2016 Peterbilt 520 technical service bulletins
27 technical service bulletins and manufacturer communications cover the 2016 Peterbilt 520.
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- An upgraded power steering pump is available for certain Model 520 chassis with a RHSU or dual steering...
- Kenworth: Dealers should check the chassis list and SIR weekly for VIN changes
- Info Only Unnecessary starter replacements can result from customer complaints regarding engine starting...
- The service information for Bendix Air Dryer maintenance is being updated to include new procedures.
- Info Only – Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC...
- Fix-As-Fail – Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are...
- An engine software update is required to resolve OBD system readiness, DEF doser diagnostics, and otherOBD...
- The current chassis harness connector contains a wire that is no longer necessary with the latest...
- Information Only – Windshield washer pumps have a high No Trouble Found rate
- Fix-As-Fail
- Fix as Fail: For all conventional models, except 387/587, equipped with Side-of-Cab (“SOC”) exhaust and...
- Information Only:
- Information only: Hendrickson Softek front axle maintenance intervals and requirements.
- Safety Recall Bulletin: Updated with permanent repair path for phase 1 vehicles
- DEF tank covers may become loose and potentially crack on vehicles built before October 2019 with DEF tank...
- Service brakes, air: supply: quick release valve
- Information Only: Proper jump-starting voltage will eliminate high voltage related issues and equipment...
- Information Only – Vehicles may have the connector seals on the wheel speed sensor incorrectly installed,...
- Information Only: Vehicles may have the connector seal on the wheel speed sensor incorrectly installed,...
- Information Only
- Information only: Some model 320 and 520 vehicles built before 3/11/2019 may experience loss or loosening...
- Information Only:
- Fix as Fail: Some model 520 right hand stand up vehicles built before 07/16/19 are experiencing washer...
- Information Only â
- Fix-As-Fail -Â Composite fittings used in the cooling system may crack, resulting in coolant leaks
- Fix-As-Fail: Two separate causes have been identified as root
- Sample Customer Letter
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