

Marine Parts Supply is the independent MerCruiser distributor for the west coast — we stock and supply every gasoline sterndrive, inboard and tow-sport engine in the current Mercury Marine lineup. Bobtail blocks, complete sterndrive packages, and inboard installations all leave our floor ready to drop in.
MerCruiser engines are offered as both inboard and sterndrive applications and pair with the full Mercury drive lineup — Alpha One Gen 2, Bravo One / Two / Three (with X and XR variants) and the new Bravo Four S forward-facing drive. Inboard versions bolt up to ZF and Walter direct, downangle, and V-drive transmissions.
Give us a call — we've likely got what you're looking for in stock.
Sterndrive Engines

4.5L V6 Sterndrive
A clean-sheet V6 designed from the ground up for marine duty. The multi-point electronic fuel injection system fine-tunes the air-to-fuel ratio for the ideal combination of power and efficiency.
A powerful belt-driven alternator delivers 70 amps of charging power at wide-open throttle — perfect for keeping onboard electronics running long into the day.
Adaptive Speed Control maintains engine rpm despite changes in load or conditions, smoothing low-speed cruising, large swells, and tight turns.
Available as a sterndrive package with the Alpha One Gen 2 or any Bravo One / Two / Three drive.
200 HP
| Horsepower | 200 HP / 149 kW |
| Displacement | 4.5L |
| Engine type | V6, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 4400 - 4800 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 4.5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
250 HP
| Horsepower | 250 HP / 184 kW |
| Displacement | 4.5L |
| Engine type | V6, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 4800 - 5200 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 4.5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |

6.2L V8 Sterndrive
V8 muscle in a sterndrive package — outstanding power-to-weight ratio with an intake manifold tuned for airflow that builds exceptional torque for thrilling acceleration.
Multi-point electronic fuel injection, a 70-amp belt-driven alternator, and Adaptive Speed Control round out the package.
Built for sporty boats that want big-block grunt without the big-block weight penalty.
Available with Alpha One Gen 2, Bravo One / Two / Three (and X / XR variants), or a 370 HP Jet Ready inboard configuration.
300 HP
| Horsepower | 300 HP / 224 kW |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
350 HP
| Horsepower | 350 HP / 261 kW |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |

370 HP — Jet Ready inboard
| Horsepower | 370 HP / 276 kW |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |

8.2L V8 Sterndrive
Big-block torque to get heavy boats out of the hole and up to cruise quickly — without sacrificing fuel economy. MAG and MAG H.O. variants share the same proven 502 ci platform.
A 65-amp alternator delivers 917 watts of charging power at WOT, keeping batteries topped up for accessories on bigger hulls.
Engine Guardian monitors the engine and can adjust functions to help get you home safely.
Pairs with the Bravo One / Two / Three drives in any X or XR variant — or with the new Bravo Four S forward-facing drive on supported builds.
8.2 MAG ECT — 380 HP
| Horsepower | 380 HP / 283 kW |
| Displacement | 8.2L |
| Engine type | V8 |
| Max RPM (WOT) | 4400 - 4800 |
| Alternator | 65 amp / 917 watt |
| Oil sump volume | 7 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
8.2 MAG H.O. ECT — 430 HP
| Horsepower | 430 HP / 321 kW |
| Displacement | 8.2L |
| Engine type | V8 |
| Max RPM (WOT) | 4600 - 5000 |
| Alternator | 65 amp / 917 watt |
| Oil sump volume | 7 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
Inboard Engines

6.2L V8 Inboard
The same proven 6.2 V8 in a true inboard configuration — torque on tap to get inboard boats on plane, then efficiency-enhancing technologies to keep you there.
SmartCraft Digital Throttle & Shift is standard, with Engine Guardian and multi-point EFI working behind the scenes.
Available in 300 HP and 350 HP ratings. Suited to ZF / Walter direct, downangle, and V-drive transmissions.
300 HP
| Horsepower | 300 HP / 224 kW |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
350 HP
| Horsepower | 350 HP / 261 kW |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |

8.2L V8 Inboard
V8 big-block power for oversized inboard boats — quiet, smooth, and efficient enough to keep range respectable. Horizon DTS and H.O. DTS variants share the same long-block.
Digital Throttle & Shift integrates with SmartCraft gauges and joystick piloting where fitted.
Pairs with ZF / Walter direct, downangle and V-drive transmissions for inboard installations.
8.2 Horizon DTS ECT — 375 HP
| Horsepower | 375 HP / 280 kW |
| Displacement | 8.2L |
| Engine type | V8 |
| Max RPM (WOT) | 4400 - 4800 |
| Alternator | 65 amp / 917 watt |
| Oil sump volume | 7 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
8.2 H.O. DTS ECT — 425 HP
| Horsepower | 425 HP / 317 kW |
| Displacement | 8.2L |
| Engine type | V8 |
| Max RPM (WOT) | 4600 - 5000 |
| Alternator | 65 amp / 917 watt |
| Oil sump volume | 7 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
Tow Sport Inboards

T6200 Tow Sport Inboard
Tow-sport calibration on the 6.2L V8 — popping up heavy boats, holding low planing speeds, and keeping wakeboarders, surfers and skiers happy all day.
Smart Tow speed control and Joystick Piloting integration make launching and recovery easy on the captain.
Designed for direct-drive and V-drive inboard installations on tow-sport hulls.
T6200 ECT — 320 HP
| Horsepower | 320 HP / 239 kW |
| Peak torque | 403 lb·ft |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |
T6200 H.O. ECT — 370 HP
| Horsepower | 370 HP / 276 kW |
| Peak torque | 409 lb·ft |
| Displacement | 6.2L |
| Engine type | V8, 2-valve / cylinder pushrod |
| Max RPM (WOT) | 5000 - 5400 |
| Alternator | 70 amp / 882 watt (belt-driven) |
| Oil sump volume | 5 qts |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
| Recommended oil | NMMA Certified FCW 25W-40 synthetic blend |

T8200 Tow Sport Inboard
V8 big-block power and Smart Tow digital controls — built to transform the largest watersports boats into the ultimate adrenaline machines.
Tuned for tow sports with a specialized transmission and engine calibration that pops heavy boats out of the hole and holds them on plane down to 8 mph.
Seamlessly integrates with Mercury Smart Tow and Joystick Piloting systems to simplify every aspect of boat control.
Built for the heaviest tow-sport hulls — fits direct-drive and V-drive inboard installations.
380 HP / 283 kW
| Horsepower | 380 HP / 283 kW |
| Displacement | 8.2L |
| Engine type | V8 (8 cylinders) |
| Fuel injection | Multi-port injection |
| Cooling | Closed; freshwater cooled |
| Max RPM (WOT) | 4400 - 4800 |
| Engine weight | 1298 lbs / 589 kg |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
430 HP / 321 kW
| Horsepower | 430 HP / 321 kW |
| Displacement | 8.2L |
| Engine type | V8 (8 cylinders) |
| Fuel injection | Multi-port injection |
| Cooling | Closed; freshwater cooled |
| Max RPM (WOT) | 4400 - 4800 |
| Engine weight | 1298 lbs / 589 kg |
| Recommended fuel | 87 octane unleaded (R+M/2), 90 RON, up to 10% ethanol |
