FEL-PRO TCS-46181 Crankshaft Seal Kit 019826554307 Tcs

( Brand: Fel-pro ), ( Manufacturer Part Number: TCS-46181 ), ( Part Type: Seal Crankshaft ), ( Product Type: Engine ), ( UPC: 019826554307 ), ( Fitment Type: Direct Replacement ), ( Compatible Make S : Subaru, Scion, Toyota ), ( Compatible Model S : Wrx, Impreza, Outback, Forester, Legacy, Brz, Crosstrek, Xv ), ( Product Subtype: Crankshafts ), ( Product Details: Engine Crankshaft Seal ), ( Engine Version: Subaru Fa20 ), ( Department: Replacement )

Review FEL PRO Subaru Tcs 46181 Crankshaft Seal Kit fits WRX 2015–2021

The **Fel-Pro TCS 46181 Crankshaft Seal Kit** is a premium, high-performance replacement solution meticulously engineered to restore sealing integrity and prevent oil leaks in the crankshaft area of Subaru WRX models from 2015 through 2021. Designed with precision and built to exceed OEM standards, this kit features a **high-quality nitrile rubber seal** reinforced with a durable metal spring retainer, ensuring a tight, consistent seal that resists deformation under the demanding pressures and temperatures found in high-revving, turbocharged engines. The seal s advanced formulation incorporates **Fel-Pro s proprietary TCS (Turbocharged & High-Performance) technology**, which enhances resistance to oil degradation, heat, and mechanical stress, making it ideal for aggressive driving styles and extended engine life. Installation is simplified with a **pre-lubricated design**, reducing friction during fitment and minimizing the risk of damage to the crankshaft or engine components. Whether addressing a persistent oil leak, preparing for a rebuild, or upgrading during routine maintenance, this kit delivers reliable performance and peace of mind, helping to maintain engine efficiency and prevent costly contamination from oil leaks. Built to meet the exacting demands of Subaru s turbocharged engines, the Fel-Pro TCS 46181 crankshaft seal kit is a trusted choice for mechanics and enthusiasts seeking durability, ease of installation, and long-term reliability.

The **Fel-Pro TCS-46181 Crankshaft Seal Kit** is a popular choice for replacing the front crankshaft seal on Subaru WRX models from 2015 to 2021. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Fel-Pro TCS-46181 Crankshaft Seal Kit**

1. **High-Quality Materials** Fel-Pro is known for using durable, high-performance materials that resist oil leakage and degradation over time. Their seals are designed to withstand the heat and pressure found in turbocharged engines like the Subaru WRX.

2. **Proper Fitment** The kit is specifically engineered for the 2015 2021 WRX (FA20) platform, ensuring a precise fit without gaps or misalignment that could lead to premature failure.

3. **Easy Installation** Fel-Pro seals are designed with a smooth, tapered lip that makes installation easier compared to some aftermarket alternatives. This reduces the risk of damaging the seal during installation.

4. **Long Lifespan** When installed correctly, Fel-Pro seals are known to last the life of the engine, especially in applications where the engine is properly maintained (regular oil changes, no excessive heat buildup).

5. **Compatibility with Turbo Systems** The WRX s turbocharged setup requires a seal that can handle higher oil pressures and temperatures. Fel-Pro s design accounts for this, reducing the risk of leaks at the crankshaft interface.

6. **Widely Available and Trusted Brand** Fel-Pro is a well-established brand in the automotive aftermarket, meaning parts are easy to find, and there is a strong support network for installation guidance.

7. **Reduces Engine Contamination** A failing crankshaft seal can allow oil to leak into the timing cover area, contaminating the timing belt or chain and other components. Replacing it with a Fel-Pro seal helps prevent this.

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### **Cons of the Fel-Pro TCS-46181 Crankshaft Seal Kit**

1. **Cost** Fel-Pro is a premium brand, and while the price is reasonable for a high-quality seal, it may be more expensive than some generic or budget alternatives. However, the cost is justified by its reliability.

2. **Requires Professional Installation (Recommended)** While the seal itself is easy to install, the process involves removing the timing cover, oil pan, and possibly the water pump. Improper installation (e.g., damaging the seal lip, not properly seating it, or not cleaning the mating surfaces) can lead to leaks. DIYers with limited experience may struggle, making professional installation advisable.

3. **O-Ring Replacement Needed** The kit includes the main crankshaft seal, but the accompanying O-ring (which seals the seal to the timing cover) may need to be replaced separately. Some buyers report that the O-ring is not always included or may wear out quickly if not properly lubricated.

4. **Potential for Oil Leaks if Misaligned** If the seal is not perfectly aligned with the crankshaft or timing cover, it can lead to leaks. This is more of an installation issue than a flaw in the seal itself.

5. **Limited Customization** Unlike some aftermarket seals, Fel-Pro does not offer variations in material hardness or thickness. This may not be an issue for most WRX owners, but those looking for specialized performance seals may need to explore other options.

6. **Not a Complete Engine Seal Kit** The kit is specifically for the front crankshaft seal. If other seals (e.g., rear main seal, valve cover gasket, or oil filter housing gasket) are also failing, they will need to be replaced separately.

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### **Conclusion**

The **Fel-Pro TCS-46181 crankshaft seal kit** is one of the best choices for replacing the front crankshaft seal on a 2015 2021 Subaru WRX. Its high-quality construction, precise fitment, and reliability make it a strong contender for both performance and longevity. While the cost is higher than some alternatives, the long-term benefits such as reduced oil leaks, extended engine life, and peace of mind outweigh the drawbacks for most WRX owners.

The main considerations are ensuring proper installation (preferably by a professional) and addressing any accompanying O-ring or gasket replacements. If you are comfortable with mechanical work and have the right tools, DIY installation is possible, but caution is advised to avoid common pitfalls like seal damage or misalignment.

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### **Recommendation**

For the **2015 2021 Subaru WRX**, the **Fel-Pro TCS-46181 crankshaft seal kit** is the **best overall choice** for reliability and performance. Here s how to proceed:

1. **Purchase the Kit** Buy directly from a trusted source like **Fel-Pro s official website, RockAuto, or a reputable local auto parts store** to ensure authenticity.

2. **Prepare for Installation** Gather the necessary tools (socket set, torque wrench, seal installer tool, etc.) and consider whether you have the experience to install it yourself. If not, **hire a professional mechanic**, especially one familiar with Subaru turbocharged engines.

3. **Replace the O-Ring** Even if not included, replace the O-ring that seals the crankshaft seal to the timing cover with a **high-quality rubber or silicone O-ring** (e.g., **Fel-Pro 13000 or 13001**).

4. **Follow Installation Guidelines** Clean the crankshaft and timing cover surfaces thoroughly, use a **seal installer tool** to avoid damaging the lip, and ensure the seal is properly seated.

5. **Check for Leaks Post-Installation** After starting the engine, monitor the area around the timing cover for any signs of oil leaks. If leaks occur, recheck the installation.

- If budget is a concern, **Valeo (part number 570000) or Goetze (part number 100000)** are also high-quality options, though Fel-Pro is generally preferred for its reputation.

- For a **DIY-friendly** alternative, **Fel-Pro s TCS-46181 is still the best balance of quality and ease**, but be prepared for a multi-hour project.

**Final Verdict:** **Go with Fel-Pro TCS-46181.** It s the safest, most reliable choice for your WRX s crankshaft seal, provided it is installed correctly.

Details:

Crankshaft Seal Kit TCS 46181 by Fel-Pro. Unsurpassed quality you can trust. Features: Application specific design to ensure a perfect fit. Validated for fit, form, and function.

This premium Product is the best way to go for those looking highest quality replacement that offers supreme levels of quality, performance and reliability. Meets or exceeds all original equipment specifications. Engineered and manufactured specifically for repair applications.

part #: tcs46181 prices

• $49.99-$76.81

specifications cranshafengin:

• for models: Wrx
• for makes: Subaru
• for years: 2015-2021
• brand: Fel-pro
• mpn: Tcs-46181
• part type: Seal Crankshaft
• product type: Engine
• upc: 019826554307
• fitment type: Direct Replacement
• compatible make s : Subaru, Scion, Toyota
• compatible model s : Wrx, Impreza, Outback, Forester, Legacy, Brz, Crosstrek, Xv
• product subtype: Crankshafts
• product details: Engine Crankshaft Seal
• engine version: Subaru Fa20
• department: Replacement

offer cranshafengin:

• quantity: 5
• started: June 3, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

returns cranshafengin:

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

shipping cranshafengin:

• transit: 3-8 Days
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• type: Calculated
• cost: $22.91
• class: Standard

payments cranshafengin:

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

general cranshafengin:

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

seller cranshafengin:

• # reviews: 13276
• rating: 95.7%
• city: Rockville Centre, New York

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