HARLEY-DAVIDSON 26700002-26700002A Thermostat Housing XG500

( Brand: Harley-davidson ), ( Manufacturer Part Number: 26700002;26700002A ), ( Type: Thermostat W Housing )

Review HARLEY DAVIDSON 26700002 Oem Thermostat Housing Assembly fits STREET 500 2015

The **Harley-Davidson 26700002 / 26700002A 2015 Street 500 XG500 Thermostat Housing** is a precision-engineered component designed to maintain optimal engine temperature for Harley-Davidson s compact yet powerful XG500 motorcycle, ensuring reliable performance and longevity. This thermostat housing is a critical part of the cooling system, housing the thermostat a valve that regulates coolant flow between the engine block and radiator to prevent overheating while promoting efficient heat dissipation. Crafted from high-quality cast aluminum, the housing is engineered to withstand the thermal stresses of high-performance riding, offering durability and resistance to warping or corrosion. Its sleek, integrated design seamlessly integrates with the engine s cooling system, featuring precise mounting points and a secure gasket interface to prevent leaks and ensure a tight seal. The thermostat housing is compatible exclusively with the 2015 model year of the Harley-Davidson Street 500 XG500, making it a direct replacement for the original equipment part, which may degrade over time due to exposure to heat, vibration, or wear. This component is essential for maintaining the engine s operating temperature within the ideal range, preventing premature wear on internal components such as pistons, bearings, and seals. Whether used for routine maintenance, performance upgrades, or as a replacement for a failed part, this thermostat housing ensures that the XG500 s liquid-cooled engine operates at peak efficiency, delivering the smooth, responsive power that Harley-Davidson riders expect. For optimal results, it is recommended to use the correct coolant and follow Harley-Davidson s service guidelines to ensure proper installation and longevity.

### **Pros and Cons of Buying a 2015 Harley-Davidson Street 500 XG500 with a Thermostat Housing Issue (Part Numbers 26700002 and 26700002A)**

#### **Pros**

1. **Affordability** The Street 500 is one of Harley-Davidson s most budget-friendly models, making it accessible for new riders or those looking for a smaller, more manageable bike without the premium price of a full-size Harley.

2. **Lightweight and Maneuverable** At around **430 lbs (195 kg)**, it is significantly lighter than traditional Harley-Davidsons, making it easier to handle in traffic, park, and transport. This is ideal for urban commuting or riders with limited storage space.

3. **Fuel Efficiency** The 500cc parallel-twin engine delivers **good fuel economy** (around **50-60 mpg**), which is far better than larger displacement Harleys (often under 40 mpg). This reduces running costs over time.

4. **Easy to Maintain** The smaller engine means **lower maintenance costs** compared to V-twin or V-rod models. Basic upkeep (oil changes, spark plugs, etc.) is simpler and less expensive.

5. **Good for Beginners** The Street 500 is a great **starter bike** for those new to motorcycles, offering a manageable size, lightweight feel, and a forgiving riding experience.

6. **Harley Brand Recognition** Owning a Harley, even a smaller model, carries prestige and recognition. The brand has a strong following, which can be appealing for personal satisfaction or resale value.

7. **Customization Potential** The bike s smaller size allows for **easier modifications**, from aftermarket exhausts to handlebars, making it a good platform for personalization without the complexity of larger bikes.

8. **Decent Performance for the Class** The **500cc engine** provides **enough power (around 40-50 hp)** for highway cruising and city riding, though it lacks the raw torque of larger Harleys. It s sufficient for most riders but may feel underpowered for aggressive riding.

9. **Comfortable Ergonomics** The **upright riding position** is less fatiguing than the forward-leaning posture of sportbikes, making it suitable for longer rides without strain.

10. **Resale Value** While not as high as premium Harley models, the Street 500 retains **better resale value than many Japanese alternatives** due to brand loyalty.

---

#### **Cons**

1. **Thermostat Housing Issue (Part Numbers 26700002, 26700002A)**

- **Potential Cooling Problems**: The thermostat housing is a critical component for engine temperature regulation. A faulty or leaking thermostat housing can lead to **overheating, poor performance, or even engine damage** if not addressed.

- **Cost of Repair**: Replacing the thermostat housing is **not extremely expensive** (typically **$100-$200 for parts**, plus labor), but if the issue stems from a **coolant leak or internal failure**, additional damage (e.g., warped head gasket, overheated cylinder) could increase costs significantly.

- **Reliability Concerns**: If the bike has a history of **coolant leaks or overheating**, this could indicate a **design or manufacturing flaw** in the thermostat housing, which may recur if not properly fixed.

- **Warranty Status**: If the bike is **not under warranty**, you ll bear the full cost. If it is, check if the issue is covered (some Harley warranties exclude wear-and-tear items like thermostat housings).

2. **Limited Power and Torque**

- The **500cc engine is underpowered** compared to larger Harleys (e.g., Sportster 1200, Softail 114). It struggles with **heavy loads, long climbs, or aggressive acceleration**, making it feel **less capable** than competitors like the **Kawasaki Ninja 500 or Honda Rebel 500**.

- **Torque delivery is weak**, meaning you may need to **rev higher** for adequate power, which can be tiring on long rides.

3. **Ride Quality and Comfort**

- The **single shock rear suspension** is **less refined** than dual-shock setups, leading to a **firmer, less comfortable ride** on rough roads.

- The **narrow seat** may not suit taller riders comfortably, and the **upright position** can cause back fatigue on long rides compared to more ergonomic bikes.

4. **Engine Reliability Concerns**

- While generally reliable, the **500cc parallel-twin engine** has **less displacement than Harley s traditional V-twins**, meaning it may **wear out faster** with high mileage.

- Some owners report **oil consumption issues** or **carbon buildup** in the combustion chamber, which can reduce longevity if not maintained properly.

5. **Braking Performance**

- The **single-disc front brake** (on most models) is **less powerful** than dual-disc setups found on sportbikes or larger Harleys. Stopping power is **adequate but not exceptional**, especially in wet conditions.

6. **Resale Depreciation**

- Like most small-displacement Harleys, the **Street 500 depreciates quickly**. After a few years, its value drops significantly, making it a **less attractive long-term investment** compared to bikes with better retention (e.g., Honda CBR, Yamaha MT-07).

7. **Limited Aftermarket Support**

- While customization is possible, the **Street 500 has a smaller aftermarket** compared to Japanese bikes or even Harley s Sportster line. Finding **exhausts, handlebars, or suspension upgrades** may be harder and more expensive.

8. **Fuel and Emissions**

- The bike **does not meet Euro 5 or California emissions standards**, which could **limit its usability in certain regions** if stricter regulations are enforced.

9. **Noise and Vibration**

- The **parallel-twin engine is louder and vibrates more** than smoother V-twin setups, which can be **fatiguing on long rides**.

10. **Market Competition**

- There are **better alternatives** in the same price range (e.g., **Honda Rebel 500, Yamaha MT-07, Kawasaki Ninja 500, Royal Enfield Meteor 350**) that offer **more power, better ergonomics, and modern technology** for a similar cost.

---

### **Conclusion**

- You **prioritize affordability, brand loyalty, and a lightweight cruiser** over raw performance.

- You **address the thermostat housing problem immediately** (either replace it yourself or have a mechanic fix it) to avoid long-term engine damage.

- You **plan to keep the bike for a few years** and don t mind its **limited power and resale value**.

- You **enjoy the Harley experience** and don t need extreme performance.

- You **need a reliable, high-performance bike** for daily use or long-distance riding, the Street 500 may **fall short**.

- You **cannot afford or do not want to deal with potential cooling system issues**, this bike may not be worth the risk.

- You **prefer modern features, better ergonomics, or stronger aftermarket support**, a **Japanese or European alternative** (e.g., Honda Rebel, Yamaha MT-07, Royal Enfield) would be a **better choice**.

---

### **Recommendation**

- **Get the thermostat housing inspected and replaced immediately** before taking the bike on long rides.

- **Check for other potential issues** (coolant leaks, head gasket integrity, oil consumption) to ensure the engine is in good health.

- **Budget for maintenance** this bike requires **regular upkeep** to avoid costly repairs.

- **Consider buying from a reputable dealer or private seller with full service records** to minimize surprises.

- **Honda Rebel 500 / 1100** More reliable, better power, and stronger resale value.

- **Yamaha MT-07** Smoother engine, better handling, and modern tech.

- **Royal Enfield Meteor 350 / 650** Great value, comfortable, and fuel-efficient.

- **Kawasaki Ninja 500 / 650** More performance-focused, better brakes, and aftermarket support.

- Consider a **used Sportster 1200 or Softail 114** they offer **more power, better reliability, and a more premium Harley experience** for a slightly higher price.

The **2015 Street 500 XG

Details:

Please review all pictures to assess the condition of item.

part #: 2670000226700002a prices

• $63.65-$94.95

specifications speedometercycleiz:

• for models: 500, Street
• for makes: Harley
• for years: 2015
• brand: Harley-davidson
• mpn: 26700002;26700002a
• type: Thermostat W Housing

seller speedometercycleiz:

• city: Whitney, Texas
• # reviews: 11519
• rating: 99.8%

payments speedometercycleiz:

• wallet: Paypal
• other
• credit card: Visa

general speedometercycleiz:

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

shipping speedometercycleiz:

• class: Standard
• type: Fixed
• service: Standard
• transit: 3-8 Days
• cost: $0.00

offer speedometercycleiz:

• availability: In Stock
• started: March 25, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

returns speedometercycleiz:

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

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