Exhaust Gas Temperature Sensor OEM Number 12598443 WJIECO wjieco EGT Sensor Compatible fit for Chevrolet CMC GM Chevy Sierra Diesel

Purchase precautions

1. Please purchase according to the original OE and OEM numbers of the vehicle. If you are unable to confirm the specific model, please contact us promptly and we will provide guidance within 24 hours. You can also provide the following information about the vehicle in a timely manner (frame number, model year, displacement, engine code, fuel type) so that we can accurately match the appropriate exhaust gas temperature sensor for you. Do not purchase directly without confirming the suitability of the model, as incorrect parts may result in inability to install and use.
2. Before installation, please ensure that the engine and exhaust system are fully cooled down to avoid high temperature burns. When installing, tighten the thread to the specified torque to prevent exhaust gas leakage and signal deviation.
3. After product installation, if there are problems such as engine warning lights, DPF regeneration failure or abnormal temperature signals, please contact us in a timely manner. We will reply within 24 hours and help you troubleshoot and solve the problem.
4. This product is for exclusive use by diesel vehicles with DPF/SCR exhaust aftertreatment systems. Please do not modify or disassemble the sensor probe and connector, as this will affect measurement accuracy and void the warranty.

Product Parameters

1. Product Model and OEM/OE Number: 12598443
2. Part Brand: WJIECO
3. Part Origin: Made in China
4. Packaging size: 15 × 7 ×7 cm
5. Logistics transportation weight (kg): 0.11–0.30 (1pcs)
6. Part Name: Exhaust Gas Temperature Sensor (EGT Sensor / Exhaust Temp Probe)
7. Temperature Range: -40℃ ~ +900℃ (short-term peak); -40℃ ~ +850℃ (continuous operation). Accuracy: ±2.5% of reading or ±3℃ (whichever is greater).
8. Response time: ≤300ms (T63); thermal shock resistant. Probe material: 304 stainless steel, high-temperature sintered thermistor core.
9. Installation: M14×1.5 / M18×1.5 thread (varies by OE), 15±5 N·m torque. Connector: 2-pin / 4-pin OEM matching plug, direct plug-and-play.
10. Protection: IP67; vibration and thermal shock resistant, suitable for harsh under-hood and exhaust environments.

WJIECO Core advantages of the product

1. Strict Quality Control: Manufactured under IATF 16949 automotive quality system, 100% full inspection and high-temperature aging test before shipment, stable performance and long service life.
2. Fast & Accurate: High-sensitivity thermistor chip with ultra-fast thermal response, delivers precise real-time temperature data to ECU for reliable DPF regeneration and emission compliance.
3. Universal Fit: 1:1 reverse-engineered from original OE samples, same thread size, cable length and connector pinout, easy direct replacement, no modification needed, saving installation time.
4. Durable Design: 304 stainless steel probe with braided heat-resistant cable, IP67 protection, resistant to high temperature, corrosion, vibration and thermal shock.
5. OEM Supplier Grade: Supplied to domestic OEMs and European aftermarket distributors, meets Euro 5 / Euro 6 emission standards, compatible with DPF, SCR and DOC exhaust aftertreatment systems.