Quick Verdict
If you're looking for a 300 HP marine inboard engine with a 6.2-liter V-8, the Mercury Mercruiser 300HP inboard motor is a strong option to evaluate. At USD 11,329.00, this is a new engine from Mercury Marine in a black finish. The product description highlights a 6.2-liter V-8 with strong torque for getting on plane quickly and smoothly, plus reduced sound and vibration at the helm. This combination makes it particularly interesting for boaters who want both performance and a more comfortable cockpit environment.
Who It Suits
This engine is aimed at boaters who have already decided they want a 300 HP inboard and prefer a V-8 format. The description emphasizes quick, smooth planing and a quieter helm, so it could be a good match if you spend long hours at the controls and want less noise and vibration. The 'new' condition also suggests that you're buying a unit that hasn't been previously installed, which may be a priority for some buyers.
What Stands Out
The 6.2-liter displacement is the headline feature here. A larger V-8 typically delivers strong low-end torque, and the description specifically calls out 'unparalleled torque and acceleration to get you on plane quickly and smoothly.' That's a meaningful benefit for heavier boats or for owners who frequently make stops and need to get back up to speed. Another standout is the focus on noise and vibration. The description mentions 'significant reductions in sound and vibration at the helm' and 'major improvements in the cockpit environment.' For anyone who has spent time on a loud, shaking boat, these improvements can make a real difference over a full day on the water. The engine is designed specifically for marine use, with an engineering approach that goes part by part and system by system for that purpose.
Trade-Offs
At USD 11,329.00, this is a major marine investment. The product information doesn't include specific fitment details like engine mount spacing, exhaust system compatibility, or wiring harness requirements. The boat brand attribute appears as 'Any Boat,' so you shouldn't assume it fits your hull without verification. You'll need to check whether this 6.2L package will work with your existing boat systems before ordering. Warranty terms and shipping details also aren't mentioned, so those would need to be reviewed separately.
Product Note
Mercury Mercruiser 300HP Boat Inboard Motor | 6.2L
This product is a 300 HP inboard engine from Mercury Marine with a 6.2L V-8 layout, priced at USD 11,329.00 and marked as new. The manufacturer part number is PM9XM06.2CAT. If you're set on a 300 HP V-8 inboard and want the described benefits of strong torque and a quieter helm, this is a worthy candidate. The main limitation is the lack of specific fitment information, so be prepared to do your own compatibility checks for your particular boat.
Bottom Line
The Mercury Mercruiser 300HP 6.2L inboard motor delivers the power and displacement that many boaters want from a V-8, with a design focus on smooth acceleration and a more comfortable cockpit. The listed price puts it firmly in the category of a serious marine purchase. If the engine fits your boat and you're comfortable with the installation requirements, the 6.2L's combination of torque, marine-specific engineering, and new condition makes it a compelling choice.
