Description

New MerCruiser 350 MPI 300 HP Bravo Crate Engine – 8M0092946 / 8M0187352

The MerCruiser 350 MPI 300 HP Bravo is a new, partially dressed petrol marine engine assembly for compatible replacement and repower projects. Its 5.7-litre, 350-cubic-inch V8 platform combines multi-port fuel injection with a published output of 300 HP at 5,000 RPM.

Available from Marine Inboard Specialists under references 8M0092946 / 8M0187352, this engine gives owners of a suitable earlier MPI installation a route to replace the engine assembly while assessing existing accessories for reuse. It is particularly relevant to buyers planning a MerCruiser 5.0L to 5.7L conversion.

Multi-Port Fuel Injection and Marine V8 Construction

MPI means Multi-Port Fuel Injection. Individual injectors deliver fuel to the engine’s intake ports, distinguishing this configuration from a carbureted replacement engine. For a repower, the fuel system and engine controller must work together in the correct configuration.

Manufacturer literature identifies a 75 mm throttle-body unit, injector-and-rail assembly, roller camshaft, nodular iron crankshaft and Quicksilver iron cylinder heads. These details help your installer identify the assembly and compare it with the existing engine.

The practical benefit is a replacement marine engine with its core mechanical, induction and ignition components assembled. Your installer can then establish which boat-side systems and accessories are suitable to retain.

Technical Specifications

The following model-specific details are published in Mercury’s 2025 Repower Product Guide, page 20, for 8M0187352. The earlier reference 8M0092946 appears in its 2020 Quicksilver Product Guide.

These specifications describe the published engine assembly and application; the quotation should identify the exact unit supplied.

The rated-power RPM above is not a substitute for the applicable full-throttle operating range. Use the documentation for the completed engine installation when selecting the propeller and commissioning the boat.

Compatibility with Earlier MerCruiser MPI Installations

Mercury’s product guides identify this 350 MPI Bravo crate engine as a power-upgrade option for 2002–2004 MerCruiser 5.0L Bravo installations within serial range 0M600000–0W029410, using a single knock sensor and Gen II Cool Fuel.

The serial range refers to the existing engine application being assessed. Provide a clear photograph of that engine’s identification plate, along with its model and current controller part number. Boat year alone is insufficient to establish the required configuration.

For a MerCruiser 5.7L replacement engine enquiry involving a different original model or serial range, request a separate compatibility check. Matching displacement or horsepower does not establish that the fuel system, controller and transferred accessories will work together.

What Does “Partially Dressed” Mean?

A partially dressed crate engine is a major engine assembly that still requires additional components to form a working propulsion package. Plan the installation around both the supplied assembly and the equipment to be transferred or purchased.

Mercury’s published component list for this model includes the harmonic balancer, oil pan, circulating water pump, spark plugs, ignition leads and crank sensor.

Ask for an itemized quotation identifying the starter, alternator, seawater pump, exhaust components, engine mounts, coupler, flywheel, accessory drive and wiring requirements. Establish which items form part of the offer and which your installer intends to reuse.

The circulating water pump listed with the engine should not be taken as confirmation that the complete seawater cooling system is supplied. Likewise, “Bravo” identifies the intended sterndrive application; the quotation should establish whether a drive or transom assembly is included.

Engine Controller and ECM/PCM Voucher

A 5.0L MPI to 350 MPI repower requires the appropriate engine controller for the replacement configuration. Mercury’s service guidance provides controller selections by original serial range, drive application and cooling arrangement.

Manufacturer product literature describes an ECM or PCM voucher for qualifying upgrades. Confirm that the offered engine includes the applicable voucher, that the programme remains available for your destination, and how the controller exchange or credit will be handled.

This matters when comparing quotations: establish the controller requirement and its cost before calculating the complete installation budget.

Planning Your Bravo Sterndrive Repower

For installation planning, assess the engine, drive and supporting systems together. Provide the Bravo drive model, serial number and gear ratio, plus the boat make, model, year and normal operating load.

Mercury’s repower guidance explains that moving from a 5.0L to a 5.7L engine may require a change in propeller pitch or drive ratio. Have the installer confirm the boat’s approved power and loading limits, then verify operating RPM during commissioning.

Also ask the installer to examine the equipment being retained. If the previous engine failed after overheating or water ingestion, include investigation of the cooling and exhaust systems before putting the replacement into service.

Compare Related MerCruiser 350 MPI Engines

If your installation uses the later MPI configuration, compare the MerCruiser 350 MPI 300 HP Bravo/Alpha – 8M0093550. Manufacturer literature associates that reference with later applications using dual knock sensors and Gen 3 Cool Fuel.

For a broader engine package, explore the MerCruiser 350 MPI Bravo 300 HP – 8M0136294 / 8M0187360, listed as a fully dressed assembly.

Compare the supplied equipment and installation requirements for each option. The same 300 HP rating can accompany different package contents and application requirements.

MerCruiser 350 MPI Price, Delivery and Warranty

Request a MerCruiser 350 MPI 300 HP Bravo price covering the correct engine reference, installation accessories and delivery destination. Your written quotation should specify the scope of supply, availability, dispatch estimate, shipping charges and applicable taxes.

Obtain the warranty terms for the actual unit supplied, including the warrantor, coverage period and installation or registration requirements. Confirm controller-voucher arrangements separately so the engine quotation and complete repower budget are clear.

Frequently Asked Questions

Does “350” mean this engine produces 350 HP?

No. “350” refers to the engine’s displacement in cubic inches. This model is rated at 300 HP.

Is this a complete engine-and-drive package?

It is described as a partially dressed engine assembly. The itemized quotation should establish the additional accessories, sterndrive equipment and installation work included.

Can it upgrade my MerCruiser 5.0L MPI Bravo?

It is a published upgrade option for the specified earlier application. Provide the engine serial number and controller details for a configuration check before ordering.

Can I use it to replace an older EFI or TBI engine?

Do not treat this partial MPI assembly as a direct replacement. Mercury’s service guidance distinguishes MPI crate-engine replacements from EFI and TBI installations; those require a different repower assessment.

Are 8M0092946 and 8M0187352 the same reference?

Mercury’s earlier guide identifies 8M0092946, while the 2025 guide identifies 8M0187352 for the described earlier Bravo application. Have the quotation identify the actual part number and assembly supplied.

Can I retain my existing Bravo drive?

Potentially, after assessing its model, ratio, condition and suitability for the completed engine installation. The propeller and operating RPM also need review.

Request Your MerCruiser 350 MPI Bravo Quotation

Looking for a MerCruiser 350 MPI 300 HP Bravo engine for sale? Contact Marine Inboard Specialists with your boat details, existing engine serial number, ECM/PCM identification, Bravo drive serial number and gear ratio. Include photographs of the identification plates, how soon you want to purchase, and your billing and delivery addresses so the quotation can cover the required engine package and destination.