YAMAHA 14T-21751-00-00 Riva Oil Tank Cap CA-50

( Manufacturer Part Number: 14T-21751-00-00 ), ( Part Type: Oil Tank Cap )

Review YAMAHA Riva Ca 50 Oil Tank Cap fits 1984

The **Yamaha 14T-21751-00-00 oil tank cap** from the 1984 Riva CA50L is a meticulously crafted, vintage automotive component designed to ensure the proper sealing and functionality of the engine s lubrication system. This brass-colored, chrome-finished cap is engineered to fit seamlessly onto the oil tank of Yamaha s iconic outboard motor, providing both an airtight barrier and a secure connection to prevent leaks or contamination. Crafted from durable materials, the cap features a robust, threaded design that ensures a tight seal when properly installed, safeguarding the engine s oil from external debris, moisture, and dust. The cap s sleek, rounded shape not only enhances the aesthetic appeal of the Riva CA50L s engine compartment but also aligns with the classic, streamlined look of Yamaha s marine engines from the early 1980s. Ideal for restoration projects or maintenance work, this genuine OEM part guarantees a perfect fit, maintaining the original performance and reliability of the Yamaha 14T outboard. Whether used for routine oil changes or as part of a full engine rebuild, this cap is a testament to Yamaha s precision engineering, ensuring long-lasting functionality and peace of mind for boat owners who appreciate both form and function.

### **Pros and Cons of buying a Yamaha 14T-21751-00-00 (1984 Riva CA50L 50 Oil Tank Cap)**

1. **Original Equipment (OEM) Fitment** This part is designed specifically for the 1984 Riva CA50L, ensuring a perfect fit without modifications. Aftermarket parts may not align as precisely, potentially leading to leaks or improper sealing.

2. **Reliability and Durability** Yamaha parts are known for their quality and longevity, especially in marine applications where exposure to saltwater, UV rays, and mechanical stress is common. A genuine cap reduces the risk of premature wear or failure.

3. **Sealing Integrity** The oil tank cap plays a critical role in maintaining proper pressure and preventing contamination. A high-quality cap ensures a tight seal, reducing the risk of oil leaks or moisture ingress, which can degrade engine performance over time.

4. **Compatibility with Maintenance Routines** If you plan to perform regular oil changes or inspections, having the correct cap ensures you can do so safely and efficiently without improvising with non-matching parts.

5. **Resale Value Preservation** Keeping the original or high-quality aftermarket parts can help maintain the boat s resale value, as buyers often prefer well-maintained vessels with genuine components.

6. **Ease of Installation** Since it s designed for your specific model, replacing it is straightforward, requiring minimal tools and expertise.

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1. **Cost** Genuine Yamaha parts can be more expensive than aftermarket alternatives. Depending on availability, this part may not be the cheapest option, especially if sourced from a dealer rather than a third-party seller.

2. **Limited Availability** Older Yamaha parts, particularly those for discontinued models like the 1984 Riva CA50L, may be harder to find. You might need to order from a specialty marine parts distributor or a salvage yard, which could delay repairs.

3. **Potential for Counterfeit Parts** If purchasing from an unverified seller (e.g., online marketplaces), there s a risk of receiving a counterfeit or low-quality replica. Always verify the seller s reputation and part authenticity.

4. **Overkill for Minor Use** If the boat is used infrequently or in freshwater only, the premium of a genuine Yamaha cap may not be justified. In such cases, a compatible aftermarket part could suffice without compromising performance.

5. **No Significant Performance Upgrade** This is a functional replacement part, not an upgrade. Unless the original cap was faulty, there s no performance benefit to upgrading to a newer model or brand.

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The **Yamaha 14T-21751-00-00 oil tank cap** is a **high-quality, reliable choice** for your 1984 Riva CA50L, especially if you prioritize fitment, durability, and long-term reliability. While it may come at a higher cost than aftermarket alternatives, the benefits such as a guaranteed seal, ease of installation, and preservation of the boat s condition often outweigh the drawbacks for serious boat owners.

If budget is a concern, you could explore **high-quality aftermarket alternatives** (e.g., from brands like **Seafoam, Star Tron, or marine-specific suppliers**) that are compatible with your model. However, if you value **original equipment quality** and want to avoid potential compatibility issues, the Yamaha part is the **recommended choice**.

- You want a **guaranteed fit** and **long-term reliability**.

- You re willing to pay a premium for **OEM quality**.

- The boat is used frequently or in **salty or harsh conditions**.

- You re on a tight budget and can verify the part s compatibility.

- The boat is used sporadically or in **freshwater only**.

- You can find a reputable seller offering a **high-quality, tested replacement**.

Always **inspect the part upon arrival** and ensure it matches the original in terms of material, threading, and sealing mechanism. If possible, compare it to the old cap before installation.

Details:

The product is a genuine Yamaha oil tank and cap for 1984 Riva CA50L scooter. The manufacturer part number is 14T-21751-00- ensuring compatibility and quality. This part is essential for the proper functioning of scooter, providing a convenient storage solution oil needed lubrication and maintenance.

part #: 14t217510000 prices

• $13.45-$29.85

specifications cyclevintagee:

• for makes: Yamaha
• for years: 1984
• mpn: 14t-21751-00-00
• part type: Oil Tank Cap

offer cyclevintagee:

• best offers: True
• quantity: 1
• started: May 29, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0

seller cyclevintagee:

• # reviews: 0
• city: Lebanon, Oregon
• rating: 0.0%

shipping cyclevintagee:

• transit: 5-12 Days
• class: Standard
• type: Calculated
• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage

returns cyclevintagee:

• policy: No Returns

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

payments cyclevintagee:

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

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