KIMI provides complete overhaul, repair and life-extension solutions for low-speed 4-Stroke marine diesel engines. Supporting leading engine makers including MAN B&W, WinGD, Sulzer/Wärtsilä and Mitsubishi UE, KIMI delivers turnkey services covering inspection, dismantling, precision measurements, component reconditioning, advanced machining, reassembly, commissioning and sea trials. Through laser cladding, AI-driven robotic welding, reverse engineering, heavy-duty CNC machining and certified quality control, KIMI restores critical engine components to applicable OEM specifications, helping vessel operators reduce downtime, lower lifecycle costs and maximize engine reliability.
Select the maker, engine family and model.
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
From onboard overhaul to complete in-house reconditioning.
KIMI provides comprehensive engine overhauling services for 4-Stroke engines, combining onboard expertise with in-house component reconditioning, precision machining and quality control.
Onboard Engine OverhaulingCylinder & Piston Unit OverhaulApproved Crankshaft RepairOn-site Crankshaft Machining & AnnealingBearing Inspection & Replacement
KIMI provides complete overhauling services including onboard engine overhaul, cylinder cover reconditioning, exhaust valve repair, piston and piston rod reconditioning, cylinder liner honing, bearing restoration, camshaft repair, fuel system overhaul, and manufacturing of critical components.
KIMI’s riding teams have extensive hands-on experience with a wide range of 4-stroke marine engines, including models such as:
Our expertise also extends to many other major engine makers and models, ensuring reliable support across different vessel types and operational requirements worldwide.
With more than 40 years of marine engineering experience, KIMI provides highly skilled boarding teams capable of supporting both 2-stroke and 4-stroke engines, propulsion systems, and auxiliary machinery worldwide. Combined with advanced repair technologies, portable machining equipment, and 24/7 availability, we deliver fast, reliable, and cost-effective onboard solutions that minimize vessel downtime
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