JOHNSON EVINRUDE OMC 300454 Ignition Lead Grommet

( Brand: Johnson Evinrude Omc ), ( Manufacturer Part Number: 300454 ), ( Part Type: Ignition )

Review JOHNSON EVINRUDE OMC Ignition Lead Grommet

The **Johnson Evinrude OMC 300454 Ignition Lead Grommet** is a precision-engineered, high-performance component designed specifically for Evinrude Outboard Marine Corporation (OMC) ignition systems, ensuring reliable electrical connectivity and protection for critical engine components. Crafted from durable, marine-grade materials, this grommet serves as a vital seal between the ignition lead and the engine s wiring harness, safeguarding against moisture, saltwater corrosion, and abrasion common challenges faced by marine environments. Its robust construction prevents water ingress, which can lead to electrical shorts, reduced spark performance, or complete ignition failure, thereby extending the lifespan of the ignition system and minimizing costly repairs. The grommet s snug, interference-fit design ensures a secure and consistent connection, reducing the risk of loose or damaged wires that could compromise engine performance, especially under high-stress conditions like rapid acceleration or rough water. Ideal for use on Evinrude E-TEC, E-TEC HP, and other compatible OMC outboard motors, this grommet is a straightforward yet essential upgrade for boaters seeking dependable ignition reliability. Whether maintaining a well-used vessel or upgrading a newer model, this component exemplifies the meticulous engineering that OMC is known for, delivering both functionality and peace of mind for marine enthusiasts who demand nothing less than top-tier performance from their equipment.

### **Pros and Cons of buying a Johnson/Evinrude OMC 300454 Ignition Lead Grommet**

1. **Compatibility** This part is specifically designed for Johnson/Evinrude Outboard Motors (OMC), ensuring a proper fit without modifications. It is part of the ignition system, which is critical for engine starting and performance.

2. **Durability** Grommets are typically made from rubber or synthetic materials that resist wear, oil, and moisture, helping to prevent electrical shorts or water ingress in the ignition lead.

3. **Easy Replacement** Replacing a worn or damaged grommet is a straightforward task that can be done with basic tools, reducing labor costs compared to professional repairs.

4. **Prevents Electrical Issues** A failing grommet can cause spark plug misfires, difficulty starting, or even complete ignition failure. Replacing it proactively can avoid more costly engine problems.

5. **Cost-Effective** Compared to replacing an entire ignition system or dealing with engine damage from electrical failure, this part is relatively inexpensive.

6. **Authentic OEM Fit** Using an original equipment manufacturer (OEM) part ensures reliability and compatibility with the motor s design, reducing the risk of performance issues.

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1. **Limited Availability** Depending on the region, this specific part may not be readily available at all marine supply stores, requiring online ordering or special requests.

2. **Potential Counterfeit Risk** Purchasing from untrusted sellers (especially online marketplaces) could result in receiving a low-quality or fake part that fails prematurely.

3. **Installation Requirement** While simple, improper installation (e.g., not seating the grommet correctly) could lead to leaks or electrical issues, requiring attention to detail.

4. **Wear Over Time** Even with proper installation, grommets degrade over time due to exposure to UV rays, saltwater, and engine heat, meaning they may need replacement periodically.

5. **No Warranty on Used/Aftermarket Parts** If purchasing from a third-party seller, the part may not come with a warranty, leaving the buyer responsible for any failures.

6. **May Not Solve Underlying Issues** If the ignition lead itself is damaged (not just the grommet), replacing only the grommet won t fix the problem, potentially wasting money.

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### **Conclusion**

The **Johnson/Evinrude OMC 300454 Ignition Lead Grommet** is a practical and cost-effective solution for maintaining the reliability of your outboard motor s ignition system. Its primary benefits lie in preventing electrical failures, ensuring a proper fit, and being an easy DIY replacement. However, potential drawbacks include limited availability, the risk of counterfeit parts, and the need for careful installation.

For most boat owners, the **pros outweigh the cons**, especially if the part is purchased from a reputable dealer (such as Johnson/Evinrude s official distributors or trusted marine supply stores). If you re experiencing ignition-related issues (e.g., misfires, starting problems), replacing the grommet is a logical first step before considering more expensive repairs.

### **Recommendation**

- **Buy from an authorized dealer or a well-reviewed online retailer** (e.g., Amazon, West Marine, or Johnson/Evinrude s official site) to ensure authenticity and warranty coverage.

- **Check for visible wear or cracks** in the existing grommet before purchasing if it s already damaged, replacement is necessary.

- **Follow installation instructions carefully**, ensuring the grommet is properly seated to prevent water or debris from entering the ignition lead.

- **Consider purchasing a spare** if you frequently encounter ignition issues, as grommets can fail unexpectedly.

If you re unsure about the part s condition or installation, consult a marine mechanic to confirm whether this is the correct fix for your symptoms. For most cases, this is a smart, low-cost preventive measure to keep your outboard running smoothly.

Details:

A new item might have shelf wear, it might have dust on it, in some cases, will protective grease gears, bearings, etc. Item must be in the original condition with all accessories, paperwork and packaging. Electrical parts are not returnable. To us, new means factory new, never installed or attempted on the machine it was designed to go.

Shipping substitutions may be made at our determination traduce shipping cost. Please view all photos in the listing prior to purchase so you understand what is included. In most cases, engine parts/accessories are not universal. Ignition Lead Grommet Johnson Evinrude 300454.

If you don't see it in the pictures, is not included. Just because it looks right doesn't make outright.

part #: 300454 prices

• $7.67-$19.85

specifications ouboaen:

• for makes: Johnson
• brand: Johnson Evinrude Omc
• mpn: 300454
• part type: Ignition

shipping ouboaen:

• transit: 6-12 Days
• type: Calculated
• cost: $0.00
• carrier: USPS, UPS
• class: Standard, Expedited, One-day
• service: USPS Ground Advantage, USPS Priority Mail, USPS Priority Mail Express, UPS Next Day Air

returns ouboaen:

• time: 30 Days
• policy: Returns Accepted
• paid by: Seller

seller ouboaen:

• city: Marysville, Washington
• rating: 100.0%
• # reviews: 3949

offer ouboaen:

• sold: 0
• availability: In Stock
• started: April 12, 2026
• options: Ship-to-home
• quantity: 9

payments ouboaen:

• wallet: Apple-pay
• credit card: Discover
• other

general ouboaen:

• condition: New
• Boat Parts > Outboard Engines Components > Other

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