Twin Power Rocker Box Gasket Kit for Harley-Davidson 86-90 XL Models

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SKU: TWP043198
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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 TwinPower

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

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Premium Rocker Box Gasket Kit for Harley-Davidson XL Models (1986-1990)

Maintain the integrity of your engine with this high-quality Rocker Box Gasket Kit from Twin Power, specifically designed for 1986-1990 Harley-Davidson XL models. Engineered to meet or exceed original equipment specifications, this kit ensures a reliable seal, preventing oil leaks and maintaining optimal engine performance. This gasket set is a direct replacement for Harley-Davidson part number 17030-89, offering a perfect fit and easy installation.

Key Features and Benefits:

  • Direct Fit Replacement: Replaces Harley-Davidson part #17030-89 for seamless integration.
  • Durable Construction: Made from high-quality materials to withstand engine heat and pressure.
  • Leak Prevention: Ensures a tight seal for rocker boxes, preventing oil leaks and maintaining engine cleanliness.
  • Optimized Performance: Helps maintain proper engine compression and performance.
  • Comprehensive Kit: Includes all necessary gaskets for a complete rocker box seal.

Vehicle Fitment:

This gasket kit is compatible with the following Harley-Davidson models:

  • 1986-1987: XLH1100
  • 1988-1990: XLH1200
  • 1986-1990: XLH883
  • 1986-1990: XLH883DLX Sportster 883 Deluxe
  • 1987-1990: XLH883HUG Sportster 883 Hugger

Trust Twin Power for reliable engine components that keep your ride running smoothly. Get your Twin Power Rocker Box Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
1986-1987 Harley-Davidson XLH1100 Base
1988-1990 Harley-Davidson XLH1200 Base
1986-1990 Harley-Davidson XLH883 Base
1986-1990 Harley-Davidson XLH883DLX Sportster 883 Deluxe Base
1987-1990 Harley-Davidson XLH883HUG Sportster 883 Hugger Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About TwinPower

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

Watch in action

Premium Rocker Box Gasket Kit for Harley-Davidson XL Models (1986-1990)

Maintain the integrity of your engine with this high-quality Rocker Box Gasket Kit from Twin Power, specifically designed for 1986-1990 Harley-Davidson XL models. Engineered to meet or exceed original equipment specifications, this kit ensures a reliable seal, preventing oil leaks and maintaining optimal engine performance. This gasket set is a direct replacement for Harley-Davidson part number 17030-89, offering a perfect fit and easy installation.

Key Features and Benefits:

  • Direct Fit Replacement: Replaces Harley-Davidson part #17030-89 for seamless integration.
  • Durable Construction: Made from high-quality materials to withstand engine heat and pressure.
  • Leak Prevention: Ensures a tight seal for rocker boxes, preventing oil leaks and maintaining engine cleanliness.
  • Optimized Performance: Helps maintain proper engine compression and performance.
  • Comprehensive Kit: Includes all necessary gaskets for a complete rocker box seal.

Vehicle Fitment:

This gasket kit is compatible with the following Harley-Davidson models:

  • 1986-1987: XLH1100
  • 1988-1990: XLH1200
  • 1986-1990: XLH883
  • 1986-1990: XLH883DLX Sportster 883 Deluxe
  • 1987-1990: XLH883HUG Sportster 883 Hugger

Trust Twin Power for reliable engine components that keep your ride running smoothly. Get your Twin Power Rocker Box Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
1986-1987 Harley-Davidson XLH1100 Base
1988-1990 Harley-Davidson XLH1200 Base
1986-1990 Harley-Davidson XLH883 Base
1986-1990 Harley-Davidson XLH883DLX Sportster 883 Deluxe Base
1987-1990 Harley-Davidson XLH883HUG Sportster 883 Hugger Base

Product Details

Product Description

About TwinPower

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

Watch in action

Premium Rocker Box Gasket Kit for Harley-Davidson XL Models (1986-1990)

Maintain the integrity of your engine with this high-quality Rocker Box Gasket Kit from Twin Power, specifically designed for 1986-1990 Harley-Davidson XL models. Engineered to meet or exceed original equipment specifications, this kit ensures a reliable seal, preventing oil leaks and maintaining optimal engine performance. This gasket set is a direct replacement for Harley-Davidson part number 17030-89, offering a perfect fit and easy installation.

Key Features and Benefits:

  • Direct Fit Replacement: Replaces Harley-Davidson part #17030-89 for seamless integration.
  • Durable Construction: Made from high-quality materials to withstand engine heat and pressure.
  • Leak Prevention: Ensures a tight seal for rocker boxes, preventing oil leaks and maintaining engine cleanliness.
  • Optimized Performance: Helps maintain proper engine compression and performance.
  • Comprehensive Kit: Includes all necessary gaskets for a complete rocker box seal.

Vehicle Fitment:

This gasket kit is compatible with the following Harley-Davidson models:

  • 1986-1987: XLH1100
  • 1988-1990: XLH1200
  • 1986-1990: XLH883
  • 1986-1990: XLH883DLX Sportster 883 Deluxe
  • 1987-1990: XLH883HUG Sportster 883 Hugger

Trust Twin Power for reliable engine components that keep your ride running smoothly. Get your Twin Power Rocker Box Gasket Kit today at GGCRACING!

Vehicle Fitment

Years Make Model Trim
1986-1987 Harley-Davidson XLH1100 Base
1988-1990 Harley-Davidson XLH1200 Base
1986-1990 Harley-Davidson XLH883 Base
1986-1990 Harley-Davidson XLH883DLX Sportster 883 Deluxe Base
1987-1990 Harley-Davidson XLH883HUG Sportster 883 Hugger Base

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