Repair on Vessel of Auxiliary Engine Crankshaft

About Repair on Vessel of Auxiliary Engine Crankshaft

We are giving below the details of a few engines and their model crankshaft which we have been repairing regularly all over the world successfully.

Sr. No.	Engine Make	Engine Model	Diameter
1	Caterpillar	3500B, 3500C & 3416B	135.00 mm
2	Caterpillar	D379, D398 & D399	127.00 mm
3	Allen	8BCS 12.8	165.00 mm
4	Daihatsu	14A	95.00 mm
5	Daihatsu	Pk-14A	90.00 mm
6	Daihatsu	PK-16	110.00 mm
7	Daihatsu	PS-18D	125.00 mm
8	Daihatsu	PS-20	135.00 mm
9	Daihatsu	VS-20	135.00 mm
10	Daihatsu	PS-22	155.00 mm
11	Daihatsu	DS-18	145.00 mm
12	Daihatsu	DS -18A	145.00 mm
13	Daihatsu	DS-19A	145.00 mm
14	Daihatsu	DL-19	145.00 mm
15	Daihatsu	PS-22	155.00 mm
16	Daihatsu	5DC-17	145.00 mm
17	Daihatsu	5DK-20	170.00 mm
18	Daihatsu	6DL-16	120.00 mm
19	Man	16/24	130.00 mm
20	Man	23/30, H	185.00 mm
21	Man	MTBH 625	170.00 mm
22	Man	20MTB-30	135.00 mm
23	MAK	M331 AK	180.00 mm
24	MAK	36	105.00 mm
25	MAK	423	126.00 mm
26	MAK	426	124.00 mm
27	MAK	M20	152.00 mm
28	Wartsila	L20	180.00 mm
29	Wartsila	R22H	180.00 mm
30	Wartsila	824TS	175.00 mm
31	Yanmar	6A L	125.00 mm
32	Yanmar	6M L	138.00 mm
33	Yanmar	6N18	145.00 mm
34	Yanmar	M220	170.00 mm
35	Yanmar	S185 L	140.00 mm
36	Yanmar	M200AL-DT	152.00 mm

 

We have successfully repaired thousands of crankshafts with small crankpin diameter and bearing lengths. We can share the details including pre and final inspection reports duly signed and stamped by the chief engineer of a vessel.

For more details of the Repair of engine and supply of bearings please email us on info@rapowersolutions.com Call at +91-9582647131

Comprehensive Crankshaft Restoration

Our repair process restores forged steel auxiliary engine crankshafts to optimal performance, including precision CNC grinding, metal build-up, and fine surface finishing. All units are crack tested, balanced, and tailored for EN24, EN19, or equivalent material grades. Repairs can be performed both on-site and dockside, minimizing vessel downtime and ensuring rapid reintegration.


Stringent Quality and Inspection Standards

Every crankshaft repair is rigorously inspected using ultrasonic and magnetic particle testing. Dimensional accuracy is held within 0.01 mm tolerance, and surface hardness reaches 55-60 HRC post repair. Customers receive both repair quality certificates and detailed dimensional reports, supporting compliance and continued reliability at sea.


Marine Engine Compatibility

Our services are tailored for a broad spectrum of vessels and engines, including MAN B&W, Yanmar, Wartsila, Cummins, and others. Whether it's single or multi-throw, single or multi-cylinder designs, we ensure the crankshaft is restored for marine auxiliary engines producing up to 1200 kW, supporting various mounting, stroke, and custom-fit dimensions.