S&S Cycle 1.750in x 2.507in x .3130in Left Main Bearing Seal - 5 Pack — Fits 1970+ Harley-Davidson Big Twin

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

S&S Cycle Left Main Bearing Seal 5-Pack for 1970+ Big Twin

Maintain the integrity of your Harley-Davidson Big Twin engine with the S&S Cycle Left Main Bearing Seal 5-Pack. These precision-engineered seals are crucial for preventing oil leaks and ensuring proper lubrication around the main bearing, which is vital for the smooth operation and longevity of your motorcycle's engine.

Reliable Sealing for Classic Harley Models

Specifically designed for 1970 and newer Harley-Davidson Big Twin models, this 5-pack of main bearing seals provides a reliable solution for engine rebuilds or maintenance. Each seal measures 1.750in x 2.507in x .3130in, ensuring a perfect fit and optimal sealing performance. S&S Cycle is renowned for its commitment to quality, delivering components that meet or exceed OEM standards.

  • Dimensions: 1.750in x 2.507in x .3130in
  • Compatible with 1970+ Harley-Davidson Big Twin engines
  • Essential for preventing oil leaks and maintaining engine pressure
  • High-quality construction from S&S Cycle
  • Convenient 5-pack for multiple applications or spares

Protect your investment with these critical seals. A properly sealed engine runs more efficiently and reliably. Purchase your S&S Cycle main bearing seals today at GGCRACING and keep your Big Twin running strong.

Vehicle Fitment

Years Make Model Trim
1997-1999 Harley-Davidson FLHR Road King Base
1998-1999 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1983-1999 Harley-Davidson FLHTC Electra Glide Classic Base
1996-1999 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
1988-1999 Harley-Davidson FLSTC Heritage Softail Classic Base
1990-1999 Harley-Davidson FLSTF Fat Boy Base
1993 Harley-Davidson FLSTN Heritage Softail Nostalgia Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1998-1999 Harley-Davidson FLTR Road Glide Base
1998-1999 Harley-Davidson FLTRI Road Glide Base
1995-1999 Harley-Davidson FXD Dyna Super Glide Base
1993-1999 Harley-Davidson FXDL Dyna Low Rider Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1982-1992 Harley-Davidson FXRS Low Glide Base
1986-1993 Harley-Davidson FXRS-SP Low Rider Sport Base
1983-1992 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1999 Harley-Davidson FXSTB Night Train Base
1986-1999 Harley-Davidson FXSTC Softail Custom Base
1988-1999 Harley-Davidson FXSTS Springer Softail Base
1995-1997 Harley-Davidson FXSTSB Bad Boy Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

S&S Cycle Left Main Bearing Seal 5-Pack for 1970+ Big Twin

Maintain the integrity of your Harley-Davidson Big Twin engine with the S&S Cycle Left Main Bearing Seal 5-Pack. These precision-engineered seals are crucial for preventing oil leaks and ensuring proper lubrication around the main bearing, which is vital for the smooth operation and longevity of your motorcycle's engine.

Reliable Sealing for Classic Harley Models

Specifically designed for 1970 and newer Harley-Davidson Big Twin models, this 5-pack of main bearing seals provides a reliable solution for engine rebuilds or maintenance. Each seal measures 1.750in x 2.507in x .3130in, ensuring a perfect fit and optimal sealing performance. S&S Cycle is renowned for its commitment to quality, delivering components that meet or exceed OEM standards.

  • Dimensions: 1.750in x 2.507in x .3130in
  • Compatible with 1970+ Harley-Davidson Big Twin engines
  • Essential for preventing oil leaks and maintaining engine pressure
  • High-quality construction from S&S Cycle
  • Convenient 5-pack for multiple applications or spares

Protect your investment with these critical seals. A properly sealed engine runs more efficiently and reliably. Purchase your S&S Cycle main bearing seals today at GGCRACING and keep your Big Twin running strong.

Vehicle Fitment

Years Make Model Trim
1997-1999 Harley-Davidson FLHR Road King Base
1998-1999 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1983-1999 Harley-Davidson FLHTC Electra Glide Classic Base
1996-1999 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
1988-1999 Harley-Davidson FLSTC Heritage Softail Classic Base
1990-1999 Harley-Davidson FLSTF Fat Boy Base
1993 Harley-Davidson FLSTN Heritage Softail Nostalgia Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1998-1999 Harley-Davidson FLTR Road Glide Base
1998-1999 Harley-Davidson FLTRI Road Glide Base
1995-1999 Harley-Davidson FXD Dyna Super Glide Base
1993-1999 Harley-Davidson FXDL Dyna Low Rider Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1982-1992 Harley-Davidson FXRS Low Glide Base
1986-1993 Harley-Davidson FXRS-SP Low Rider Sport Base
1983-1992 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1999 Harley-Davidson FXSTB Night Train Base
1986-1999 Harley-Davidson FXSTC Softail Custom Base
1988-1999 Harley-Davidson FXSTS Springer Softail Base
1995-1997 Harley-Davidson FXSTSB Bad Boy Base

Product Details

Product Description

About S&S Cycle

S&S Cycle engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full S&S Cycle lineup with fast shipping and expert fitment support — order with confidence.

S&S Cycle Left Main Bearing Seal 5-Pack for 1970+ Big Twin

Maintain the integrity of your Harley-Davidson Big Twin engine with the S&S Cycle Left Main Bearing Seal 5-Pack. These precision-engineered seals are crucial for preventing oil leaks and ensuring proper lubrication around the main bearing, which is vital for the smooth operation and longevity of your motorcycle's engine.

Reliable Sealing for Classic Harley Models

Specifically designed for 1970 and newer Harley-Davidson Big Twin models, this 5-pack of main bearing seals provides a reliable solution for engine rebuilds or maintenance. Each seal measures 1.750in x 2.507in x .3130in, ensuring a perfect fit and optimal sealing performance. S&S Cycle is renowned for its commitment to quality, delivering components that meet or exceed OEM standards.

  • Dimensions: 1.750in x 2.507in x .3130in
  • Compatible with 1970+ Harley-Davidson Big Twin engines
  • Essential for preventing oil leaks and maintaining engine pressure
  • High-quality construction from S&S Cycle
  • Convenient 5-pack for multiple applications or spares

Protect your investment with these critical seals. A properly sealed engine runs more efficiently and reliably. Purchase your S&S Cycle main bearing seals today at GGCRACING and keep your Big Twin running strong.

Vehicle Fitment

Years Make Model Trim
1997-1999 Harley-Davidson FLHR Road King Base
1998-1999 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
1980-1984 Harley-Davidson FLHS Electra Glide Sport Base
1983-1999 Harley-Davidson FLHTC Electra Glide Classic Base
1996-1999 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1986-1990 Harley-Davidson FLST Heritage Softail Base
1988-1999 Harley-Davidson FLSTC Heritage Softail Classic Base
1990-1999 Harley-Davidson FLSTF Fat Boy Base
1993 Harley-Davidson FLSTN Heritage Softail Nostalgia Base
1980-1983 Harley-Davidson FLT Tour Glide Base
1998-1999 Harley-Davidson FLTR Road Glide Base
1998-1999 Harley-Davidson FLTRI Road Glide Base
1995-1999 Harley-Davidson FXD Dyna Super Glide Base
1993-1999 Harley-Davidson FXDL Dyna Low Rider Base
1987-1994 Harley-Davidson FXLR Low Rider Custom Base
1982-1992 Harley-Davidson FXRS Low Glide Base
1986-1993 Harley-Davidson FXRS-SP Low Rider Sport Base
1983-1992 Harley-Davidson FXRT Sport Glide Base
1977-1982 Harley-Davidson FXS Low Rider Base
1999 Harley-Davidson FXSTB Night Train Base
1986-1999 Harley-Davidson FXSTC Softail Custom Base
1988-1999 Harley-Davidson FXSTS Springer Softail Base
1995-1997 Harley-Davidson FXSTSB Bad Boy Base

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