2007 Big Dog K-9 Problems
- Complaints
- 5filed with NHTSA
- Median mileage
- 15,611miles, 3 complaints with mileage
- Recalls
- 1campaigns on record
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
Sources: NHTSA records for the 2007 Big Dog K-9 (complaints, recalls, investigations). Report an error
NHTSA recorded 5 consumer complaints for the 2007 Big Dog K-9. The part named most often is tires, with 3 complaints (60% of the total), followed by electrical system (1) and transmission and drivetrain (1). 3 of the complaints include a mileage, and 100% of those were filed for vehicles with under 50,000 miles; the median is 15,611 miles. NHTSA lists 1 recall campaign and 10 technical service bulletins for this model year.
This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.
Which parts are reported most
Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.
- Tires3 60%
- Electrical system1 20%
Example complaints
Tires: “I have an avon cobra 250/40/18 tire mounted on my 2007 Big Dog chopper with approximately 2000 miles on it and it has almost split from on side to the other.”
NHTSA complaint #10498420, filed 2013-02, 17,500 milesElectrical system: “2007 big dog K-9 motorcycle, loss of electrical, head and tail lights, speedometer,horn high beam indicator light, engine shut down and all lights went out while riding at night. The consumer was informed the electric controller shorted out.”
NHTSA complaint #10370228, filed 2010-12Transmission and drivetrain: “The contact owns a 2007 big dog K-9. While driving 65 MPH, the vehicle downshifted from sixth to fourth gear without warning. The dealer inspected the vehicle, but were unable to diagnose the cause of failure. The failure occurred on four occasions. The contact stated that the vehicle has now started to leak oil. The failure mileage was 1,500 and current mileage was 4,100.”
NHTSA complaint #10202092, filed 2007-09, 1,500 milesMileage when problems were reported
100% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 1,500 and 17,500 miles.
Complaints by year filed
Fewer than 15 complaints, too few for a reliable trend.
Recalls and investigations
- 07V580000Dec 18, 2007Structure › BodyCovers: Big Dog K-9 2006–2008, Mastiff 2005–2008, Chopper 2005–2007 +2 more
On certain motorcycles, the rear fender strut attaching bolts can fail allowing the rear fender to detach from the motorcycle.
Recall details for the 2007 Big Dog K-9 → · Check a VIN at nhtsa.gov/recalls
Technical service bulletins
TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 10 on record; the latest 10 are shown.
- 10026469Oct 30, 2008Suspension. Big dog motorcycle: strut bolts replacement. Remove strut bolts and install strut bolt kit p/n 243 000010-00.
- 10026442May 11, 2008Equipment. Big dog motorcycle: electrical side cover contact with belt guard. A wire bundle may protrude into the right electrical side cover.
- 10026833Apr 18, 2008Equipment. Bigdog motorcycle: new primary inspection cover gasket. Install new inspection cover gasket on all 2005-2008 big dog motorcycles.
- 10026428Apr 18, 2008Equipment. Bigdog motorcycles: this letter highlights the difference between the various electronic harness controllers (ehcs). For models years 2005-2009 motorcycles.
- 10027045Apr 11, 2008Equipment. Bigdog motorcycle: hidden shock electrical cover hardware replacement. Electrical side covers may crack or break. 243-000011-00 for all models except 2006 k9. 243-000013-00 for 2006 k9 model.
- 10026614Jan 14, 2008Body and structure. Bigdog motorcycle: rear fender strut bolt remedy. Rear fender strut bolts may fail allowing the fender to detach from the motorcycle.
- 10026245Jan 14, 2008Body and structure. Bigdog motorcycle: rear fender strut bolts on certain motorcycles may fail allowing the fender to detach from the motorcycle.
- 10026832Jan 11, 2008Fuel system. Bigdog motorcycle: fuel tank vent may become flooded with fuel, causing the motorcycle to run poorly due to a fuel mixture that is too rich.
- 10026244May 25, 2007Exterior lighting. Bigdog motorcycle: high beam led indicator will not illuminate and motorcycle will not restart after being shut off.
- 10023092May 18, 2007Vehicle speed control. Bigdog motorcycles - revised speedometer and mount.
Other model years of the Big Dog K-9
| Year | Complaints | Median mi | Recalls | Crash ★ | MPG | Score (50 = typical) | Trend |
|---|---|---|---|---|---|---|---|
| 2007 | 5 | 15,611 | 1 | — | — | — | Not enough data |
Frequently asked questions
How many NHTSA complaints does the 2007 Big Dog K-9 have?
NHTSA recorded 5 consumer complaints for the 2007 Big Dog K-9 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
What part of the 2007 Big Dog K-9 is reported most often?
Tires is named most often, in 3 complaints (60% of the total), followed by electrical system with 1.
Has the 2007 Big Dog K-9 been recalled?
NHTSA lists 1 recall campaign for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.
At what mileage are problems with the 2007 Big Dog K-9 reported?
Among the 3 complaints that include a mileage, the median is 15,611 miles and the middle half falls between 1,500 and 17,500 miles; 100% were filed for vehicles with under 50,000 miles.
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.