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  3. SBT 21-401

21-401 SBT Crankshaft End Seal Kit Yamaha

fits make: Yamaha.

21-401 SBT Crankshaft End Seal Kit Yamaha
Product Aspects
BrandSBT
Manufacturer Part Number21-401
Part TypeSEAL CRANKSHAFT

Review SBT Crankshaft End Seal Kit Fits Yamaha for YAMAHA

SBT 21-401 Crankshaft End Seal Kit for Yamaha Outboard Motors (93102-36M33-00, 93101-36M46-00)

Description:

SBT's 21-401 Crankshaft End Seal Kit is an essential upgrade for Yamaha outboard motor owners seeking to maintain their engine's performance and prevent costly repairs. This kit includes two critical seals - the 93102-36M33-00 and the 93101-36M46-00 - that protect the crankshaft from water intrusion and ensure a proper seal between the engine and the lower unit.

The 93102-36M33-00 crankshaft seal is designed to prevent water from entering the crankcase. Manufactured from high-quality materials, this seal offers excellent resistance to wear and tear, ensuring a tight seal against the crankshaft and preventing potential water leakage. Its robust design provides superior sealing performance, even in the harshest marine environments.

The 93101-36M46-00 crankshaft end seal, on the other hand, is responsible for creating a tight seal between the engine and the lower unit. The seal is engineered to withstand the high-pressure water conditions that outboard motors are subjected to, ensuring that no water enters the engine compartment. SBT's crankshaft end seal is manufactured with precision, ensuring a perfect fit and a reliable seal that stands the test of time.

By choosing SBT's 21-401 Crankshaft End Seal Kit, you'll be investing in the long-term health and reliability of your Yamaha outboard motor. Replacing these seals regularly is an essential part of routine maintenance, helping to prevent costly repairs, and ensuring continued peak performance.

Key Features:

- Includes two critical crankshaft end seals for Yamaha outboard motors: 93102-36M33-00 and 93101-36M46-00

- High-quality materials for superior resistance to wear and tear

- Engineered to prevent water intrusion and maintain a tight seal between engine and lower unit

- Perfect fit and reliable sealing performance

- Essential part of routine maintenance to prevent costly repairs and ensure peak performance.

Buying an SBT 21-401 Crankshaft End Seal Kit for a Yamaha Engine: A Comprehensive Analysis

Introduction:

The SBT 21-401 Crankshaft End Seal Kit (Yamaha part numbers: 93102-36m33-00 and 93101-36m46-00) is a critical component for maintaining the sealing function of a Yamaha engine's crankshaft. In this analysis, we will discuss the potential advantages and disadvantages of purchasing this crankshaft end seal kit.

Pros:

1. OEM Compatibility: The SBT 21-401 Crankshaft End Seal Kit is designed to be a direct replacement for the original equipment manufacturer (OEM) seals, ensuring a perfect fit and function.

2. High-Quality Materials: The kit uses high-quality materials that provide excellent sealing performance, longevity, and resistance to wear and tear.

3. Improved Engine Performance: Properly functioning crankshaft end seals prevent oil leaks and help maintain optimal engine oil pressure, resulting in improved engine performance and fuel efficiency.

4. Easy Installation: The kit includes all necessary components for a straightforward installation process, often requiring minimal tools and time.

5. Cost-Effective: In the long run, replacing crankshaft end seals with a new kit is a more cost-effective solution than dealing with recurring oil leaks and potential engine damage.

Cons:

1. Initial Cost: The SBT 21-401 Crankshaft End Seal Kit may carry a higher price tag compared to aftermarket alternatives. However, the benefits of OEM compatibility, high-quality materials, and improved engine performance often outweigh the initial cost.

2. Availability: Depending on the location and availability, it might be challenging to find this specific crankshaft end seal kit in stock at local retailers. Online marketplaces, such as Amazon, provide a more accessible and convenient option.

Conclusion:

The SBT 21-401 Crankshaft End Seal Kit is a valuable investment for Yamaha engine owners. While the initial cost may be higher than some aftermarket alternatives, the benefits of OEM compatibility, high-quality materials, and improved engine performance make it a cost-effective solution in the long run. Additionally, the straightforward installation process and the convenience of ordering it online make this a desirable choice for maintaining the health and longevity of a Yamaha engine.

Recommendation:

For Yamaha engine owners seeking a reliable and long-lasting solution for their crankshaft end seals, the SBT 21-401 Crankshaft End Seal Kit is an excellent choice. It is recommended to purchase this kit from a reputable online retailer or an authorized Yamaha dealer to ensure authenticity and quality.

Details:

Sbt crankshaft end seal kit fits Yamaha 93102-36M33-00 93101-36M46-00 part# 703sb401 applications. Engine warranty Sbt warrants new long blocks and short for a period of one 1 year from the date original purchase against any failure that would require replacement. Details: designed for reliable performance and fit, replaces oem# 93102-36M33-00.

specifications watercraftimp:

  • for makes: Yamaha
  • brand: Sbt
  • mpn: 21-401
  • part type: Seal Crankshaft

offer watercraftimp:

  • availability: in stock
  • sold #: 6
  • options: ship-to-home
  • prices: $21.00–$25.25
  • item condition: New
  • in stock #: 4
  • started: may 31, 2026

seller watercraftimp:

  • city: clearwater, fl
  • # reviews: 35265
  • rating: 100.0%

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  • class: standard, expedited, one-day
  • carrier: fedex
  • service: standard, fedex 2day, fedex standard overnight
  • type: fixed
  • transit: 3-5 days

general watercraftimp:

  • category: Watercraft Parts > Engines > Impellers Components

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  • paid by: seller
  • policy: returns accepted
  • time: 60 days

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rating: 100.0% out of 100 based on 265 user ratings.
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