S&S Cycle Head Bolt Kit — Fits 2017+ Harley-Davidson Milwaukee-Eight (M8) Models

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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.

Watch in action

S&S Cycle Head Bolt Kit for 2017+ Milwaukee-Eight Models

Ensure the utmost integrity and sealing of your 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engine with the S&S Cycle Head Bolt Kit. These high-strength head bolts are a critical component for any engine rebuild, cylinder head service, or performance upgrade, providing the necessary clamping force to maintain a perfect seal between the cylinder head and cylinder.

Superior Strength and Reliability

S&S Cycle's head bolts are manufactured from premium materials, designed to withstand the extreme pressures and temperatures within the M8 engine. Using a new set of quality head bolts is vital to prevent head gasket leaks and ensure consistent engine performance, especially after any work involving cylinder head removal. Don't compromise on critical fasteners.

  • Designed specifically for 2017+ Harley-Davidson Milwaukee-Eight engines.
  • High-strength construction for superior clamping force.
  • Essential for cylinder head installation and rebuilds.
  • Helps prevent head gasket leaks and maintains engine integrity.
  • Ensures reliable performance under demanding conditions.

Trust S&S Cycle for robust engine components. Get your M8 Head Bolt Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2018-2019 Harley-Davidson FLFBS Fat Boy 114 Base
2018-2019 Harley-Davidson FLHCS Heritage Classic 114 Base
2017-2019 Harley-Davidson FLHR Road King Base
2017-2019 Harley-Davidson FLHRC Road King Classic Base
2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2017-2019 Harley-Davidson FLHTK Ultra Limited Base
2017-2019 Harley-Davidson FLHTKL Ultra Limited Low Base
2017-2019 Harley-Davidson FLHTKSE CVO Limited Base
2017-2019 Harley-Davidson FLHXS Street Glide Special Base
2017-2019 Harley-Davidson FLHXSE CVO Street Glide Base
2017-2019 Harley-Davidson FLTRU Road Glide Ultra Base
2017-2019 Harley-Davidson FLTRX Road Glide Base
2018-2019 Harley-Davidson FXBRS Breakout 114 Base
2019 Harley-Davidson FXDRS FXDR 114 Base
2018-2019 Harley-Davidson FXFBS Fat Bob 114 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.

Watch in action

S&S Cycle Head Bolt Kit for 2017+ Milwaukee-Eight Models

Ensure the utmost integrity and sealing of your 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engine with the S&S Cycle Head Bolt Kit. These high-strength head bolts are a critical component for any engine rebuild, cylinder head service, or performance upgrade, providing the necessary clamping force to maintain a perfect seal between the cylinder head and cylinder.

Superior Strength and Reliability

S&S Cycle's head bolts are manufactured from premium materials, designed to withstand the extreme pressures and temperatures within the M8 engine. Using a new set of quality head bolts is vital to prevent head gasket leaks and ensure consistent engine performance, especially after any work involving cylinder head removal. Don't compromise on critical fasteners.

  • Designed specifically for 2017+ Harley-Davidson Milwaukee-Eight engines.
  • High-strength construction for superior clamping force.
  • Essential for cylinder head installation and rebuilds.
  • Helps prevent head gasket leaks and maintains engine integrity.
  • Ensures reliable performance under demanding conditions.

Trust S&S Cycle for robust engine components. Get your M8 Head Bolt Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2018-2019 Harley-Davidson FLFBS Fat Boy 114 Base
2018-2019 Harley-Davidson FLHCS Heritage Classic 114 Base
2017-2019 Harley-Davidson FLHR Road King Base
2017-2019 Harley-Davidson FLHRC Road King Classic Base
2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2017-2019 Harley-Davidson FLHTK Ultra Limited Base
2017-2019 Harley-Davidson FLHTKL Ultra Limited Low Base
2017-2019 Harley-Davidson FLHTKSE CVO Limited Base
2017-2019 Harley-Davidson FLHXS Street Glide Special Base
2017-2019 Harley-Davidson FLHXSE CVO Street Glide Base
2017-2019 Harley-Davidson FLTRU Road Glide Ultra Base
2017-2019 Harley-Davidson FLTRX Road Glide Base
2018-2019 Harley-Davidson FXBRS Breakout 114 Base
2019 Harley-Davidson FXDRS FXDR 114 Base
2018-2019 Harley-Davidson FXFBS Fat Bob 114 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.

Watch in action

S&S Cycle Head Bolt Kit for 2017+ Milwaukee-Eight Models

Ensure the utmost integrity and sealing of your 2017 and newer Harley-Davidson Milwaukee-Eight (M8) engine with the S&S Cycle Head Bolt Kit. These high-strength head bolts are a critical component for any engine rebuild, cylinder head service, or performance upgrade, providing the necessary clamping force to maintain a perfect seal between the cylinder head and cylinder.

Superior Strength and Reliability

S&S Cycle's head bolts are manufactured from premium materials, designed to withstand the extreme pressures and temperatures within the M8 engine. Using a new set of quality head bolts is vital to prevent head gasket leaks and ensure consistent engine performance, especially after any work involving cylinder head removal. Don't compromise on critical fasteners.

  • Designed specifically for 2017+ Harley-Davidson Milwaukee-Eight engines.
  • High-strength construction for superior clamping force.
  • Essential for cylinder head installation and rebuilds.
  • Helps prevent head gasket leaks and maintains engine integrity.
  • Ensures reliable performance under demanding conditions.

Trust S&S Cycle for robust engine components. Get your M8 Head Bolt Kit today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2018-2019 Harley-Davidson FLFBS Fat Boy 114 Base
2018-2019 Harley-Davidson FLHCS Heritage Classic 114 Base
2017-2019 Harley-Davidson FLHR Road King Base
2017-2019 Harley-Davidson FLHRC Road King Classic Base
2017-2019 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
2017-2019 Harley-Davidson FLHTK Ultra Limited Base
2017-2019 Harley-Davidson FLHTKL Ultra Limited Low Base
2017-2019 Harley-Davidson FLHTKSE CVO Limited Base
2017-2019 Harley-Davidson FLHXS Street Glide Special Base
2017-2019 Harley-Davidson FLHXSE CVO Street Glide Base
2017-2019 Harley-Davidson FLTRU Road Glide Ultra Base
2017-2019 Harley-Davidson FLTRX Road Glide Base
2018-2019 Harley-Davidson FXBRS Breakout 114 Base
2019 Harley-Davidson FXDRS FXDR 114 Base
2018-2019 Harley-Davidson FXFBS Fat Bob 114 Base

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