Twin Power Transmission Top Cover Gasket Kit — Fits 1999-2006 Harley-Davidson Big Twin & 1999-2006 FLHT

SKU: TWP043282
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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.

Watch in action

Twin Power Transmission Top Cover Gasket Kit

Ensure a reliable and leak-free seal for your Harley-Davidson's transmission with the Twin Power Transmission Top Cover Gasket Kit. This comprehensive kit is designed to replace Harley-Davidson part number 34904-86C and is specifically engineered for 1999-2006 Big Twin models and 1999-2006 FLHT models. This 5-pack ensures you have replacements ready when needed.

Premium Quality & Fitment:

  • Exact Replacement: Directly replaces H-D part number 34904-86C, ensuring perfect fitment for compatible models.
  • Durable Materials: Constructed from high-quality gasket material designed to withstand transmission fluid and operational stresses.
  • Leak Prevention: Provides a superior seal to prevent oil leaks, maintaining proper lubrication and protecting your transmission.
  • Comprehensive Kit: Includes 5 individual gaskets, offering excellent value and ensuring you have spares on hand.
  • Model Specific: Tailored for 1999-2006 Harley-Davidson Big Twin (including FLHR, FLHT, FLST, FXST families) and 1999-2006 FLHT models.

A leaking transmission cover gasket can lead to low oil levels, potential transmission damage, and messy oil spots. This Twin Power gasket kit offers a cost-effective solution to maintain the integrity of your Harley-Davidson's transmission system. It's the ideal choice for routine maintenance or repairs, ensuring your ride remains dependable.

Trust Twin Power for high-quality replacement parts that meet or exceed OEM specifications. Keep your Harley-Davidson running smoothly and prevent costly damage with this essential transmission gasket kit. Find this and other vital motorcycle parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1999 Harley-Davidson FXSTC Softail Custom Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
1999-2006 Harley-Davidson FXSTS Springer Softail 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

Twin Power Transmission Top Cover Gasket Kit

Ensure a reliable and leak-free seal for your Harley-Davidson's transmission with the Twin Power Transmission Top Cover Gasket Kit. This comprehensive kit is designed to replace Harley-Davidson part number 34904-86C and is specifically engineered for 1999-2006 Big Twin models and 1999-2006 FLHT models. This 5-pack ensures you have replacements ready when needed.

Premium Quality & Fitment:

  • Exact Replacement: Directly replaces H-D part number 34904-86C, ensuring perfect fitment for compatible models.
  • Durable Materials: Constructed from high-quality gasket material designed to withstand transmission fluid and operational stresses.
  • Leak Prevention: Provides a superior seal to prevent oil leaks, maintaining proper lubrication and protecting your transmission.
  • Comprehensive Kit: Includes 5 individual gaskets, offering excellent value and ensuring you have spares on hand.
  • Model Specific: Tailored for 1999-2006 Harley-Davidson Big Twin (including FLHR, FLHT, FLST, FXST families) and 1999-2006 FLHT models.

A leaking transmission cover gasket can lead to low oil levels, potential transmission damage, and messy oil spots. This Twin Power gasket kit offers a cost-effective solution to maintain the integrity of your Harley-Davidson's transmission system. It's the ideal choice for routine maintenance or repairs, ensuring your ride remains dependable.

Trust Twin Power for high-quality replacement parts that meet or exceed OEM specifications. Keep your Harley-Davidson running smoothly and prevent costly damage with this essential transmission gasket kit. Find this and other vital motorcycle parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1999 Harley-Davidson FXSTC Softail Custom Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
1999-2006 Harley-Davidson FXSTS Springer Softail 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

Twin Power Transmission Top Cover Gasket Kit

Ensure a reliable and leak-free seal for your Harley-Davidson's transmission with the Twin Power Transmission Top Cover Gasket Kit. This comprehensive kit is designed to replace Harley-Davidson part number 34904-86C and is specifically engineered for 1999-2006 Big Twin models and 1999-2006 FLHT models. This 5-pack ensures you have replacements ready when needed.

Premium Quality & Fitment:

  • Exact Replacement: Directly replaces H-D part number 34904-86C, ensuring perfect fitment for compatible models.
  • Durable Materials: Constructed from high-quality gasket material designed to withstand transmission fluid and operational stresses.
  • Leak Prevention: Provides a superior seal to prevent oil leaks, maintaining proper lubrication and protecting your transmission.
  • Comprehensive Kit: Includes 5 individual gaskets, offering excellent value and ensuring you have spares on hand.
  • Model Specific: Tailored for 1999-2006 Harley-Davidson Big Twin (including FLHR, FLHT, FLST, FXST families) and 1999-2006 FLHT models.

A leaking transmission cover gasket can lead to low oil levels, potential transmission damage, and messy oil spots. This Twin Power gasket kit offers a cost-effective solution to maintain the integrity of your Harley-Davidson's transmission system. It's the ideal choice for routine maintenance or repairs, ensuring your ride remains dependable.

Trust Twin Power for high-quality replacement parts that meet or exceed OEM specifications. Keep your Harley-Davidson running smoothly and prevent costly damage with this essential transmission gasket kit. Find this and other vital motorcycle parts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2006 Harley-Davidson FLHR Road King Base
1999-2006 Harley-Davidson FLHRCI Road King Classic Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
1999-2006 Harley-Davidson FLHT Electra Glide Standard Base
1999-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2006 Harley-Davidson FLHX Street Glide Base
2006 Harley-Davidson FLST Heritage Softail Base
1999-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1999-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
1999-2006 Harley-Davidson FLTR Road Glide Base
1999-2006 Harley-Davidson FLTRI Road Glide Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1999 Harley-Davidson FXSTC Softail Custom Base
2001-2006 Harley-Davidson FXSTDI Softail Deuce Base
2003-2004 Harley-Davidson FXSTDSE Screamin Eagle Softail Deuce Base
2001-2006 Harley-Davidson FXSTI Softail Standard Base
1999-2006 Harley-Davidson FXSTS Springer Softail Base

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