2004 American Ironhorse Slammer: what breaks, and at what mileage
What breaks on the 2004 American Ironhorse Slammer
Only 1 defect report has been filed with NHTSA about the 2004 American Ironhorse Slammer, which is too few to compute mileage percentiles or a risk score. The report reported other engine problem.
When each failure gets reported
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
How reports accumulate
Every report with an odometer reading, cumulative, from 0 to 200,000 miles. A curve that climbs early is a car with early problems, whatever its total.
- Line share of reports filed by that mileage
Every reported failure mode
| Failure mode | System | Reports | With reading | 25th | Median | 75th | Per 1,000 | Typical repair | Severity |
|---|---|---|---|---|---|---|---|---|---|
| Other engine problem | engine | 1 | 1 | — | 669 | — | 4.1 | $300–$4,000 | High |
Rate per 1,000 uses a fleet-size estimate derived from recall paperwork for this exact model year. It is a lower bound. Repair costs are typical independent-shop ranges for the failure, not figures from these reports.
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The odometer reading is the one the owner gave.
Other engine problem
On at least 4 occasions, while riding my motorcycle, the engine simply shut down without warning. This happened at vaious speeds and driving conditions. The last failure nearly resulted in my death, when I lost power on the highway directly in front of a semi tractor trailer. As soon as I reported the failure, the american ironhorse warranty division had the bike transported to an authorized service center, who was unable to isolate the problem. When the failure happened again, the warranty division sent a truck to pick up the motorcycle and return it to the american ironhorse factory in texas. The factory was also unable to diagnose or correct the sporadic engine failures. When I received my motorcycle back this time, the engine failure repeated itself again, when I was driving directly in front of the semi. I do not know if other 2004 slammers have reported this same failure or not, but I am waiting direction from the warrany division once again.
Recalls on the 2004 model year
NHTSA has issued 2 recall campaigns covering the 2004 American Ironhorse Slammer, affecting an estimated 329 vehicles. A recall is a different kind of evidence from a complaint: it is the regulator and the manufacturer agreeing that something has to be fixed, and the fix is free for as long as the car exists.
The campaigns cover electrical system:12v/24v/48v battery and service brakes, hydraulic:foundation components:disc:rotor. Whether the work was actually done on the car in front of you is a question only the VIN can answer, and the manufacturer or NHTSA will answer it free.
One caution about reading these together: a recall usually raises the complaint count for the same part, because owners who read about it go and file. The mileages stay informative; the counts get noisy.
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
2,170 vehicles 2004-08-10- Defect
- On certain motorcycles, the battery (ytx24hl) could fail during operation.
- Consequence
- The battery failure causes the motorcycle engine to stop suddenly, which could result in a crash.
- Remedy
- Dealers will replace these batteries. The recall began september 1, 2004. Owners should contact american ironhorse at 1-817-665-2074.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
2,395 vehicles 2003-12-11- Defect
- On certain motorcycles equipped with optional brake rotor-carriers,the rotor-carriers can crack while in service and possibly break.
- Consequence
- This can cause a partial loss of the brake system or the potential for rotor-carrier detachment, which could result in a crash.
- Remedy
- Dealers will replace the rotor-carrier assembly. Owner notification began january 26, 2004. Owners should contact american ironhorse at 1-817-665-2045.
Recall work is free at a franchised dealer regardless of the car's age. Check the VIN at nhtsa.gov/recalls before assuming it was done.
Every year of the American Ironhorse Slammer
Scores compare each year against other cars of the same model year, so a low number on an older car is a real result and not an artefact of age.
What the reports on file say
The complaints recorded against the 2004 American Ironhorse Slammer are other engine problem (1 report, around 669 miles). With a sample this size these are anecdotes rather than a pattern, and they are shown because somebody looking at this exact car would rather see them than nothing.
Why this page is short
A model year needs about 8 reports before percentiles mean anything, and this one does not have them. Complaint volume tracks how many cars were sold and how long they have been on the road, so a thin page usually means a rare car, a new car, or a car whose owners do not file.
Where this comes from. Every figure above is computed from NHTSA owner complaints and recall records for this exact make, model and year. Complaints are voluntary and self-selected, so treat counts as a floor. The methodology page writes out each formula, and the same numbers are available as JSON.
What breaks at my mileage Compare with another car
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed