SUZUKI 17670-33400 Radiator Temperature Thermostat Switch 705464585567

( Manufacturer Part Number: 17670-33400 ), ( Part Type: Switch Radiator Thermostat ), ( UPC: 705464585567 )

Review SUZUKI Oem Radiator Temperature Thermostat Switch fits Z400 LTZ 400

The **Suzuki 17670-33400 LTZ 400 Z400 Radiator Temperature Thermostat Switch** is a precision-engineered component designed to regulate the cooling system performance of Suzuki s iconic Z400 and LTZ 400 models, ensuring optimal engine temperature and longevity. This high-quality thermostat switch operates as a critical heat management device, controlling the flow of coolant between the engine and radiator to maintain a stable operating temperature typically between 195 F and 212 F while preventing overheating or excessive fuel consumption. Crafted from durable materials, including a robust metal housing and a temperature-sensitive wax pellet mechanism, it guarantees reliable and consistent operation under varying driving conditions, from city commutes to high-speed highway cruising. The switch features a sealed, non-corrosive design to resist moisture, debris, and thermal stress, making it ideal for both stock and modified Suzuki engines where precise temperature control is essential. Whether installed in a classic Z400 or a restored LTZ 400, this thermostat switch ensures smooth power delivery, extended engine life, and improved overall performance by preventing thermal fluctuations that could lead to premature wear or catastrophic failure. Its direct-fit compatibility and OEM-level quality make it a trusted replacement for original equipment, offering the same dependability as the factory unit while adhering to Suzuki s engineering standards.

**Pros and Cons of buying a Suzuki 17670-33400 LTZ 400 Z400 Radiator Temperature Thermostat Switch**

1. **Direct Fitment** This part is specifically designed for Suzuki models like the LTZ 400 and Z400, ensuring compatibility without modification. This reduces the risk of installation issues and ensures proper function.

2. **Reliability** Suzuki vehicles are known for durability, and genuine or high-quality aftermarket parts like this thermostat switch are built to match the original equipment manufacturer (OEM) standards. This minimizes the chance of premature failure.

3. **Prevents Engine Overheating** A faulty thermostat switch can lead to overheating, which can cause severe engine damage. Replacing it ensures proper temperature regulation, protecting the engine and cooling system.

4. **Easy Installation** Since it s a direct replacement, the installation process is straightforward, often requiring only basic tools. This makes it a cost-effective DIY project for those comfortable with mechanical work.

5. **Long-Term Cost Savings** Addressing a failing thermostat switch early prevents more expensive repairs down the line, such as coolant leaks, radiator damage, or even engine failure.

6. **Improved Performance** A properly functioning thermostat switch ensures the engine reaches optimal operating temperature quickly, improving fuel efficiency and overall performance.

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1. **Cost** While not excessively expensive, the part itself and labor (if hiring a professional) can add up, especially if other related components (like hoses or coolant) need replacement during installation.

2. **Potential for Counterfeit Parts** If purchasing from an untrusted seller, there s a risk of receiving a low-quality or counterfeit part that fails prematurely. Always buy from reputable suppliers or dealerships.

3. **Diagnostic Challenges** If the thermostat switch is failing intermittently, diagnosing the exact issue can be tricky. Symptoms like overheating or poor temperature control might also stem from other problems (e.g., a faulty water pump, radiator, or cooling fan).

4. **Time-Consuming Replacement** For those unfamiliar with engine work, draining the coolant system and replacing the thermostat switch can be time-consuming, especially if the vehicle is older and has stiff components.

5. **Compatibility Risks** While this part is designed for the LTZ 400 and Z400, slight variations in later model years or different Suzuki engines (e.g., GSX-R, V-Strom) might require verification to avoid mismatches.

6. **Coolant System Flush Recommended** After replacing the thermostat switch, some mechanics recommend flushing the entire cooling system to remove old coolant and debris, adding to the cost and effort.

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The Suzuki 17670-33400 LTZ 400 Z400 radiator temperature thermostat switch is a critical component that, when replaced proactively, prevents costly engine damage and ensures reliable performance. The benefits of improved temperature regulation, direct fitment, and long-term savings outweigh the minor drawbacks of cost and installation effort. However, it s essential to source the part from a trusted supplier and consider professional installation if unsure about the process.

For most Suzuki owners experiencing overheating issues or a failing thermostat switch, this is a **highly recommended replacement** to maintain engine health and avoid breakdowns. If budget is a concern, prioritize purchasing from a reputable dealer to avoid counterfeit parts, and consider learning the installation process yourself to save on labor costs.

**Final Recommendation:** Buy the genuine or high-quality aftermarket thermostat switch, replace it promptly if symptoms (e.g., overheating, erratic temperature gauge readings) appear, and follow proper installation and coolant maintenance procedures. This will extend the life of your Suzuki engine and avoid more expensive repairs.

Details:

In 2008, Cycles R Us started CRU Products. Photos of new parts may not always be the actual product. Combined shipping is available for multiple items. OEM radiator thermostat.

Fits: Suzuki LTZ 400 2003 - 2008.

part #: 1767033400 prices

• $13.01-$47.99

specifications electricacompone:

• for models: Z400, Ltz, 400
• for makes: Suzuki
• mpn: 17670-33400
• part type: Switch Radiator Thermostat
• upc: 705464585567

payments electricacompone:

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

general electricacompone:

• ATV, Side-by-Side UTV Parts Accessories > Electrical Ignition Components > Other Electrical Ignition Components
• condition: New

seller electricacompone:

• rating: 99.9%
• city: Chippewa Lake, Ohio
• # reviews: 117647

returns electricacompone:

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

shipping electricacompone:

• carrier: USPS
• service: USPS First Class
• transit: 4-7 Days
• cost: $0.00
• class: Standard
• type: Fixed

offer electricacompone:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: May 30, 2026
• quantity: 3

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