Send OEM number, quantity, destination, or photos. We will reply with quotation, lead time, and fitment notes.
Fitment checkOEM number, engine model, and machine model confirmation.
Manual quotePrice, MOQ, stock, lead time, and replacement options.
Export supportPacking notes, mixed order support, and shipping details.
Product Details
Product Overview
This high-quality thermostat, identified by OEM part numbers 5-13770-021-1 and 5-13770-022-1, is a direct replacement component engineered specifically for the Isuzu C240 diesel engine. As a critical element of the engine’s cooling system, this thermostat precisely regulates coolant flow to maintain optimal operating temperatures, ensuring efficient combustion, reduced emissions, and prolonged engine life.
Designed for industrial and agricultural applications commonly powered by the robust Isuzu C240, this thermostat is suitable for use in excavators, forklifts, generators, and other heavy machinery. It is a reliable, drop-in solution for maintenance or repair jobs, helping to prevent overheating and cold-running issues that can lead to premature engine wear.
Key Features & Benefits
Precise Temperature Control: Engineered to open and close at the correct temperature range for the C240 engine, ensuring stable operating conditions and protecting against thermal stress.
Direct Fitment: Manufactured to match the exact dimensions and specifications of the original Isuzu part numbers 5-13770-021-1 and 5-13770-022-1, allowing for a straightforward, hassle-free installation.
Durable Construction: Built with corrosion-resistant materials to withstand the harsh conditions of diesel engine operation, including vibration, high pressure, and temperature fluctuations.
Improved Fuel Economy: By helping the engine reach and maintain its ideal operating temperature faster, this thermostat contributes to more complete fuel combustion, reducing fuel consumption and operational costs.
Reduced Emissions: Consistent engine temperature minimizes incomplete combustion and lowers the output of harmful exhaust pollutants, helping meet environmental compliance standards.
Cost-Effective Maintenance: Replacing a faulty thermostat is a low-cost, high-impact repair that prevents expensive downstream damage to the water pump, radiator, and cylinder head gasket.
Technical Specifications
Specification
Detail
Part Number
5-13770-021-1, 5-13770-022-1
Engine Model
Isuzu C240
Type
Thermostat
Engine Type
Diesel
Weight
1 kg
Warranty
6 Months
Place of Origin
Guangdong, China
OEM Cross-Reference
This thermostat is a direct replacement for the following original equipment manufacturer (OEM) part numbers:
Isuzu: 5-13770-021-1, 5-13770-022-1
Alternative Cross-Reference: While 5-13770-021-1 and 5-13770-022-1 are the primary identifiers for this specific unit, it is commonly used as a direct replacement in many C240 engine service kits. Please verify your existing part number against the list above.
Compatibility
This thermostat is specifically designed for the Isuzu C240 diesel engine. It is commonly used for the following applications and equipment types:
Engine Models: Isuzu C240, C240PK
Equipment Types: Excavators, Forklifts, Generators, Agricultural Tractors, Compressors, and Other Industrial Machinery
Vehicle Models: Commonly found in Isuzu NPR, NQR, and Elf series trucks, as well as various Mitsubishi and Caterpillar equipment that utilizes the C240 engine platform.
Note: Fitment can vary based on the specific equipment configuration. Always verify your existing part number against the OEM numbers listed above before purchasing.
Global Supply & Distribution
Our supply chain is optimized for global B2B distribution. We maintain ready stock of this Isuzu C240 thermostat to serve international buyers across all major markets.
Worldwide Shipping: We offer reliable shipping via air freight (DHL, FedEx, UPS) and sea freight (FCL/LCL) to ports and airports worldwide.
Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, South Korea, Singapore), Middle East (UAE, Saudi Arabia), South America (Brazil, Chile), and Africa.
Fast Delivery: Typical lead times are 3-7 business days for air freight and 15-30 days for sea freight, depending on the destination. We prioritize expedited handling for urgent industrial repair orders.
Trade Compliance: We have extensive experience in international export documentation, including commercial invoices, packing lists, and certificates of origin, ensuring smooth customs clearance.
Quality Assurance
We are committed to delivering parts that meet or exceed OE standards for performance and durability.
Manufacturing Standards: Produced in ISO 9001 certified facilities, ensuring consistent quality control throughout the production process.
Testing: Each batch undergoes rigorous testing for opening temperature, closing temperature, and leak resistance. A machinery test report and video inspection are available upon request.
Warranty: This product is backed by a 6-month warranty against manufacturing defects in materials and workmanship.
FAQ
Q: How do I confirm this thermostat fits my Isuzu C240 engine? A: The most reliable method is to locate the existing part number on your current thermostat. It should be stamped on the metal housing. Compare it directly to the OEM numbers listed: 5-13770-021-1 or 5-13770-022-1. If your engine is a C240 and the part number matches, this is the correct component.
Q: What are the symptoms of a failing thermostat on a C240 diesel? A: Common symptoms include the engine running too cold (slow to reach operating temperature), the engine overheating, poor fuel economy, or the temperature gauge fluctuating erratically. A stuck-closed thermostat causes overheating, while a stuck-open thermostat prevents the engine from warming up properly.
Q: Is professional installation required? A: While replacing a thermostat is a typical DIY job for experienced mechanics, we recommend professional installation to ensure proper sealing and to avoid air pockets in the cooling system. Correct installation torque for the housing bolts is critical to prevent coolant leaks and housing damage.
Inquiry Form
Send Inquiry
Leave your email and phone / WhatsApp so sales can follow up directly.