Pair Yanmar 6LY-UTE 315HP Marine Inboard Diesel Engine
$76,088.00
- Description
Description
Pair Yanmar 6LY-UTE 315HP Marine Inboard Diesel Engines
MSS Motorsports UG offers this pair of Yanmar 6LY-UTE marine diesel engines for buyers planning a twin-inboard installation or replacement-engine project. Each engine carries a published maximum rating of 315 metric horsepower, giving the pair a combined maximum flywheel output of 630 MHP.
Built around Yanmar’s 5.184-litre, six-cylinder LY platform, the 6LY-UTE combines direct fuel injection with turbocharging and intercooling. For owners replacing existing 6LY-UTE engines, this pair is an option to assess against the vessel’s current installation, gearbox arrangement and operating requirements.
Twin Yanmar Diesel Power for Your Repower Project
Replacing both propulsion engines provides an opportunity to plan the port and starboard installations together. Review engine specifications, gearbox ratios, controls and service requirements as one package rather than arranging two separate purchases.
This pair of Yanmar marine inboard engines can be considered for motor cruisers, sportfishing boats and other twin-engine vessels where the hull, propulsion system and intended duty suit the documented engine ratings.
Maximum output and continuous output are different ratings. The manufacturer’s documentation lists 315 PS at 3,300 rpm as maximum output and 260 PS at 3,100 rpm as continuous output per engine. Your installer should use the appropriate rating when assessing the vessel’s operating profile.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Yanmar |
| Engine model | 6LY-UTE |
| Package quantity | Two engines |
| Engine type | Six-cylinder, four-stroke marine diesel |
| Displacement | 5.184 litres per engine |
| Bore × stroke | 100 × 110 mm |
| Maximum output per engine | 231.7 kW / 315 PS at 3,300 rpm |
| Combined maximum engine output | 463.4 kW / 630 PS at the flywheels |
| Continuous output per engine | 191.2 kW / 260 PS at 3,100 rpm |
| Combustion system | Direct injection |
| Aspiration | Turbocharged and intercooled |
| Engine cooling | Water-cooled |
| Starting | Electric |
| Condition, operating hours and included equipment | Confirm in the quotation for the actual pair |
The advertised 315HP designation refers to metric horsepower, also written as PS or MHP. Combined engine output is calculated before gearbox and driveline losses. yanmar.no
Model specifications are documented in the Yanmar 6LY(M)-UTE service manual specifications.
Gearbox Matching and Installation
For a Yanmar 6LY-UTE engine and gearbox package, specify your required reduction ratio and whether you intend to retain the existing transmissions.
A twin-engine installation requires coordinated checks of gearbox capacity, shaft rotation, couplings, engine mounts, cooling connections and exhaust layout. The port and starboard arrangements must suit the vessel’s propellers and drivetrain.
For replacement projects, send photographs of both engine plates and gearbox plates, together with the boat’s make, model and current propulsion details. These help establish the scope of the repower before ordering.
For a newer common-rail alternative, explore the Yanmar 6LY400 marine inboard diesel engine as a separate repower option.
Package Details, Condition and Ownership Support
Request a written offer identifying both engine serial numbers, condition, recorded operating hours and any available service or inspection records. The quotation should also specify whether gearboxes, instrument panels, wiring, mounts and other accessories are included.
Warranty coverage depends on the actual engines and supply terms. Confirm the provider, duration, exclusions and any installation requirements in writing.
For ongoing ownership, use the correct engine identification when requesting manuals and service parts. The official Yanmar service FAQs explain how to obtain documentation for earlier engines and identify the model and serial number.
Frequently Asked Questions
Is the 315HP rating for each engine or the pair?
It is the published maximum metric horsepower rating for each engine. The two engines together have a combined maximum flywheel rating of 630 MHP.
Are marine gearboxes included?
The quotation must confirm the supplied equipment. State your required gearbox ratio and whether you need engines only or a package with transmissions.
Are these engines new, used or reconditioned?
Request confirmation of the actual pair’s condition, operating hours and supporting records. The model name alone does not establish their condition.
Request a Quote for the Pair
Request pricing for the pair of Yanmar 6LY-UTE engines from MSS Motorsports UG. Include your vessel details, required gearbox ratio, preferred package and how soon you intend to purchase.
Provide your billing and delivery addresses for an official quotation covering the engine pair, included equipment and applicable delivery costs.
Plan your twin-engine repower with a clearly specified package and a written quotation for both engines
