
Product Overview
This high-performance Intake Air Temperature (IAT) Sensor is engineered for Isuzu 4HK1 and 6HK1 diesel engines, specifically used in Komatsu ZW220, ZW250, and ZX110-3 excavators. As a leading global supplier of heavy machinery parts, we ensure this critical sensor meets or exceeds OEM specifications, guaranteeing reliable engine management and optimal fuel efficiency. We specialize in direct B2B supply with seamless worldwide shipping to major industrial markets.
Key Features & Benefits
- Precision Engine Management: Provides accurate air temperature readings to the Engine Control Unit (ECU), enabling optimal fuel injection timing and air-fuel ratio for maximum performance and reduced emissions.
- Enhanced Durability: Manufactured with high-grade materials and robust connectors to withstand the extreme temperatures, vibrations, and contaminants present in heavy-duty excavator engine bays.
- Direct OEM Replacement: Designed as a plug-and-play component, ensuring perfect fitment and electrical compatibility without requiring modifications, saving on installation time and labor costs.
- Improved Fuel Economy & Power: Correct sensor operation is crucial for maintaining engine efficiency, directly impacting operational costs by preventing over-fueling and power loss.
- Reliability for Critical Operations: Helps prevent engine fault codes, poor performance, and unnecessary downtime, ensuring your excavator remains productive on demanding job sites.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 8-12146830-0 |
| Alternate Part Number | 8121468300 |
| Part Type | Intake Air Temperature (IAT) Sensor |
| Compatible Engine Models | Isuzu 4HK1, Isuzu 6HK1 |
| Application | Komatsu Excavators (ZW220, ZW250, ZX110-3) |
| Connector Type | OEM-standard electrical connector |
| Operating Temperature Range | Engineered for full operational range of diesel engines |
| Condition | New, High-Quality Replacement |
OEM Cross-Reference
This sensor directly replaces the following OEM and aftermarket part numbers:
- Isuzu: 8-12146830-0, 8121468300
- This part is commonly sourced for Komatsu machinery utilizing the Isuzu 4HK1/6HK1 powerplant. Always verify your existing part number before ordering.
Compatibility
This Intake Air Temperature Sensor is compatible with the following applications:
- Engine Models: Isuzu 4HK1-TC, 6HK1-TC diesel engines.
- Machine Applications: Komatsu ZW220-5, ZW220-6, ZW250-5, ZW250-6, ZX110-3 excavators and potentially other models equipped with the specified Isuzu engines.
- Year Ranges: Applicable to machine model years utilizing the 4HK1 and 6HK1 engine series. Please confirm your engine serial number for absolute certainty.
Global Supply & Distribution
We are a trusted partner for construction, mining, and logistics companies worldwide. Our integrated supply chain ensures reliable delivery to your location.
- Worldwide Shipping: We export to all major markets including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), the Middle East (UAE, Saudi Arabia), and South America.
- Fast Logistics: Efficient shipping to major ports and industrial hubs via air and sea freight. Consolidated container options are available for bulk orders.
- Export Expertise: All documentation (Commercial Invoice, Packing List, Certificate of Origin) is provided professionally, ensuring smooth customs clearance and compliance with international trade regulations.
Quality Assurance
We stand behind the quality and performance of every part we supply.
- Manufacturing Standards: Produced in ISO-certified facilities using precision tooling to ensure dimensional accuracy and electrical specification compliance.
- Rigorous Testing: Each sensor undergoes functional testing to verify signal output and resistance values across a simulated temperature range.
- Warranty: Backed by a standard warranty against manufacturing defects. Contact our sales team for specific warranty terms applicable to your region.
FAQ
Q1: How do I know if my Intake Air Temperature Sensor is failing?
A1: Common symptoms include decreased fuel economy, reduced engine power, black smoke from the exhaust, rough idling, and the illumination of the engine check light (often with fault codes related to intake air temperature circuit).
Q2: Is this a direct plug-and-play installation, or is programming required?
A2: This is a direct replacement part. Typically, no ECU programming or coding is required for an IAT sensor. Simply disconnect the old sensor and connect the new one. Always disconnect the battery before beginning work for safety.
Q3: Can this sensor be used on other machinery with a 4HK1 engine, like a generator or truck?
A3: The sensor part number is specific to the engine model (4HK1/6HK1). If the other application uses the exact same Isuzu engine model, it is likely compatible. However, the harness connector or mounting bracket may differ. We recommend comparing the physical part and part number from your specific unit before purchase.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .