Electrical Parts
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This high-performance Caterpillar C18 Starter Motor (24V 11T 9kW) is a direct replacement for OEM part numbers 4789866 and 478-9866. Designed specifically for Caterpillar C18 diesel engines, this starter motor delivers reliable cranking power for heavy-duty machinery in mining, construction, and industrial applications. We serve a global clientele, with major markets in North America, Europe, the Middle East, Asia-Pacific, and South America, ensuring fast and secure shipping to industrial hubs worldwide.
| Specification | Detail |
|---|---|
| Part Number | 4789866 / 478-9866 |
| Product Type | Starter Motor |
| Voltage | 24V DC |
| Power Output | 9 kW (12 HP) |
| Number of Teeth (Pinion) | 11 Teeth |
| Rotation | Clockwise (viewed from drive end) |
| Application | Caterpillar C18 Diesel Engine |
| Warranty | 12 Months |
This starter motor is a direct replacement for the following OEM and cross-reference numbers:
Note: Always verify the voltage (24V), tooth count (11T), and mounting configuration against your existing starter before purchase.
Q1: Will this starter motor fit my Caterpillar C18 engine if the original part number is 10R-6052?
A: Yes, the 4789866 (478-9866) is a direct cross-reference for the 10R-6052 starter motor. However, we strongly recommend comparing the physical dimensions, mounting bolt pattern, and electrical connector type to ensure a perfect fit for your specific machine model.
Q2: What is the correct installation procedure for this 24V starter?
A: Always disconnect the battery negative terminal before installation. Ensure the flywheel housing is clean and free of debris. Apply a small amount of anti-seize compound to the mounting bolts. Torque the mounting bolts to the manufacturer’s specification (typically 150-170 Nm for C18 applications). Reconnect the battery, ensuring correct polarity (positive to the solenoid terminal, negative to the chassis ground).
Q3: How can I extend the service life of this starter motor?
A: Avoid prolonged cranking (limit to 15-20 seconds per attempt with a 2-minute cool-down period). Regularly inspect and clean the electrical connections to prevent voltage drops. Ensure the engine’s battery and charging system are in good condition to avoid under-voltage or over-voltage stress on the starter.
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.
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.
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
A: Normally we can supply any quantity if we have in stock.
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A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
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 .
