VehicleVerdict

2014 Peterbilt 337 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 2 complaints on file for the 2014 Peterbilt 337 — too few to judge reliability from owner reports alone — but 6 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

2

NHTSA complaints

6

Recalls

1

Investigations

0

Crash-involved

0

Fires reported

0

Injuries

0

Deaths

NCAP overall

How does 2014 compare to other 337 years?

337 NHTSA complaints by model year, 2014 highlighted4 complaints2008: 0 complaints2009: 0 complaints2010: 0 complaints2011: 0 complaints2012: 0 complaints2013: 0 complaints2014: 2 complaints2015: 0 complaints2016: 4 complaints2017: 0 complaints2018: 0 complaints2019: 0 complaints2020: 0 complaints2021: 0 complaints2022: 0 complaints2023: 0 complaints
337 NHTSA complaints by model year, 2014 highlighted. Red bars are years to avoid.

See all 337 years to avoid →

What are the most common 2014 Peterbilt 337 problems?

ComponentComplaintsShare
Brakes2100%

Does the 2014 Peterbilt 337 have recalls?

6 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

20V199000Electrical SystemApril 6, 2020 · 460,515 units

Defect

PACCAR Incorporated (PACCAR) is recalling certain 2008-2019 Peterbilt 330, 335, 337, 340, 348, 365, 367, 384, 386, 387, 388, 389, 567, 579 and 587 vehicles and 2008-2020 Kenworth T170, T270, T370, T660, T680, T800, T880, and W900 vehicles equipped with NAMUX Software. In the event that the Anti-lock Brake System (ABS) loses battery and/or ignition power to the controller, the dash warning light for the ABS may not illuminate to warn the driver of the loss of ABS. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems," and 136, "Electronic Stability Control System on Heavy Vehicles."

Consequence

If the driver unknowingly operates the vehicle without the ABS functioning, there would be an increased risk of a crash.

Remedy

PACCAR will notify owners, and dealers will update the NAMUX software within the cab control module, free of charge. PACCAR issued owners an interim notification on June 4, 2020. The recall began May 26, 2020. Owners may contact Kenworth customer service at 1-425-828-5888 or Peterbilt customer service at 1-940-591-4220. PACCAR's number for this recall is 20pbc AND 20KWB.

15V365000Seat BeltsJune 10, 2015 · 37 units

Defect

Rush Truck Centers of Texas, LP (Rush), doing business as Custom Vehicle Solutions, is recalling certain modified 2011-2016 Peterbilt 337 trucks manufactured March 26, 2010, to March 9, 2015, modified 2013-2015 Peterbilt 348 trucks manufactured May 14, 2012, to March 25, 2014, and modified 2014 Peterbilt 382 trucks manufactured on November 1, 2013. The affected trucks, converted from conventional day cabs to crew cabs, may be equipped with seat belt anchorage assemblies that may come unanchored when under load. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 210, "Seat Belt Assembly Anchorages."

Consequence

If the seat belt anchor pulls away, the seat occupant may not be properly secured in the event of a crash, increasing the risk of occupant injury.

Remedy

Rush will notify owners, and dealers will repair the vehicles free of charge. The recall began on, July 16, 2015. Owners may contact Rush customer service at 1-713-766-3007.

15V309000EngineMay 26, 2015 · 4,823 units

Defect

PACCAR Incorporated (PACCAR) is recalling certain model year 2010-2016 Kenworth T440, T800, and W900 trucks manufactured August 31, 2009, to April 20, 2015, and 2008-2015 Peterbilt 320, 337, 348, 365, 382, and 384 trucks manufactured July 27, 2007, to April 28, 2015, and equipped with certain Cummins Westport ISL G engines. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Consequence

If engine oil comes into contact with a hot surface, there is an increased risk of a fire.

Remedy

Cummins will notify owners on behalf of PACCAR, and Cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ECM) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact Kenworth customer service at 1-425-828-5000, Peterbilt customer service at 1-940-591-4000 or Cummins Inc. at 1-800-343-7357. PACCAR's number for this recall is 15KWH and 515-G.

14V283000AirbagsMay 29, 2014 · 1,705 units

Defect

PACCAR Incorporated (PACCAR) is recalling certain model year 2010-2015 Peterbilt 579, 388, 384, 367, 365, 348, and 337 trucks manufactured October 30, 2009, through May 21, 2014. In the affected vehicles, if power is interrupted to the seat electronic control unit (ECU), such as when the fuse for that circuit blows, the side air bag would be disabled but there will not be a warning lamp indicator to notify the operator of the malfunction.

Consequence

Without a warning of a problem existing in the side air bag system, the driver may continue to operate the vehicle, increasing the risk of injury from the side air bag not deploying in the event of a rollover.

Remedy

PACCAR will notify owners, and dealers will install a new electrical harness to correct them problem, free of charge. The recall began in July 2014. Owners may contact Peterbilt customer service at 1-940-591-4220. Paccar's number for this recall is 514-F.

14V013000Seat BeltsJanuary 24, 2014 · 10,414 units

Defect

PACCAR Incorporated (PACCAR) is recalling certain model year 2014 Kenworth T660, T680, T700,T800, T880, W900, T440, T470, T370, T270, T170, C500, and C550 chassis manufactured between August 7, 2013, and October 31, 2013, and Peterbilt 320, 325, 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, and 587 chassis manufactured between August 7, 2013, and November 3, 2013, and equipped with IMMI-brand L9 seat belt buckles. When the button is pressed to release the seat belt, the latch plate can become partially engaged with the buckle, making the seat belt difficult to unlatch. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 209, "Seat Belt Assemblies."

Consequence

If the latch plate remains partially engaged after the button is pressed, egress from the vehicle could be hindered which would increase the risk of injury in the event of an emergency.

Remedy

PACCAR will notify owners, and dealers will inspect and replace the seat belt buckles, as necessary, free of charge. The recall began on March 31, 2014. Owners may contact PACCAR at 1-425-468-7400. Kenworth's number for this campaign is 14KWC. Peterbilt's number for this campaign is 114-B.

13V222000Electrical SystemMay 28, 2013 · 1,773 units

Defect

PACCAR is recalling certain model year 2014 Kenworth T170, T270, T370, T470, T660, T680, T800, T880, and W900 trucks manufactured May 6, 2013, through May 17, 2013; and model year 2014 Peterbilt 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, 389K, 567, 579 and 587 trucks manufactured May 1, 2013 through May 17, 2013. An internal defect in the ignition switch causes the starter to engage when a key is partially inserted, before the key is turned.

Consequence

Unintended engine startup could cause injury to a person working in the engine compartment. Vehicles with standard transmissions may experience unexpected movement, which may result in personal injury or a crash.

Remedy

PACCAR will notify owners, and dealers will replace affected ignition switches, free of charge. The recall began on June 14, 2013. Owners may contact Kenworth at 1-425-828-5000 or Peterbilt at 1-940-591-4000. Kenworth's recall campaign number is 13KWF. Peterbilt's recall campaign number is 0513-E.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

SUBJECT: DISCREPANT TRACTOR TO TRAILER AIR HOSES MANUFACTURE BY PHILLIP INDUSTRIES. DISCREPANCY: PHILLIP INDUSTRIES AIR HOSES ASSEMBLED WITH NON-PERMANENTLY END FITTINGS FOR EMERGENCY AND SERVICE DO NOT HAVE A PROPER CONNECTION. ROADSIDE INSPECTIONS CONDUCTED AT THE PORT OF ENTRY AT BROWNSVILLE,…

Complaint filed with NHTSA · Brakes · May 30, 2014

2014 Peterbilt 337 — common questions

Is the 2014 Peterbilt 337 reliable?

The record is thin — 2 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 6 recalls should be verified as completed.

Does the 2014 Peterbilt 337 have recalls?

Yes — NHTSA lists 6 recall campaigns affecting the 2014 Peterbilt 337. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2014 Peterbilt 337 under NHTSA investigation?

NHTSA opened one investigation into this model year; all are now closed.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.