2025 Mercury Marine® 8.2 MAG ECT Base
- Year 2025
- Make Mercury Marine®
- Model 8.2 MAG ECT
- Engine Control system: PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
2025 Mercury Marine® 8.2 MAG ECT
Simple. Easy. Powerful.Built for ease – from maintenance to maneuvering.
Features may include:
Durable.- A high-displacement footprint allows the V-8s to work smarter – not harder – with lower max rpm to ensure longer engine life. Engine Guardian is standard and averts potential problems with timely intervention, while the Cool Fuel Module prevents vapor lock.
- Long runner intakes pack more air into the chamber, while the advanced MPI system fine-tunes the fuel-to-air mix, producing more power on combustion. High performance aluminum cylinder heads improve mid-range acceleration. Optional SmartCraft® Digital Throttle & Shift provides silky-smooth operation.
- These big blocks put all the power you want on the line when you need it – just the ticket for larger cruisers. The high-output alternator generates 65 percent more power than previous models. Yet the MPI and ECT systems also ensure maximum fuel economy. And these engines take 87-octane gas!
- The MercFusion Paint System creates an outer seal against the elements, while MerCathode® provides automatic protection against galvanic corrosion. For maximum defense against saltwater effects, the SeaCore® industrial hardcoat anodizing system and closed-cooling circuit is available.
Engine
Engine
Control system: PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
Engine Power
380 HP (283 KW)
Engine Type
V8
Displacement
8.2 L
Throttle
Full: 4600 - 5000 RPM
Alternator
65 amp (917 watt)
Gear Ratio (Primary)
8.75:1
Oil Type
Recommended: NMMA Certified FCW 25W-40 Synthetic Blend
Bore
4.47" (113.5 mm)
Stroke
4.00" (101.6 mm)
Exhaust
Tuned runner exhaust manifolds with 316 stainless steel tubular dry joint elbows
Ignition
Distributorless ignition with knock control
Fuel System
Fuel System
Delivery: Multi-point Electronic Fuel Injection (MPI) | Recommended: Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Lights and Safety
Security System
Engine guardian system: SmartCraft Engine Guardian
Dimensions
Length
35" (878 mm)
Width
33" (838 mm)
Height
24" (610 mm)
Weights
Dry Weight
Engine only: 1,122 lbs (509 kg)
Features
Features
Air induction: High inertia induction system | Water drain system: Single point air actuated | Cooling: Brass sea water pump / Closed cooling / Long life 5-year antifreeze | Accessory drive system: Auto-tensioner / Serpentine belt