Crankshaft 3917320 Engine Parts for Cummins C8.3 Engine
| Product Name | Crankshaft |
| Part Number | 3917320 3910968 3918986 |
| Material | Cast Iron |
| Origin | China |
| Engine Type | C8.3 Engine |
| Production Capacity | 1000-2000 Pieces Per Month |
| Packing | Original Packing/Neutral packaging/Customer packaging |
| Application | Engineering Machinery, Heavy Truck,diesel engine |
| After-Service | Strict test before shipment/fast delivery |
Honesty comany Main sales engine parts
The crankshafts sold by Honesty Company cover medium and heavy crankshafts, marine engine crankshafts, construction machinery, generator sets, etc. Construction machinery products include Caterpillar, CUMMINS (XCEC, DCEC, CCEC, GCIC series engine parts), Perkins. The cooperative factory has the largest crankshaft fatigue laboratory, which has passed the national certification of China Conformity Assessment. The factory has more than 30 crankshaft processing production lines, producing more than 1 million crankshafts annually, and the supply chain fully meets the delivery of overseas customer orders.
Honesty comany are located in Chongqing City, China, specialized in complete engines and spare parts . Mainly sell Cummins engines and Cummins original parts, Dongfeng Cummins (DCEC), Xi’an Cummins (XCEC), Chongqing Cummins (CCEC) engines, Foton Cummins, mechanical engines 4BT3.9, 6BT5.9, 6CT8.3, L8.9, L10, M11, N14, NT855, K19, K38, K50, F3.8, F2.8 series, Cummins electronic control engine ISF, ISBe, ISDe, ISCe, ISLe, ISM11, ISX15 series and engineering machinery engine QSB 3.3 QSB5.9 , QSB6.7, QSC8.3, QSL9, QSM11, QSX15, QSK19 QSK38 QSK50 QSK23 QSK60 QSK45 series engines and all spare parts, almost all Cummins products, we can provide. Caterpillar Engines C27, C7, C9, C13, C15, C4.4, 3516, 3508, C32, C18, C0.5, 3616, 3516, C11, 3508… series engines and all spare parts. we can provide other spare parts and engines.sach as MAN and Scania,Deutz , perkins,Volvo Penta, ISUZU …etc
Core characteristics and technical advantages of crankshaft machining
1.Whole process precision machining system
Using German HELLER, Japan MAZAK multi-axis CNC machine tools, to achieve the main shaft neck, connecting rod neck and other key parts of the micron precision (±0.005mm), combined with JUNKER high-speed CBN grinding machine synchronous grinding, surface roughness Ra≤0.2μm; According to the requirements of different working conditions, integrated rolling strengthening, high-frequency quenching and ion nitriding process, fatigue strength increased by more than 40%, Marine engine crankshaft salt spray corrosion life extended by 3 times.
2.Advantages of scale and flexible manufacturing
More than 30 fully automated production lines support the rapid flow from blank to finished product (single line beat ≤15 minutes), modular design compatible with 300mm to 6m length, 10kg to 2 tons of weight crankshaft, 72 hours to complete non-standard product process development, to meet the Caterpillar mining machinery, Cummins X series and other diverse needs.


3.Strict quality verification system
The largest crankshaft fatigue laboratory in Asia certified by China CNAS can simulate more than 10 million cyclic load tests to ensure that products meet B10 life standards such as Caterpillar C9 and Cummins ISX15. Coordinate measuring machine (accuracy ±1.5μm), direct reading spectrometer and Schenck dynamic balancing machine (G6.3 class) to achieve 100% full inspection, key parameters can be traced for 20 years.
4.Cold hardening of crankshaft rounded corners by Hegensett rolling equipment to increase fatigue strength by more than 40%; Combined with induction hardening technology, the surface hardness reaches 55-62HRC, and the wear resistance is increased by 30%.
Honesty offers high-load, long-life, lightweight crankshaft solutions for customers around the world to continuously enable the efficient and stable operation of construction machinery, Marine power and generator sets.
- Cummins crankshaft 3917320 3910968 3918986 for C8.3 Engine series, with list of Cummins crankshafts as below:
| Engine | Description | Part # | Part # | Part # | Part # | Part # |
| B3.9 | crankshaft | 3904477 | 3908031 | 3907803 | 3929036 | 3903827 |
| B3.9 | crankshaft | 3903830 | 3905617 | |||
| B5.9 | crankshaft | 3863320 | 3903828 | 3905619 | 3905730 | 3907804 |
| B5.9 | crankshaft | 3908032 | 3929037 | |||
| C8.3 | crankshaft | 3904363 | 3905625 | 3910968 | 3914584 | 3917320 |
| C8.3 | crankshaft | 3918986 | 3917443 | 5286867 | 5286860 | |
| QSL | crankshaft | 3965010 | 3965012 | 3976841 | 3976871 | 4989436 |
| QSL | crankshaft | 3965011 | 5302515 | 5319369 | ||
| ISB4.5 | crankshaft | 3968176 | 3974539 | 3974634 | 4934564 | 4981226 |
| ISB4.5 | crankshaft | 5289841 | 5289840 | |||
| ISB5.9 | crankshaft | 5313645 | 5254839 | 3915258 | ||
| ISB6.7 | crankshaft | 2830476 | 3968164 | 3968165 | 3974538 | 3974635 |
| ISB6.7 | crankshaft | 4934861 | 4934862 | 5301008 | 5301009 | 4896766 |
| ISB6.7 | crankshaft | 2830477 | 4934566 | 4934565 | 4896767 | |
| ISF2.8 | crankshaft | 5264231 | 5264230 | 5340179 | 5443206 | 5340180 |
| ISF3.8 | crankshaft | 4938751 | 4938752 | 5261375 | 5261376 | |
| QSM | crankshaft | 3073707 | 2882729 | 3819989 | ||
| K19 | crankshaft | 3000357 | 3096362 | 3201082 | 3347569 | 3418898 |
| K19 | crankshaft | 3331586 | 3331586NX | 3090485 | 3005357 | 3418910 |
| K19 | crankshaft | 3347569NX | 3039362 | 3086163 | ||
| K38 | crankshaft | 3038750 | 3176424 | 3630059 | 3630072 | 3630076 |
| K38 | crankshaft | 4099004 | 3630155 | 3634814 | 3630157 | 3648629 |
| K38 | crankshaft | 207530 | 3005598 | 3015577 | 3630075 | 3648630 |
| K38 | crankshaft | 3004689 | 3015576 | 3176423 | 4099003 | 3630073 |
| K38 | crankshaft | 3648631 | 3630056 | 3648637 | 3641653 | 3630060 |
| K38 | crankshaft | 3648638 | 4099002 | 3648639 | 4099001 | 3630057 |
| K50 | crankshaft | 4098998 | 3626832 | 3627642 | 3629276 | 3648618 |
| K50 | crankshaft | 3069782 | 3627643 | 3628873 | 3648619 | |
| N855 | crankshaft | 211960 | 211980 | 3000140 | 3024923 | 3029348 |
| N855 | crankshaft | 3608833 | 3054866 | |||
| V28 | crankshaft | 3042800 |





