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Service bulletins for the 2005 Kenworth W900

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

20 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
42-0702026-10-17. Service bulletin. UNKNOWN OR OTHER. Due to supplier constraints, an authorized aftermarket surge tank has been made available.
P0012026-09-29. Service bulletin. ENGINE. "Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes. 2 chassis added to the chassis list. Peterbilt: Dealers should check the chassis list and SIR weekly for VIN changes. 10 chassis added to the chassis list."
02-1602021-03-10. Service bulletin. VISIBILITY; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
32-0152020-07-03. Service bulletin. ELECTRICAL SYSTEM. Information Only: This bulletin provides dealers with a battery warranty quick reference guide to ensure the appropriate tests for battery warranty are performed in order to prevent battery warranty claims filed with incorrect or incomplete information.
34-0852020-04-03. Service bulletin. VEHICLE SPEED CONTROL; ELECTRICAL SYSTEM. Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed, which may lead to water intrusion and corrosion in some vehicles.
32-0162020-04-03. Service bulletin. EQUIPMENT. Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment damage.
DOR-W5T2V-012020-01-13. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY. This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect alignment pins and knobs. The alignment pins may be weak which cause them to break and knob material may be weak which could cause them to break. Breaking of the alignment pins or knob could prevent adjustment of the climate control system.
01-0752019-12-04. Service bulletin. ENGINE AND ENGINE COOLING. Information Only: This bulletin provides guidance for repairing an air-conditioning system after internal failure of the A/C compressor.
TIB-13-0402015-03-11. Service bulletin. SUSPENSION:MULTIPLE AXLE. KENWORTH: SOME TRUCKS FAILED TO MEET COMPANY STANDARDS FOR AIR VOLUME LIFT AXLE AND THE COMPANY WILL INCREASE AIR VOLUME FOR WORTHWHILE IMPROVEMENT TO EXCEED GOVERNMENT FMVSS 121. MODEL T800, W900. *PE
TIB-E-0552012-08-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. KENWORTH: OIL COLLECTION AT CAC INTAKE PIPE IS CAUSED BY AN IMBALANCE IN TURBOCHARGER PRESSURES. MODELS T660, T800, T700, AND W900. *PE
TIB-E0112011-08-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. PACCAR: ENGINEERING STANDARDS HAVE CHANGED AND THERE ARE NOW ENGINES WITH HEAT TREATED BOLTS. *RM
TIB-E-0092011-08-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. PACCAR: A SOFTWARE UPDATE IS CAUSING THE CHECK ENGINE LIGHT TO COME ON. *RM
TIB-43-142009-01-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH CHASSIS SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CLEAN GAS INDUCTION (CGI) GASKET CAMPAIGN. CSC LETTER WAS RECEIVED. CHASSIS MODELS AFFECTED T2000, T660,T800 AND W900. MODEL YEARS 2005-08 *PE
TIB-41-122009-01-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. KENWORTH TRUCKS: THE INLET PIPE CONNECTIONS FOR ISX ENGINES. THE KENWORTH AIR INLET PIPE TO THE ISX TURBO MAY BECOME DETACHED. CHASSIS AFFECTED T2000, T800, AND W900. MODEL YEARS UNKNOWN. *PE
TIB-44-172009-01-28. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH TRUCKS: REDUCED ENGINE POWER FROM FUEL STARVATION. ANY MODEL KENWORTH EQUIPPED WITH THE 2007 EMISSIONS COMPLIANT ISX ENGINE AND OPTIONAL DAVCO 382 FUEL FILTER, BUILT PRIOR TO 8/11/08, *PE
43-122008-09-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. KENWORTH (PACCAR CO): CLEAN GAS INDUCTION (CGI) FLEX PIPE INSPECTIONS. CHASSIS WITH CATERPILLAR 2007 EMISSIONS COMPLIANT ENGINES, C9, C13 OR C15, SHOULD HAVE THE CGI FLEX PIPE INSPECTED FOR DAMAGE. MODEL YEARS UNKNOWN. *PE UPDATED 1/15/09. MODEL T2000, T660, T800 AND W900; YEARS 2005-2008. *PE UPDATED 1/27/09. CSC LETTER WAS RECEIVED. *8PE
02942006-09-21. Service bulletin. STRUCTURE:BODY:HOOD. W900L HOOD RIB CRACKS. KENWORTH. *TT
02962006-09-12. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. STAINLESS STEEL MIRROR BRACKET - MIRROR ADJUSTMENT ANGLE CORRECTION. CUSTOMERS HAVE COMPLAINED THAT THEY CANNOT ADJUST THEIR MIRROR(S) TO THE DESIRED POSITION, EVEN AFTER ADJUSTING THE MIRROR HEAD TO THE END OF THE BRACKET SLOT(S). *TT
02972006-08-22. Service bulletin. STRUCTURE:BODY:HOOD:HINGE AND ATTACHMENTS. SEVERE SERVICE HOOD SUPPORT MISADJUSTMENT. THE TUBULAR BRACKET IN THE SEVERE SERVICE HOOD SUPPORT SYSTEM MAY CRACK OR BREAK IN THE WELD AT THE HOOD SUPPORT PAD ATTACHMENT IF THE SUPPORT PADS ARE ADJUSTED TOO HIGH ON THE TUBULAR BRACKET. *TT
52202005-11-19. Service bulletin. STRUCTURE. NEW INTERIOR DIAGNOSTIC TIPS. THE KENWORTH NEW CAB INTERIOR INTRODUCED IN 2005 HAS MANY PERFORMANCE FEATURES THAT ARE DIFFERENT. KENWORTH. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.