Heavy-duty trucks, buses and equipment subject the thermostat to constant vibration and long run times. This Gates heavy-duty thermostat is built from heavy-gauge brass and stainless steel with a temperature-sensitive heat motor for consistent valve response.

Gates 34308 Heavy-Duty Thermostat Features:

• 180 Degree F Opening Temperature
• Heavy-Gauge Brass and Stainless Steel Construction
• Factory Calibrated for Accurate Opening and Closing
• Temperature-Sensitive Heat Motor for Consistent Valve Response
• Application Options Apply on Some Vehicles, Check the Fitment Tab Before Ordering
• Sold Individually

Vehicle Applications:

• 2007-2013 American LaFrance Condor 8.3L L6, 8.9L L6
• 2012 American LaFrance ALF Eagle 8.9L L6
• 2006-2009 Autocar LLC. Xpeditor WX 8.3L L6, 8.9L L6
• 2006-2010 Autocar LLC. Xpeditor WXLL 8.3L L6, 8.9L L6
• 2006 Autocar LLC. Xpeditor WXR 8.9L L6
• 2009-2018 Autocar LLC. Xpeditor 8.9L L6
• 2014-2017 Autocar LLC. Xpert 8.9L L6
• 2008-2021 Blue Bird All American RE 8.3L L6, 8.9L L6
• 2008-2009 Crane Carrier Low Entry 8.9L L6
• 2008 El Dorado Axess 8.9L L6
• 2008-2009 El Dorado E-Z Rider II Max 8.9L L6
• 2008-2025 Freightliner M2 106 8.3L L6, 8.9L L6
• 2010-2025 Freightliner M2 112 8.9L L6
• 2012-2025 Freightliner 108SD 8.3L L6, 8.9L L6
• 2012-2025 Freightliner 114SD 8.3L L6, 8.9L L6
• 2015-2019 Freightliner XC Lowered Rail 8.9L L6
• 2015-2025 Freightliner XC Modular Rail 8.9L L6
• 2015-2025 Freightliner XC Raised Rail 8.9L L6
• 2020-2025 Freightliner XC Straight Rail 8.9L L6
• 2019 IC Corporation RE School Bus 8.9L L6
• 2008-2010 International 5500i 8.9L L6, 10.8L L6
• 2008-2009 International 5600i 8.9L L6
• 2014-2015 International 8600 TranStar 8.9L L6
• 2017-2020 International 4400 8.9L L6
• 2017-2020 International 7400 8.9L L6
• 2019 International 4400LP 8.9L L6
• 2019 International 7500 8.9L L6
• 2019-2025 International HV507 8.9L L6
• 2019-2025 International HV607 8.9L L6
• 2020-2024 International HV 8.9L L6
• 2020-2025 International MV 8.9L L6
• 2020-2026 International MV607 8.9L L6
• 2025 International HV609 8.9L L6
• 2007-2014 Kenworth W900 8.9L L6
• 2008 Kenworth T300 8.3L L6
• 2008-2022 Kenworth T370 8.3L L6, 8.9L L6
• 2008-2011 Kenworth T800 8.9L L6
• 2010-2019 Kenworth T270 8.3L L6, 8.9L L6
• 2010-2012 Kenworth T400 8.3L L6, 8.9L L6
• 2013-2018 Kenworth T440 8.9L L6
• 2013-2016 Kenworth T470 8.9L L6
• 2020 Kenworth T880 8.9L L6
• 2023 Kenworth T380 8.9L L6
• 2023 Kenworth T480 8.9L L6
• 2011-2016 Mack LEU 8.9L L6
• 2011-2017 Mack MRU 8.9L L6
• 2012-2019 Mack GU4 8.9L L6
• 2012-2018 Mack GU5 8.9L L6
• 2016-2017 Mack LR600 8.9L L6
• 2019-2021 Mack Granite 8.9L L6
• 2008-2017 Peterbilt 320 8.9L L6
• 2008 Peterbilt 335 8.3L L6
• 2008-2017 Peterbilt 365 8.9L L6
• 2009-2010 Peterbilt 340 8.3L L6
• 2010-2022 Peterbilt 348 8.3L L6, 8.9L L6
• 2010-2015 Peterbilt 384 8.9L L6
• 2011-2021 Peterbilt 337 8.3L L6, 8.9L L6
• 2012-2016 Peterbilt 382 8.9L L6
• 2015-2023 Peterbilt 567 8.9L L6
• 2018-2023 Peterbilt 520 8.9L L6
• 2023 Peterbilt 537 8.9L L6
• 2023 Peterbilt 548 8.9L L6
• 2005-2012 Pierce Mfg. Inc. Custom 8.9L L6
• 2006-2008 Pierce Mfg. Inc. Enforcer 8.9L L6
• 2006-2014 Pierce Mfg. Inc. Saber 8.9L L6
• 2008-2014 Pierce Mfg. Inc. Impel 8.9L L6
• 2008-2014 Pierce Mfg. Inc. Velocity 8.9L L6
• 2009-2014 Pierce Mfg. Inc. Arrow XT 8.9L L6
• 2013-2014 Pierce Mfg. Inc. Dash CF 8.9L L6
• 2009-2010 Spartan Motors Gladiator 8.9L L6
• 2009-2010 Spartan Motors Metro Star 8.9L L6
• 2008-2010 Sterling Truck Acterra 8.3L L6
• 2008-2010 Sterling Truck L7500 8.3L L6
• 2008-2010 Sterling Truck L8500 8.3L L6, 8.9L L6
• 2008 Sterling Truck LT7500 8.3L L6
• 2008 Sterling Truck LT8500 8.3L L6
• 2016 Temsa Bus TS35 8.9L L6
• 2008-2020 Thomas Saf-T-Liner 8.3L L6, 8.9L L6
• 2008 Thomas Transit Liner 8.3L L6
• 2014-2016 Volvo VNM 8.9L L6
• 2012-2023 Western Star 4700SF 8.3L L6, 8.9L L6
• 2013-2022 Western Star 4700SB 8.3L L6, 8.9L L6
• 2024-2025 Western Star 47X 8.9L L6
• 2007 Workhorse R32 8.9L L6