Inboard boat engines are a popular choice for many boating enthusiasts due to their reliability, performance, and efficient power delivery. These engines are mounted inside the hull of the boat, typically in the center, providing a low center of gravity that enhances stability and handling. Inboard engines are connected to a driveshaft that runs through the bottom of the hull, turning a propeller located at the stern of the boat. This design allows for smoother and more efficient propulsion, making inboard engines ideal for various marine applications, from leisurely cruising to high-speed water sports.
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1-2 weeks delivery time The Vetus MPKC02 Intermediate Cable is a 2-meter (6.6 ft) Type C wiring loom designed for Vetus engine instrument panels. Featuring a 4-blade connector and standardized layout for Panel C systems, it ensures reliable electrical connection between Vetus monitoring components. Manufacturer specifications regarding material, application or color are not provided.
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$ 55.22
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1-2 weeks delivery time The Vetus MPKC04 Intermediate Cable is a 4-meter (13.1 ft) Type C wiring loom designed for Vetus engine instrument panels. It features a 4-blade connector and supports reliable electrical integration of Vetus monitoring and control components. No manufacturer information is provided regarding application specifics, material composition or color.
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$ 61.29
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1-2 weeks delivery time The Vetus MPKC06 Intermediate Cable is a 6-meter (19.7 ft) Type C wiring loom designed for Vetus engine instrument panels. Supplied as connection cable STM6951, it provides a standardized electrical interface using a 4-blade connector configuration. This cable is suitable for extended-distance routing in marine installations. Manufacturer specifications regarding material, color or application details are not supplied.
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$ 70.04
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1-2 weeks delivery time The Vetus MPKC12 Intermediate Cable is a 12-meter (39.4 ft) Type C wiring loom designed for Vetus engine instrument panels. As connection cable STM6952, it features a standardized 4-blade connector layout and is intended for long-distance routing between helm stations and engine systems. Manufacturer information regarding material, application or color is not provided.
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$ 92.95
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1-2 weeks delivery time The Vetus MPYA Y-Piece Adapter is a compact accessory used to provide a second or additional panel connection in a Vetus Type A cabling system by splitting one input into three outputs (A-A-A configuration). Panels and cabling are not included — this item serves purely as a Y-junction. Detailed specifications such as material, voltage rating, or number of outputs are not specified by the manufacturer.
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$ 175.79
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1-2 weeks delivery time The Vetus MPYB Y-Piece Adapter is an accessory used to split a single Type B panel feed into a dual/tri-panel configuration (B-B-B) within the Vetus instrument wiring system. Designed for adding a second or third panel, this connector accessory lacks published detailed specifications such as dimensions, number of outputs or material composition.
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$ 123.26
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1-2 weeks delivery time The Vetus STM6911 Interface PCB is designed for use with the MP34 Deluxe Engine Panel, enabling the retention of warning lights and an acoustic buzzer in addition to analogue gauge readings (oil pressure and water temperature). This module integrates into the MP34 system to provide combined monitoring functions.
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$ 73.25
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1-2 weeks delivery time The Vetus MPVB2 Connection Part B2 is an accessory specifically designed to connect the interface board STM6911 with the MP34 engine panel system. It ensures seamless integration of warning light and buzzer functionality alongside analogue gauge readings. Manufacturer specifications for material, voltage rating or colour are not detailed.
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$ 119.21
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1-2 weeks delivery time The Vetus MPVC2 is a connection module (“Part C2”) designed to link the interface board STM6911 with the MP34 engine panel system. It ensures integration of the interface PCB functions (warning lights, buzzer, analogue gauges) with the MP34 panel wiring. The manufacturer lists minimal specifications (Accessory system: 0; Description: Connection part C2 for connecting interface STM6911 – MP34).
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$ 29.63
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1-2 weeks delivery time The Vetus MPUA01 Universal Engine Cable Loom A is a 2 meter wiring harness designed for non-Vetus engines when used with Vetus instrument panels (MP21, MP22, MP34 series). It features a 4-blade connector layout, a disk area ratio (Fa/F) of 0.85 and is intended to simplify wiring in retrofit and non-standard installations.
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$ 78.80
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1-2 weeks delivery time The Vetus MPUB01 Universal Engine Cable Loom B is a 2-meter (6.6 ft) wiring harness designed for connecting non-Vetus engines to Vetus instrument panel systems using Type B panel cabling. It features a 4-blade connector layout and a disk area ratio (Fa/F) of 0.85. Material, application details and colour are not specified by the manufacturer.
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$ 35.03
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1-2 weeks delivery time The Vetus MPUC01 Universal Engine Cable Loom C is a 2-meter (6.6 ft) Type C wiring harness designed for connecting non-Vetus engines to Vetus instrument panel systems. It features a 4-blade connector, a disk area ratio (Fa/F) of 0.85 and is intended for retrofit installations where standard Vetus wiring is not present. Manufacturer details regarding material, colour and application are not specified.
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$ 27.62
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1-2 weeks delivery time The Vetus MP35374 wiring loom is a dedicated harness designed for integration with the MPA1KB (key-switch panel) and MPA1MB (monitoring light panel) systems. The loom provides pre-routed cabling to link these panels into the Vetus engine-monitoring architecture, simplifying installation and ensuring correct interconnection. Manufacturer technical details beyond compatibility are limited.
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$ 144.86
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1-2 weeks delivery time The Vetus PWLK wiring loom kit (12 V/24 V compatible) includes a complete harness for engine instrument panels, integrating a warning light panel with six monitoring LEDs, an acoustic alarm buzzer and a pre-heat/ignition starter switch. All cables are pre-terminated and colour-coded for easy installation, enabling connection of tachometer, voltmeter, oil pressure gauge and water temperature gauge.
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$ 709.27
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1-2 weeks delivery time The Mercury-Mercruiser Longblock Assembly 4.5L, 6 Cyl. is designed for optimal performance, replacing older models and ensuring smooth operation, complete with engine gaskets and a 1-year limited warranty.
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$ 24,465.19
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1-2 weeks delivery time The Mercury-Mercruiser Longblock Assembly 6.2L, 377 is engineered for high performance and durability, compatible with recent models, including engine gaskets for easy installation and a 1-year limited warranty.
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$ 29,252.50
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1-2 weeks delivery time The Mercury-Mercruiser Longblock 6.2L 2015-16 is designed for enhanced marine engine performance, replacing older models efficiently, with a 1-year limited factory warranty and includes engine gaskets.
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$ 27,450.51
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1-2 weeks delivery time The Mercury-Mercruiser New Longblock 8.2L 502 V8 offers superior performance and durability, designed for modern marine engines, complete with a cylinder head gasket set and a 1-year limited factory warranty.
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$ 39,198.96
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1-2 weeks delivery time The Mercury-Mercruiser 3.0L TKS Alpha Plus Series Dressed Engine is optimized for performance, offering 135 HP with a fully dressed marine design, constructed from 100% new Quicksilver components and comes with a 3-year limited factory warranty.
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$ 16,469.15
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1-2 weeks delivery time The Mercury-Mercruiser Quicksilver 350 MPI Alpha Dressed Engine Only delivers powerful performance with 300 HP and a robust design, featuring advanced cooling and fuel injection systems, ready to run on 87 Octane fuel.
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$ 27,742.35
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What are the key characteristics of an inboard boat engines compared to other boat engines?
Inboard marine engines are designed for durability and efficiency in marine use, offering a lower center of gravity and improved weight distribution compared to outboard and sterndrive engines. This engines are built on GM production lines strictly for marine use, ensuring reliability and longevity in harsh marine environments.
What factors influence the choice between a diesel and gasoline inboard engine?
The choice between a diesel and gasoline inboard engine depends on factors like fuel efficiency, durability, and maintenance costs. Diesel inboard engines are designed for long-term performance and reliability, offering better fuel economy and a longer lifespan, making them ideal for extended cruising and commercial marine applications. Gasoline inboard motors, on the other hand, provide higher throttle response and lower initial costs, making them a popular choice for recreational boating where speed and affordability matter.
What are the environmental benefits of modern inboard marine engines compared to older models?
Modern inboard marine engines are designed with advanced fuel injection systems and efficient cylinder head configurations, significantly reducing emissions compared to older models. Many replacement engines and remanufactured engine options offer improved fuel efficiency and lower engine noise, contributing to a cleaner marine environment while providing peace of mind for boaters. With advancements in engine package design and drop-in solutions, marine power engines ensure optimal performance while minimizing their environmental footprint in various engine applications.