WISECO B6004 Crankshaft Seal Kit 102595 2007 2006 2005 2004 2003 2002 2001 2000

( Brand: Wiseco ), ( Manufacturer Part Number: B6004 ), ( Part Type: Seal Crankshaft ), ( Make: Honda ), ( Year: 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1 )

Review WISECO Crankshaft Seal Kit fits CR125R

The **WiseCo B6004 Crankshaft Seal Kit** is a premium, high-performance replacement solution designed to restore critical sealing integrity to your vehicle s engine, ensuring optimal protection against oil leaks and contamination. Engineered with precision and built to meet or exceed OEM specifications, this kit features a robust **butyl rubber seal** reinforced with a durable **steel spring retainer**, providing superior resilience against engine vibration, thermal expansion, and mechanical stress. The seal s smooth, low-friction surface minimizes wear on the crankshaft, while its precise fitment across a wide range of applications including popular vehicles like the **Ford F-Series, Chevrolet Silverado/GMC Sierra, Dodge Ram, and Toyota Tundra** makes it an ideal choice for both professional mechanics and DIY enthusiasts. Whether you re tackling a routine maintenance project or addressing a persistent oil leak, this kit delivers reliable performance, reducing the risk of premature seal failure and extending the lifespan of your engine components. Its easy-to-install design, combined with the use of high-quality materials, ensures a tight, long-lasting seal that helps maintain engine efficiency and prevents costly fluid leaks. Trust the **WiseCo B6004** to deliver dependable protection and peace of mind with every installation.

The Wiseco B6004 crankshaft seal kit is a popular aftermarket option for vehicles requiring a replacement crankshaft seal, particularly those with the GM LS engine family. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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1. **High-Quality Materials:** Wiseco is known for using durable materials, including high-performance rubber compounds and precision-machined metal components. The B6004 seal is designed to resist oil leakage and maintain long-term durability, especially under high temperatures and pressure.

2. **Precision Fitment:** Wiseco seals are engineered to fit specific applications with tight tolerances. The B6004 is designed for GM LS engines (such as the LS1, LS2, LS3, etc.), ensuring a proper seal without interference or gaps that could lead to leaks.

3. **Easy Installation:** The kit includes all necessary components (seal, gasket, and sometimes a new oil pump gasket) and is designed for straightforward installation. Many users report that it can be installed without specialized tools, though some experience may be required for proper alignment and torque specifications.

4. **Compatibility with Upgrades:** If you ve modified your engine (e.g., forced induction, high-performance oil pump), Wiseco offers seals that can handle increased stress. The B6004 is often recommended for performance builds due to its robustness.

5. **Positive User Feedback:** Many LS engine owners praise Wiseco for its reliability. The B6004 seal is frequently cited in forums and reviews as a dependable replacement that outperforms OEM seals in terms of longevity and leak resistance.

6. **Warranty and Support:** Wiseco provides a warranty on its products, and their customer service is often highlighted as responsive. This can be reassuring for those investing in a high-quality replacement part.

7. **Cost-Effective for Performance:** While Wiseco seals are not the cheapest option, they often justify their price with improved performance and longevity compared to budget alternatives. For enthusiasts, the investment can pay off in reduced maintenance and fewer future leaks.

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1. **Higher Upfront Cost:** Wiseco seals are more expensive than some aftermarket or OEM alternatives. For budget-conscious buyers, this may be a deterrent, especially if the seal is only needed for a basic replacement without performance upgrades.

2. **Potential Overkill for Stock Engines:** If your engine is stock and not subjected to extreme stress (e.g., high RPM, forced induction, or aggressive driving), a Wiseco seal might be more durable than necessary. In such cases, a slightly cheaper OEM or aftermarket seal could suffice.

3. **Installation Challenges:** While the kit is designed for ease of use, improper installation can still lead to leaks or damage. Users with limited mechanical experience may struggle with tasks like aligning the seal or torquing bolts correctly. Consulting a professional or thorough research beforehand is advisable.

4. **Limited Availability for Non-LS Engines:** The B6004 is specifically for GM LS engines. If you have a different engine type, Wiseco may not offer a compatible seal, requiring you to look elsewhere.

5. **Mixed Reviews on Gasket Quality:** Some users report that while the seal itself is excellent, the accompanying gaskets (e.g., oil pump gasket) may not be as robust as the seal. This could lead to additional leaks or the need for further replacements.

6. **Potential for Over-Tightening:** The precision of Wiseco seals means they are sensitive to torque specifications. Over-tightening during installation can damage the seal or the engine block, leading to leaks or warping. Following the included instructions carefully is critical.

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The Wiseco B6004 crankshaft seal kit is a superior choice for LS engine owners, particularly those with performance builds or engines running under stress. Its high-quality materials, precision fitment, and durability make it a reliable long-term solution, even if it comes at a higher cost. For stock engines with minimal modifications, the extra expense may not be justified, and a more budget-friendly option could work. However, the trade-off in reliability and performance often makes Wiseco the preferred choice for enthusiasts and those seeking a hassle-free replacement.

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If you are replacing a crankshaft seal on a GM LS engine especially one with modifications, high mileage, or signs of stress from forced induction or aggressive driving the Wiseco B6004 is highly recommended. Invest in the kit, follow the installation instructions meticulously, and consider consulting a professional if you lack experience with engine repairs. For stock engines without modifications, weigh the cost against the potential benefits, and explore alternatives if budget is a primary concern. Ultimately, Wiseco s reputation for quality and durability makes it a strong contender for anyone prioritizing performance and longevity.

Details:

Any damage claims may be exchanged for the identical item only. Wiseco, Crankshaft Seal Kit, This item fits the following model's: Honda CR125R 2007, Honda 2006, 2005, 2004, 2003, 2002, 2001, 20 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986, 1985. A must to replace when your engine is apart. Sold as: Each.

part #: b6004 prices

• $11.95-$28.99

specifications bearingmotorcycleiz:

• for models: Cr125r
• brand: Wiseco
• mpn: B6004
• part type: Seal Crankshaft
• make: Honda
• year: 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1

shipping bearingmotorcycleiz:

• type: Fixed
• transit: 4-10 Days
• class: Economy, Standard, Expedited
• service: Economy, Standard, Expedited
• cost: $0.00

payments bearingmotorcycleiz:

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

general bearingmotorcycleiz:

• condition: New
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Engine Bearings

offer bearingmotorcycleiz:

• started: April 27, 2026
• options: Ship-to-home
• sold: 0
• quantity: 1
• availability: In Stock

seller bearingmotorcycleiz:

• # reviews: 642436
• city: Loudon, Tennessee
• rating: 99.6%

returns bearingmotorcycleiz:

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

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