Upgrade your fleet with the 24V 8.4 kW Heavy Duty Starter Motor (OEM 0001340503 / Bosch 0001-340-501), engineered for high-torque performance in heavy diesel engines. Perfectly compatible with Liebherr D9508, D9512, and R 964 C models, this starter motor ensures reliable engine starts for construction, mining, and industrial equipment. Trusted by professional operators and maintenance teams, it delivers consistent power, durability, and OEM-grade quality for your machinery.
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 | Equipment Model / Application | Brand |
|---|---|---|
| Industrial Diesel Engines | D9508 / D9512 Series Heavy-Duty Diesel Engines | Liebherr |
| Construction Machinery | Excavators, wheel loaders, and heavy construction equipment powered by large displacement diesel engines | Liebherr |
| Power Generation Engines | Industrial diesel engines used in generator sets and stationary power units | Liebherr / Industrial OEMs |
| Heavy Equipment & Industrial Vehicles | Heavy machinery requiring high-torque 24V starting systems (8.4 kW output) | Liebherr |
| Service & Maintenance Replacement | OEM replacement for starter motor 0001340503 and equivalent aftermarket part numbers | Bosch Compatible |
| Industrial & Earthmoving Equipment | Construction, mining, and industrial applications with high compression diesel engines | Liebherr / Industrial OEMs |
| Parameter | Specification |
|---|---|
| Starter Model | Heavy-Duty Starter Motor – OEM 0001340503 |
| Product Type | Heavy-Duty Starter Motor – OEM Replacement |
| Voltage | 24V |
| Power Output | 8.4 kW High-Torque Output for Large Diesel Engines |
| Teeth | 11 Teeth |
| Rotation | Clockwise (CW) |
| Mount Type | Standard Industrial / Engine OEM Mounting Configuration |
| Starter System | Gear Reduction Starter System (High Torque Design) |
| Cooling / Lubrication | Internal Lubrication, Heavy-Duty Continuous Operation Design |
| Condition | Brand New, OEM-Interchangeable |
| OEM Cross References | 0001340503 (Bosch Compatible) |
| Compatible Engines | D9508 / D9512 Heavy-Duty Diesel Engines |
| Compatible Equipment | Construction machinery, industrial equipment, large diesel-powered systems |
| Typical Applications | Excavators, wheel loaders, earthmoving equipment, industrial diesel engines |
| Application Category | Construction Machinery, Heavy-Duty Equipment, Industrial Engines |
| Housing Material | Heavy-Duty Metal Housing |
| Electrical System | 24V Diesel Engine Starting System |
| Quality Standard | IATF 16949 & ISO 9001 Certified Production System |
| Warranty | 18 Months for Heavy-Duty Commercial Use |
| OEM Brand | OEM Reference Number | Application / Description |
|---|---|---|
| Bosch | 0001340503 / 0-001-340-503 | Original Bosch heavy-duty starter motor, 24V 8.4 kW, gear-reduction design |
| Liebherr | 10120541 | OEM starter motor used on Liebherr heavy-duty diesel engine platforms |
| MTU | 52417200001 | MTU industrial engine starter motor, interchangeable with Bosch 0001340503 |
| MTU | X52417200001 | OEM-interchangeable MTU starter motor reference |
| MTU | EX52-417-200-001 | Alternative MTU engine starter reference for industrial 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 large-displacement industrial diesel engines and is commonly used on Liebherr heavy equipment platforms and MTU-based industrial engines. It is widely applied in construction machinery, earthmoving equipment, and stationary industrial engines that require a 24V high-torque starting system. Compatibility should always be confirmed by OEM number, engine model, and mounting configuration before installation.
Yes. This starter motor is manufactured as an OEM-interchangeable replacement for Bosch 0001340503 (0-001-340-503). It matches the original unit in voltage (24V), power output (8.4 kW), pinion teeth (11T), rotation direction, and mounting interface, ensuring reliable performance in heavy-duty diesel applications.
An 8.4 kW starter motor provides significantly higher cranking torque, which is essential for high-compression diesel engines operating in construction sites, mining areas, and extreme environments. It improves cold-start performance, reduces starting time, and minimizes stress on the electrical system, making it ideal for industrial and heavy equipment applications.
Compared with standard 24V starters, this model features:
Higher power output (8.4 kW)
Heavy-duty gear-reduction design
Reinforced internal components for continuous industrial use
These differences make it suitable for large diesel engines, whereas standard starters are typically used on lighter commercial vehicles or small machinery.
Yes. This starter motor is widely used in construction machinery, mining equipment, and industrial power generation engines. Its robust design supports frequent start cycles, long operating hours, and harsh working conditions, which are common in EPC projects, infrastructure construction, and industrial facilities worldwide.
In addition to Bosch 0001340503, this starter motor cross-references with several aftermarket equivalent numbers, such as 106985, 120-34003, 255819, 331698, and other catalog interchange numbers. These references are provided for identification and sourcing purposes and should be verified against the technical specifications before use.
Absolutely. This product is developed for global B2B markets, including Europe, the Middle East, Africa, Southeast Asia, and South America. It supports bulk orders, distributor programs, and project-based procurement, making it suitable for importers, wholesalers, fleet operators, and maintenance service providers.
The starter motor is produced under IATF 16949 and ISO 9001 certified quality management systems. Each unit undergoes electrical performance testing, durability checks, and fitment inspection to ensure consistent quality for heavy-duty commercial and industrial use.
This product is supplied with a 18 month warranty, depending on application and order terms. Technical support, installation guidance, and after-sales assistance for OEM replacement or aftermarket distribution are available, ensuring confidence for long-term B2B cooperation.
To ensure correct fitment, buyers are advised to provide OEM reference numbers, engine model, equipment type, and photos of the existing starter motor. This verification process helps avoid mismatch risks and is especially important for international orders, bulk procurement, and project-based sourcing.