Thermostat for Caterpillar 400-7 S6D125 | Also Fits D375, CATC9, 320D2, D85, C15
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | GCO Code | Part Type | Availability |
|---|---|---|---|---|---|
| Caterpillar (CAT) | 400-7 S6D125 / D375 / CATC9 / 320D2 / D85 / C15 | 6004216630 / 2477133 / ND1135501150 / ND1135500780 / 6127116520 / 6004216610 / 6610116500 | F20.9 | THERMOSTAT / THERMOSTAT SEAT | ✓ In Stock |
Product Description
OEM Part Numbers: 6004216630 / 2477133 / ND1135501150 / ND1135500780 / 6127116520 / 6004216610 / 6610116500
Machine Compatibility
| Machine Model | Type | Part Number |
|---|---|---|
| 400-7 S6D125 | 6004216630 | |
| D375 | Crawler Dozer | 2477133 |
| CATC9 | ND1135501150 | |
| 320D2 | Hydraulic Excavator | ND1135500780 |
| D85 | Crawler Dozer | 6127116520 |
| C15 | 6004216610 |
Designed for the 400-7 S6D125 / D375 / CATC9 / 320D2 / D85 / C15, the 6004216630 thermostat pc 400-7 s6d125 / d375 / catc9 / 320d2 / d85 / c15 controls the flow of coolant through the engine's cooling circuit, maintaining the precise temperature range needed for efficient engine operation. A stuck-open thermostat prevents the engine from reaching operating temperature, reducing efficiency and increasing fuel consumption. A stuck-closed thermostat causes rapid overheating and engine damage. Manufactured to OEM reference 6004216630 for exact fitment on the 400-7 S6D125 / D375 / CATC9 / 320D2 / D85 / C15 with correct thermal response characteristics.
Key Features:
- Accurate Thermal Response: Opens at the precise calibrated temperature to maintain the correct engine operating range.
- OEM Specification: Built to reference 6004216630 for compatible fitment on the 400-7 S6D125 / D375 / CATC9 / 320D2 / D85 / C15.
- Fuel Efficiency Support: Maintains correct engine temperature to ensure optimal fuel combustion and economy.
The 6004216630 thermostat pc 400-7 s6d125 / d375 / catc9 / 320d2 / d85 / c15 is a precision temperature regulation component for maintaining optimal engine thermal performance on the 400-7 S6D125 / D375 / CATC9 / 320D2 / D85 / C15.
What Does This Thermostat / Thermostat Seat Do?
The thermostat is a temperature-sensitive valve that blocks coolant flow to the radiator until the engine reaches its designed operating temperature. Once at temperature, it opens progressively to allow the radiator to regulate engine heat. The thermostat seat (housing) seals the thermostat in the coolant circuit.
Possible Thermostat / Thermostat Seat Problem Symptoms
If your machine is showing any of the following, a faulty thermostat / thermostat seat may be the cause:
- Engine taking abnormally long to reach operating temperature in normal conditions
- Engine overheating rapidly when the thermostat is stuck in the closed position
- Temperature gauge fluctuating erratically rather than holding steady at operating temperature
- Coolant leaking from the thermostat housing or seat sealing surfaces
Why Buy From GCO Products?
Gautam & Company has been supplying earthmoving machinery spare parts since 1999. Here is why contractors, fleet operators, and dealers across India trust us.
Over 27 years of experience in the earthmoving parts industry.
Our team helps you confirm the right part before you order.
Proper GST invoices on every order for your accounting needs.
Fast dispatch from Jalandhar to all states across India.
Volume pricing available for fleet owners, dealers and distributors.
Both genuine OEM and quality aftermarket options available.
How to Confirm Compatibility
To ensure this part is the correct fit for your machine, have the following ready when you contact us:
- 1Machine Model & Year
E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.
- 2Machine Serial Number
Found on the machine's chassis plate. Helps confirm the exact production variant.
- 3OEM Part Number
From your parts manual, the old part itself, or the machine's service documentation.
Not sure if this part fits your machine?
WhatsApp Us to Confirm Typically replies within a few hoursDisclaimer: This is an aftermarket replacement part supplied by GCO Products (Gautam & Company) and is not manufactured by, affiliated with, or endorsed by the original equipment manufacturer (OEM). All brand names, model numbers, and OEM part numbers referenced on this page are used solely for the purpose of identifying compatibility and describing the application of this part. All trademarks, registered marks, and brand identifiers remain the exclusive property of their respective owners. GCO Products claims no association with, sponsorship by, or endorsement by any OEM brand mentioned herein.
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