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#BS-2008-KENT66-4845

2008 Kenworth T660

Based on reports from 3 owners and 14 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

🟢

Preliminary Verdict

Proceed with Caution

Based on 3 complaints, 1 crashes, 1 fires, and 14 recalls.

See full verdict with buy/skip conditions

Preview: What's in your full report

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Mechanic Inspection Checklist

!Check the Engine And Engine Cooling:engine:dieselHIGH

2 owners reported engine and engine cooling:engine:diesel issues — failures commonly reported around 32K miles.

!Inspect the ElectricalMED

Look for symptoms of wear and premature failure

+ 3 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Engine And Engine Cooling:engine:diesel (2 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Engine And Engine Cooling:engine:diesel2 (67%)

Electrical1 (33%)

2008 Kenworth T660: Known Issues & Problem Areas

Engine And Engine Cooling:engine:diesel Issues

Engine And Engine Cooling:engine:diesel complaints account for 67% of all reports filed for the 2008 Kenworth T660, with 2 owners filing complaints with NHTSA. The median mileage at time of complaint is 32,000 miles, suggesting issues tend to surface around the 32K-mile mark.

Electrical Issues

Electrical complaints account for 33% of all reports filed for the 2008 Kenworth T660, with 1 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Don't negotiate blind — know what this car costs to own

Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (14 recalls)

07V195000Jun 2007

ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

ON CERTAIN TRUCKS BUILT WITH CUMMINS C15 OR ISX ENGINES AND EQUIPPED WITH HORTON ENGINE FANS, DURABILITY TESTING REVEALED MICRO CRACKS IN THE FAN BLADES.

07V269000Sep 2007

TRAILER HITCHES

ON CERTAIN TRUCKS, THE REMOVABLE TOW HITCH ,WHEN USED TO TOW OR LIFT A VEHICLE, CAN FAIL DUE TO DEFECTIVE MATERIAL IN THE TOW HITCH.

07V591000Jan 2008

STEERING:GEAR BOX:SHAFT SECTOR

ON CERTAIN KENWORTH AND PETERBILT HEAVY DUTY TRUCKS EQUIPPED WITH TAS-85 TRW STEERING GEARS, THE INNER SURFACE OF THE OUTER SECTOR SHAFT TEETH OF THE STEERING GEARS MAY HAVE AN INCORRECT INVOLUTE PROFILE, WHICH MAY LEAD TO CHIPPING AND DAMAGE OF THE GEARING SYSTEM.

08V065000Mar 2008

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

PACCAR IS RECALLING 6,169 MY 2008 KENWORTH T300, T660, T800, T2000, W900 AND C500 VEHICLES AND MY 2008-2009 PETERBILT MODELS 365, 367, 384, 387, 388, 389 AND 389 KITS. CERTAIN DOOR LATCH ASSEMBLIES ON THESE VEHICLES FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 206, 'DOOR LOCKS AND DOOR RETENTION COMPONENTS." THE ROTOR IN SOME OF THESE DOOR LATCH ASSEMBLIES DID NOT RECEIVE THE PROPER HEAT TREATMENT AND MAY BE SOFT.

08V128000Apr 2008

PARKING BRAKE:CONVENTIONAL:AIR

PACCAR IS RECALLING 1,043 MY 2008-2009 KENWORTH C500, T2000,T660, T800 AND W900 TRUCKS EQUIPPED WITH BENDIX MV-3 DASH CONTROL VALVES. THE MOLDED VALVE BODY HAS AN INCORRECT CORE PIN IN THE INJECTION MOLD CAUSING THE VALVE BODY TO BE OVERSIZED IN THE DOUBLE CHECK VALVE AREA. THIS CONDITION CAN ALLOW THE RUBBER DOUBLE CHECK VALVE TO BECOME LODGED IN THE BODY OPENING UNDER CERTAIN CIRCUMSTANCES.

+ 9 more recalls in the full report

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 3 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 14 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Kenworth T660 Model Years

2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004

View all Kenworth T660 years →

2008 Kenworth T660: Frequently Asked Questions

What is the most common problem with the 2008 Kenworth T660?

The most commonly reported issue with the 2008 Kenworth T660 is related to the engine and engine cooling:engine:diesel, with 2 complaints filed with NHTSA.

Is the 2008 Kenworth T660 reliable?

The 2008 Kenworth T660 has 3 complaints, 1 crash reports, and 1 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.

How much does it cost to fix 2008 Kenworth T660 problems?

Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.

Does the 2008 Kenworth T660 have any recalls?

Yes, the 2008 Kenworth T660 has 14 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Kenworth T660 problems start?

Based on 1 complaints with mileage data, the median mileage at time of complaint is 32,000 miles. The highest concentration of reported issues occurs in the 30–60K mile range. The full report breaks down exactly which components fail at each mileage bracket.

What’s in the full report?

10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.

How is this different from free NHTSA data?

NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.

How is this different from Carfax?

Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.

What if the report isn’t useful?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.

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10 sections of AI analysis based on 3 owner reports. Know before you buy.

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