OMC 986702 Engine 5.8L V8 584APRRGD

( Manufacturer Part Number: 986702 ), ( Part Type: Engine ), ( Country/region Of Manufacture: United States )

Review OMC 5.8l V8 Engine Complete fits COBRA

OMC 986702 Cobra 5.8L V8 Engine 584APRRGD - Powerful, Reliable, and High-Performance Marine Engine

The OMC 986702 Cobra 5.8L V8 Engine 584APRRGD is an exceptional piece of marine engineering, designed to deliver unparalleled power and performance on the water. This engine is part of the renowned Cobra series, known for their durability and reliability in challenging marine conditions.

The engine boasts a displacement of 5.8 liters, powered by an eight-cylinder design that ensures smooth and consistent power output. The 584APRRGD variant is specifically engineered for high-performance applications, offering a horsepower range in excess of 300, making it an excellent choice for high-speed boats and performance-oriented watercraft.

The OMC 986702 Cobra engine is equipped with a closed-loop electronic fuel injection system, which ensures precise fuel delivery for optimal combustion efficiency. This, in turn, results in reduced emissions, improved fuel economy, and a significant reduction in maintenance costs over the life of the engine.

The engine's design incorporates a robust cast iron block and aluminum heads, providing exceptional strength and durability. The four-valve-per-cylinder design, in combination with a high-lift camshaft, contributes to enhanced power and torque, ensuring your vessel has the acceleration and top-end speed you need for an exhilarating ride.

The OMC 986702 Cobra engine also features a dual water pump system, ensuring efficient cooling even under heavy loads. The engine's accessories are driven by a heavy-duty serpentine belt system, ensuring a quiet and maintenance-friendly operation.

In conclusion, the OMC 986702 Cobra 5.8L V8 Engine 584APRRGD is a high-performance, reliable, and durable marine power solution. Its powerful output, fuel-efficient design, and robust construction make it an ideal choice for boaters seeking an engine that can handle the rigors of high-speed water activities while providing unparalleled performance and reliability.

The OMC 986702 Cobra 5.8L V8 engine, model 584APRRGD, is a high-performance marine engine known for its power and durability. Here are some pros and cons to consider before making a purchase:

1. Powerful: With a displacement of 5.8L and a V8 configuration, this engine offers impressive power, making it suitable for high-speed boats and larger vessels.

2. Reliable: OMC engines have a reputation for being reliable, especially with proper maintenance.

3. High-performance: The 584APRRGD model is designed to provide quick acceleration and top speeds, making it a popular choice for performance-oriented boat owners.

4. Wide Availability: OMC engines are widely available, making it easy to find parts and service.

1. Expensive: Due to its high performance, this engine is generally more expensive than other marine engine options.

2. Fuel Consumption: The powerful nature of the engine can result in higher fuel consumption compared to smaller or less powerful engines.

3. Maintenance: Like any high-performance engine, the OMC 986702 Cobra requires regular maintenance to ensure it continues to perform optimally.

4. Noise: The V8 engine can be louder than smaller or inline engines, which may be a concern for some boat owners.

The OMC 986702 Cobra 5.8L V8 engine is a high-performance marine engine that offers impressive power, reliability, and quick acceleration. However, it is also more expensive, has higher fuel consumption, requires more maintenance, and can be louder than other options. If you prioritize power, performance, and speed and are willing to invest in a more expensive engine, this could be a good choice. If you are looking for a more budget-friendly option with lower maintenance requirements and less noise, you may want to consider other marine engine models.

Details:

Sits just as it was in the boat with everything still attached and ready to install a new. It will need a couple of new belts, but everything else seems to work perfectly. It starts right up and runs good as you can see in the video. Complete, good running 1991 OMC Cobra 5.8L V8 motor.

part #: 986702 prices

• $59.52-$399.99

specifications completegengin:

• for models: Cobra
• for makes: Omc
• mpn: 986702
• part type: Engine
• country/region of manufacture: United States

shipping completegengin:

• type: Fixed
• cost: $500.00
• class: Freight
• service: Flat Rate Freight

seller completegengin:

• city: Bullard, Texas
• rating: 100.0%
• # reviews: 773

offer completegengin:

• quantity: 1
• sold: 0
• options: Ship-to-home
• best offers: True
• started: May 2, 2025
• availability: In Stock

payments completegengin:

• other
• wallet: Paypal
• credit card: Discover

general completegengin:

• condition: Used
• Boat Parts > Inboard Engines Components > Complete Gas Engines

returns completegengin:

• policy: No Returns

Omc 986702 Is Similar To:

• 910373 5.7 Alternator Brace Cobra Omc 4.3 5.0 0910373 7.4 (24.3% similar) Omc omc cobra alternator brace , no rust, no salt corrosion or pitting. Shipping charges are not included. Part , 910373. Fresh water part in mint condition...(April 26th, 2015)
• Plate 5.0 0911287 4.3 5.7 Crankshaft Cobra Support Omc Pulley (23.4% similar) Quality every part listed for sale has been inspected prior to being placed for offer list price new was shipping charges are not included. No rust, no salt corrosion or pitting quality fresh water parts by sierra wing item details Ala crankshaft support plate for omc and omc cobra v 6 and v 8 ...(March 27th, 2015)
• Omc Water 912515 2.3 0912515 Exhaust Pipe fresh Cobra Part (27% similar) No caked up carbon inside. 3 ford marine engines. Excellent condition. Shipping charges are not included...(April 12th, 2015)
• 0912519 Omc Intake Hose Water 912519 Thermostat 2.3 Cobra Manifold. (25.6% similar) No cuts or burned areas. Part , quality, satisfaction and service guaranteed Ty quality every part listed for sale has been inspected prior to being placed for offer. 3 water hose thermostat to intake manifold quality fresh water parts by sierra wing item details Ala clean fresh water hose that goes...(April 26th, 2015)
• Assist Bracket 0913279 Switches Micro Cobra Shift 2.3 913279 1988-90 Omc (23% similar) 3 marine engines bracket part , it worked perfectly while on the boat. Original omc paint. Micro switches also bench tested good. Quality fresh water parts by sierra wing item details Ala very clean, no rust bracket assembly with good micro switches. Applications for omc cobra quality every part ...(May 25th, 2015)
• 0914260 Omc Cobra 2.3 Camshaft Retainer Plate 914260 (43.1% similar) Shipping charges are not included. Omc cobra 3 camshaft retainer plate quality fresh water parts by sierra wing item details loam cobra camshaft retainer plate for...(July 30th, 2016)
• 2.3 3.0 5.8 0983932 Volvo Rear Cobra Sx Motor 5.7 Mount 4.3 Omc 5.0 983932 (27.4% similar) Rubber is playable, not dried out shipping charges are not included. Quality every part listed for sale has been inspected prior to being placed for offer. Fresh water mount. This gives you a reasonable time to install or otherwise check the part out, without having to go through a mad rush...(April 25th, 2015)
• Shift 0984168 Wire Core 984168 5.8 3.0 4.3 5.0 5.7 Cable Cobra Omc 2.3 (23.3% similar) No rust or salt corrosion. Quality fresh water parts by sierra wing item details Ala shift cable core wire for omc cobra out drives. Part , no longer available new. Shipping charges are not included. Does not come with cable sleeve. Excellent condition. Cable only quality every part listed for sale ...(March 28th, 2015)
• Control Cobra Module 3.0 87 2.3 984281 0984281 Shift 2.5 1986 Omc 88 (22% similar) No problems. Marine engines. Omc cobra shift control module. Part , fits omc cobra 4 cylinder engines please review pics and part for proper applications. 3/2 shipping charges are not included...(April 20th, 2015)
• 0984563 Steel Carb Omc V6 4.3 Line Stainless Cobra Fuel 2v Pump (29.8% similar) Clean fresh water part. This gives you a reasonable time to install or otherwise check the part out, without having to go through a mad rush. Quality every part listed for sale has been inspected prior to being placed for offer. Shipping charges are not included. Part list price new 44. No leaks, ...(April 30th, 2015)
• Fresh 0985470 88-89 Water Omc 90 2.3 Housing Part Cobra 985470 Thermostat (29% similar) Shipping charges are not included. It has none. 3 engines it has been carefully inspected for any cracks, welds and defects. Part , fits cobra this housing is in excellent condition original omc part. No rust, no caked up corrosion inside. Quality every part listed for sale has been inspected prior ...(April 25th, 2015)