2021 Paccar MX-13

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11009718EPA21 Pack 2 Injectors Newly designed fuel injectors are available for EPA2021 compliant PACCAR MX-series engines to optimize engine performance. Injectors must be replaced as a full set (6 injectors) and associated software must be updated at the same time.
• 11008567Fix As Fail Part number 2200138 DPF Pressure Sensor has been added to the parts table for the following PACCAR MX engines: EMY2021 MX13-1 EMY2022 MX13 EMY2020 MX13-2 EMY2021B MX13-1 Part number 2236409 NOx Sensor before catalyst been added to the parts table for PACCAR MX13-1 EMY2020 Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act, 1999 (CEPA)), a letter has been provided to owners of Canadian registered chassis that provides a list of emissions components that have been reported (to ECCC) as having a defect.
• 11000768Diagnostic flow path added to the bulletin: Direction to follow "Valve train noise, excessive valve lash, and/or excessive wear metals in oil pan or oil filter." SRT codes B24-10A, B24-10B, and B24-10C included to replace previous SRT codes. Link to webcast "A New Approach to Maximizing Uptime: Prognostics" added to Links section.
• 10254155Certain chassis that completed the E310 software update and received the specified in-tank additive may require additional doses of the in-tank additive. This bulletin covers additional additive eligibility criteria and filing.
• 10254150Chassis identified by PACCAR through the connected truck prognostic program have potential for failure due to camshaft wear. PACCAR will proactively contact the customers with chassis identified in this campaign. Chassis equipped with PACCAR MX13 EMY17-20 engines built prior to 04/19/2019 or MX13 EMY19-21 built on or after 04/20/2019 will be identified through the use of the connected truck prognostic program. Only trucks with an active standard warranty or active, applicable extended warranty will be included in this campaign.
• 10214855Info Only: LIN hybrid switch harnesses are available to order from PACCAR Parts.
• 10213098An EPA21 MX fuel injector cleaning procedure is available. The attached document details the fuel injector cleaning procedure and helps to determine when it is necessary to replace the injectors.
• 10201965Fix-As-Fail Due to undersupply issues, only a limited supply of Diesel Exhaust Fluid (DEF) sensors are available. As a temporary solution, after PACCAR confirms a DEF sensor is not available, a temporary software update will allow a vehicle to continue operation with a failed DEF sensor by disabling the DEF sensor diagnostics.
• 10199943Emissions Recall - PACCAR MX-13 Engine Model Year 2015B engines require a software update to ensure emissions compliance for On-Board Diagnostic (OBD).
• 10198761Information Only C hassis equipped with MY2021 B EPA emission s standards will be shipped through atleast the end of the 2021 calendar year without particulate matter (PM) sensors installed .
• 10194783Alternative PACCAR Approved Counterbore Tool Availability and new Indicator Block
• 10186777Non-Safety Campaign Certain PACCAR MX-13 EPA17 cylinder head bolts require an additional 90 rotation. This additional rotation significantly reduces the occurrence of cylinder liner fretting.
• 10186757Information Only PACCAR MX-13 and MX-11 Cylinder Head Leak Decay kits are now available. Procedures are available in RMI and supporting SRTs are published.
• 10185192Information Only: A new tool, torque adapter, required to support an upcoming campaign to retorque head bolts is available for dealer purchase.
• 10180725Information only: Peterbilt has determined that certain Models 567 and 579 vehicles built between July 06, 2012 and March 27, 2020 with the PACCAR MX-13 Engine may experience an overspeed lamp illuminating during a smoke opacity test. If the lamp illuminates, it is not an indication of a problem with the vehicle but may cause the inspector to not allow the vehicle to operate in California.

Every Paccar MX-13 model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.