This heavy-duty 24V starter motor is engineered as a direct OEM replacement for Caterpillar starter motor references 3895833, 4235606, and 5206648, delivering reliable starting performance for diesel engines operating in demanding environments. With 8.4 kW power output, clockwise (CW) rotation, and a 12-tooth pinion design, it ensures consistent engagement and high torque for heavy-duty applications. Designed for aftermarket and fleet replacement, this starter motor offers OEM-level fitment, durability, and electrical compatibility, making it a dependable solution for distributors, repair facilities, and equipment service providers.
Elecdurauto
IATF 16949, ISO 9001, and other major OEM certification systems
OEM label and ODM customization accepted
50
7–15 Days
18 months
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Product Description
| Equipment Type | Engine Model / Application | Brand |
|---|---|---|
| Hydraulic Excavators | Heavy-duty diesel engines used in large and mid-size excavators requiring high-torque 24V starting systems | Caterpillar |
| Wheel Loaders | Diesel engines for wheel loaders operating under continuous load and frequent start-stop conditions | Caterpillar |
| Track-Type Tractors & Loaders | Track loader and crawler equipment engines designed for construction and earthmoving applications | Caterpillar |
| Mining & Quarry Equipment | High-displacement diesel engines used in mining, quarry, and material handling equipment | Caterpillar |
| Construction Machinery | Earthmoving, road construction, and infrastructure equipment requiring reliable 24V starter motors | Caterpillar |
| Industrial Power Units | Diesel engine-driven industrial equipment and auxiliary power systems with heavy-duty electrical requirements | Caterpillar |
| Parameter | Specification |
|---|---|
| Starter Model | Heavy-Duty Starter Motor |
| Product Type | Heavy-Duty Starter Motor – OE Replacement |
| Voltage | 24V |
| Power Output | 8.4 kW |
| Teeth | 12 |
| Rotation | Clockwise (CW) |
| Mount Type | 3-Bolt Mounting Configuration |
| Starter System | Direct Drive, High-Torque Design |
| Condition | Brand New, OE-Interchangeable |
| OEM Reference – Caterpillar | 3895833 / 4235606 / 5206648 |
| Application Category | Hydraulic Excavators, Wheel Loaders, Mining & Construction Equipment |
| Compatible Equipment Brand | Caterpillar |
| Housing Material | Heavy-Duty Metal Housing (Industrial Grade) |
| Electrical System | 24V Diesel Engine Starting System |
| Quality Test Standard | IATF 16949 & ISO 9001 Certified Production System |
| Warranty | 18 Months for Heavy-Duty Commercial Use |
| OEM Brand | OEM Reference Number | Description |
|---|---|---|
| Bosch | — | Bosch-based heavy-duty starter system compatibility |
| Caterpillar | 3895833 | Heavy-duty starter motor for Caterpillar diesel engines |
| Caterpillar | 4235606 | OEM starter motor used in construction and industrial equipment |
| Caterpillar | 5206648 | Direct replacement starter motor for 24V Caterpillar applications |
At Elecdurauto, the components of each product are strictly inspected to ensure the quality of the products.
New series of products have to undertake all kinds of tests before out into SOP, such as DV performance test,environment test, electromagnetic vibration test, endurance treat.
Electromagnetic Vibration Tester (On Working Condition)
Starter DV Performance Tester
Starter Endurance Test Zone
Environment Test Area
At Elecdurauto, every starter is manufactured to exacting standards through our fully integrated production process. From rigorously inspected raw materials to precision machining and automated assembly, each step is optimized for consistency and performance. Every unit undergoes dynamic testing to ensure unmatched reliability—meeting the demands of both OEM specifications and aftermarket requirements.
Starter Raw Materials Preparation
Starter Component Processing
Starter Parts Fabrication
Starter Parts Assembly Process
Starter Automated Production Line
Starter Quality Control Check
Starter Final Product Assembly
Starter Finished Goods Storage
With extensive experience in supplying to OEMs and large distributors, Elecdurauto understands what global compliance truly means. Our starter motors can be tailored to meet the required certifications and regulatory standards in your region — whether it's CE for Europe, E-Mark for automotive electronics, INMETRO for Brazil, or GCC conformity for the Middle East.
ISO/IATF 16949 Certified Production
ISO 14001 Environmental & Safety Compliance
Optional CE, RoHS, E-Mark, REACH, INMETRO & others
Lab testing partnerships for electromagnetic compatibility (EMC), durability, noise & vibration, and more
Customized labeling and documentation to meet your import/export requirements
Need help passing a new certification for your country?
Want to brand your own line with compliance guarantees?
We've done it before — and we're ready to do it for you.
At Elecdurauto, we take pride in delivering more than just starters—we provide end-to-end solutions tailored to our clients' exact needs. As a trusted OEM supplier for starters, we've built long-term partnerships by combining precision engineering, responsive service, and value-added support.
From initial design collaboration to final delivery, we ensure every starter meets strict OEM specifications while optimizing for performance and durability. Our team works closely with clients to refine packaging, streamline logistics, and even assist with product development—ensuring a seamless integration into their production lines.
Starter Motor Samples
Designed Boxes with Client Logo
Client Showcasing
OEM Starter Models Showroom
Detailed Shot of Starter Motor
Precision Components Inside Starter
Surface Texture and Labeling on Starter
Starter Motor Units Before Packaging

Elecdurauto brings together a powerful network of China's top automotive electrical component manufacturers to serve global buyers with unmatched efficiency.
As your strategic sourcing partner, we offer:
Competitive factory pricing
Product quality on par with international brands
Full support across fuel and new energy vehicle segments
From OE-compatible starter motors to custom-developed units, Elecdurauto empowers wholesalers, distributors, and OEM customers with reliable supply chain access and flexible production capability.

National-level high-tech enterprise focused on motor system innovation
¥300M+ R&D investment spanning ICE, BEV, HEV, REEV platforms
Modern production centers certified to GMW Global & CINA standards
Full-process automation with real-time quality control, smart warehousing, and digital visualization
Industry-leading single-line output capacity
Built upon Six Sigma and lean production principles
Smart upgrade from traditional to digitalized manufacturing
Capable of complex processes: round wire stators, high-density alternators, IPX4/IP67 protection-grade starters
Full IATF 16949, ISO 14001 compliance
In-house testing: performance, NVH, life-cycle (except EMC)
Certified by top OEMs: GMW, Chery, JAC, Foton, Caterpillar
Lifecycle validation: 45,000 to 350,000 cycles for start-stop systems
Starter motor digital assembly line: 2 million units/year
Rotor production: 3 million units/year
Flat wire stators/rotors: 250,000 units/year
Round wire motors: 240,000 units/year
Starter assembly total capacity: 600,000 units/year
This heavy-duty starter motor is designed for Caterpillar diesel engines used in excavators, wheel loaders, track loaders, and mining equipment. It directly fits engine models corresponding to OEM references 3895833, 4235606, and 5206648. Compatible applications include 345C, 345DL, 349D, 973D, R1700G, and W345C equipment.
Yes, it is a direct-fit, OE-interchangeable replacement, engineered to match Caterpillar 24V heavy-duty starter motor specifications, including rotation (CW), teeth count (12), and mounting configuration (3-bolt). This ensures installation without modification.
This unit operates at 24V and delivers 8.4 kW of power, making it suitable for large-displacement diesel engines in heavy-duty construction, mining, and industrial equipment.
Check the Caterpillar OEM reference number on your original starter motor. If it matches 3895833, 4235606, or 5206648, this starter motor is fully compatible. Additionally, verify the mounting hole configuration (3 holes) and CW rotation to ensure correct installation.
Yes, it is designed for extreme heavy-duty conditions, including low temperatures, high-altitude diesel engines, and frequent start-stop operations. Its high-torque direct-drive system ensures reliable engine starting in challenging environments worldwide.
The starter motor features a heavy-duty metal housing and is produced under IATF 16949 & ISO 9001 certified systems. All components meet Caterpillar OEM quality standards for durability, electrical performance, and long service life.
This Caterpillar 24V heavy-duty starter motor comes with an 18-month warranty for commercial and industrial applications. Elecdurauto provides technical support for distributors, fleet maintenance teams, and repair shops worldwide, including Europe, South America, and North America.
Yes, it is designed for fleet and project inventory programs. Its OEM interchangeability and high reliability make it ideal for bulk purchasing by equipment distributors, repair centers, and industrial fleet operators.
With high-torque output, 12-tooth pinion design, and CW rotation, the starter ensures proper engagement with the flywheel, minimizing wear and avoiding starter or engine damage. This reduces downtime for mining, construction, and earthmoving machinery.
This heavy-duty starter motor is optimized for global industrial and construction applications, including Europe, South America, North America, and other heavy-equipment markets. Its 24V high-torque design performs reliably in both hot, cold, and high-altitude conditions.