{"id":3636,"date":"2026-07-15T14:39:04","date_gmt":"2026-07-15T14:39:04","guid":{"rendered":"https:\/\/titanparthub.com\/?post_type=product&p=3636"},"modified":"2026-07-15T14:39:10","modified_gmt":"2026-07-15T14:39:10","slug":"vetus-m3-29-marine-diesel-engine-27hp-compact-diesel","status":"publish","type":"product","link":"https:\/\/titanparthub.com\/?product=vetus-m3-29-marine-diesel-engine-27hp-compact-diesel","title":{"rendered":"Vetus M3.29 Marine Diesel Engine | 27hp Compact Diesel"},"content":{"rendered":"

Vetus M3.29 Marine Diesel Engine: Compact 27hp Power<\/strong><\/h1>\n

Smooth, Modern, and Space-Saving Performance for Mid-Size Sailboats<\/em><\/p>\n

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Introduction<\/strong><\/h3>\n

The\u00a0Vetus M3.29 marine diesel engine<\/strong>\u00a0is a standout in the compact diesel market, offering a unique blend of smooth three-cylinder power and an incredibly space-efficient design. At Wave Inboard Motors, our technicians are experts in a wide range of brands, and our hands-on\u00a0experience<\/strong>\u00a0with the Vetus M3 series has shown it to be a brilliant solution for sailboats where every inch of engine room space is precious. This\u00a027hp marine diesel engine<\/strong>\u00a0delivers the refined operation modern boat owners expect, without the bulk of traditional engines.<\/p>\n

Engineered for vessels between 30 and 36 feet, the M3.29 is the ideal\u00a0compact marine diesel<\/strong>\u00a0for both repower projects and new installations. Its modern design incorporates a standard fresh-water cooling system for extended life and a powerful alternator to meet modern electrical demands. For owners seeking an innovative, feature-rich, and smooth-running diesel, the\u00a0Vetus M3.29 for sale<\/strong><\/a>\u00a0represents a sophisticated and practical European-engineered option.<\/p>\n

This page will provide a detailed look at its innovative specifications, show how it compares to its key competitors, and outline why it is a smart choice for a\u00a0sailboat repower<\/strong>\u00a0project.<\/p>\n

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Technical Specifications Table<\/strong><\/h3>\n
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Specification<\/th>\nDetail<\/th>\n<\/tr>\n<\/thead>\n
Model<\/strong><\/td>\nVetus M3.29<\/td>\n<\/tr>\n
Engine Type<\/strong><\/td>\n3-Cylinder, 4-stroke, water-cooled diesel<\/td>\n<\/tr>\n
Displacement<\/strong><\/td>\n1.1 L (1100 cc)<\/td>\n<\/tr>\n
Max Output<\/strong><\/td>\n27 HP (20 kW) @ 3600 RPM<\/td>\n<\/tr>\n
Bore x Stroke<\/strong><\/td>\n69.6 mm x 76 mm<\/td>\n<\/tr>\n
Compression Ratio<\/strong><\/td>\n23.0:1<\/td>\n<\/tr>\n
Cooling System<\/strong><\/td>\nHeat Exchanger (Closed-Cooling)<\/td>\n<\/tr>\n
Starting System<\/strong><\/td>\n12V Electric Start<\/td>\n<\/tr>\n
Alternator Output<\/strong><\/td>\n12V \u2013 55A (115A optional)<\/td>\n<\/tr>\n
Dry Weight<\/strong><\/td>\n92 kg (203 lbs)<\/td>\n<\/tr>\n
Dimensions (LxWxH)<\/strong><\/td>\nApprox. 598mm x 505mm x 505mm<\/td>\n<\/tr>\n
Gear Ratio<\/strong><\/td>\n2.62:1 (Standard on Vetus gear)<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n
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Competitor Comparison Table<\/strong><\/h3>\n
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Feature<\/th>\nVetus M3.29<\/strong><\/th>\nYanmar 3YM30<\/strong><\/th>\nVolvo Penta D1-30<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Engine Type<\/strong><\/td>\n3-Cylinder, Electronic<\/td>\n3-Cylinder, Electronic<\/td>\n3-Cylinder, Electronic<\/td>\n<\/tr>\n
Power (HP)<\/strong><\/td>\n27 HP @ 3600 RPM<\/td>\n29 HP @ 3600 RPM<\/td>\n27 HP @ 3500 RPM<\/td>\n<\/tr>\n
Key Strength<\/strong><\/td>\nExtremely Compact, Lightest Weight<\/strong><\/td>\nYanmar Brand Reputation & Slightly Higher HP<\/td>\nVolvo Penta Dealer Network<\/td>\n<\/tr>\n
Weight<\/strong><\/td>\n203 lbs (92 kg)<\/strong><\/td>\n315 lbs (143 kg)<\/td>\n309 lbs (140 kg)<\/td>\n<\/tr>\n
Reliability<\/strong><\/td>\nExcellent<\/strong>\u00a0(Mitsubishi-based block)<\/td>\nExceptional<\/strong><\/td>\nVery Good<\/td>\n<\/tr>\n
Cooling System<\/strong><\/td>\nHeat Exchanger (Standard)<\/strong><\/td>\nHeat Exchanger (Standard)<\/strong><\/td>\nHeat Exchanger (Standard)<\/strong><\/td>\n<\/tr>\n
Innovation<\/strong><\/td>\nExcellent (Space-saving design)<\/strong><\/td>\nVery Good<\/td>\nGood<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Verdict:<\/strong>\u00a0The Vetus M3.29 wins decisively on compactness and weight, being significantly lighter and more space-efficient than its direct competitors. This makes it the premier choice for tight engine compartments and performance-oriented boats where weight savings are critical. While the Yanmar 3YM30 offers slightly more horsepower and the Volvo Penta has a strong network, the Vetus\u2019s innovative packaging and Mitsubishi-based reliability make it a top-tier contender for the savvy buyer.<\/p>\n

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Replacement Options Table<\/strong><\/h3>\n
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Consideration<\/th>\nRebuild Older Engine (e.g., Universal 25)<\/strong><\/th>\nInstall Remanufactured M3.29<\/strong><\/th>\nInstall Brand New M3.29<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Condition<\/strong><\/td>\nOutdated technology, potential for hidden issues<\/td>\nLike-new, zero hours, modern performance<\/strong><\/td>\nPerfect, factory-fresh with full warranty<\/td>\n<\/tr>\n
Warranty<\/strong><\/td>\nNone (on rebuild itself)<\/td>\nFull 1-Year Parts & Labor Warranty<\/strong><\/td>\nFull Vetus Factory Warranty<\/td>\n<\/tr>\n
Power<\/strong><\/td>\nOriginal HP<\/td>\n27 HP<\/td>\n27 HP<\/td>\n<\/tr>\n
Noise\/Vibration<\/strong><\/td>\nTypically higher<\/td>\nLow (Modern, balanced three-cylinder)<\/strong><\/td>\nLowest<\/td>\n<\/tr>\n
Total Project Value<\/strong><\/td>\nLowest (Investing in old tech)<\/td>\nHigh (Best value for performance)<\/strong><\/td>\nHighest (Peak performance & warranty)<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Expert Recommendation:<\/strong>\u00a0For most owners looking to upgrade from an older, heavier engine, a\u00a0professionally remanufactured Vetus M3.29<\/strong>\u00a0offers exceptional value. The combination of modern three-cylinder smoothness, a standard heat exchanger, and dramatic weight savings can transform a boat\u2019s performance and sailing characteristics. The space-saving design can also simplify installation. While a new engine is excellent, the remanufactured option provides these transformative benefits at a more accessible price point.<\/p>\n

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\u00a0Pros and Cons Table<\/strong><\/h3>\n
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Pros<\/th>\nCons<\/th>\n<\/tr>\n<\/thead>\n
Extremely Compact and Lightweight<\/strong><\/td>\nVetus-specific parts may not be as ubiquitous as Yanmar\/Volvo in some regions<\/td>\n<\/tr>\n
Smooth & Quiet Three-Cylinder Operation<\/strong><\/td>\nRequires a knowledgeable installer for optimal setup<\/td>\n<\/tr>\n
Mitsubishi-Based Block for Proven Reliability<\/strong><\/td>\n<\/td>\n<\/tr>\n
Standard Heat Exchanger Cooling for Longevity<\/strong><\/td>\n<\/td>\n<\/tr>\n
Powerful Alternator Options<\/strong><\/td>\n<\/td>\n<\/tr>\n
Innovative, Space-Saving Design<\/strong><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

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Link to Our Core Service Pages:<\/strong><\/p>\n