HONDA 337-59223 Throttle Body Valve 32401376

( Part Type: Valve Throttle ), ( Conditions Options: Gry, Throttle Valve Assembly, Sdn, At ), ( Genuine Oem: Yes ), ( Ipn: 337-59223 ), ( Descriptionpartcondition: This Part Is Currently Installed On A Vehicle And Will Be Removed ), ( Manufacturer Warranty: 6 Month )

Review HONDA Throttle Body Valve Assembly Sedan fits CIVIC 1990–1991

The **Honda 337-59223 Throttle Body Valve** is a precision-engineered component designed specifically for the **1990-1991 Honda Civic (2.0L 4-cylinder, 32401376 engine)**, ensuring optimal airflow and throttle response for reliable performance. This high-quality valve is crafted from durable materials to withstand the demands of daily driving, providing smooth operation and consistent throttle control. The throttle body valve plays a critical role in regulating the engine s air intake, directly impacting fuel efficiency, acceleration, and overall engine health. Whether you're restoring a classic Civic or maintaining a well-loved classic, this genuine or high-quality aftermarket replacement ensures a perfect fit, eliminating common issues like rough idling, stalling, or sluggish throttle response. Built to meet Honda s exact specifications, it integrates seamlessly with the engine s intake system, offering a tight seal and minimal air leakage for peak performance. Ideal for both DIY enthusiasts and professional mechanics, this valve is a straightforward yet essential upgrade for anyone seeking to restore or enhance their Civic s drivability. With its reliable construction and compatibility with the 32401376 engine, it s a must-have part for anyone looking to keep their vehicle running at its best.

**Pros and Cons of buying a Honda 337-59223 Throttle Body Valve (90-91 Civic 32401376)**

### **Pros**

1. **Direct Fit and Compatibility** This part is specifically designed for 1990-1991 Honda Civics with the 32401376 engine code, ensuring a seamless installation without modification. It eliminates the need for adapters or aftermarket conversions, reducing the risk of leaks or improper sealing.

2. **Reliability and Quality** Honda parts are known for durability and consistent performance. The throttle body valve is a critical component in fuel delivery and engine response, and a genuine or high-quality aftermarket replacement ensures proper function, preventing issues like stalling, rough idling, or hesitation.

3. **Prevents Engine Damage** A failing throttle body valve can lead to fuel starvation, carbon buildup, or improper air-fuel mixture, which may damage the catalytic converter, oxygen sensors, or even the engine over time. Replacing it proactively avoids costly repairs down the line.

4. **Improves Drivability** If the original valve is clogged or malfunctioning, replacing it can restore smooth acceleration, better throttle response, and overall engine efficiency. This is particularly noticeable in vehicles that have been neglected or driven in dusty or humid conditions.

5. **Cost-Effective Long-Term Solution** While the upfront cost may seem higher than some generic alternatives, a reliable throttle body valve extends the life of related components (e.g., MAF sensor, intake system) and avoids repeated failures. It also maintains the vehicle s resale value better than a car with known mechanical issues.

6. **Easy Installation** The throttle body is typically accessible without major disassembly. Many mechanics or DIYers can replace it in under an hour, especially if the car has already been worked on (e.g., intake manifold removed for other repairs). Honda s design simplifies the process compared to some competitors.

7. **Warranty Coverage (if Genuine)** Purchasing from Honda or an authorized dealer may include a warranty, providing peace of mind in case of premature failure. Some reputable aftermarket suppliers also offer warranties, though these vary by brand.

8. **Environmental and Emissions Benefits** A properly functioning throttle body ensures the engine runs within specified emissions limits. A failing valve can trigger check engine lights (e.g., P0120, P0121, P0122 codes) and lead to failed emissions tests, which can be costly to rectify.

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### **Cons**

1. **Higher Upfront Cost** Compared to generic or aftermarket throttle body valves, the genuine Honda part (or even some high-quality OEM-equivalent brands) can be more expensive. Prices may range from $50 to $150 depending on the source (e.g., eBay, RockAuto, local parts stores). Budget-conscious buyers may opt for cheaper alternatives, but this carries risks.

2. **Potential for Counterfeit Parts** Buying online (especially from unverified sellers) increases the risk of receiving a counterfeit or low-quality replica. These parts may fail prematurely, cause leaks, or not fit correctly, leading to further damage or the need for replacement sooner than expected. Always verify the seller s reputation and part authenticity.

3. **Additional Labor Costs** If the car is not already stripped down, replacing the throttle body may require removing the intake manifold, air filter housing, or other components. Labor costs can add $50 $150 depending on the shop s rates, making the total repair more expensive than anticipated.

4. **Compatibility Concerns with Modifications** If the Civic has aftermarket modifications (e.g., turbocharging, supercharging, or performance intakes), the stock throttle body may not be suitable. In such cases, a performance throttle body (e.g., from Walbro, Edelbrock, or AEM) may be necessary, which could be more expensive and require additional tuning.

5. **Carbon Buildup in the Intake** Even with a new throttle body, carbon deposits can accumulate on the intake valves or throttle plate over time, especially in high-mileage vehicles. This may require additional cleaning (e.g., with carb cleaner or a professional intake service) to restore optimal performance.

6. **Limited Availability of Genuine Parts** Genuine Honda parts may be harder to find in physical stores, forcing buyers to rely on online marketplaces. Shipping times can vary, and some sellers may not offer returns if the part is damaged or incorrect upon arrival.

7. **Potential for Overkill** If the throttle body valve is only partially worn or the issue is minor (e.g., a sticky cable rather than a failing valve), replacing the entire throttle body may be unnecessary. Diagnosing the exact problem (e.g., checking for vacuum leaks, testing the throttle position sensor) ensures the right fix is applied.

8. **Environmental Impact of Disposal** If the old throttle body is not disposed of properly, it may contribute to electronic waste. Buyers should check local regulations or recycling programs for proper disposal of automotive parts.

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### **Conclusion**

The Honda 337-59223 throttle body valve (or its equivalent) is a **critical maintenance item** for 1990 1991 Civics with the 32401376 engine. While it comes with a higher upfront cost and some logistical challenges, the benefits such as improved drivability, prevention of engine damage, and long-term reliability far outweigh the drawbacks for most owners. The key to a successful purchase lies in **verifying the part s authenticity**, ensuring compatibility with the vehicle s condition, and choosing a reputable seller or dealer.

For buyers on a tight budget, **high-quality aftermarket alternatives** (e.g., from brands like Denso, Delphi, or Walbro) can offer similar performance at a lower cost, provided they meet OEM specifications. However, these should be cross-referenced with the vehicle s specifications to avoid mismatches.

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### **Recommendation**

1. **Verify the Part Number** Confirm that the throttle body valve (337-59223 or equivalent) matches your Civic s engine code (32401376). Cross-check with the vehicle s service manual or a trusted mechanic to avoid purchasing the wrong part.

2. **Purchase from a Trusted Source**

- **Genuine Honda parts**: Available at Honda dealerships or authorized online retailers (e.g., RockAuto, Amazon, eBay with verified sellers).

- **Aftermarket alternatives**: Brands like **Denso (45300-PS0-001)**, **Delphi (32401376)**, or **Walbro (100-1000)** are reliable and often more affordable. Avoid no-name brands unless thoroughly researched.

- **Avoid counterfeits**: Look for parts with clear packaging, manufacturer logos, and seller reviews. Check for discrepancies in part numbers or packaging that may indicate fakes.

3. **Inspect the Intake System** While replacing the throttle body, clean the intake manifold, throttle body plate, and surrounding areas to remove carbon buildup. Use a throttle body cleaner (e.g., CRC or Gunk) and a soft brush to ensure smooth operation.

4. **Consider Professional Installation** If you lack mechanical experience, have a mechanic install the part. This ensures proper sealing, wiring (if applicable), and avoids common mistakes like over-tightening bolts or misaligning components.

- Smooth idle and acceleration.

- No check engine lights (use an OBD-II scanner to clear codes if present).

- Proper throttle response (no hesitation or stalling).

- Clean the throttle body every 30,000 50,000 miles or if the vehicle is driven in dusty/humid conditions.

- Replace the air filter regularly to prevent debris from entering the intake.

- Avoid prolonged idling, which can cause carbon buildup.

7. **Budget for Potential Additional Work** If the throttle body replacement reveals other issues (e.g., a failing MAF sensor, vacuum leaks, or a sticky throttle cable), address them simultaneously to avoid recurring problems.

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### **Final Verdict**

- Your Civic exhibits symptoms of a failing valve (e.g., rough idle, stalling, poor acceleration).

- You prioritize long-term reliability and engine health over short-term cost savings.

- You can source a genuine or high-quality aftermarket part from a trusted seller.

- The symptoms are minor (e.g., slight hesitation) and could be caused by other issues (e.g., dirty air filter, vacuum leak).

- You cannot confirm the part s authenticity or compatibility.

- The vehicle has significant carbon buildup that would require additional cleaning before the new part functions optimally.

For most 1990 1991 Civic owners, **replacing the throttle body valve is a worthwhile investment** that restores performance and prevents more costly repairs. Pair it with proper maintenance, and the part should serve reliably for the vehicle s remaining lifespan.

Details:

Engine oil pans must be re-sealed. Inspect and replace seals gaskets as needed. No Labor or any other charges related to the sale installation of this product are warranted. Transfer Case.

No Hardware, Accessories. Torque converter must be properly seated and aligned to the front pump. Cooling lines must be flushed of debris before installing. CIVIC 90-91 Throttle Valve Assembly; Sdn, AT.

If heat tabs are melted or removed, warranty void. Small Parcel Shipping UPS/FedEx: Free shipping on all small parcel orders. Fill with fluid according to manufacturers recommended type and level. Purchaser must replace seals, gaskets, and filter before installation re-seal the oil pan.

Must be installed and inspected by a factory trained certified technician. Brakes, seals, sensors, and lines should be inspected replaced as needed. Warranty does not include shift motor, switches, sensors, or seals. We remove oil pans to inspect automatic transmissions.

Each item comes with a 6-month, part-only warranty for your peace of mind. Radiators must be flow tested or replaced receipts required. Inspect and replace as needed. B R Automotive does not guarantee mileage.

Contact B R immediately prior to removing or repairing any components. Check with the dealer as components may be different. Confirm proper gear ratio prior to installation. Residential delivery is not included in the free shipping or our regional charges.

Timing belts, thermostat, water pump and other maintenance items must be replaced.

part #: 337-59223 prices

• $110.70-$200.00

specifications throobo:

• for models: Civic
• for makes: Honda
• for years: 1990-1991
• part type: Valve Throttle
• conditions options: Gry, Throttle Valve Assembly, Sdn, At
• genuine oem: Yes
• ipn: 337-59223
• descriptionpartcondition: This Part Is Currently Installed On A Vehicle And Will Be Removed
• manufacturer warranty: 6 Month

offer throobo:

• quantity: 1
• best offers: True
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: April 22, 2026

payments throobo:

• credit card: Diners-club
• other
• wallet: Apple-pay

shipping throobo:

• class: Standard
• service: Standard
• type: Fixed
• transit: 3-9 Days
• cost: $10.00

general throobo:

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

seller throobo:

• city: Oroville, California
• # reviews: 71201
• rating: 98.6%

returns throobo:

• time: 60 Days
• policy: Returns Accepted
• paid by: Buyer

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