4904050 Exhaust Temperature Sensor | ISO 16750-4 & SAE J1939-Certified Thermocouple for Heavy-Duty Aftertreatment Systems
4904050 Exhaust Temperature Sensor | ISO 16750-4 & SAE J1939-Certified Thermocouple for Heavy-Duty Aftertreatment Systems
COMMERCIAL VEHICLE THERMAL MANAGEMENT 4904050 Exhaust Temperature Sensor SYSTEM
Precision-engineered direct replacement solution for 4904050 Exhaust Temperature Sensor, 20889280, and 20451990 configurations, this heavy-duty thermal probe integrates quadruple-layer mica insulation optimized for aftertreatment system monitoring. The Hastelloy X alloy construction withstands continuous thermal cycling in high-velocity exhaust environments. Rhodium-plated contacts ensure ECU signal accuracy across 2022-2027 commercial vehicles.
Forged M22x1.5 thread matches turbocharger housing specifications. Impact-resistant ceramic coating provides stone chip protection for construction equipment. Yttria-stabilized thermal barrier prevents sensor drift during active regeneration cycles.
ENGINEERING FEATURES
- ▶ Probe Material: Hastelloy X
- ▶ Housing: 310S Stainless
- ▶ Vibration: 28G sustained
- ▶ Seal: IP69K/IP6K9K
- ▶ Insulation: Mica composite
- ▶ Response: 0.82 sec typical
- ▶ Cable: 14AWG shielded
- ▶ Thread: M22x1.5
APPLICATION PROFILE
Direct replacement for 4904050, 20889280, and 20451990. Compatible with 74 7420451990 and 10W09999103 configurations in 2023-2028 heavy-duty trucks. Pre-configured thermal response curve matches OEM calibration protocols. Clockable connector orientation enables 360° installation flexibility in space-constrained engine bays.
4904050 Exhaust Temperature Sensor | ISO 16750-4 & SAE J1939-Certified Thermocouple for Heavy-Duty Aftertreatment Systems
