TSB: PACCAR MX-11, MX-13 (2011–2017)

Bulletin 43-059 — May 10, 2019

Bulletin Details

Bulletin ID43-059
ManufacturerPACCAR
ModelsMX-11, MX-13
Model Years2011–2017
Date IssuedMay 10, 2019
Date Added to NHTSAJune 10, 2019
ComponentENGINE (PWS)
Vehicles Affected42 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

Information: This document is intended for UL2 aftertreatment diesel exhaust fluid (DEF) systems and outlines how to store individual components with the intent of being reused after storage. Storage time is not to exceed two years.

Affected Vehicles

MakeModelYearComponent
PACCAR MX-11 2017 060000 ENGINE (PWS)
PACCAR MX-11 2017 350000 EQUIPMENT
PACCAR MX-11 2017 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2017 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2017 350000 EQUIPMENT
PACCAR MX-13 2017 060000 ENGINE (PWS)
PACCAR MX-11 2016 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 2016 350000 EQUIPMENT
PACCAR MX-11 2016 060000 ENGINE (PWS)
PACCAR MX-13 2016 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2016 060000 ENGINE (PWS)
PACCAR MX-13 2016 350000 EQUIPMENT
PACCAR MX-11 2015 060000 ENGINE (PWS)
PACCAR MX-11 2015 350000 EQUIPMENT
PACCAR MX-11 2015 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2015 350000 EQUIPMENT
PACCAR MX-13 2015 060000 ENGINE (PWS)
PACCAR MX-13 2015 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 2014 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 2014 350000 EQUIPMENT
PACCAR MX-11 2014 060000 ENGINE (PWS)
PACCAR MX-13 2014 060000 ENGINE (PWS)
PACCAR MX-13 2014 350000 EQUIPMENT
PACCAR MX-13 2014 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 2013 060000 ENGINE (PWS)
PACCAR MX-11 2013 350000 EQUIPMENT
PACCAR MX-11 2013 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2013 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2013 350000 EQUIPMENT
PACCAR MX-13 2013 060000 ENGINE (PWS)
PACCAR MX-13 2012 080000 FUEL SYSTEM, DIESEL
PACCAR MX-13 2012 060000 ENGINE (PWS)
PACCAR MX-13 2012 350000 EQUIPMENT
PACCAR MX-13 2011 060000 ENGINE (PWS)
PACCAR MX-13 2011 350000 EQUIPMENT
PACCAR MX-13 2011 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 080000 FUEL SYSTEM, DIESEL
PACCAR MX-11 060000 ENGINE (PWS)
PACCAR MX-11 350000 EQUIPMENT
PACCAR MX-13 060000 ENGINE (PWS)
PACCAR MX-13 350000 EQUIPMENT
PACCAR MX-13 080000 FUEL SYSTEM, DIESEL

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What Should You Do?

If your vehicle is affected by this TSB, contact your authorized PACCAR dealer. Bring this bulletin ID (43-059) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.