Specification & Application 

8121468300 (also written 8-12146830-0) is Isuzu engine Intake Air Temperature (IAT) sensor, catalogued as a MAT (Manifold Air Temperature) sensor. It is a two-wire NTC thermistor that measures the temperature of the charge air entering the engine, enabling the ECM to correct

fuel injection quantity, injection timing, boost pressure control, and EGR strategy based on air density.

Related model:

• Case intake air temperature sensor 87378549
• Sumitomo intake air temperature sensor KHH0535 KHH21500
• ISUZU engine 4HK1/6HK1/6UZ1-XYSS intake air temperature sensor 8121468300
• ISUZU engine 4HK1/6HK1-XASS intake air temperature sensor 8973811820
• ISUZU engine 4HK1/6HK1/6UZ1-XKSS intake air temperature sensor 8980653770

Maintain Guidance

The excavator intake air temperature sensor is fitted between the air cleaner and the turbocharger, threaded directly into the intake air pipe or the air cleaner housing.

P0112 (Flash Code 22) IAT Sensor Circuit Low Voltage ECM detects signal voltage < 0.1 V for 3 seconds; equivalent to an indicated intake air temperature warmer than ~148°C — indicates short to ground or a sensor with abnormally low resistance

P0113 (Flash Code 22) IAT Sensor Circuit High Voltage ECM detects signal voltage > 4.85 V for 3 seconds (some calibrations: > 4.8 V); equivalent to an indicated temperature colder than ~−39°C — indicates open circuit, short to voltage, or a sensor with abnormally high resistance

About XCM-PARTS

Xiamen Sincerity Machinery Co., Ltd. is CASE authorized dealer in China, we specialize in full range of genuine Case Sumitomo and Linkbelt Excavator parts, products main include monitor, controller, pressure sensor, wiring harness, hydraulic pump, hydraulic swing motor, hydraulic travel motor, final drive, gearbox reduction, hydraulic repair kits, engine injector, engine turbocharger, engine gasket kit, engine liner kit, engine water pump, engine oil pump, engine overhaul gasket set, etc. which fit to SUMITOMO excavators, CNH excavators, Link-belt excavators.

Over the years, we have actively participated in China’s premier construction machinery exhibitions. These shows serve as vital platforms where we connect with the global engineering community, showcase our premium excavator parts, and stay ahead of market trends. Our consistent presence at these exhibitions has been instrumental in expanding our footprint across high-growth markets. Today, we proudly serve customers in South America, North America, the Middle East, and Russia—regions where our full range of parts and responsive service have earned growing trust and repeat business Whether you are a new contact exploring collaboration or an existing partner seeking continued support, we welcome the opportunity to meet face-to-face at our next show. Let’s build a stronger future together—one project, one part, one partnership at a time.

Why Choose Us

XCM-PARTS company work at excavator after-sales market over 20 years, customer satisfaction is the foundation of our business. We are dedicated to delivering high-quality products, professional support, and timely service that meet and exceed customer expectations. We actively listen to customer feedback, respond quickly to their needs, and continuously improve our products and processes. By building trust and creating lasting value, we strive to establish long-term partnerships with every customer.

FAQ

Does it genuine parts?

Yes, It is genuine Sumitomo sensor.

What brand of Excavator fit to?

It fit to Case Sumitomo and Link-belt excavator.

How can I order it?

I will send invoice with payment information via email.

How do payment?

We accept to T/T, PayPal, Credit Card, Western Union transfer.

What's the delivery time?

Stock products estimated 3-7 days.

Do you have photo for the products?

Yes, we will send you photo before shipping.

Can you offer warranty for your products?

Yes, we offer 1-3 months warranty.

Can i have a sample?

Yes, we offer sample for bulk order.