LDW 1003M: Compact, quiet and powerful marine inboard Diesel engine
Discover the LDW 1003M inboard diesel engine: compact, silent and powerful. Available now at Cirifalco Group with full support and fast delivery.
Cirifalco Group is proud to introduce the LDW 1003M, the latest evolution in our line of marine inboard diesel engines. Designed for demanding marine environments, this model offers outstanding reliability, compact design and high performance under any condition.
Maximum reliability in all conditions
The LDW 1003M is part of a family of 4-stroke marine diesel engines (LDW 502M, LDW 702M, LDW 1003M, LDW 1404M), engineered to ensure safe navigation with a robust build, corrosion-resistant materials and advanced technical solutions. Features like liquid cooling with heat exchanger, zinc anode and a monolithic aluminum cylinder head make this engine highly durable and dependable.
Lightweight power with a compact footprint
With a displacement of 1028 cm³ and a dry weight of just 87 kg, the LDW 1003M strikes the perfect balance between size and power. The smart design of the cylinder head and the cross-flow intake and exhaust layout reduce the engine’s footprint without compromising structural integrity.
Quick specs:
- Cylinders: 3
- Displacement: 1028 cm³
- Bore x Stroke: 75 mm x 77.6 mm
- Dry weight: 87 kg
- Oil capacity: 2.4 liters
- Max operating tilt: 20°
Whisper-quiet operation with FOCS technology
Thanks to indirect injection integrated into the cylinder head, a ribbed block structure and gearless operation, the LDW 1003M offers significant reductions in vibration and noise emissions. The toothed belt drive and an oil pump driven by the crankshaft ensure smooth and quiet performance, ideal for long-distance cruising.
Fuel-efficient and easy to maintain
The patented pump-injector system ensures optimal fuel management, improving efficiency, performance and emissions. Plus, all maintenance-relevant components are easily accessible from the top, reducing downtime and service costs.

Built for the sea, engineered to last
With a cast iron engine block, re-boreable cylinder liners, anti-corrosion treatments and a stainless steel water-cooled exhaust, the LDW 1003M is perfectly suited for intensive, long-term marine use.
Why choose the LDW 1003M from Cirifalco Group
As an official distributor, Cirifalco Group offers you the chance to purchase the new LDW 1003M with full pre- and post-sale support, technical consulting and immediate availability.
When you choose your marine engine with us, you benefit from:
- Expert advice to select the most suitable model
- Genuine spare parts always in stock
- Reliable after-sales technical support
Interested in the new LDW 1003M marine engine?
Get in touch with our team to request a detailed technical sheet, receive a custom quote, or speak with a marine engine expert.
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