317, filed 2007-10, 30,300 miles

“The contact owns a 2005 Triumph Rocket Iii. The contact stated that the output shaft bearing was installed backwards. This causes the bearing not to receive oil, the output shaft to stop turning, locks the rear tire, and the upper shaft creates a hole in the engine. Furthermore, the failure causes the engine to lose oil and the rear tire to become slippery. The manufacturer is aware of the failure and are repairing the vehicles that were sold overseas, not the ones sold in the united states. …”

NHTSA complaint #10218676, filed 2008-02, 22,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2006111%
2005525%

Other parts of the 2005 Triumph Rocket III

Electrical system
6 complaints
Transmission and drivetrain
5 complaints
Brakes
1 complaints
Engine
1 complaints
Fuel system
1 complaints
Body and structure
1 complaints
Tires
1 complaints

← All problems reported for the 2005 Triumph Rocket III

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