This Caterpillar 2692757 starter motor is a 24V, 9kW heavy-duty 50MT replacement engineered for reliable starting performance in demanding construction and mining equipment. Designed to match OEM specifications, it delivers high torque output and stable engagement for CAT 345C, 345DL, 349D, 973D, and other large excavators. Built for continuous operation in harsh environments, this starter is an OEM-grade solution for distributors, fleet operators, and equipment service providers seeking long-term reliability.
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 | Large-displacement diesel engines for 345C, 345DL, 349D excavators | Caterpillar |
| Wheel Loaders | Heavy-duty loader engines for W345C and similar models | Caterpillar |
| Track Loaders | Track loader diesel engines used in 973D series | Caterpillar |
| Mining & Quarry Equipment | High-load diesel engines for R1700G underground and surface equipment | Caterpillar |
| Construction Machinery | Earthmoving and road construction equipment requiring 24V high-torque starting | Caterpillar |
| Parameter | Specification |
|---|---|
| Starter Model | 50MT (Heavy-Duty Starter Motor) |
| Product Type | Heavy-Duty Starter Motor – 50MT Series |
| Voltage | 24V |
| Power Output | 9 kW |
| Teeth | 11 |
| Rotation | Clockwise (CW) |
| Mount Type | 50MT Mounting Configuration |
| Starter System | Direct Drive, High-Torque Design |
| Condition | Brand New, OE-Interchangeable |
| OEM Reference – Caterpillar | 2692757 |
| Application Category | Hydraulic Excavators, Wheel Loaders, Mining & Construction Equipment |
| Compatible Equipment Brand | Caterpillar |
| Housing Material | Heavy-Duty Cast Aluminum Housing |
| 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 |
| Reference Type | Reference Number | Brand / Description |
|---|---|---|
| OEM Numbers – Caterpillar | 2692757 | Caterpillar Heavy-Duty Starter Motor for Large Diesel Engines |
| Starter Series Reference | 50MT | Heavy-Duty Direct-Drive Starter Series for Construction & Mining Equipment |
| Replacement For | Caterpillar 50MT 24V Starters | OE-Interchangeable, Direct-Fit Replacement |
| Application Crosses | 345C / 345DL / 349D / 973D / R1700G / W345C | Caterpillar Excavators, Loaders & Mining Equipment |
| Electrical System Reference | 24V Starting System | High-Torque Starter Configuration for Diesel Engines |
| Power Class Reference | 9 kW Starter Motor | High-Output Starting Performance for Heavy-Duty Applications |
| Product Category Cross | Heavy-Duty Construction & Mining Equipment | Common applications requiring 50MT starter systems |
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
Yes. This starter motor is OE-interchangeable with Caterpillar OEM 2692757 and designed as a direct-fit replacement. It matches the original 50MT mounting configuration, electrical specifications, and gear engagement, requiring no modification during installation.
This starter is commonly used on Caterpillar 345C, 345DL, 349D, 973D, R1700G, and W345C machines. It is suitable for large excavators, loaders, and mining equipment operating with a 24V diesel starting system.
This model operates on 24V, delivers 9 kW high starting power, uses an 11-tooth pinion, and follows the 50MT direct-drive starter design. It is built for high-torque output required by large-displacement diesel engines in heavy-duty applications.
The 50MT starter is designed for higher power output and torque capacity compared to smaller MT series starters such as 37MT. It is typically used in large construction and mining equipment, where stronger cranking performance and durability are required.
Yes. This 50MT starter motor is engineered for harsh working conditions, including mining, quarrying, and heavy construction. The high-output design, reinforced internal components, and heavy-duty housing support frequent starts and continuous-duty operation.
It is compatible with specific Caterpillar engines that originally use the 50MT starter system, particularly those referencing OEM 2692757. Buyers should always confirm OEM number, voltage, mounting type, and tooth count before ordering to ensure correct fitment.
The product is manufactured under IATF 16949 and ISO 9001 certified production systems, ensuring consistent quality, performance stability, and traceability. Each unit is tested for electrical performance, engagement reliability, and load operation before shipment.
Yes. This starter motor is designed for B2B distribution, fleet maintenance, and equipment service providers. Its OEM-level compatibility, stable supply availability, and long service life make it suitable for inventory stocking and fleet standardization.
Elecdurauto provides an 18-month warranty for commercial and heavy-duty use. The warranty covers manufacturing defects under normal operating conditions and supports long-term reliability for professional users.
To ensure correct selection, buyers should confirm:
OEM reference number (2692757)
Voltage (24V)
Starter series (50MT)
Power rating (9 kW)
Machine model and application
Providing this information helps avoid mismatches and reduces downtime during replacement.
