HONDA 19311-MBW-305 Thermostat Housing

( Manufacturer Part Number: 19311-MBW-305 ), ( Country Of Origin: Japan ), ( Retail Price: 39.75 ), ( Type: Thermostat Housing )

Review HONDA Oem Thermostat Housing fits CBR600F4 CBR600 F4 CBR 1999–2000

The **Honda 19311-MBW-305** is a precision-engineered thermostat housing specifically designed for the **1999 2000 model year Honda CBR600F4 and CBR600 (F4) sportbikes**, ensuring optimal thermal management and performance under demanding riding conditions. Crafted from high-quality **cast aluminum**, this housing is engineered to withstand the intense heat generated by the bike s advanced liquid-cooling system, providing reliable temperature regulation for the engine s critical components. The thermostat housing plays a pivotal role in maintaining the ideal operating temperature, preventing overheating while optimizing fuel efficiency and power delivery key factors for the CBR600F4 s sport-tuned performance. Its robust construction features a **threaded mounting interface** that securely integrates with the engine s cooling system, ensuring a leak-proof seal and minimal thermal transfer loss. The design incorporates a **precision-machined gasket surface**, which, when paired with the original OEM gasket, guarantees a tight, durable fit that resists warping or degradation over time. Whether you re pursuing high-speed track sessions or long-distance cruising, this thermostat housing is built to endure the stresses of aggressive riding, delivering consistent performance and longevity. For riders seeking to restore or upgrade their CBR600F4 s cooling system, this genuine Honda part is an essential component that upholds the bike s factory specifications, ensuring reliability and peak mechanical efficiency.

### Pros and Cons of Buying a Honda 19311-MBW-305 (1999-2000 CBR600F4/CBR600 Thermostat Housing)

1. **Reliability and Durability** Honda is renowned for building long-lasting engines, and the CBR600F4 s thermostat housing is part of a proven system. The materials and engineering ensure consistent performance over time, reducing the risk of premature failure.

2. **Easy to Find and Replace** This part is a standard OEM (Original Equipment Manufacturer) component, meaning it is widely available from Honda dealerships, aftermarket suppliers, and online retailers. It is also a common part for mechanics, making installation straightforward.

3. **Cost-Effective Replacement** Compared to labor-intensive repairs or engine overhauls, replacing just the thermostat housing is relatively inexpensive. The part itself is affordable, and installation typically requires minimal time and tools.

4. **Prevents Cooling System Issues** A faulty thermostat housing can lead to overheating, coolant leaks, or poor engine cooling. Replacing it ensures the cooling system functions correctly, protecting the engine from long-term damage.

5. **Compatibility with Modifications** If you plan to modify your CBR600F4 (e.g., upgrading the cooling system or tuning the engine), this part is essential for maintaining proper thermal management.

6. **Minimal Downtime** Replacing the thermostat housing is a relatively quick job, often taking less than an hour for a DIYer with basic mechanical skills. This reduces the time your bike spends out of commission.

7. **Prevents Secondary Damage** Ignoring a failing thermostat housing can lead to more severe issues, such as warped cylinder heads, seized pistons, or coolant system leaks. Addressing it early avoids costly repairs down the line.

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1. **Potential for Counterfeit Parts** Some aftermarket or third-party sellers may offer fake or low-quality replicas. While rare, purchasing from untrusted sources could result in a part that fails prematurely or doesn t fit correctly.

2. **Installation Challenges for Beginners** While the replacement is straightforward, it requires removing the engine cover, draining coolant, and ensuring proper sealing. A novice mechanic might struggle with gasket installation or torque specifications, leading to leaks.

3. **Coolant System Flush Recommended** After replacing the thermostat housing, it s good practice to flush the entire cooling system to remove old coolant and debris. This adds a small amount of extra work but is necessary for optimal performance.

4. **Limited Lifespan of Related Components** If the thermostat housing fails due to age or wear, other parts of the cooling system (e.g., hoses, radiator, or water pump) may also be nearing the end of their lifespan. This could require additional maintenance in the near future.

5. **OEM vs. Aftermarket Trade-Off** While OEM parts guarantee compatibility, aftermarket alternatives may be slightly cheaper but could lack the same build quality. However, reputable aftermarket brands (e.g., Akebono, Denso) offer reliable options.

6. **Potential for Overheating if Ignored** If the issue causing the thermostat housing failure (e.g., coolant leaks, clogged radiator) isn t addressed, the problem may recur. A thorough inspection of the cooling system is advisable.

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The **Honda 19311-MBW-305 thermostat housing** is a practical and cost-effective part to replace for maintaining your CBR600F4 s cooling system. Its reliability, widespread availability, and ease of installation make it a smart choice for both DIYers and professionals. However, ensuring you purchase a genuine or high-quality part and addressing any underlying cooling system issues will maximize its effectiveness.

- **Purchase from a trusted source**, such as a Honda dealership, reputable aftermarket supplier (e.g., RockAuto, Speedhawk), or a mechanic you trust. Avoid unknown sellers offering significantly discounted parts.

- **Follow proper installation procedures**, including using the correct gasket, torque specifications, and coolant flush.

- **Inspect the rest of the cooling system** (hoses, radiator, water pump) while the bike is apart to catch any other potential issues.

- **Consider upgrading related components** (e.g., high-quality coolant, radiator hoses) if your bike has high mileage or sees heavy use.

- **If unsure about installation**, consult a mechanic to avoid mistakes that could lead to leaks or improper cooling.

**Final Verdict:** This is a worthwhile replacement part for any CBR600F4 owner experiencing cooling-related symptoms. Prioritize quality and proper maintenance to ensure long-term reliability.

Details:

Rpm.Cycle Parts. Removed From: 2000 Honda CBR600F4 with 8800 miles, Please review all pictures to assess the condition of item. 99-00 HONDA CBR600F4 CBR600 CBR F4 OEM THERMOSTAT HOUSING 19311-MBW-305, This thermostat housing is in very good condition and shows normal signs of wear.

part #: 19311mbw305 prices

• $23.99-$45.00

specifications speedometercycleiz:

• for models: Cbr600f4, Cbr600, F4, Cbr
• for makes: Honda
• for years: 1999-2000
• mpn: 19311-mbw-305
• country of origin: Japan
• retail price: 39.75
• type: Thermostat Housing

shipping speedometercycleiz:

• service: Economy
• cost: $14.00
• type: Fixed
• transit: 4-10 Days
• class: Economy

payments speedometercycleiz:

• wallet: Paypal
• other
• credit card: Mastercard

returns speedometercycleiz:

• policy: Returns Accepted
• time: 14 Days
• paid by: Buyer

offer speedometercycleiz:

• availability: In Stock
• quantity: 1
• sold: 0
• started: April 17, 2026
• options: Ship-to-home

seller speedometercycleiz:

• city: Ogdensburg, New York
• rating: 92.7%
• # reviews: 8427

general speedometercycleiz:

• Motorcycle Scooter Parts Accessories > Instruments Gauges > Individual Gauges
• condition: Used

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