Sealed Power 4221M20 Main Bearing Set - 0.020in Undersize — Fits Vintage Pontiac V8 Engines

SKU: BDBR_4221M20
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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 Sealed Power

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

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Authentic Restoration for Vintage Pontiac V8: Sealed Power 4221M20 Main Bearings

Embark on a meticulous restoration of your vintage Pontiac V8 engine with the Sealed Power 4221M20 Main Bearing Set. This specialized kit is engineered for rebuilds that require a 0.020 inch undersize, providing the exact fitment and crucial oil clearances needed for historical accuracy and reliable operation. Sealed Power is a name synonymous with quality in engine components, trusted by restorers and enthusiasts for bringing classic engines back to life.

Preserving Heritage with Modern Precision

Main bearings are the unsung heroes of any engine, particularly in vintage applications where original specifications and durability are paramount. The 4221M20 set is crafted with an unwavering commitment to quality, utilizing materials that offer excellent wear resistance and consistent lubrication. This ensures your vintage Pontiac V8 runs smoothly, quietly, and reliably, preserving its heritage for years to come while benefiting from modern manufacturing precision.

  • Vintage Application: Specifically designed for vintage Pontiac V8 engines.
  • Undersize: 0.020 inches for precise crankshaft journal machining.
  • Comprehensive Set: Contains all necessary main bearings for a complete engine restoration.
  • Reliable Performance: Built to meet or exceed original equipment standards for lasting durability.

The Choice for Connoisseurs of Classic Pontiac

Opting for Sealed Power means choosing a brand that understands the unique demands of vintage engine restoration. The 4221M20 main bearing set provides the critical foundation for a successful rebuild, ensuring your classic Pontiac V8 performs as it should, with the integrity and authenticity you expect. Trust in Sealed Power's legacy of excellence for your most cherished projects. Explore our full range of vintage engine components at GGCRACING.COM.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Sealed Power

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

Watch in action

Authentic Restoration for Vintage Pontiac V8: Sealed Power 4221M20 Main Bearings

Embark on a meticulous restoration of your vintage Pontiac V8 engine with the Sealed Power 4221M20 Main Bearing Set. This specialized kit is engineered for rebuilds that require a 0.020 inch undersize, providing the exact fitment and crucial oil clearances needed for historical accuracy and reliable operation. Sealed Power is a name synonymous with quality in engine components, trusted by restorers and enthusiasts for bringing classic engines back to life.

Preserving Heritage with Modern Precision

Main bearings are the unsung heroes of any engine, particularly in vintage applications where original specifications and durability are paramount. The 4221M20 set is crafted with an unwavering commitment to quality, utilizing materials that offer excellent wear resistance and consistent lubrication. This ensures your vintage Pontiac V8 runs smoothly, quietly, and reliably, preserving its heritage for years to come while benefiting from modern manufacturing precision.

  • Vintage Application: Specifically designed for vintage Pontiac V8 engines.
  • Undersize: 0.020 inches for precise crankshaft journal machining.
  • Comprehensive Set: Contains all necessary main bearings for a complete engine restoration.
  • Reliable Performance: Built to meet or exceed original equipment standards for lasting durability.

The Choice for Connoisseurs of Classic Pontiac

Opting for Sealed Power means choosing a brand that understands the unique demands of vintage engine restoration. The 4221M20 main bearing set provides the critical foundation for a successful rebuild, ensuring your classic Pontiac V8 performs as it should, with the integrity and authenticity you expect. Trust in Sealed Power's legacy of excellence for your most cherished projects. Explore our full range of vintage engine components at GGCRACING.COM.

Product Details

Product Description

About Sealed Power

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

Watch in action

Authentic Restoration for Vintage Pontiac V8: Sealed Power 4221M20 Main Bearings

Embark on a meticulous restoration of your vintage Pontiac V8 engine with the Sealed Power 4221M20 Main Bearing Set. This specialized kit is engineered for rebuilds that require a 0.020 inch undersize, providing the exact fitment and crucial oil clearances needed for historical accuracy and reliable operation. Sealed Power is a name synonymous with quality in engine components, trusted by restorers and enthusiasts for bringing classic engines back to life.

Preserving Heritage with Modern Precision

Main bearings are the unsung heroes of any engine, particularly in vintage applications where original specifications and durability are paramount. The 4221M20 set is crafted with an unwavering commitment to quality, utilizing materials that offer excellent wear resistance and consistent lubrication. This ensures your vintage Pontiac V8 runs smoothly, quietly, and reliably, preserving its heritage for years to come while benefiting from modern manufacturing precision.

  • Vintage Application: Specifically designed for vintage Pontiac V8 engines.
  • Undersize: 0.020 inches for precise crankshaft journal machining.
  • Comprehensive Set: Contains all necessary main bearings for a complete engine restoration.
  • Reliable Performance: Built to meet or exceed original equipment standards for lasting durability.

The Choice for Connoisseurs of Classic Pontiac

Opting for Sealed Power means choosing a brand that understands the unique demands of vintage engine restoration. The 4221M20 main bearing set provides the critical foundation for a successful rebuild, ensuring your classic Pontiac V8 performs as it should, with the integrity and authenticity you expect. Trust in Sealed Power's legacy of excellence for your most cherished projects. Explore our full range of vintage engine components at GGCRACING.COM.

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