AJUSA 69BNNSG29 Rear Crankshaft Seal

( Brand: Ajusa ), ( Manufacturer Part Number: 69BNNSG29 ), ( Type: Crankshaft Seal ), ( Placement On Vehicle: Rear ), ( Fits 1: 1998-2005 Volkswagen Passat ), ( Fit Note: Engine Crankshaft Seal ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review AJUSA Rear Crankshaft Seal fits PASSAT 1998–2004

The **AJUSA 69BNN-SG29 Rear Crankshaft Seal** is a premium, high-performance replacement part meticulously engineered to restore optimal sealing integrity and longevity to the rear main oil seal assembly of Volkswagen Passat models produced between **1998 and 2004**, including the 3.8L V6 engines (e.g., 1.8T, 2.8L, and 3.8L variants). Crafted from **high-quality synthetic rubber and reinforced with durable fiberglass braiding**, this seal is designed to withstand the intense pressures, high temperatures, and constant mechanical stress inherent in modern automotive drivetrains. Its **precision-molded design** ensures a perfect fit against the crankshaft and housing, minimizing oil leaks while maintaining smooth operation critical for preventing costly engine damage from oil contamination or premature wear. The **self-lubricating properties** of the seal s material reduce friction, extending both the seal s lifespan and the engine s overall efficiency, while its **resistance to oil degradation and environmental exposure** guarantees reliable performance even in demanding conditions. Whether addressing a slow oil leak, preparing for a major overhaul, or upgrading an existing seal to prevent future issues, the AJUSA 69BNN-SG29 delivers the durability and precision required to keep your Passat s drivetrain running seamlessly for thousands of miles. Backed by AJUSA s reputation for automotive excellence, this seal is a trusted choice for mechanics and enthusiasts seeking a balance of performance, reliability, and ease of installation.

### Pros and Cons of buying a Ajusta 69BNN-SG29 Rear Crankshaft Seal for a 1998 2004 Volkswagen Passat

1. **Compatibility** The Ajusta seal is specifically designed for the rear crankshaft (flexplate) of 1.8T and 2.8L V6 engines in the 1998 2004 Passat models, ensuring a proper fit without modification.

2. **Durability** Ajusta is a well-regarded brand known for high-quality seals that resist oil leakage and deformation over time, especially when properly installed.

3. **Ease of Installation** The seal is designed to fit standard tools and procedures, making it accessible for both DIYers and mechanics with basic experience.

4. **Cost-Effective** Compared to OEM or aftermarket alternatives, the Ajusta seal is often priced competitively while maintaining reliability.

5. **Prevents Further Damage** A failing rear crankshaft seal can lead to oil leaks into the transmission or flywheel area, causing internal damage. Replacing it early can avoid costly repairs.

6. **Warranty Coverage** Some retailers or dealers offer warranties on Ajusta seals, providing peace of mind against premature failure.

1. **Potential for Misalignment** If not installed correctly, the seal can be damaged or improperly seated, leading to leaks or premature wear.

2. **Requires Disassembly** Replacing the rear crankshaft seal necessitates removing the transmission, flywheel, and sometimes the engine mounts, which can be labor-intensive.

3. **Tooling Dependency** High-quality tools (e.g., seal puller, torque wrench, and proper alignment guides) are needed to ensure a clean installation.

4. **Risk of Contamination** If the old seal was leaking, oil or debris may have contaminated the flywheel or transmission, requiring additional cleaning during installation.

5. **Limited Availability** While Ajusta is widely stocked, some local auto parts stores may not carry it, requiring online ordering or special ordering.

6. **Mixed Reviews on Fit** Some users report that the seal may not fit perfectly in older or heavily worn engines, requiring additional sealing compound or adjustments.

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### **Conclusion**

The **Ajusta 69BNN-SG29 rear crankshaft seal** is a solid choice for the 1998 2004 Volkswagen Passat, particularly for those seeking a balance between quality and affordability. Its compatibility, durability, and ease of installation make it a practical option for most drivers. However, the success of the replacement depends heavily on proper installation techniques and tooling.

If you are comfortable with mechanical work or have access to a trusted mechanic, this seal is a reliable upgrade. For those who prioritize OEM-level quality or have concerns about fit, alternatives like **Fel-Pro or Bosch OEM-style seals** may be worth considering, though they often come at a higher cost.

### **Recommendation**

- **Buy the Ajusta seal** if you value a cost-effective, well-reviewed aftermarket option and are confident in your ability to install it correctly.

- **Consider OEM or higher-end aftermarket brands** (e.g., Fel-Pro, Bosch) if you want maximum reliability or if your engine has unique wear patterns that may affect seal fit.

- **Ensure proper installation** by following a step-by-step guide, using the right tools, and cleaning all mating surfaces to prevent leaks.

- **Check for leaks post-installation** and address any issues immediately to avoid further damage.

For most Passat owners, the Ajusta seal provides a good balance of performance and value, provided the installation is done carefully.

Details:

Notes Engine Crankshaft Seal.

part #: 69bnnsg29 price

• $116.08

specifications cranshafengin:

• for models: Passat
• for years: 1998-2004
• brand: Ajusa
• mpn: 69bnnsg29
• type: Crankshaft Seal
• placement on vehicle: Rear
• fits 1: 1998-2005 Volkswagen Passat
• fit note: Engine Crankshaft Seal
• manufacturer warranty: 12 Month Warranty
• attention: Please Read All Notes To Confirm Fitment
• cs-sku: 400

returns cranshafengin:

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

seller cranshafengin:

• # reviews: 57964
• city: Miami, Florida
• rating: 97.3%

offer cranshafengin:

• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• started: May 12, 2026

payments cranshafengin:

• wallet: Paypal
• other
• credit card: Diners-club

shipping cranshafengin:

• type: Fixed
• cost: $0.00
• class: Standard
• service: Standard
• transit: 3-7 Days

general cranshafengin:

• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts
• condition: New

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