1. Boat Outboard Engines To Buy
  2. sku: 23935533958431871
  3. YAMAHA 63P-13645-00-00

YAMAHA 63P-13645-00-00 Gasket Manifold YA5

fits make: Yamaha.

63p-13645-00-00 Yamaha 63p-13645-00 Gasket Manifold Oem Ya5

( Manufacturer Part Number: 63P-13645-00-00 ), ( Part Type: Gasket Manifold )

Review YAMAHA 63p-13645-00 Gasket Manifold Oem Ya5

The **Yamaha 63P-13645-00-00 (YA5) Gasket Manifold** is a precision-engineered component designed exclusively for Yamaha outboard motors, specifically tailored to the YA5 series, which includes models like the 90 HP, 115 HP, and 150 HP engines. This high-performance gasket manifold serves as a critical interface between the engine s exhaust system and the powerhead, ensuring optimal sealing, heat dissipation, and structural integrity under demanding operating conditions. Crafted from durable, high-grade materials, including reinforced rubber compounds and heat-resistant polymers, this manifold gasket is engineered to withstand the intense thermal and mechanical stresses of high-speed operation, prolonged use, and exposure to marine environments. Its unique design incorporates strategically placed sealing lips and reinforced edges to prevent leaks, vibration-induced wear, and premature failure, thereby extending the lifespan of the engine and maintaining peak performance. The manifold s precise fitment is further enhanced by Yamaha s proprietary engineering, ensuring a snug, uniform seal that minimizes exhaust gas blow-by and maximizes efficiency. Whether installed on a high-performance fishing boat, a recreational cruiser, or a performance-oriented watercraft, this gasket manifold is a testament to Yamaha s commitment to reliability and performance, delivering seamless operation and reducing the risk of costly repairs associated with exhaust system failures. For marine enthusiasts and professionals seeking a long-lasting, high-quality solution, the **63P-13645-00-00 YA5 Gasket Manifold** is an indispensable component that upholds the integrity of Yamaha s legendary outboard engineering.

### **Pros and Cons of buying a Yamaha 63P-13645-00 Gasket/Manifold (YA5 Engine)**

#### **Pros:**

1. **OEM Quality** This part is manufactured by Yamaha, ensuring compatibility with the original engine design and performance standards. It is built to the same specifications as the factory components, reducing the risk of premature failure or poor fitment.

2. **Reliability** Yamaha s aftermarket parts are known for durability, especially in their gaskets and manifolds. These components are designed to withstand the thermal and mechanical stresses of the engine, reducing the likelihood of leaks or damage over time.

3. **Easy Installation** The 63P-13645-00 is a direct replacement for the original gasket/manifold assembly in the YA5 engine (common in Yamaha outboard motors like the 9.9HP, 15HP, and 25HP models). It comes pre-assembled in some cases, simplifying the replacement process compared to sourcing individual gaskets and manifolds separately.

4. **Cost-Effective Long-Term Solution** While the upfront cost may be higher than generic aftermarket parts, the reliability and longevity of Yamaha s components can save money in the long run by avoiding repeated replacements or engine damage from inferior parts.

5. **Warranty Coverage** Purchasing directly from Yamaha or an authorized dealer may include a warranty, providing peace of mind in case of defects. Third-party sellers may offer limited or no warranty, so this is a significant advantage.

6. **Performance Consistency** Since it matches the factory specifications, the gasket and manifold will not negatively impact engine performance, fuel efficiency, or emissions. This is particularly important for older engines where even slight deviations can cause issues.

7. **Availability of Installation Support** Yamaha offers technical support and installation guides for their parts, which can be helpful if you re unfamiliar with engine repairs. Some dealers also provide installation services.

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#### **Cons:**

1. **Higher Upfront Cost** Compared to generic or third-party gasket/manifold kits, Yamaha s OEM parts are more expensive. This can be a barrier for budget-conscious buyers, especially if the part is not strictly necessary (e.g., if the engine is heavily modified or in poor condition).

2. **Potential Overkill for Non-OEM Engines** If the engine has been heavily modified (e.g., with aftermarket components, forced induction, or custom tuning), a stock Yamaha gasket/manifold may not be ideal. In such cases, a specialized or upgraded part might be more suitable, but it may not be available from Yamaha.

3. **Limited Customization** Unlike aftermarket parts, Yamaha s components do not offer performance upgrades (e.g., improved airflow, material enhancements, or heat resistance). If you re looking to enhance engine performance, you may need to explore third-party options.

4. **Lead Times for Replacement Parts** Depending on the region and availability, Yamaha parts may have longer lead times compared to generic suppliers. This could delay repairs if you re in a hurry.

5. **Mixed Quality of Third-Party Sellers** While the part itself is high-quality, purchasing from unauthorized sellers (e.g., eBay, Amazon, or unscrupulous online marketplaces) risks receiving counterfeit or substandard copies. Always verify the seller s authenticity to avoid this issue.

6. **Potential for Over-Engineering** For lightly used or older engines, a Yamaha gasket/manifold may be more robust than necessary. In some cases, a simpler or less expensive solution (e.g., a single gasket replacement) might suffice, but the manifold is often sold as a complete assembly.

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### **Conclusion:**

The **Yamaha 63P-13645-00 gasket/manifold (YA5 engine)** is a **high-quality, reliable, and trustworthy** replacement part for stock Yamaha outboard motors. It is ideal for:

- **Original equipment replacement** (OEM fitment).

- **Owners who prioritize durability and warranty coverage**.

- **Those who want to avoid compatibility issues** with generic parts.

- **Engines that are not heavily modified**.

However, it may **not be the best choice** if:

- You re on a tight budget and can find a suitable generic alternative.

- Your engine is heavily modified or requires performance upgrades.

- You need the part urgently and cannot wait for shipping.

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### **Recommendation:**

- **Buy from Yamaha or an authorized dealer** to ensure authenticity and warranty coverage. Avoid third-party sellers unless you ve verified their reputation.

- **Compare prices** with reputable aftermarket suppliers (e.g., Sea-Doo, Mercury, or specialized marine parts stores) to see if a comparable generic part offers a better value.

- **Check engine condition** before purchasing. If the engine is old or heavily worn, consider whether a full overhaul or upgrade is needed beyond just the gasket/manifold.

- **Install professionally** if you re unsure. A poorly installed gasket or manifold can lead to leaks, damage, or reduced performance.

**Final Verdict:** If you need a **direct, reliable, and long-lasting** replacement for your Yamaha YA5 engine, the **63P-13645-00 is the safest choice**. However, weigh the cost against alternatives if budget is a concern.

Details:

Shipped with USPS Ground Advantage. Yamaha 63P-13645-00 Gasket Manifold OEM YA5. Condition is New.

part #: 63p136450000 prices

  • $21.35-$28.97

specifications ouboaen:

  • for makes: Yamaha
  • mpn: 63p-13645-00-00
  • part type: Gasket Manifold

offer ouboaen:

  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • started: May 14, 2026
  • quantity: 4

shipping ouboaen:

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

general ouboaen:

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

returns ouboaen:

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

seller ouboaen:

  • # reviews: 8742
  • city: Spokane, Washington
  • rating: 99.5%

payments ouboaen:

  • other
  • credit card: Mastercard
  • wallet: Google-pay
for makes: yamaha, part type: gasket manifold,
category: boat parts > outboard engines components, sku: 23935533958431871,
Yamaha 63P-13645-00-00 Is Similar To:
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5 offers $21.35–$28.97 USD
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