BMW 1730362.9 Throttle Body Tb 3/5 2.0 M50B20 520I

( Manufacturer Part Number: 1730362.9 ), ( Color: Silver ), ( Material: Aluminum ), ( Vintage Part: No ), ( Fuel Type: Petrol ), ( Type: Throttle Body ), ( Manufacturer Warranty: 1 Month ), ( Classic Part: Yes ), ( Features: Electronic ), ( Country Of Origin: United Kingdom )

Review BMW Throttle Body Tb 3/5 Series 2.0 fits E34 E36 320I 1992–1998

The **BMW 1730362.9 Throttle Body** is a precision-engineered component designed exclusively for the iconic **M50B20** inline-6 engine found in BMW s **E34 520i** and **E36 320i** models, spanning the production years from **1992 to 1998**. This throttle body is a direct replacement for the original **Bosch L-Jetronic** or **Motronic ME7.1/ME7.2** fuel injection systems, ensuring seamless integration with the engine s electronic management while maintaining optimal throttle response and airflow efficiency. Crafted from high-quality materials, the **1730362.9** features a durable **aluminum housing** with precision-machined internal components, including a **pneumatic actuator** and **throttle plate assembly**, which work in tandem with the engine s ECU to regulate fuel delivery and throttle position with exceptional accuracy. The unit is equipped with a **clean, modernized design** that eliminates common issues associated with aging throttle bodies, such as sticking plates, inconsistent idle, or vacuum leaks, which were often encountered in later-model E34/E36 vehicles. This aftermarket part is engineered to meet or exceed OEM specifications, ensuring compatibility with stock wiring harnesses and ECU calibration, making it an ideal choice for both restoration projects and performance upgrades. Whether restoring a classic BMW to its original glory or enhancing the drivability of a well-loved E34 or E36, the **1730362.9 Throttle Body** delivers a reliable, high-performance solution that preserves the engine s integrity while improving throttle response and overall engine efficiency.

### **Pros and Cons of Buying a BMW Throttle Body (Part Number 1730362.9) for E34/E36 2.0L M50B20 (92-98 520i/320i)**

#### **Pros**

1. **Direct Fitment** This throttle body is specifically designed for the E34 and E36 2.0L M50B20 engines, ensuring proper installation without modifications.

2. **Improved Throttle Response** A new throttle body can eliminate sticking or sluggishness, leading to smoother acceleration and better engine performance.

3. **Prevents Carbon Buildup** Over time, throttle bodies can accumulate carbon deposits, restricting airflow. Replacing it ensures a clean surface for optimal airflow.

4. **Compatibility with Upgrades** If you plan to add a cold air intake, turbocharger, or other performance modifications, a fresh throttle body is essential for proper function.

5. **Prevents Engine Misfires** A failing throttle body can cause intermittent misfires or rough idle, which this replacement resolves.

6. **OEM Quality** As a genuine BMW part, it maintains the same build quality as the original, reducing the risk of premature failure.

7. **Easier Maintenance** Unlike aftermarket alternatives, this part is straightforward to install, requiring only basic tools and minimal disassembly.

#### **Cons**

1. **Cost** Genuine BMW parts can be expensive, especially when purchased directly from BMW or authorized dealers. Prices may vary depending on the seller.

2. **Installation Complexity** While not overly difficult, removing the old throttle body requires disconnecting the throttle cable, wiring harness, and vacuum lines, which may take time for inexperienced DIYers.

3. **Potential for Counterfeit Parts** If buying from third-party sellers (e.g., eBay, Amazon, or untrusted online marketplaces), there is a risk of receiving a fake or low-quality part.

4. **Additional Wear Items** If the throttle body was removed due to other issues (e.g., failing throttle position sensor, vacuum leaks), those components may need replacement as well, adding to costs.

5. **Limited Longevity with Poor Maintenance** Even a new throttle body can clog again if the engine is run with poor fuel quality, carbon buildup, or lack of regular maintenance (e.g., valve cleaning).

6. **Wiring Concerns** Some older E34/E36 models may have worn or corroded wiring harnesses near the throttle body. If not addressed, this could cause future electrical issues.

---

### **Conclusion**

Replacing the throttle body (1730362.9) in your E34/E36 2.0L M50B20 is a **highly recommended maintenance or performance upgrade** if you experience sticking, poor throttle response, or carbon fouling. The benefits such as improved drivability, better fuel efficiency, and prevention of engine issues far outweigh the drawbacks, provided you source the part from a reputable seller and perform the installation correctly.

However, if your budget is tight, consider **aftermarket alternatives** (e.g., Mann, Bosch, or Walbro throttle bodies) that offer similar performance at a lower cost. Always ensure compatibility and read reviews before purchasing.

- You prioritize OEM quality and long-term reliability.

- You plan to keep the car in good running condition for years.

- You have access to a trusted supplier (e.g., BMW dealership, reputable online retailers like RockAuto, or eBay with verified feedback).

- You are on a budget and can verify the part s quality (e.g., Mann 1730362.9 equivalent).

- You are comfortable with minor modifications (e.g., wiring adjustments) if needed.

- A throttle position sensor (if not already included).

- A thorough inspection of the wiring harness and vacuum lines.

- Regular maintenance (e.g., valve cleaning, fuel system maintenance) to prevent future carbon buildup.

If installed properly, this upgrade will **significantly improve throttle response, fuel economy, and overall engine performance**, making it a worthwhile investment for your M50B20.

Details:

This throttle body is designed for petrol fuel type vehicles and compatible with model's such as the 320I 520I. BMW is the brand associated with this high-quality car part. The product is a throttle body specific to BMW 3 and 5 series model's from 1992 -1998, including the 2.0 M50B20 engine. It is a classic part manufactured in the United Kingdom, with numbers 1730362 and 1730362.9.

part #: 17303629 prices

• $24.95-$123.71

specifications throobo:

• for models: E34, E36, 320i
• for makes: Bmw
• for years: 1992-1998
• mpn: 1730362.9
• color: Silver
• material: Aluminum
• vintage part: No
• fuel type: Petrol
• type: Throttle Body
• manufacturer warranty: 1 Month
• classic part: Yes
• features: Electronic
• country of origin: United Kingdom

seller throobo:

• # reviews: 12
• rating: 87.5%
• city: Portland, Oregon

general throobo:

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

offer throobo:

• started: March 13, 2026
• availability: In Stock
• best offers: True
• options: Ship-to-home
• quantity: 1
• sold: 0

returns throobo:

• policy: No Returns

payments throobo:

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

shipping throobo:

• type: Calculated
• cost: $9.81
• service: USPS Ground Advantage
• class: Standard
• carrier: USPS
• transit: 5-12 Days

Bmw 1730362.9 Is Similar To:

• 007623101 Hella New Bmw Throttle Body (29.1% similar) The price is as it states on. Standard shipping is sent via FedEx smart post which a 5-9 day economy service. 95 and is only available to the USA. Discounted shipping and combined is available on our web site. More detailed information is available in the compatibility's section above. Fitment ...(February 11th, 2017)
• 01-06 Bmw E46 M3 Throttle Body (34.5% similar) Is in working condition before pulled out. Please see detail picture. Parted out from a bmw E46 m3 2003 oem part see picture actual item on. These are used parts...(December 24th, 2016)
• 1 354 783 8300 Factory Bmw Throttle Actuator Pull Rod Individual Body Oem (24.8% similar) Fits bmw m3 these rods link the throttle body to individual set. Available is a throttle body actuator pull rod removed from an 2011 bmw M3. The rods are in great condition and ready for installation...(August 9th, 2018)
• 1 730 908 Bosch Bmw Eml Electronic Throttle Body (28.1% similar) Emil drive by wire. Bmw 735I 535I throttle body. 5 bmw throttle...(August 26th, 2018)
• 1 745 207.1 Bosch Bmw Eml Electronic Throttle Body Pair (29.6% similar) Bmw part number fast, free USPS priority shipping. Sale is for the pair both units which came from same engine. Guaranteed not to be DOA. Used electronic throttle bodies Emil for a bmw 750IL or 850I...(September 13th, 2018)
• 1270711 Bmw Throttle Body (32.4% similar) 5l M30 throttle body fully functional. Note: multiple options were available during these model years. All parts are tested on the car, then go through secondary bench testing whenever possible. All parts are tested prior to listing. Taken from a running 1987 bmw 635CSI. Mounting points are intact...(July 23rd, 2018)
• 1285330 Bosch Bmw Oem Throttle Housing Assembly Us Model (29.4% similar) What you see is get bmw E12 throttle body assembly off running car comes with both taps and some new hardware installed...(May 6th, 2018)
• 13 54 7 502 445 Vdo Bmw E36.7 E46 Throttle (26.2% similar) E46 330XI z3 7 E46 throttle housing assembly oem part fits: brand new with full 1 year warranty. Bmw part made by VD, oem 330I E46 330CI con. 0i save z4 z3 coupe on APR at 04:35:56 PDT. May get any for car want...(February 12th, 2017)
• 13-54-7-556-118-04 1354755611804 Bmw Throttle Body (26.2% similar) English, Spanish, Italian or Portuguese only. Extra fees may apply. Engines and transmission. All markings should be intact and no signs of physical damage such as hits, drops, water damage, or any tempering. Items must come in original packing to ensure their protection. Shipping free to most of ...(October 31st, 2017)
• 13 63 1 436 000 Bmw Throttle Position Switch Asc 019962727573 (35.5% similar) May get any for car want. Year model sub model body type chassis engine 318I qty: 318IS 318TI z3 brand new part with full 1 year warranty. Bmw part made by. If you are not sure about the part fitting your car, please e-mail us cars vin...(March 25th, 2018)
• 132 06009 076 Wd Express Fuel Injection Throttle Body Fits Bmw 884109826095 (37.4% similar) Always read item specifics and use compatibility guide. Some pictures show different angles of the same item. Central valley wholesale goods which has the largest selection of Victorians Swiss army knives and parts import car for European Asian cars. Every listing is for a quantity of 1, unless it ...(August 21st, 2018)