S&S Cycle 1970+ BT Left Main Bearing Seal — Stock Replacement Ignition

SKU: SSC31-4010
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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 for 1970+ Big Twin

Maintain the peak performance and protect your engine with this high-quality Left Main Bearing Seal from S&S Cycle. Specifically designed for 1970 and later Big Twin (BT) engines, this seal is crucial for preventing oil leaks and ensuring proper lubrication of the main bearing.

Product Details:

  • Application: 1970+ Big Twin (BT) engines
  • Position: Left Main Bearing
  • Dimensions: 1.750in (inner diameter) x 2.507in (outer diameter) x .3130in (width)
  • Type: Main Bearing Seal
  • Brand: S&S Cycle

This S&S Cycle main bearing seal is manufactured to strict specifications, ensuring a perfect fit and reliable sealing performance. It effectively keeps contaminants out and lubricant in, which is vital for the health and longevity of your engine's crankshaft and bearings. Replacing a worn or damaged seal can prevent costly engine damage and maintain optimal running conditions.

Whether you're performing routine maintenance or a complete engine overhaul, this Left Main Bearing Seal is an essential component. Trust in the quality and engineering of S&S Cycle for your Big Twin engine needs. Find this vital part and more at GGCRACING.

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 for 1970+ Big Twin

Maintain the peak performance and protect your engine with this high-quality Left Main Bearing Seal from S&S Cycle. Specifically designed for 1970 and later Big Twin (BT) engines, this seal is crucial for preventing oil leaks and ensuring proper lubrication of the main bearing.

Product Details:

  • Application: 1970+ Big Twin (BT) engines
  • Position: Left Main Bearing
  • Dimensions: 1.750in (inner diameter) x 2.507in (outer diameter) x .3130in (width)
  • Type: Main Bearing Seal
  • Brand: S&S Cycle

This S&S Cycle main bearing seal is manufactured to strict specifications, ensuring a perfect fit and reliable sealing performance. It effectively keeps contaminants out and lubricant in, which is vital for the health and longevity of your engine's crankshaft and bearings. Replacing a worn or damaged seal can prevent costly engine damage and maintain optimal running conditions.

Whether you're performing routine maintenance or a complete engine overhaul, this Left Main Bearing Seal is an essential component. Trust in the quality and engineering of S&S Cycle for your Big Twin engine needs. Find this vital part and more at GGCRACING.

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 for 1970+ Big Twin

Maintain the peak performance and protect your engine with this high-quality Left Main Bearing Seal from S&S Cycle. Specifically designed for 1970 and later Big Twin (BT) engines, this seal is crucial for preventing oil leaks and ensuring proper lubrication of the main bearing.

Product Details:

  • Application: 1970+ Big Twin (BT) engines
  • Position: Left Main Bearing
  • Dimensions: 1.750in (inner diameter) x 2.507in (outer diameter) x .3130in (width)
  • Type: Main Bearing Seal
  • Brand: S&S Cycle

This S&S Cycle main bearing seal is manufactured to strict specifications, ensuring a perfect fit and reliable sealing performance. It effectively keeps contaminants out and lubricant in, which is vital for the health and longevity of your engine's crankshaft and bearings. Replacing a worn or damaged seal can prevent costly engine damage and maintain optimal running conditions.

Whether you're performing routine maintenance or a complete engine overhaul, this Left Main Bearing Seal is an essential component. Trust in the quality and engineering of S&S Cycle for your Big Twin engine needs. Find this vital part and more at GGCRACING.

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