1. Throttle Body For Sale
  2. sku: 11639225513590813
  3. MAZDA 337-59191

MAZDA 337-59191 Throttle Body Valve Dohc 929

fits make: Mazda. year: 1990–1991.

337-59191 Mazda Throttle Body Valve Assembly Dohc Fits 90-91 929 399089

( Part Type: Valve Throttle ), ( Genuine Oem: Yes ), ( Ipn: 337-59191 )

Review MAZDA Throttle Body Valve Assembly Dohc 929 fits 1990–1991

The **Mazda 337-59191 Throttle Body Valve (DOHC, 90-91, 929)** is a precision-engineered component designed specifically for Mazda s high-performance 2.0L and 2.3L inline-four engines, particularly those found in the **1990-1991 Mazda 929 and related DOHC models**. This throttle body valve plays a critical role in regulating airflow into the engine s intake manifold, ensuring optimal throttle response, fuel efficiency, and overall drivability. Crafted from high-quality materials, including durable metal and corrosion-resistant coatings, this valve is built to withstand the demands of high-performance applications while maintaining smooth operation under varying engine loads. The **337-59191** is a direct-fit replacement, designed to seamlessly integrate with the engine s intake system, eliminating common issues such as vacuum leaks, rough idling, or sluggish acceleration that often plague worn or failing throttle body valves. Whether used for routine maintenance, performance tuning, or restoration projects, this valve ensures reliable performance and helps restore the engine s factory-intended responsiveness. Ideal for mechanics, DIY enthusiasts, and classic car restorers, the **337-59191** is a straightforward yet essential upgrade for maintaining the integrity and efficiency of Mazda s legendary DOHC engines from the early '90s.

### **Pros and Cons of Buying a Mazda 337-59191 Throttle Body Valve (DOHC, 90-91, 929 Engine)**

#### **Pros:**

1. **Common and Well-Documented Part** The Mazda 337-59191 throttle body valve is a widely available aftermarket and OEM part, meaning you won t have trouble finding replacements. Many online marketplaces, auto parts stores, and Mazda specialists stock it.

2. **Easy to Install** The throttle body is a straightforward component, and installation typically requires only basic tools (screwdrivers, socket wrench, and possibly a throttle body cleaner). No major disassembly of the engine is needed unless there are additional issues.

3. **Cost-Effective Fix** Replacing a faulty throttle body valve is usually cheaper than overhauling the entire throttle body or dealing with engine management problems caused by a failing valve. Prices range from $20 $80 depending on whether you buy new or used.

4. **Prevents Engine Misfires & Rough Idling** A bad throttle body valve can cause stalling, hesitation, or rough idle. Replacing it often restores smooth operation and prevents further damage to the engine s computer or sensors.

5. **Compatible with Common Mazda Models** This part fits several Mazda engines from the early '90s, including the 929 (2.6L DOHC), making it a versatile purchase if you have multiple projects or need spares.

6. **Aftermarket Support** Many aftermarket brands (e.g., ACDelco, Bosch, or Mazda-specific suppliers) produce compatible replacements, often with better quality than original parts.

7. **Minimal Long-Term Issues** Unlike some engine components, throttle body valves don t wear out frequently unless the car is driven aggressively or neglected. A clean throttle body and proper maintenance extend its lifespan.

---

#### **Cons:**

1. **Potential for Counterfeit Parts** Since this is an older part, there s a risk of purchasing knockoffs that don t fit properly or fail quickly. Buying from reputable sellers (e.g., RockAuto, eBay verified, or local Mazda specialists) reduces this risk.

2. **Accompanying Issues May Exist** A failing throttle body valve might indicate other problems, such as:

- **Dirty or clogged throttle body** (requires cleaning).

- **Faulty throttle position sensor (TPS)** (may need replacement or recalibration).

- **Vacuum leaks** (check hoses and gaskets).

- **Engine management system glitches** (may require a scan tool reset).

You might need to diagnose these separately after installation.

3. **Throttle Body Cleaning Often Solves the Problem** Before replacing the valve, some mechanics recommend cleaning the throttle body with carb cleaner. If the issue is just carbon buildup, a replacement valve may not be necessary, wasting money.

4. **OBD-II Codes May Persist** If the throttle body valve is stuck or failing, it can trigger codes like **P0120 (TPS circuit)** or **P0121 (TPS range/performance)**. Even after replacement, you may need to clear codes and recalibrate the TPS.

5. **Physical Damage Risk** If the throttle body is cracked or warped, replacing just the valve won t fix the underlying issue. You may need a full throttle body replacement ($150 $300).

6. **Skill Level Required** While simple, improper installation (e.g., not seating the valve properly or not reconnecting wiring) can lead to leaks or electrical issues. Beginners may struggle with wiring or sensor adjustments.

7. **Age of the Car** If the Mazda 929 is already high-mileage or has other mechanical issues (e.g., timing chain, head gaskets), replacing just the throttle body valve is a band-aid solution. A full engine rebuild or replacement may be more cost-effective in the long run.

---

### **Conclusion:**

Replacing a **Mazda 337-59191 throttle body valve** is a **practical and cost-effective fix** for common symptoms like rough idling, stalling, or check engine lights related to the throttle system. It s a **low-risk, high-reward** project for most DIYers with basic mechanical skills. However, it s not a **complete solution** you should also inspect and clean the throttle body, check for vacuum leaks, and ensure the TPS is functioning correctly.

If the car is otherwise in good condition, this repair is **worthwhile**. If the vehicle has multiple failing components or is approaching the end of its lifespan, prioritize more critical repairs first.

---

### **Recommendation:**

1. **Diagnose First** Before buying the part, confirm the issue with a **scan tool** (to check for TPS or throttle-related codes) and a **visual inspection** (look for carbon buildup, damage, or loose connections).

2. **Clean the Throttle Body** Use **carb cleaner** to spray inside the throttle body and wipe away deposits. This often resolves minor issues without needing a valve replacement.

3. **Buy from a Trusted Source** Purchase the **337-59191 valve** from a reputable seller (e.g., RockAuto, Amazon, or a local Mazda specialist) to avoid counterfeit parts.

4. **Follow Installation Steps Carefully**

- Disconnect the battery.

- Remove the air intake hose and electrical connectors.

- Unscrew the throttle body (may require a torque wrench to avoid stripping).

- Replace the valve, ensuring it seats properly.

- Reconnect wiring and reconnect the intake hose.

- Clear any existing codes and test-drive the car.

5. **Monitor After Installation** If symptoms persist, check for **vacuum leaks, TPS issues, or fuel system problems**.

6. **Consider a Full Throttle Body Replacement** If the throttle body is damaged or heavily carboned, a new throttle body ($150 $300) may be a better long-term solution.

**Final Verdict:** If the issue is confirmed to be the throttle body valve and the car is otherwise reliable, **proceed with the replacement**. If you re unsure, consult a Mazda specialist to avoid unnecessary expenses. For high-mileage or neglected cars, weigh the cost against other potential repairs.

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. No deliveries can be made to apartments, condos, town homes or similar shared living spaces.

If you notice anything, let the delivery driver know immediately and make a note of it on receipt. We ll be more than happy to resolve the issue. Residential delivery is not included in the free shipping.

part #: 337-59191 price

  • $75.00

specifications throobo:

  • for makes: Mazda
  • for years: 1990-1991
  • part type: Valve Throttle
  • genuine oem: Yes
  • ipn: 337-59191

seller throobo:

  • rating: 98.8%
  • # reviews: 1800
  • city: Penrose, Colorado

shipping throobo:

  • transit: 4-9 Days
  • type: Fixed
  • service: Standard
  • cost: $0.00
  • class: Standard

general throobo:

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

payments throobo:

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

returns throobo:

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

offer throobo:

  • started: April 2, 2026
  • availability: In Stock
  • options: Ship-to-home
  • sold: 0
  • quantity: 1
for makes: mazda, for years: 1990-1991, part type: valve throttle, genuine oem: yes,
manufacturer: mazda, category: auto parts > car truck parts accessories > air fuel delivery > throttle bodies, sku: 11639225513590813,
Mazda 399089 Is Similar To:
throobo logo
1 offer $75.00 USD
  • Used. Offer #1 priced at $75.00 + $0.00 shipping estimate = $75.00* total. We ll be more than happy to resolve the issue.FREE SHIPPING

Copyright © throobo.com