PAI Industries, Inc. Thermostat Part No: 181838
$23.97
The PAI Industries 181838 Thermostat (173 °F) is a direct OE replacement for Cummins 855 88NT (LFC) engines with idler setups. Designed to meet or exceed OEM specs, it ensures precise temperature control, improved cooldown management, and durable service under heavy-duty use. Backed by PAI’s 2-year unlimited-mileage warranty and sold by Wofford Truck Parts, it delivers dependable performance in harsh diesel environments for work trucks and classic rebuilds alike.
Specifications
The PAI 181838 Thermostat is engineered specifically for Cummins 855 88NT (LFC) engines with idler configurations. Functioning as a vital engine cooling component, it opens at 173°F to regulate coolant flow—preventing overheating and promoting efficient engine warm-up and shutdown. Built with robust materials and precision engineering, this thermostat maintains consistent performance even under demanding conditions and meets or exceeds original equipment standards. It replaces Cummins OE part 3064454 and includes cross-reference compatibility with Cummins 3051087 and Interstate-McBee M-3064454. Backed by PAI’s 2-year warranty, this part ensures reliable, long-lasting engine cooling and excellent OEM fitment for legacy 855-series diesel engines.
Compatibility
Freightliner FL Series / Classic – late 1970s to mid-1990s
Kenworth W900 / T800 – late 1970s to mid-1990s
Peterbilt 359 / 379 – late 1970s to mid-1990s
International 9000 / 9200 / 9400 series – early- to mid-1980s to mid-1990s
Mack CH Series – 1980s to early-1990s (when equipped with Cummins 855)
Western Star 4800 / 4900 – 1980s to early-1990s
Alternative Part Numbers
- Cummins 3051087
- Cummins 3064454
- Interstate-McBee M-3064454
- PAI 181838
