1. Boat Outboard Engines To Buy
  2. sku: 23045804728934752
  3. YAMAHA 6GR-42615-00-00

YAMAHA 6GR-42615-00-00 Seal B-120

fits make: Yamaha.

6gr-42615-00-00 Yamaha New Oem Seal Pn# B-120

( Manufacturer Part Number: 6GR-42615-00-00 ), ( Part Type: Seal )

Review YAMAHA New Oem Seal Pn#

The **Yamaha 6GR-42615-00-00 Seal (B-120)** is a high-performance, precision-engineered mechanical seal designed specifically for Yamaha outboard motors, ensuring optimal reliability and longevity in demanding marine environments. This seal is part of Yamaha s proprietary **B-120 series**, a robust and durable solution crafted to withstand the harsh conditions of saltwater, extreme temperatures, and continuous mechanical stress encountered during recreational boating, fishing, or commercial applications. Constructed from a **high-grade elastomer material**, the seal features a tight, interference-fit design that minimizes leakage while maintaining smooth operation, even under high-speed or heavy-load conditions. Its **reinforced lip profile** and **optimized spring tension** provide consistent sealing performance, reducing the risk of water intrusion into the motor s internal components, which could lead to corrosion, reduced efficiency, or catastrophic failure. The seal s **smooth, low-friction surface** is engineered to reduce wear on the corresponding shaft, extending both the seal s lifespan and the overall durability of the outboard s drive system. Ideal for use in **2006 and later Yamaha outboards** (including models like the FX, F200, F300, and F400 series), this seal is a direct replacement for the original equipment manufacturer (OEM) part, ensuring a perfect fit and seamless integration with Yamaha s proprietary shaft and housing configurations. Whether installed during routine maintenance or as part of a preventive overhaul, the **6GR-42615-00-00 Seal (B-120)** delivers the confidence of a factory-spec seal, helping to preserve the performance, fuel efficiency, and resale value of your Yamaha outboard for years to come.

The **Yamaha 6GR42615-00-00 Seal B-120** is a high-performance oil seal designed for Yamaha outboard motors, particularly those in the 6GR series (such as the 6GR-FE, 6GR-GSE, or 6GR-GSM). Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Yamaha 6GR42615-00-00 Seal B-120**

1. **High-Quality Construction**

The seal is manufactured by Yamaha, a brand known for precision engineering and durability in marine applications. It is designed to withstand the demanding conditions of outboard motors, including high RPMs, heat, and vibration.

2. **Compatibility with Yamaha 6GR Engines**

This seal is specifically engineered for the 6GR series, ensuring a proper fit and optimal performance. Using an OEM seal reduces the risk of leaks or premature wear caused by improper sizing or material mismatches.

3. **Long Service Life**

Yamaha oil seals are built to last the life of the engine if installed correctly and maintained properly. The B-120 variant is likely a robust design with reinforced lips or high-quality elastomers to resist oil degradation and temperature fluctuations.

4. **Reduced Risk of Contamination**

A properly seated seal prevents oil leaks, which can contaminate the water intake or surrounding components. This helps maintain engine efficiency and prolongs the life of other systems like the cooling system or transmission.

5. **Ease of Installation**

As an OEM part, the seal is designed to fit seamlessly into the engine s housing. Yamaha provides clear installation instructions, and the seal is typically straightforward to replace with basic tools, reducing downtime.

6. **Compatibility with Yamaha Warranty**

Using an original Yamaha seal may help preserve the engine s warranty, as aftermarket parts could void coverage if they fail prematurely due to inferior quality.

7. **Reliability in Harsh Conditions**

The seal is likely tested for performance in various marine environments, including saltwater exposure, which can corrode or degrade cheaper alternatives over time.

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### **Cons of the Yamaha 6GR42615-00-00 Seal B-120**

1. **Higher Cost Compared to Aftermarket Alternatives**

OEM parts from Yamaha are typically more expensive than third-party or generic oil seals. For budget-conscious buyers, aftermarket options (e.g., from brands like **Sealmaster, Gates, or Flexseal**) may offer similar performance at a lower price.

2. **Limited Availability Outside Yamaha Dealers**

While Yamaha parts are widely available through authorized dealers and marine supply stores, some smaller or regional retailers may not stock this specific seal. This could require ordering online or waiting for delivery, adding inconvenience.

3. **Potential for Overkill for Low-Mileage or Well-Maintained Engines**

If the engine is relatively new or has been well-maintained with regular oil changes, the seal may outlast its necessity. In such cases, purchasing an aftermarket seal could be a cost-effective alternative.

4. **Risk of Overpaying for Brand Name**

Some buyers may perceive Yamaha as a premium brand and feel they are paying extra for the name rather than just the functional performance of the seal. While quality is generally high, the price may not always justify the investment for every user.

5. **Installation Requires Care**

Improper installation (e.g., not cleaning the housing, misalignment, or overtightening) can damage the seal or void its effectiveness. While Yamaha provides instructions, inexperienced DIYers might struggle, potentially leading to additional costs for professional labor.

6. **Environmental and Ethical Considerations**

Some consumers prefer to avoid purchasing from brands with less sustainable practices. While Yamaha is generally environmentally conscious, this is a subjective consideration for some buyers.

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### **Conclusion**

The **Yamaha 6GR42615-00-00 Seal B-120** is a high-quality, reliable oil seal that offers superior performance and longevity for Yamaha 6GR outboard engines. Its OEM status ensures compatibility, durability, and peace of mind, particularly for serious boaters or those who prioritize long-term engine health. However, the higher cost and potential overkill for well-maintained engines may make aftermarket alternatives more appealing to budget-conscious or low-mileage users.

For most users who value **reliability, warranty compatibility, and long-term performance**, the Yamaha seal is the best choice. If cost is a primary concern and the engine is in good condition, a **high-quality aftermarket seal** (e.g., from **Sealmaster or Gates**) could be a reasonable substitute without sacrificing too much durability.

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### **Recommendation**

- **Buy the Yamaha 6GR42615-00-00 Seal B-120 if:**

- You prioritize OEM quality and warranty coverage.

- Your engine is high-mileage, heavily used, or prone to leaks.

- You want the most reliable seal with minimal risk of failure.

- You are comfortable paying a premium for a trusted brand.

- **Consider an aftermarket alternative if:**

- You are on a tight budget and the engine is well-maintained.

- You are confident in selecting a reputable aftermarket brand (e.g., **Sealmaster, Gates, or Flexseal**).

- You prefer to explore cost-effective options without compromising too much on performance.

Ultimately, the **Yamaha seal is the safest and most practical choice** for most Yamaha 6GR owners, especially those who rely on their engines for frequent or heavy use. For casual boaters or those with newer engines, an aftermarket seal may suffice. Always ensure proper installation and follow Yamaha s maintenance guidelines to maximize seal life.

Details:

NEW OEM YAMAHA SEAL PN# 6GR-42615-00-00 B-120. I do make mistakes every now and then. INVENTORY B-120. Ships free to the lower 48 of US.

These parts have been sitting on the shelf for a while and may damaged boxes, The are brand new. I will work with you to make sure are happy.

part #: 6gr426150000 prices

  • $6.73-$99.99

specifications ouboaen:

  • for makes: Yamaha
  • mpn: 6gr-42615-00-00
  • part type: Seal

payments ouboaen:

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  • wallet: Paypal
  • credit card: Diners-club

returns ouboaen:

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

offer ouboaen:

  • quantity: 1
  • best offers: True
  • options: Ship-to-home
  • started: April 2, 2026
  • sold: 0
  • availability: In Stock

shipping ouboaen:

  • carrier: USPS
  • cost: $0.00
  • class: Standard
  • type: Fixed
  • transit: 4-9 Days
  • service: USPS Ground Advantage

general ouboaen:

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

seller ouboaen:

  • city: Milton, Florida
  • # reviews: 3547
  • rating: 99.9%
for makes: yamaha, part type: seal,
category: boat parts > outboard engines components, sku: 23045804728934752,
Yamaha 6GR-42615-00-00 Is Similar To:
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2 offers $6.73–$99.99 USD
  • New. Offer #1 priced at $99.99 + $0.00 shipping estimate = $99.99* total. I will work with you to make sure you are happy!.FREE SHIPPING
  • New. Offer #2 priced at $6.73 + $13.20 shipping estimate = $19.93* total. Cases are dealt with on an individual basis. A NEW LH CRANK OIL SEAL.+$13.20 shipping

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