AUDI 3397021921 Windshield Wiper Transmission Linkage Motor

( Manufacturer Part Number: 3397021921 ), ( Type: Wiper Linkage ), ( Material: Steel ), ( Placement On Vehicle: Front ), ( Country Of Origin: Germany )

Review AUDI Windshield Wiper Transmission Linkage Motor Oem fits A4 S4 B9 2017–2024

The **Audi 3397021921 Windshield Wiper Transmission Linkage Motor** is a precision-engineered component designed exclusively for the **2017 2024 Audi A4 and S4 (B9 platform)**, ensuring seamless operation of the wiper system while maintaining the vehicle s sleek, high-performance aesthetic. This high-quality replacement part is meticulously crafted to meet Audi s stringent engineering standards, delivering reliable performance under varying weather conditions, from light drizzle to heavy snowfall. The linkage motor integrates a robust transmission mechanism, featuring a durable gear system and a smooth-operating linkage rod that minimizes wear and tear, reducing the risk of premature failure. Engineered with corrosion-resistant materials, this component is built to withstand the elements, preventing rust and ensuring longevity even in harsh climates. The design incorporates Audi s signature precision engineering, allowing for effortless adjustment of wiper speed and pattern, whether in intermittent, low, or high-speed modes. Whether replacing a worn-out original part or upgrading an aftermarket installation, this motor guarantees a perfect fit with the vehicle s existing wiper arm assembly, ensuring optimal functionality and a factory-like appearance. Ideal for both professional mechanics and DIY enthusiasts, this component is a direct-fit solution that restores the wiper system to peak performance, enhancing visibility and safety on the road.

### Pros and Cons of buying a Audi 3397021921 (2017-2024 A4/S4 B9 Wiper Transmission Linkage Motor)

#### **Overview**

The **Audi 3397021921** is a **wiper transmission linkage motor** designed for the **Audi A4 (B9) and S4 (B9) models**, produced between **2017 and 2024**. This part is critical for the proper functioning of the windshield wipers, ensuring smooth operation, variable speed control, and rain sensing capabilities. Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **OEM Quality and Reliability**

- As an **original equipment manufacturer (OEM) part**, it meets Audi s strict engineering standards, ensuring durability and compatibility with the vehicle s electrical and mechanical systems.

- Audi s B9 platform (2016 ) incorporates advanced wiper technology, including **adaptive rain sensing** and **precise linkage mechanisms**, which this motor supports effectively.

2. **Compatibility and Fitment**

- Specifically designed for the **A4 (B9) and S4 (B9)**, reducing the risk of misalignment or improper function compared to aftermarket alternatives.

- Works seamlessly with the **Audi MMI infotainment system** and **adaptive cruise control (ACC) integration**, if equipped, as these systems rely on accurate wiper feedback.

3. **Performance and Functionality**

- Supports **variable-speed wiper operation**, including intermittent and high-speed modes, which enhances visibility in different weather conditions.

- The **linkage mechanism** ensures smooth, jerk-free movement, reducing wear on the wiper blades and motor over time.

- Compatible with **rain-sensing wipers**, a feature common in newer Audi models, which automatically adjusts wiper speed based on sensor input.

4. **Longevity and Durability**

- Audi s B9 models are built with **higher-quality materials** compared to earlier generations, which may contribute to longer-lasting performance of the wiper motor.

- The motor is designed to withstand **regular use without excessive strain**, reducing the likelihood of premature failure.

5. **Warranty and Support**

- Purchasing from an **authorized Audi dealer or reputable supplier** may include a **limited warranty**, providing peace of mind against defects.

- Audi s **dealer network** offers technical support and diagnostics, ensuring proper installation and troubleshooting if issues arise.

6. **Aesthetic and Brand Consistency**

- Maintaining OEM parts preserves the **vehicle s resale value** and ensures a consistent look and feel, as aftermarket parts may not match the original design.

---

### **Cons**

1. **Cost**

- OEM parts are **significantly more expensive** than aftermarket alternatives. The **Audi 3397021921** can cost **$150 $300 or more**, depending on the supplier and region.

- Labor costs for installation may also be higher if done at an Audi dealership, increasing the total repair expense.

2. **Limited Availability**

- Unlike generic aftermarket parts, OEM wiper motors may be **harder to find**, especially if the vehicle is no longer in production or parts are discontinued.

- Some suppliers may experience **stock shortages**, leading to delays in ordering.

3. **Potential for Overkill**

- If the wiper motor fails due to **external factors** (e.g., debris, electrical issues, or blade wear), replacing it with an OEM part may be **more than necessary** if the root cause isn t addressed (e.g., corroded connections, damaged linkage).

- In some cases, **aftermarket motors** (from brands like **Dorman, Bosch, or Valeo**) offer comparable performance at a lower cost.

4. **Installation Complexity**

- Replacing the wiper motor requires **disassembling the windshield and trim**, which can be time-consuming and may void warranties if not done by a professional.

- Improper installation can lead to **misalignment, electrical issues, or premature wear** of the new motor.

5. **Depreciation and Resale Value**

- While OEM parts maintain the vehicle s integrity, they do not **directly impact resale value** the market value is more influenced by mileage, maintenance history, and overall condition.

- For older models (e.g., 2017 2019), aftermarket parts may be sufficient unless the owner prioritizes **long-term reliability and brand consistency**.

6. **Electrical Compatibility Risks**

- If the vehicle has **modified wiring or aftermarket electronics**, there is a slight risk of **electrical incompatibility**, though this is rare with OEM parts.

- Always ensure the **vehicle s electrical system is in good condition** before installation to avoid issues.

---

### **Conclusion**

The **Audi 3397021921 wiper transmission linkage motor** is a **high-quality, reliable OEM component** that ensures **optimal performance, compatibility, and longevity** for the **A4/S4 B9**. It is the **best choice for owners who prioritize brand consistency, warranty coverage, and long-term durability**, especially if the vehicle is still under warranty or has significant equity.

However, for **budget-conscious buyers or those with minor wiper issues**, **aftermarket alternatives** (from trusted brands) may offer **similar functionality at a lower cost**. The decision ultimately depends on:

- **Budget** (OEM vs. aftermarket trade-off).

- **Vehicle condition** (if other components, like wiring or linkages, are worn).

- **Long-term goals** (preserving resale value vs. cost savings).

---

### **Recommendation**

- **Purchase the OEM Audi 3397021921** from an **authorized Audi dealer or a reputable online supplier** (e.g., **AudiParts2000, RockAuto, or local dealership parts departments**).

- **Have it installed by a certified Audi technician** to ensure proper alignment and electrical connection.

- **Check for warranty coverage** (some suppliers offer limited warranties).

- **Bosch (0 945 456 001)** A well-regarded brand with good reviews.

- **Dorman (65300)** Often a reliable and affordable option.

- **Valeo (550 001)** Another trusted name in automotive parts.

- **Verify compatibility** with your specific model year (some aftermarket parts may require slight modifications).

- **Inspect the linkage mechanism and wiring** before replacement to ensure the issue isn t elsewhere.

- **Gather the necessary tools** (trim removal tools, wrench set, electrical tester).

- **Follow Audi s service manual** carefully to avoid damaging the windshield or electrical system.

- **Test the motor before final installation** to confirm it functions correctly.

- **Recheck electrical connections** (corrosion, loose wires).

- **Inspect the wiper linkage and arm** for wear or misalignment.

- **Consult an Audi specialist** if the problem continues, as it may indicate a deeper electrical or mechanical issue.

---

For **most Audi A4/S4 B9 owners**, the **OEM 3397021921 motor is the best long-term solution** due to its reliability and compatibility. However, if the vehicle is older or the issue is isolated to the motor, **a high-quality aftermarket part** can be a **cost-effective alternative**. Always prioritize **proper installation and diagnostics** to avoid recurring problems.

Details:

Made of steel and manufactured in Germany, this wiper linkage includes the necessary components such as bracket front motor for easy installation. Compatible with various Audi model's from 2017 to 2024, this high-quality wiper system hardware assembly is a reliable and authentic part for maintaining the functionality of your Audi's windshield. The product is a genuine OEM windshield wiper transmission linkage with motor designed specifically for the 2017 2024 Audi A4 S4 B9 model's.

part #: 3397021921 prices

• $58.95-$100.00

specifications winshielwip:

• for models: A4, S4, B9
• for makes: Audi
• for years: 2017-2024
• mpn: 3397021921
• type: Wiper Linkage
• material: Steel
• placement on vehicle: Front
• country of origin: Germany

offer winshielwip:

• quantity: 1
• sold: 0
• best offers: True
• options: Ship-to-home
• started: April 23, 2026
• availability: In Stock

payments winshielwip:

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

general winshielwip:

• Exterior Parts Accessories > Wipers Washers > Wiper Linkages, Transmissions Motors
• condition: Used

returns winshielwip:

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

shipping winshielwip:

• transit: 5-11 Days
• type: Fixed
• cost: $0.00
• class: Standard
• carrier: USPS
• service: USPS Ground Advantage

seller winshielwip:

• # reviews: 526
• city: Jacksonville, Florida
• rating: 99.6%

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