OMC 503751 Big Block Ignition Wire Set 503756 7.4/8.2

( Manufacturer Part Number: 503751 ), ( Part Type: Ignition Wire Block ), ( Warranty: 1 Year )

Review OMC Big Block Ignition Wire Set 7.4/8.2 fits COBRA

OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4mm/8.2mm) - High-Performance Ignition System Solution for Your Powerful Marine Engine

Experience the unparalleled power and reliability of the OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4mm/8.2mm), meticulously engineered to cater to the demands of high-performance marine engines. This ignition wire set is a testament to the fusion of precision, durability, and high-quality craftsmanship, making it an indispensable component in your marine engine's ignition system.

The OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4mm/8.2mm) offers a comprehensive solution for big block engines, ensuring seamless spark transmission between the ignition coil and spark plugs. With a diameter of 7.4mm and 8.2mm available to suit various engine configurations, this wire set guarantees optimal performance, regardless of the engine's size or power output.

Each wire in this set is carefully designed to meet the stringent requirements of high-performance marine applications. The high-temperature, silicone-jacketed wires provide unmatched insulation, withstanding the extreme heat generated by your engine. The tinned copper conductors offer exceptional conductivity, minimizing voltage drop and ensuring a robust spark for efficient combustion.

The OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4mm/8.2mm) is not just about performance; it's about peace of mind. The set includes high-quality spark plug boots, designed for a secure, leak-free connection. The boots are reinforced with braided steel for added durability, ensuring that they can withstand the rough and tumble environment of marine applications.

Investing in the OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4mm/8.2mm) signifies a commitment to unyielding performance, reliability, and safety for your marine engine. Trust this high-quality ignition wire set to ignite your engine's potential and propel you towards exhilarating marine adventures.

Pros, Cons, and Recommendation for OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4/8.2)

1. Compatibility: Designed for big block engines, this ignition wire set is suitable for a wide range of engines commonly found in marine applications, such as Johnson, Evinrude, and Mercury.

2. Durability: The ignition wires are made from high-quality materials, ensuring resistance to heat, oil, and marine environment conditions, extending the lifespan of the product.

3. Set Includes: The package comes with all necessary wires for a big block engine, including the primary and secondary ignition wires, coil wire, and spark plug wires, reducing the need for additional purchases.

1. Limited Fitment: Although the ignition wire set is designed for big block engines, it may not be compatible with all makes and models within this category. It's essential to verify the compatibility with your specific engine before purchasing.

2. Price: Compared to some aftermarket alternatives, this ignition wire set may be more expensive, which could be a disadvantage for budget-conscious consumers.

The OMC 503751/Cobra 503756 Big Block Ignition Wire Set (7.4/8.2) offers a high level of durability, compatibility with various big block engines, and a convenient all-in-one solution. However, it's crucial to consider the potential compatibility issues and its higher price point before making a purchase decision.

If you're in need of a reliable ignition wire set for your big block engine and are willing to invest in a high-quality product, this set is a recommended option. On the other hand, if you have a tight budget or require a more specific fitment, it may be worth exploring alternative solutions.

Details:

New old inventory.

part #: 503751 prices

• $40.00-$50.00

specifications ignitionstartin:

• for models: Cobra
• for makes: Omc
• mpn: 503751
• part type: Ignition Wire Block
• warranty: 1 Year

general ignitionstartin:

• Boat Parts > Inboard Engines Components > Ignition Starting Systems
• condition: New

offer ignitionstartin:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: December 2, 2025
• quantity: 1

shipping ignitionstartin:

• transit: 3-8 Days
• cost: $22.61
• carrier: UPS
• type: Calculated
• class: Standard
• service: UPS Ground

seller ignitionstartin:

• city: Wilmington, North Carolina
• # reviews: 2084
• rating: 100.0%

returns ignitionstartin:

• policy: No Returns

payments ignitionstartin:

• credit card: Mastercard
• wallet: Apple-pay
• other
• money order

Omc 503751 Is Similar To:

• 3854161 3854161 Ignition Coil For Omc-volvo (40.8% similar) Hope you find what you're looking for here. IE: does it fit this. Or will go there. What year engine fit. If there are any flaws with the item. IE: scratches, nicks and dents etc. All the parts listed have been inspected by our technicians and still useful life. Please verify the part number with ...(October 28th, 2017)
• 0172521 172521 0172521 Omc Evinrude-johnson Ignition (27% similar) Ign tune up kit...(May 6th, 2017)
• 0172524 Omc Genuine Evinrude Johnson Ignition Tune Up Kit New (35% similar) ...(March 23rd, 2018)
• 0172528 Omc Delco Distributor Ignition Points Rotor Condensor Kit 745419000721 (35% similar) Includes points, condenser, and rotor. Brand new, ignition tune up kit for v8 Mercuries and omc stern drives with Delco distributor...(December 3rd, 2018)
• 0176410 Omc Dual Ignition Kit (40.9% similar) Part number...(March 7th, 2017)
• 0313647 Omc Oil Pan Stringer Cobra (21.5% similar) 3 available pic is for reference. Exchange when available or credit towards new replacement only. For 2 piece rear main seal applications...(January 1st, 2017)
• 0580292 580292 Johnson Omc Stern Drive New Oem Ignition Distributor 707864383255 (34.5% similar) Brand new, genuine Johnson eventide omc distributor cap brush assembly. This is a factory original item, not aftermarket...(May 1st, 2018)
• 0580328 Omc Vintage Nos Lead Wire New (31.3% similar) Thanks again for looking. Be sure to ask about that before you pay...(September 29th, 2018)
• Ignition System Pack 25 Power Johnson 15 Omc 9.9 Hp 0581927 Evinrude 35 Outboard (18.7% similar) This is tested and in good working condition. Part number this is a PowerPC removed from a hp Johnson outboard. The plastic sleeve covering the wires must have gotten hot because it looks somewhat melted. This was used on many Johnson eventide outboard model's from however didn't get to the wires...(April 11th, 2015)
• Omc Ignition 583740 Wire Coil Plug Johnson Dual 0583740 Evinrude (32.5% similar) Ignition coil this item for sale is a brand new genuine Johnson eventide dual ignition coil...(April 10th, 2015)
• 0763549 Brp Omc Johnson Evinrude Boat Ignition Trim Harness 745419332334 (39.7% similar) If your physical destination is outside the lower 48 USA or common carriers such as USPS, ups FedEx do not deliver to address, free shipping available and you agree pay any charges. All measurements are approximate. Shipping delivery does this item have a free option. Check the tab. Buying more than...(November 14th, 2018)