VOLKSWAGEN 400-50273 Square Automatic Transmission Converter Squarebk 69

( Model: SQUAREBK ), ( Conditions Options: Automatic Without Converter ), ( Genuine Oem: Yes ), ( Ipn: 400-50273 ), ( Descriptionpartcondition: 69 73 Volkswagen Square Back Oem Automatic Transmission No Conver ), ( Manufacturer Warranty: 90 Day ), ( Type: Automatic Transmission )

Review VOLKSWAGEN 69 Square Oem Automatic Transmission No Converter Speed fits 1971–1973

The **Volkswagen 400-50273 69 73 Square Automatic Transmission Converter** is a precision-engineered component designed specifically for select Volkswagen vehicles equipped with the 01N and 09G automatic transmission systems, commonly found in models such as the Golf, Jetta, and Passat from the late 1990s through the early 2000s. This transmission converter, also known as the torque converter, plays a critical role in the hydraulic coupling and power transfer mechanism of the automatic transmission, ensuring smooth acceleration, efficient torque multiplication, and optimal engine-to-transmission engagement. Crafted from high-quality materials, including durable cast aluminum and reinforced steel components, this converter is built to withstand the demands of daily driving, from city commutes to highway cruising, while maintaining reliability and longevity. Its square shape and precise dimensions 69mm in diameter and 73mm in height are meticulously calibrated to fit seamlessly within the transmission housing, allowing for proper fluid circulation and pressure regulation. The internal design features a robust impeller, turbine, and stator assembly, all of which work in unison to convert engine power into rotational force, enabling the transmission to shift gears without abrupt disruptions. Whether replacing a worn-out converter or upgrading for improved performance, this part is a direct-fit solution that adheres to Volkswagen s stringent engineering standards, ensuring compatibility with the 01N and 09G transmissions without the need for modifications. Ideal for mechanics and DIY enthusiasts alike, this transmission converter is a testament to Volkswagen s commitment to durability and performance, offering a reliable upgrade for vehicles that demand smooth, responsive automatic shifting.

**Analysis of Buying a Volkswagen 400-50273 (69/73 Square Automatic Transmission Converter)**

The part number **400-50273** refers to a **69/73 square automatic transmission converter** (also known as a torque converter) designed for Volkswagen vehicles, particularly those equipped with the **01M, 01N, or 01V** automatic transmissions (common in models like the Passat, Golf, and Jetta from the late 1990s to early 2000s). Below is a detailed breakdown of the pros and cons of purchasing this part, followed by a conclusion and recommendation.

---

### **Pros of buying a 400-50273 Torque Converter**

1. **Compatibility and Fitment**

- This torque converter is specifically engineered for Volkswagen s **01-series automatic transmissions**, ensuring a proper fit without modification. It is widely used in repairs for common issues like slipping, overheating, or fluid leaks in these transmissions.

- Many aftermarket and OEM suppliers stock this part, making it relatively easy to source.

2. **Performance and Durability**

- The **69/73 square pattern** (referring to the stator and impeller dimensions) is a standard design for these transmissions, offering balanced performance for everyday driving. It provides adequate torque multiplication for typical driving conditions.

- High-quality aftermarket converters (e.g., from **Gates, ACDelco, or local transmission specialists**) can match or exceed OEM durability, especially if the vehicle is used for moderate driving.

3. **Cost-Effectiveness**

- Replacing a faulty torque converter is often more affordable than rebuilding or replacing the entire transmission. Prices typically range from **$200 $500**, depending on whether it is OEM or aftermarket.

- Labor costs for installation are reasonable, as it requires draining fluid, removing the transmission, and replacing the converter standard procedures for transmission repairs.

4. **Warranty and Support**

- Reputable aftermarket brands offer warranties (e.g., 1 2 years), providing peace of mind against premature failure. OEM parts may come with a shorter warranty but are guaranteed to match the original specifications.

- Many transmission shops specialize in Volkswagen transmissions and can offer installation warranties or guarantees on their work.

5. **Ease of Installation**

- The 01-series transmissions are relatively straightforward to work on compared to modern complex units. With basic tools and mechanical knowledge, a DIY installer can replace the converter, though professional installation is recommended for optimal results.

6. **Prevents Further Transmission Damage**

- A failing torque converter can cause **slipping, jerking, overheating, or complete transmission failure** if ignored. Replacing it early can prevent costly transmission rebuilds or replacements (which can exceed **$2,000 $3,500**).

7. **Availability of Fluid and Filters**

- Volkswagen automatic transmission fluid (ATF) and filters are widely available, and using the correct fluid (e.g., **VW G 052 525 A2 or equivalent**) is crucial for the converter s longevity.

---

### **Cons of buying a 400-50273 Torque Converter**

1. **Potential for Counterfeit or Low-Quality Parts**

- The aftermarket for torque converters is saturated with **counterfeit or poorly made parts**, especially from unscrupulous sellers on platforms like eBay or Amazon. These can fail quickly, leading to repeated replacements and frustration.

- **Risk:** Buying from unknown sellers may result in a part that doesn t fit correctly, slips, or overheats.

2. **Mismatched Fluid or Contamination**

- If the transmission fluid is **old, degraded, or contaminated** (e.g., with metal particles from a worn clutch or bearings), replacing just the torque converter may not solve the underlying issue. The fluid must be **fully flushed** during installation.

- **Risk:** Neglecting fluid replacement can cause the new converter to fail prematurely.

3. **DIY Installation Challenges**

- While possible, replacing a torque converter requires **removing the transmission from the vehicle**, which is labor-intensive. Mistakes during installation (e.g., improper torque specs, misalignment) can damage the transmission or converter.

- **Risk:** Improper installation may lead to **slipping, grinding noises, or transmission failure**.

4. **Limited Longevity in Severe Conditions**

- The **69/73 square converter** is not designed for **heavy-duty towing, extreme off-roading, or high-performance applications**. In such cases, a **larger or performance-oriented converter** (e.g., 70/75 square) may be needed.

- **Risk:** Using this converter in demanding conditions can lead to **overheating, fluid breakdown, or converter failure**.

5. **Transmission-Specific Issues**

- If the **01-series transmission itself is worn** (e.g., faulty planetary gears, clutch packs, or solenoid issues), replacing just the converter may provide temporary relief but not a permanent fix.

- **Risk:** The problem may recur if the transmission is not serviced or rebuilt.

6. **Cost of Additional Repairs**

- If the torque converter fails shortly after installation, it may indicate **underlying transmission issues** (e.g., low fluid, worn bearings, or solenoid failure). This could lead to **additional repair costs** beyond just the converter.

- **Risk:** A "quick fix" may turn into a more extensive (and expensive) repair.

7. **Limited Aftermarket Support**

- Unlike newer vehicles, **finding a specialist for Volkswagen 01-series transmissions** can be difficult in some areas. This may require shipping the transmission to a repair shop, adding to costs.

- **Risk:** Delayed repairs or reliance on less experienced mechanics.

---

### **Conclusion**

The **Volkswagen 400-50273 (69/73 square) torque converter** is a **practical and cost-effective solution** for repairing slipping, overheating, or leaking issues in **01-series automatic transmissions**. It is widely compatible, durable for normal driving conditions, and easier to replace than a full transmission. However, its effectiveness depends on **proper installation, fluid replacement, and addressing any underlying transmission issues**.

The **biggest risks** stem from **purchasing a low-quality part, neglecting fluid maintenance, or attempting DIY installation without experience**. For best results, **source the part from a reputable supplier, flush the transmission fluid, and have a professional perform the installation**.

---

### **Recommendation**

- Purchase from **authorized Volkswagen dealers, transmission specialists, or trusted aftermarket brands** (e.g., **Gates, ACDelco, or local transmission shops**).

- Avoid **cheap eBay/Amazon sellers** unless they have **verified reviews and return policies**.

- **Always replace the ATF** during installation. Use **VW G 052 525 A2 or a high-quality ATF** (e.g., **Mobil ATF 3309 or Valvoline MaxLife ATF**).

- Consider a **full transmission service** (including filter and pan replacement) if the transmission is older.

- Unless you have **experience working on automatic transmissions**, **have a mechanic install it**. Improper installation can void warranties and cause further damage.

- Ask the shop to **test-drive the vehicle** after installation to ensure the converter engages smoothly.

- Watch for **slipping, overheating, or unusual noises**. If problems persist, the transmission may require further diagnosis (e.g., solenoid testing, fluid analysis).

- If the vehicle has **high mileage (over 150,000 miles)**, consider whether a **transmission rebuild or replacement** is more cost-effective in the long run.

- A **transmission fluid analysis** can help determine if the transmission is beyond just a converter replacement.

- Set aside **an additional $200 $500** for potential **fluid changes, additional parts, or labor adjustments** if issues arise.

---

- Your Volkswagen s **01-series automatic transmission is slipping or overheating** due to a failing converter.

- You **source the part from a trusted supplier** and **flush the transmission fluid**.

- You **have it professionally installed** or are confident in your DIY skills.

- You suspect **underlying transmission issues** (e.g., worn gears, solenoids).

- The vehicle is **heavily modified or used for towing/performance driving**.

- You cannot **afford proper fluid replacement or professional installation**.

For most **normal driving conditions**, this converter is a **wise and economical choice** to extend the life of your transmission. However, **prioritize quality, installation, and fluid maintenance** to ensure long-term reliability.

Details:

Orders placed after 2:00 pm CST cannot be guaranteed shipping that day. 69 73 Volkswagen Square Back OEM Automatic Transmission NO Converter 3 Speed: Some vehicles have different specs that must be matched to ensure fit. On AWD/4x4 transmissions, the transfer case will not be included.

Hospitals, Schools, Farms, storage Units, Home Business, Airports, No Truck/Limited Access zones and Military Bases are not accepted as a valid commercially zoned address. Not just our Heritage, but Legacy 69 73 Volkswagen Square Back OEM Automatic Transmission NO Converter 3 Speed. Manufacturers specified fluid types must be used. All seals, gaskets, and filters must be replaced prior to install in order maintain warranty.

Transmissions are drained prior to shipping.

specifications autotransmissionsgo:

• for makes: Volkswagen
• for years: 1971-1973
• model: Squarebk
• conditions options: Automatic Without Converter
• genuine oem: Yes
• ipn: 400-50273
• descriptionpartcondition: 69 73 Volkswagen Square Back Oem Automatic Transmission No Conver
• manufacturer warranty: 90 Day
• type: Automatic Transmission

returns autotransmissionsgo:

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

payments autotransmissionsgo:

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

shipping autotransmissionsgo:

• type: Fixed
• class: Freight
• service: Flat Rate Freight
• cost: $300.00

offer autotransmissionsgo:

• options: Ship-to-home
• availability: In Stock
• quantity: 1
• started: May 6, 2026
• sold: 0
• best offers: True

seller autotransmissionsgo:

• city: Mobile, Alabama
• rating: 99.7%
• # reviews: 63204

general autotransmissionsgo:

• Car Truck Parts Accessories > Transmission Drivetrain > Automatic Transmission
• condition: Used

Volkswagen SQUAREBK Is Similar To:

• 01m927733en Cntrl Auto Volkswagen Oem Trans Genuine (33.6% similar) ...(February 21st, 2015)
• Trans Controller Genuine 01m927733ma Oem Volkswagen (14.6% similar) ...(August 12th, 2014)
• Volkswagen 01p300056x Oem Genuine Transaxle (45% similar) Must be the original VW part and in the factory package. Image not available for this item...(May 3rd, 2015)
• VOLKSWAGEN 01V300053BX GENUINE OEM FACTORY ORIGINAL TRANSAXLE (20.4% similar) ...(May 5th, 2014)
• VOLKSWAGEN 022105266AK GENUINE OEM FACTORY ORIGINAL DRIVE PLATE (17.4% similar) ...(April 17th, 2014)
• VOLKSWAGEN 022105323E GENUINE OEM FACTORY ORIGINAL DRIVE PLATE (18.9% similar) ...(April 11th, 2014)
• Oem Genuine Volkswagen 023105323a Drive Plate (35.1% similar) Image not available for this item...(May 6th, 2015)
• 02e-300-015-n-00m Volkswagen Dsg Transmission 02e-300-015-nx-00m (36% similar) When I removed it was in good working order with no issues. Also the bevel box for 4-MOTION fluid was replaced. I will provide 5 quarts of fluid in the crate since emptied transmission. I'm selling a dag transmission out of my R32 that has 85K miles on it. Just performed a dag service with filter...(April 7th, 2017)
• 02e 300 044 K Volkswagen Vw Eos Turbo Kdb Automatic Transmission (52% similar) Warranty does not cover oil leaks from neglecting to change seals or gaskets at time of installation...(November 19th, 2018)
• 02e 300 051p 00x Volkswagen Vw Eos Speed At Dsg Transmission Kpu (45.3% similar) ...(November 8th, 2018)
• VOLKSWAGEN 02E300043QX002 GENUINE OEM FACTORY ORIGINAL TRANSAXLE (20% similar) ...(March 22nd, 2014)