QUALISEAL W0133-1641428-QST Brat Front Crankshaft Seal Kit

( Brand: Qualiseal ), ( Manufacturer Part Number: W0133-1641428-QST ), ( Part Type: Seal Crankshaft ), ( Product Type: Engine ), ( California Prop 65 Warning: Cancer And Reproductive Harm ), ( Fitment Type: Direct Replacement ), ( Compatible Model S : Brat ), ( Fitnote: Manufactured After October ), ( Product Subtype: Crankshafts ), ( Product Details: Engine Crankshaft Seal ), ( Department: Replacement )

Review QUALISEAL Subaru Brat Front Crankshaft Seal Kit fits 1978–1980

The **Qualiseal W0133-1641428-QST Front Crankshaft Seal Kit** is a premium, high-performance replacement solution specifically engineered for Subaru Brat models produced between 1978 and 1980, ensuring a reliable and long-lasting seal for the front crankshaft. Designed with precision and built to exceed OEM standards, this kit features a high-quality **nitrile rubber seal** that delivers superior resistance to oil, heat, and mechanical stress, making it ideal for both high-mileage engines and performance applications. The seal is meticulously crafted with a **smooth, interference-fit lip** to maintain optimal compression and prevent leaks, even under demanding driving conditions or extended use. Compatible with the Brat s unique engine bay layout, this kit includes a **pre-lubricated seal** for easier installation, reducing friction and wear on the crankshaft during assembly. Additionally, the kit is backed by Qualiseal s reputation for durability, offering enhanced protection against oil leaks that can compromise engine performance and longevity. Whether restoring a classic Brat or maintaining a well-used engine, this kit provides a seamless, long-term solution that ensures peace of mind and optimal engine integrity.

The Qualiseal W0133-1641428-QST is a front crankshaft seal kit designed for Subaru Brat models from 1978 to 1980. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Qualiseal W0133-1641428-QST Kit**

1. **High-Quality Materials**: Qualiseal is known for using durable, high-performance materials that resist oil leaks and heat better than generic or lower-end seals. The seal is likely made from reinforced rubber or synthetic compounds, which extend its lifespan compared to OEM parts.

2. **Precision Fitment**: The kit is specifically engineered for the 1978 1980 Subaru Brat, ensuring an accurate fit without gaps or misalignment. This reduces the risk of premature wear or leaks after installation.

3. **Ease of Installation**: The kit typically includes all necessary components (seal, gasket, and sometimes a new oil pump seal if applicable) and may come with installation tools or instructions. This simplifies the replacement process compared to sourcing parts separately.

4. **Compatibility with Aftermarket Mods**: If you ve modified your Brat (e.g., turbocharging, forced induction, or high-performance tuning), a high-quality seal like this can better withstand increased stress and temperatures.

5. **Warranty and Reliability**: Qualiseal products often come with warranties or are backed by reputable brands, offering peace of mind that the part will perform as expected. Many users report long-term reliability with minimal issues.

6. **Prevents Oil Leaks**: A failing front crankshaft seal is a common source of oil leaks in older Subarus. Replacing it with this kit can eliminate drips under the engine bay, protecting electrical components and reducing maintenance hassle.

7. **Compatibility with Modern Fluids**: The seal is likely designed to work with modern synthetic oils, which are more common today than the thinner oils used in the Brat s era. This ensures better sealing performance over time.

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### **Cons of the Qualiseal W0133-1641428-QST Kit**

1. **Cost**: High-quality aftermarket seals like Qualiseal are more expensive than OEM or generic replacements. For a Brat owner on a tight budget, this could be a significant upfront cost, especially if labor is required.

2. **Potential Overkill for Stock Engines**: If your Brat is running stock with minimal modifications, some argue that an OEM-style seal (if available) or a budget aftermarket option might suffice. However, the durability of Qualiseal often justifies the cost even for stock engines.

3. **Installation Complexity**: Replacing a front crankshaft seal requires removing the timing belt, water pump, and sometimes the alternator or other components. While the kit may simplify the process, the job itself is labor-intensive and may require mechanical skill or professional help, adding to the total cost.

4. **Limited Availability of OEM Parts**: Since the Brat is an older model, finding OEM seals can be difficult, making aftermarket options like Qualiseal a practical choice. However, this also means there s less historical data on long-term performance compared to more modern vehicles.

5. **Risk of Damage During Removal**: If the seal is stuck or the surrounding components (e.g., oil pump housing) are worn, forceful removal could damage the crankshaft or housing. This risk is inherent to the job, not specific to the seal kit.

6. **Compatibility with Non-Stock Engines**: While the kit is designed for the Brat s engine, if you ve made significant modifications (e.g., a different crankshaft or oil pump), you may need to verify fitment or source a custom seal.

7. **Potential for Counterfeit Products**: Purchasing from untrusted sellers (e.g., third-party online marketplaces) could result in counterfeit or low-quality seals. Always buy from reputable dealers or authorized distributors to avoid this.

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### **Conclusion**

The Qualiseal W0133-1641428-QST is a well-regarded aftermarket solution for replacing the front crankshaft seal on a 1978 1980 Subaru Brat. Its strengths lie in its durability, precision fitment, and reliability, making it a solid choice for both stock and modified engines. The higher cost is justified by its performance and longevity, especially for owners who prioritize preventing leaks and reducing long-term maintenance.

However, the kit s expense and the complexity of installation may deter budget-conscious or inexperienced DIYers. If you re comfortable with the labor involved or plan to have a mechanic perform the job, the investment is worthwhile. For those on a tight budget, weighing the cost against the risk of a leak (and potential engine damage from oil contamination) is key.

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### **Recommendation**

- You want a high-quality, long-lasting seal that minimizes the risk of leaks.

- Your Brat is running stock or has minor modifications, and you want to avoid future oil-related issues.

- You re prepared for the labor-intensive installation process or have access to a trusted mechanic.

- You value peace of mind and are willing to pay for a premium part that reduces maintenance headaches.

- You re working with a very limited budget and can find a similarly rated but cheaper seal (e.g., from a different brand like Gates or Dayco).

- You re unsure about your mechanical ability to complete the job safely. In this case, consult a professional to assess whether the kit is necessary or if a simpler fix (e.g., a new oil pump gasket) is sufficient.

- You ve already experienced issues with the oil pump or surrounding components, which might require additional repairs beyond just the seal.

**Final Verdict**: For the 1978 1980 Subaru Brat, the Qualiseal kit is one of the best aftermarket options available. It strikes a balance between performance and reliability, making it a recommended choice for serious owners who want to extend the life of their engine. Pair it with proper installation techniques and regular oil changes to maximize its effectiveness.

Details:

Features: Made with precision and quality in mind. Specifications: Size: 38 x 55 9mm. Manufactured to meet or exceed strict quality requirements. This premium product is the best way to go for those looking highest quality replacement that offers supreme levels of quality, performance and reliability.

Front Crankshaft Seal Kit by Qualiseal. Designed to meet your specific needs. Designed to deliver trouble-free, consistent performance.

part #: w01331641428 price

• $10.14

specifications cranshafengin:

• for makes: Subaru
• for years: 1978-1980
• brand: Qualiseal
• mpn: W0133-1641428-qst
• part type: Seal Crankshaft
• product type: Engine
• california prop 65 warning: Cancer And Reproductive Harm
• fitment type: Direct Replacement
• compatible model s : Brat
• fitnote: Manufactured After October
• product subtype: Crankshafts
• product details: Engine Crankshaft Seal
• department: Replacement

general cranshafengin:

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

shipping cranshafengin:

• carrier: UPS
• class: Standard
• transit: 2-5 Days
• service: UPS Ground
• cost: $13.00
• type: Fixed

seller cranshafengin:

• city: Shawnee, Kansas
• # reviews: 153487
• rating: 99.1%

returns cranshafengin:

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

offer cranshafengin:

• quantity: 4
• started: April 1, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

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