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Cummins Engine Flywheel Assembly

  • MaterialsHigh-Strength Cast Iron
  • SizesStandard Sizes & Custom Specifications Available
  • Applicable ModelsCummins Engine Series (ISX, B6.7, ISB, ISM, etc.)
  • surface treatmentAnti-Rust Coating / Protective Surface Treatment
  • OEM/CustomizedOEM / ODM Manufacturing & Custom Sample Development Available

The Cummins Engine Flywheel Assembly is a precision-engineered component mounted on the rear of the crankshaft. Designed for high durability and performance, it stores rotational energy to smooth out engine vibrations, integrates seamlessly with the clutch system for efficient power transmission, and features a heavy-duty ring gear for reliable engine starting. Ideal for heavy-duty commercial and industrial Cummins diesel engines.

Product Model

Small 6CT (3960448), 4974334, 5521630, 395 (4937926), 4365907, 5259641, 755 (3960755), 3252549, 5253213, 780 (3960780), 5256310, A4981723, 6BT (3977540), 5340843, 4973855, Large 6CT (3960491), 4389054, 4974571, Large 6CT (4940931), 3966586, 10BF11-E1100, 5472143, 5338237, 10BF11-05115, 5465762, A4980922, 1005115-E1EC0, P5525345, 4939161, 1005115-E1EC2, 5267235, 4944495, 3697999, C5264584, 5269358, X3 5536691, C5264583, 5274334, P6303901, 4933490, EQ153 (3912907)/173T, EQ153 Electronic Injection (5313586)/138T, EQ153 (4937926)/138T, EQ145 (4937924)/138T, EQ153 Electronic Injection (3960892)/173T, EQ145 (3913914)/173T, EQ145 Electronic Injection (5285409)/173T, Cummins Heavy-duty Engineering (138T 3415350), EQ145 Electronic Injection (5318535)/138T, Cummins Light-duty Engineering (159T 4939064), Heavy-duty Engineering Electronic Injection 3415350/LK375, Cummins Light-duty Engineering (127T 5301910)

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

n-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.

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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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