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Mercury® MerCruiser®
8.2L

Simple. Easy. Powerful.

Built for ease – from maintenance to maneuvering.

  • HP / kW 430 / 321
  • Maximum RPM (WOT) 4600 - 5000
  • Engine type V-8
  • Displacement (L) 8.2
  • Fuel delivery system Multi-point Electronic Fuel Injection (MPI)

The specifications displayed here may not be indicative of the entire engine family; click on the “See All Models and Specs” link to view the specs in detail.

See All Models and Specs

Durable.

Durable.

A high-displacement footprint allows the V-8s to work smarter – not harder –with lower revs to ensure longer engine life. Engine Guardian is standard and averts potential problems with timely intervention, while the Cool Fuel Module prevents vapor lock.

High Technology.

High Technology.

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. SmartCraft® Digital Throttle & Shift provides silky-smooth operation.

Big Power From Little Gas.

Big Power From Little Gas.

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!

Corrosion Protection.

Corrosion Protection.

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 with the Bravo® drive.

Specifications

Mercury® MerCruiser®: 8.2L

  • HP / kW
    • 430 / 321
    Maximum RPM (WOT)
    • 4600 - 5000
    Engine type
    • V-8
    Displacement (L)
    • 8.2
    Bore and stroke
    • 4.47 x 4.00" / 113.5 x 101.6 mm
    Compression ratio
    • 8.75:1
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Engine control system
    • PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
    Fuel delivery system
    • Multi-point Electronic Fuel Injection (MPI)
    Air induction
    • High inertia induction system
    Ignition
    • Distributorless ignition with knock control
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • Single point air actuated
    Exhaust system
    • Tuned runner exhaust manifolds with 316 stainless steel tubular dry joint elbows
    Cooling system
    • Brass sea water pump
    • Closed cooling
    • Long life 5-year antifreeze
    Accessory drive system
    • Auto-tensioner
    • Serpentine belt
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine guardian system
    • SmartCraft Engine Guardian
    Dimensions (L x W x H)
    • 35 x 33 x 24" / 878 x 838 x 610 mm
    Weight (engine only)
    • 1,122 lbs / 509 kg
    Compatible drives
    • Bravo One X
    • Bravo One XR
    • Bravo Three X
    • Bravo Three XR
    • Bravo Two X
    Print Compare With Other Products
  • HP / kW
    • 380 / 283
    Maximum RPM (WOT)
    • 4400 - 4800
    Engine type
    • V-8
    Displacement (L)
    • 8.2
    Bore and stroke
    • 4.47 x 4.00" / 113.5 x 101.6 mm
    Compression ratio
    • 8.75:1
    Recommended fuel
    • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
    Engine control system
    • PCM 09 with SmartCraft CAN capability OBD-M diagnostics Dual oxygen sensors
    Fuel delivery system
    • Multi-point Electronic Fuel Injection (MPI)
    Air induction
    • High inertia induction system
    Ignition
    • Distributorless ignition with knock control
    Alternator amp / Watt
    • 65 amp / 917 watt
    Water drain system
    • Single point air actuated
    Exhaust system
    • Tuned runner exhaust manifolds with 316 stainless steel tubular dry joint elbows
    Cooling system
    • Brass sea water pump
    • Closed cooling
    • Long life 5-year antifreeze
    Accessory drive system
    • Auto-tensioner
    • Serpentine belt
    Recommended oil
    • NMMA Certified FCW 25W-40 Synthetic Blend
    Engine guardian system
    • SmartCraft Engine Guardian
    Dimensions (L x W x H)
    • 35 x 33 x 24" / 878 x 838 x 610 mm
    Weight (engine only)
    • 1,122 lbs / 509 kg
    Compatible drives
    • Bravo One X
    • Bravo One XR
    • Bravo Three X
    • Bravo Three XR
    • Bravo Two X
    Print Compare With Other Products

Performance Tests

Read the reviews.

Mercury engineering reports and performance data. All available on-line for your review.

BHB - Boat House Bulletin Review
Test Date Engine Boat Prop Type
9/2014 8.2 MAG ECT Mercury® MerCruiser® Cobalt - 302 Bravo Three® BHB -
11/2012 8.2 MAG H.O. ECT Mercury® MerCruiser® Baja - 30 Outlaw GT Bravo I® BHB -
9/2012 8.2 MAG H.O. ECT Mercury® MerCruiser® Cobalt - 323 Bravo Three® BHB -
7/2012 8.2 MAG H.O. ECT Mercury® MerCruiser® Chaparral - 327 SSX Bravo Three® BHB -
9/2013 8.2 MAG ECT Mercury® MerCruiser® Cobalt - R 5 Bravo Three® BHB -
9/2013 8.2 MAG ECT Mercury® MerCruiser® Cobalt - R 7 Bravo Three® BHB -
9/2013 8.2 MAG H.O. ECT Mercury® MerCruiser® Cobalt - 302 Bravo Three® BHB -
9/2013 8.2 MAG ECT Mercury® MerCruiser® Cobalt - A 25 Bravo Three® BHB -
8/2013 8.2 MAG ECT Mercury® MerCruiser® Larson - 23 Super Sport - BHB -
7/2013 8.2 MAG ECT Mercury® MerCruiser® Chris Craft - 25 Launch Bravo Three® BHB -
2/2013 8.2 MAG ECT Mercury® MerCruiser® Cruisers - 298 Bravo Three® BHB -
11/2012 8.2 MAG H.O. ECT Mercury® MerCruiser® Baja - 26 Outlaw - BHB -
11/2012 8.2 MAG H.O. ECT Mercury® MerCruiser® Baja - 278 Performance - BHB -
9/2012 8.2 MAG ECT Mercury® MerCruiser® Cobalt - 262 WSS Bravo Three® BHB -
7/2012 8.2 MAG ECT Mercury® MerCruiser® Chaparral - 350 Signature Bravo Three® BHB -
Test Date: 9/2014
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cobalt - 302
Prop: Bravo Three®
Type: BHB -
Test Date: 11/2012
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Baja - 30 Outlaw GT
Prop: Bravo I®
Type: BHB -
Test Date: 9/2012
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Cobalt - 323
Prop: Bravo Three®
Type: BHB -
Test Date: 7/2012
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Chaparral - 327 SSX
Prop: Bravo Three®
Type: BHB -
Test Date: 9/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cobalt - R 5
Prop: Bravo Three®
Type: BHB -
Test Date: 9/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cobalt - R 7
Prop: Bravo Three®
Type: BHB -
Test Date: 9/2013
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Cobalt - 302
Prop: Bravo Three®
Type: BHB -
Test Date: 9/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cobalt - A 25
Prop: Bravo Three®
Type: BHB -
Test Date: 8/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Larson - 23 Super Sport
Prop: -
Type: BHB -
Test Date: 7/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Chris Craft - 25 Launch
Prop: Bravo Three®
Type: BHB -
Test Date: 2/2013
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cruisers - 298
Prop: Bravo Three®
Type: BHB -
Test Date: 11/2012
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Baja - 26 Outlaw
Prop: -
Type: BHB -
Test Date: 11/2012
Engine: 8.2 MAG H.O. ECT Mercury® MerCruiser®
Boat: Baja - 278 Performance
Prop: -
Type: BHB -
Test Date: 9/2012
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Cobalt - 262 WSS
Prop: Bravo Three®
Type: BHB -
Test Date: 7/2012
Engine: 8.2 MAG ECT Mercury® MerCruiser®
Boat: Chaparral - 350 Signature
Prop: Bravo Three®
Type: BHB -

See All Performance Tests

Documents

Buy the Books
Buy the Books

You can order all available Mercury literature online or through any authorized Mercury dealer. Please have your outboard or sterndrive serial number before placing the order.

  • Operation, Maintenance, and Warranty Manuals
  • Parts Manual
  • Service Manual

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