Engine Ring Gear | Weichai Cummins Truck Engine Ring Gear Supplier
- MaterialsForged Steel
- SizesStandard Sizes & Custom Specifications Available
- Applicable ModelsCommercial Vehicles & Construction Machinery
- surface treatmentHigh-Frequency Quenching & Carburizing
- OEM/CustomizedOEM / ODM Manufacturing & Custom Sample Development Available
Covering a wide range of specifications from 136 to 195 teeth, our flywheel ring gears are compatible with Weichai, Cummins, Sinotruk, and various construction machinery engines. Made from high-quality alloy steel with precision heat treatment, our ring gears feature accurate tooth profiles, excellent wear resistance, and reliable engagement with starter gears, ensuring improved starting performance and extended service life.
Changwei specializes in manufacturing high-quality Engine Flywheel Ring Gears for commercial vehicles, heavy-duty trucks, construction machinery, agricultural equipment, generator sets, and industrial diesel engines.
The flywheel ring gear is a critical component of the engine starting system. It transfers power through engagement with the starter motor gear, ensuring smooth and reliable engine starting. Manufactured from premium alloy steel with precision hobbing, heat treatment, and strict quality inspection, our ring gears feature accurate tooth profiles, excellent wear resistance, stable engagement, and long service life.
Changwei provides OEM and aftermarket solutions with customized production based on samples, drawings, and OEM part numbers.
Product Features
1.High-Strength Alloy Steel Material
Made from high-quality alloy steel with heat treatment to improve tooth hardness, wear resistance, and durability under frequent starting and heavy-duty conditions.
2.Precision Hobbing Process
Precision hobbing technology ensures accurate tooth profiles, consistent pitch, and smooth engagement with starter gears.
3.Stable Performance
Strict dimensional control reduces starting noise and improves engine starting reliability.
4.OEM Replacement Standard
Manufactured according to OEM specifications for direct replacement and reliable performance.
Compatible Brands
Changwei supplies OEM flywheel ring gears and engine flywheels compatible with major global and Chinese diesel engine brands:
Global Engine Brands
- WEICHAI
- DEUTZ
- CUMMINS
- ISUZU
- HINO
- Mitsubishi FUSO
- NISSAN
- VOLVO
- BENZ
- SCANIA
- AF Trucks & Diesel Engines (XF / CF / LF series compatible)
Chinese Engine Brands
- FAW (CA)
- XICHAI
- YUCHAI
- SHANGCHAI
- DACHAI
- WEICHAI
- YANGCHAI
- YUNNAI
- CHAOCHAI
- Perkins
Customized Manufacturing
Changwei supports customers with:
Product drawings
✔ Samples
✔OEM part numbers
✔Technical specifications
Manufacturing process includes:
- Tooling development
- Material selection
- Gear profile design
- Hobbing
- Heat treatment
- Precision inspection
Providing complete ring gear manufacturing solutions.
Applications
Suitable for:
- Heavy-duty trucks
- Commercial vehicles
- Construction machinery
- Agricultural Equipment
- Generator Sets
- Mining Machinery
- Industrial power equipment
- Commercial Diesel Engines
Product Model
Selected Specifications & Models
WEICHAI / SINOTRUK
| Series | Number of Teeth |
|---|---|
| WEICHAI / SINOTRUK | 136 |
| WEICHAI / SINOTRUK | 159 |
| WEICHAI / SINOTRUK | 160 |
| WEICHAI / SINOTRUK | 143 |
Deutz Dachai Engine Series (BF4M, BF6M, TCD 2012/2013, etc.)
| Series | Number of Teeth |
|---|---|
| Deutz Dachai Engine Series (BF4M, BF6M, TCD 2012/2013, etc.) | 115 |
| Deutz Dachai Engine Series (BF4M, BF6M, TCD 2012/2013, etc.) | 131 |
| Deutz Dachai Engine Series (BF4M, BF6M, TCD 2012/2013, etc.) | 145 |
CUMMINS
| Series | Number of Teeth |
|---|---|
| Cummins | 159 |
| Cummins | 173 |
| Cummins | 149 |
| Cummins | 138 |
| Cummins | 158 |
| Cummins | 152 |
| Cummins | 118 |
| Cummins | 103 |
| Cummins | 127 |
ISUZU Trucks & Diesel Engine Applications
| Series | Number of Teeth |
|---|---|
| ISUZU Trucks & Diesel Engine Applications | 129 |
| ISUZU Trucks & Diesel Engine Applications | 138 |
| ISUZU Trucks & Diesel Engine Applications | 108 |
| ISUZU Trucks & Diesel Engine Applications | 140 |
| ISUZU Trucks & Diesel Engine Applications | 139 |
| ISUZU Trucks & Diesel Engine Applications | 164 |
Hino Commercial Trucks & Diesel Engines
| Series | Number of Teeth |
|---|---|
| Hino Commercial Trucks & Diesel Engines | 137 |
| Hino Commercial Trucks & Diesel Engines | 129 |
| Hino Commercial Trucks & Diesel Engines | 121 |
| Hino Commercial Trucks & Diesel Engines | 145 |
More brands and specifications are available upon request.
We maintain a rigorous, full-process quality assurance system certified under IATF 16949:2016. From metallurgical inspection of raw materials to precision CNC machining, heat treatment, dynamic balancing, and final dimensional verification, every manufacturing phase is closely monitored. Strict first-piece inspection (FAI), in-process checks, and final audits ensure full lot traceability, high dimensional consistency, and exceptional durability for every batch.
End-to-End Quality Inspection
Comprehensive raw material testing, in-process dimensional control, and 100% final inspection to guarantee product consistency.
Dynamic Balance Testing
All flywheels undergo precision dynamic balance inspection to eliminate vibration, ensuring high operational stability and long service life.
Full Batch Traceability
Every product batch features a unique production code and complete quality records, supporting full supply chain traceability and customer audits.
We offer integrated manufacturing capabilities spanning in-house casting, high-precision CNC machining, heat treatment, and component assembly. Backed by rapid OEM/ODM engineering support, we seamlessly guide projects from initial sample prototyping to high-volume production. Dedicated account engineers oversee every stage, ensuring efficient delivery for both large-scale OEM contracts and flexible, multi-category custom orders.
Integrated Casting & Machining
In-house foundry and advanced multi-axis CNC machine center ensure precision dimensions and steady capacity.
Rapid OEM/ODM Response
Dedicated engineering team providing fast sample development, custom drawing reviews, and technical project support.
Flexible & Scalable Production
Adaptable manufacturing lines designed for high-volume orders as well as flexible, multi-model small-batch deliveries.
We offer tailored rust-proof, anti-collision, and moisture-resistant packaging solutions engineered for global sea and land transit. From heavy-duty wooden crates and fumigated pallets to customized SKU labeling, our packaging meets international export standards. We accommodate flexible shipping options—including LCL batch shipments, FCL full container loads, and tailored retail/aftermarket packaging—to align with your supply chain needs.
Custom Export Packaging
Heavy-duty rust-proof oil coating, anti-collision wrapping, and sturdy ISPM-15 wooden crates or fumigated pallets for safe ocean freight.
Flexible Shipping Options
Flexible delivery models supporting LCL batch shipments and FCL full container transport to match your inventory schedules.
Custom Labeling & Marking
Tailored shipping marks, QR codes, and custom barcoding to streamline warehouse intake and aftermarket channel distribution.
Frequently Asked Questions
An automotive flywheel is an important engine component that stores and releases rotational energy. It helps stabilize engine operation, reduce vibration, improve power transmission efficiency, and ensure smooth connection between the engine and clutch system.
Flywheel compatibility depends on the engine model, vehicle application, OEM part number, and product specifications. Please provide your engine model, vehicle model, OEM number, or technical drawings, and our engineering team will help confirm compatibility.
Our flywheels are mainly manufactured from high-strength cast iron and durable materials to provide excellent mechanical strength, wear resistance, heat dissipation performance, and long service life.
We perform strict quality control throughout the manufacturing process, including raw material inspection, casting quality control, CNC machining inspection, dimensional measurement, and final product inspection.
Yes. We provide OEM and customized flywheel manufacturing services based on customer requirements, including dimensions, materials, surface treatment, packaging, and branding.
Our flywheels are widely used for commercial vehicles, trucks, buses, agricultural machinery, construction equipment, diesel engines, and industrial applications.
The production lead time depends on product type, order quantity, and customization requirements. Standard products usually take 15–25 working days, while customized products depend on tooling and production requirements.
Yes. Samples can be provided for testing and approval before mass production. Sample cost and shipping arrangements can be discussed according to project requirements.
The MOQ depends on the product model, production requirements, and customization needs. Our team can provide a suitable MOQ solution based on your project requirements.
Please provide the OEM part number, engine model, product specifications, required quantity, and destination country. Our team will confirm the details and provide a competitive quotation.
All flywheel products are treated with rust protection and packed with export-standard cartons, wooden pallets, or customized packaging solutions to ensure safe transportation.
Yes. We provide technical support and after-sales service, including product selection assistance, quality feedback handling, and replacement solutions.
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For product quotes, sample lead times or customization suggestions, please click the button below to go to the RFQ page and we will respond as soon as possible based on product type, quantity and delivery requirements.
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