MAZDA 337-60200 Throttle Body Valve

( Model: MILLENIA ), ( Part Type: Valve Throttle ), ( Genuine Oem: Yes ), ( Ipn: 337-60200 ), ( Year: 1999 ), ( Manufacturer Warranty: 90 Day )

Review MAZDA Throttle Body Valve Assembly fits MILLENIA 2500 1995–2000

The **Mazda 337-60200 Throttle Body Valve** (part number **2500**, model years **1995 2000**, specifically for the **Millenia** series) is a precision-engineered component designed to regulate airflow into the engine s intake system, ensuring optimal performance, fuel efficiency, and emissions compliance. Crafted from high-quality materials, this throttle body valve features a durable **plastic housing** reinforced with robust internal mechanisms, including a **mechanical throttle cable linkage** and a **smooth-operating throttle plate** that minimizes friction and wear over time. The valve s **electronic throttle control (ETC) system** (where applicable) integrates seamlessly with the vehicle s engine management unit (ECU), allowing for precise throttle response and adaptive learning to driver behavior, which enhances both drivability and throttle smoothness. This part is engineered to fit the **2.0L or 2.5L inline-4 engines** found in the **1995 2000 Mazda Millenia**, including models equipped with either **carbureted or fuel-injected systems**, though it is most commonly associated with the latter due to modern emissions standards. The throttle body valve is designed to withstand the demands of daily driving, including varying throttle inputs, cold starts, and high-altitude conditions, while maintaining a tight seal to prevent vacuum leaks that could degrade engine performance. For maintenance and longevity, it is recommended to clean the throttle body periodically using a specialized throttle body cleaner to remove carbon deposits and ensure the throttle plate operates freely, thereby preserving the engine s efficiency and responsiveness. Whether replacing a worn or damaged original component or upgrading for improved performance, this **OEM-quality throttle body valve** serves as a reliable, high-performance solution for Mazda enthusiasts seeking to restore or enhance their vehicle s throttle control system.

**Pros and Cons of Buying a Mazda 337-60200 Throttle Body Valve (2500-95-00 Millenia)**

The **Mazda 337-60200 throttle body valve** is a common aftermarket part for older Mazda engines, particularly those in the **2500 series (1995 2000)** and the **Millenia (1995 2000)**. Here are the key advantages of purchasing this part:

1. **Compatibility** This throttle body is designed specifically for Mazda engines, ensuring a proper fit with the **2500 (2.5L L5) and Millenia (2.5L L5)** models from the late '90s. It replaces the stock throttle body, which may wear out over time, leading to rough idling, stalling, or poor acceleration.

2. **Improved Performance** Many aftermarket throttle bodies are designed to provide better airflow, which can enhance throttle response and engine efficiency. Some versions include **electronic throttle control (ETC)**, reducing lag and improving drivability.

3. **Easier Maintenance & Replacement** The **337-60200** is a widely available part, meaning it can be sourced from multiple suppliers (eBay, Amazon, Mazda parts dealers, or specialty aftermarket stores). This reduces dependency on a single source and often lowers costs.

4. **Potential for Customization** Some throttle bodies in this series come with **adjustable settings** or **performance upgrades**, such as larger throttle plates or improved sensors, allowing for tuning flexibility.

5. **Cost-Effective Fix** Replacing a failing throttle body is often cheaper than dealing with **flooded sensors, stuck cables, or engine management issues** caused by a bad stock unit.

6. **Reduced Emissions & Better Fuel Economy** A properly functioning throttle body ensures cleaner combustion, which can slightly improve fuel efficiency and reduce emissions-related problems.

7. **Warranty & Return Options** Since this is a mass-produced aftermarket part, many sellers offer **return policies or warranties**, reducing the risk of purchasing a faulty unit.

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1. **Quality Variability** Not all aftermarket throttle bodies are created equal. Some cheaper or counterfeit versions may have **poor sealing, inconsistent airflow, or unreliable electronics**, leading to premature failure or performance issues.

2. **Installation Complexity** Replacing a throttle body requires **disconnecting wiring, removing the intake manifold, and properly sealing the new unit**. If not installed correctly, it can lead to **air leaks, rough idling, or even engine stalling**.

3. **Compatibility Issues** While the **337-60200** fits most **2.5L Mazda engines**, there are slight variations between models (e.g., **Millenia vs. 2500 vs. Proteg **). Some owners report minor fitment challenges, such as **wiring harness mismatches or sensor placement differences**.

4. **Potential for Aftermarket Incompatibility** If the vehicle has **aftermarket modifications** (e.g., turbocharging, forced induction, or ECU tuning), the stock throttle body may not be ideal. Some performance throttle bodies require **ECU reprogramming** to function correctly.

5. **Sensor & Calibration Needs** Some electronic throttle bodies (ETC) require **relearning or calibration** after installation. If not properly programmed, the vehicle may **stall, hesitate, or fail emissions tests**.

6. **Cost of Additional Components** In some cases, replacing the throttle body may require **upgrading sensors, wiring harnesses, or even the ECU** if the original system is outdated. This adds to the overall cost.

7. **Risk of Counterfeit Parts** Due to the part s popularity, there is a **high chance of encountering fakes** on platforms like eBay or AliExpress. Counterfeit throttle bodies may **fail quickly, leak, or not function as advertised**.

8. **Limited Long-Term Reliability Data** While many owners report success with this part, **long-term reliability data** (beyond 50,000 100,000 miles) is mixed. Some users experience **wear on the throttle plate or actuator motor** over time.

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The **Mazda 337-60200 throttle body valve** is a **practical and cost-effective solution** for owners of **1995 2000 2.5L Mazda engines (2500, Millenia, Proteg )** experiencing **throttle response issues, rough idling, or sensor failures**. It offers **better airflow, easier maintenance, and improved drivability** compared to a failing stock unit.

However, **quality control, installation precision, and compatibility** are critical factors that can affect performance. **Cheap or counterfeit parts** may lead to **frequent failures**, while **poor installation** can cause **air leaks or electrical issues**. If purchasing, it s best to **stick with reputable suppliers** (e.g., **Mazda OEM, ACDelco, or trusted aftermarket brands like Moroso, Holley, or SpeedPro**).

For **serious performance enthusiasts**, a **high-quality electronic throttle body (ETC)** may be worth the extra cost, but **stock or basic mechanical throttle bodies** are sufficient for **daily driving and basic reliability improvements**.

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1. **Verify Compatibility** Double-check that the **337-60200** is the correct part for your specific **Mazda model and year**. Some variations exist between **Millenia, 2500, and Proteg ** in wiring and sensor placement.

2. **Purchase from a Trusted Source**

- **OEM Mazda parts** (if available) are the most reliable but may be expensive.

- **Reputable aftermarket brands** (e.g., **Moroso, Holley, or SpeedPro**) offer good quality at a lower cost.

- **Avoid unknown sellers** on eBay or AliExpress unless they have **verified reviews and return policies**.

3. **Consider a Performance Upgrade (If Needed)**

- If you plan to **modify the engine** (turbo, supercharger, or ECU tuning), a **high-quality electronic throttle body** (e.g., **Moroso ETC or Holley E-Tech**) may be worth the investment.

- For **stock or mild modifications**, a **basic mechanical throttle body** (like the 337-60200) should suffice.

4. **Professional Installation (Recommended)**

- Throttle body replacement is **not extremely difficult**, but **poor sealing or wiring issues** can cause problems.

- If unsure, **consult a Mazda specialist or an auto electrician** to ensure proper installation and calibration.

5. **Monitor Performance After Installation**

- After replacing the throttle body, **check for rough idling, stalling, or hesitation**.

- If issues persist, **inspect for air leaks, loose connections, or sensor miscalibration**.

6. **Budget for Potential Additional Upgrades**

- Some vehicles may require **new throttle position sensors (TPS) or idle air control (IAC) valves** if they were worn out alongside the throttle body.

- If the **ECU is outdated**, a **chip tune or reprogramming** may be needed for optimal performance.

The **Mazda 337-60200 throttle body valve** is a **solid choice for fixing common throttle-related issues** in **1995 2000 2.5L Mazdas**, provided it is **purchased from a reliable source and installed correctly**. For most owners, it provides a **cost-effective improvement in drivability and reliability**. However, those seeking **maximum performance or planning further modifications** should consider **higher-end electronic throttle bodies** and ensure proper ECU calibration.

Details:

An adult must be present to inspect and sign for the delivery. Signing the delivery receipt without adding notes signifies that you've received item any visible issues or damages. Stand-alone homes only. We ll be more than happy to resolve the issue.

If you notice anything, let the delivery driver know immediately and make a note of it on receipt. No deliveries can be made to apartments, condos, town homes or similar shared living spaces. Residential delivery is not included in the free shipping. MAZDA MILLENIA 95-00 Throttle Valve Assembly; 2500.

part #: 337-60200 prices

• $85.00-$113.33

specifications throobo:

• for models: 2500, Millenia
• for makes: Mazda
• for years: 1995-2000
• model: Millenia
• part type: Valve Throttle
• genuine oem: Yes
• ipn: 337-60200
• year: 1999
• manufacturer warranty: 90 Day

general throobo:

• Car Truck Parts Accessories > Air Fuel Delivery > Throttle Bodies
• condition: Used

shipping throobo:

• service: Standard
• cost: $0.00
• class: Standard
• transit: 5-11 Days
• type: Fixed

offer throobo:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: February 27, 2026
• sold: 0

payments throobo:

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

returns throobo:

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

seller throobo:

• rating: 98.7%
• # reviews: 1654
• city: Penrose, Colorado

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