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Elecdurauto DENSO SYSTEM 1645 Starter Motor for Heavy-Duty Mack & International Trucks

Elecdurauto's DENSO System 1645 Starter Motor delivers reliable, high-torque performance designed for heavy-duty trucks. Engineered for Mack Truck and International HD Truck applications, this 12V, 5kW starter ensures consistent engine engagement under the most demanding conditions. Its precise 12-tooth pinion with 46mm outer diameter and 92mm engagement length guarantees optimal compatibility and durability for commercial fleets and aftermarket distributors.

  • Elecdurauto

  • IATF 16949, ISO 9001, and other major OEM certification systems

  • OEM label and ODM customization accepted

  • 20

  • 7–60 Days

  • 18 months

Availability:
Quantity:
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Product Description

Applications of Elecdurauto DENSO System 1645 Starter Motor Supplier

Equipment Type Engine Model / Application Brand Notes
Heavy-Duty Trucks Mack Truck HD Series Mack Provides dependable engine starts under heavy-load and long-haul operating conditions.
Commercial Vehicles International HD Truck Engines International Ensures rapid cranking and reliable ignition performance for demanding fleet operations.
Fleet & Logistics Vocational and Medium-Duty Trucks Multiple Brands Delivers consistent cold-start torque and durability across various commercial transport applications.



Applications of Elecdurauto DENSO System 1645 Starter Motor Supplier

Parameter Specification
Part Number 1645 (DENSO System Replacement)
Product Type Heavy-Duty Starter Motor – DENSO System Series
Voltage 12V
Power Output 5 kW
Teeth 12
Pinion Outer Diameter 46 mm
Engagement Length 92 mm
Rotation Clockwise (CW)
Mount Type DENSO Mounting Configuration
Cross References – DENSO 428000‑1210 / 428000‑1211 / 428000‑1212 / 428000‑1220 / 428000‑1221
Cross References – Lester 18570N / 18571N
Housing Material High-Strength Aluminum Alloy
Application Category Mack Truck HD Series, International HD Trucks, Vocational & Medium-Duty Trucks
Quality Test Standard IATF 16949 & ISO 9001 Certified Production System
Warranty 18 Months for Heavy-Duty Commercial Use



OE Cross Reference from Elecdurauto DENSO System 1645 Starter Motor Supplier

Reference Type Reference Number Brand / Description
OE Numbers – DENSO 428000‑1210 / 428000‑1211 / 428000‑1212 / 428000‑1220 / 428000‑1221 DENSO Heavy-Duty Starter Series
OE Numbers – DENSO (Alternate) Compatible with multiple 428000-series units Additional DENSO-Compatible Replacement Options
Lester Number 18570N / 18571N Industry Standard Cross Reference
Replacement For DENSO 12V / 5 kW Starters Direct-Fit DENSO-Type Applications
Application Crosses Mack Truck HD Series, International HD Trucks, Vocational & Medium-Duty Trucks Suitable for heavy-duty truck, fleet, and commercial transport applications



Inside Elecdurauto Starter Motor Supplier Factory & Advanced Equipment

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)

Electromagnetic Vibration Tester (On Working Condition)

Starter DV Performance Tester

Starter DV Performance Tester


Starter Endurance Test Zone

Starter Endurance Test Zone

Environment Test Area

Environment Test Area



How Elecdurauto Heavy-duty Starter Motor Supplier Produces

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 Raw Materials Preparation

Starter Component Processing

Starter Component Processing

Starter Parts Fabrication

Starter Parts Fabrication

Starter Parts Assembly Process

Starter Parts Assembly Process

Starter Automated Production Line

Starter Automated Production Line

Starter Quality Control Check

Starter Quality Control Check

Starter Final Product Assembly

Starter Final Product Assembly

Starter Finished Goods Storage

Starter Finished Goods Storage



Quality-Certified Starter Motor Supplier for Global OEM and Distributor Markets

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.


What We Offer:

  • 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


Trusted by Leading Markets:

From Latin America to Europe, from Southeast Asia to the Middle East, Elecdurauto has helped partners streamline entry into demanding markets with localized solutions and on-demand compliance support.
  • 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.



OEM Project Case from Elecdurauto Starter Motor Supplier for Global Brands

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

Starter Motor Samples

Designed Boxes with Client Logo

Designed Boxes with Client Logo

Client Showcasing

Client Showcasing

OEM Starter Models Showroom

OEM Starter Models Showroom

Detailed Shot of Starter Motor

Detailed Shot of Starter Motor

Precision Components Inside Starter

Precision Components Inside Starter

Surface Texture and Labeling on Starter

Surface Texture and Labeling on Starter

Starter Motor Units Before Packaging

Starter Motor Units Before Packaging



Elecdurauto Starter Motor Supplier OEM Development Process




Your Reliable Parter for Starter Motor Supply

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.



Why Industry Leaders Choose Elecdurauto

1. R&D Strength – From Fuel to EV

  • National-level high-tech enterprise focused on motor system innovation

  • ¥300M+ R&D investment spanning ICE, BEV, HEV, REEV platforms


2. Advanced Manufacturing Capability

  • 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


3. Precision Process Engineering

  • 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


4. Comprehensive Quality Assurance

  • 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


5. High Capacity & Product Range

  • 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



Co-Hosted With Industry Partners to Elevate Heavy-Duty Standards Globally

As a dedicated supplier of heavy-duty components systems, we strengthen our global presence through strategic cooperation with our South American partner. Together, we co-host international exhibitions to present reliable, high-performance heavy-duty components to distributors, fleet operators, and aftermarket professionals across worldwide.


Joint Booth With South American Partner

Joint Booth With South American Partner

Heavy-Duty Product Display Zone

Heavy-Duty Product Display Zone

On-Site Technical Consultation

On-Site Technical Consultation


Our Expert Team on Site

Our Expert Team on Site

Live Product Demonstration

Live Product Demonstration

Innovation & Technology Corner

Innovation & Technology Corner



FAQs for Elecdurauto DENSO System 1645 Heavy-Duty Starter Motor

1. Which trucks and engines are compatible with the Elecdurauto DENSO System 1645 Starter Motor?

This starter motor is fully compatible with Mack Truck HD Series, International HD Trucks, and a range of vocational and medium-duty trucks. It is designed for heavy-duty engines requiring 12V, 5kW starter performance.


2. Can the Elecdurauto DENSO 1645 replace original DENSO 428000-series starters?

Yes. It directly cross-references DENSO 428000‑1210 / 1211 / 1212 / 1220 / 1221 and Lester 18570N / 18571N. It provides an exact fit for applications originally equipped with these OE numbers, ensuring reliable engine start.


3. What are the key specifications of this starter motor?

The Elecdurauto DENSO 1645 Starter Motor features 12 teeth, 46mm pinion outer diameter, 92mm engagement length, clockwise rotation, and DENSO mounting configuration. It delivers 5 kW power output at 12V, making it ideal for heavy-duty truck operation.



4. How does this starter perform in cold or harsh environments?

Elecdurauto DENSO 1645 is engineered for high torque and reliable cold-start performance, ensuring dependable ignition even in low-temperature conditions and under heavy-load or long-haul operations.


5. Is this starter motor suitable for fleet operators or commercial maintenance?

Absolutely. Its robust design, high-quality aluminum alloy housing, and tested durability make it ideal for fleet maintenance, commercial transport, and logistics operations where reliability and long service life are critical.


6. What quality standards does Elecdurauto follow for this starter motor?

All Elecdurauto DENSO 1645 starters are manufactured under IATF 16949 and ISO 9001 certified production systems, with strict quality control to meet heavy-duty commercial standards.


7. Does Elecdurauto offer OEM or ODM solutions for this starter motor?

Yes. Elecdurauto provides OEM branding and ODM customization for distributors, importers, and fleet partners, including packaging and labeling options to meet regional or corporate requirements.


8. What is the warranty for this starter motor?

The Elecdurauto DENSO 1645 Starter Motor comes with an 18-month warranty for heavy-duty commercial use, ensuring peace of mind for fleet operators and B2B partners.


9. How to ensure proper fitment before ordering?

Confirm your engine's DENSO part number or Lester reference, pinion teeth count, engagement length, and mounting type. Elecdurauto provides technical support to verify compatibility with Mack, International, or other heavy-duty truck models.


10. Where can this starter motor be sourced for Europe and North America markets?

Elecdurauto DENSO 1645 Starter Motors are available through authorized distributors and B2B suppliers in Europe and North America, ensuring fast delivery, bulk-order support, and local after-sales service.

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