TwinPower Transmission Side Cover Gasket Kit (5 Pk) — 87-06 Harley Big Twin

SKU: TWP043277
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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

TwinPower Transmission Side Cover Gasket Kit - 5 Pack

Maintain the integrity of your Harley-Davidson Big Twin's transmission with this TwinPower Transmission Side Cover Gasket Kit. This pack includes five high-quality gaskets, designed to replace Harley-Davidson part number 36801-87B. Essential for preventing oil leaks and ensuring proper sealing, these gaskets are crucial for the health and performance of your transmission. Whether you're performing routine maintenance, a rebuild, or addressing a leak, this kit provides the necessary components for a reliable seal.

Reliable Sealing for Your Harley Transmission:

  • Direct replacement for Harley-Davidson part 36801-87B.
  • Fits 1987-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna).
  • Ensures a leak-free seal for the transmission side cover.
  • High-quality construction for durability and longevity.
  • Convenient 5-pack for multiple services or future needs.
  • Essential for maintaining transmission fluid integrity.

Proper sealing is critical to prevent contamination and loss of lubricating oil within your transmission. This TwinPower gasket kit is manufactured to exacting standards, ensuring a precise fit and dependable performance. Keep your classic Harley running smoothly by using quality replacement parts. Ideal for mechanics and DIY enthusiasts alike, this kit simplifies the process of ensuring a secure transmission seal. Trust TwinPower for dependable parts for your Harley-Davidson at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2003 Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1995-2006 Harley-Davidson FLHT Electra Glide Standard Base
1987-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
1987-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1997-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1996 Harley-Davidson FLTCUI Tour Glide Ultra Classic Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1995-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
1992 Harley-Davidson FXDC Super Glide Custom Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1994-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1993-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXR Super Glide II Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1987 Harley-Davidson FXRC Low Rider Chrome Base
1987-1995 Harley-Davidson FXRPF Police Base
1987-1992 Harley-Davidson FXRS Low Glide Base
1990-1994 Harley-Davidson FXRS-Conv Low Rider Sport Convertible Base
1987-1992 Harley-Davidson FXRT Sport Glide Base
1987-2006 Harley-Davidson FXST Softail Standard Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1987-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce 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

…and 3 additional fitments. Contact us to confirm yours.

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

TwinPower Transmission Side Cover Gasket Kit - 5 Pack

Maintain the integrity of your Harley-Davidson Big Twin's transmission with this TwinPower Transmission Side Cover Gasket Kit. This pack includes five high-quality gaskets, designed to replace Harley-Davidson part number 36801-87B. Essential for preventing oil leaks and ensuring proper sealing, these gaskets are crucial for the health and performance of your transmission. Whether you're performing routine maintenance, a rebuild, or addressing a leak, this kit provides the necessary components for a reliable seal.

Reliable Sealing for Your Harley Transmission:

  • Direct replacement for Harley-Davidson part 36801-87B.
  • Fits 1987-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna).
  • Ensures a leak-free seal for the transmission side cover.
  • High-quality construction for durability and longevity.
  • Convenient 5-pack for multiple services or future needs.
  • Essential for maintaining transmission fluid integrity.

Proper sealing is critical to prevent contamination and loss of lubricating oil within your transmission. This TwinPower gasket kit is manufactured to exacting standards, ensuring a precise fit and dependable performance. Keep your classic Harley running smoothly by using quality replacement parts. Ideal for mechanics and DIY enthusiasts alike, this kit simplifies the process of ensuring a secure transmission seal. Trust TwinPower for dependable parts for your Harley-Davidson at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2003 Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1995-2006 Harley-Davidson FLHT Electra Glide Standard Base
1987-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
1987-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1997-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1996 Harley-Davidson FLTCUI Tour Glide Ultra Classic Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1995-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
1992 Harley-Davidson FXDC Super Glide Custom Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1994-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1993-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXR Super Glide II Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1987 Harley-Davidson FXRC Low Rider Chrome Base
1987-1995 Harley-Davidson FXRPF Police Base
1987-1992 Harley-Davidson FXRS Low Glide Base
1990-1994 Harley-Davidson FXRS-Conv Low Rider Sport Convertible Base
1987-1992 Harley-Davidson FXRT Sport Glide Base
1987-2006 Harley-Davidson FXST Softail Standard Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1987-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce 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

…and 3 additional fitments. Contact us to confirm yours.

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

TwinPower Transmission Side Cover Gasket Kit - 5 Pack

Maintain the integrity of your Harley-Davidson Big Twin's transmission with this TwinPower Transmission Side Cover Gasket Kit. This pack includes five high-quality gaskets, designed to replace Harley-Davidson part number 36801-87B. Essential for preventing oil leaks and ensuring proper sealing, these gaskets are crucial for the health and performance of your transmission. Whether you're performing routine maintenance, a rebuild, or addressing a leak, this kit provides the necessary components for a reliable seal.

Reliable Sealing for Your Harley Transmission:

  • Direct replacement for Harley-Davidson part 36801-87B.
  • Fits 1987-2006 Harley-Davidson Big Twin models (excluding 2006 Dyna).
  • Ensures a leak-free seal for the transmission side cover.
  • High-quality construction for durability and longevity.
  • Convenient 5-pack for multiple services or future needs.
  • Essential for maintaining transmission fluid integrity.

Proper sealing is critical to prevent contamination and loss of lubricating oil within your transmission. This TwinPower gasket kit is manufactured to exacting standards, ensuring a precise fit and dependable performance. Keep your classic Harley running smoothly by using quality replacement parts. Ideal for mechanics and DIY enthusiasts alike, this kit simplifies the process of ensuring a secure transmission seal. Trust TwinPower for dependable parts for your Harley-Davidson at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-2006 Harley-Davidson FLHR Road King Base
1998-2006 Harley-Davidson FLHRCI Road King Classic Base
1996-1997 Harley-Davidson FLHRI Road King Base
2000-2006 Harley-Davidson FLHRI Road King Base
2004-2006 Harley-Davidson FLHRS Road King Custom Base
2002 Harley-Davidson FLHRSEI Screamin Eagle Road King Base
2003 Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 Base
1987-1993 Harley-Davidson FLHS Electra Glide Sport Base
1995-2006 Harley-Davidson FLHT Electra Glide Standard Base
1987-2005 Harley-Davidson FLHTC Electra Glide Classic Base
1996-2006 Harley-Davidson FLHTCI Electra Glide Classic Base
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
1995-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base
2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base
2006 Harley-Davidson FLHX Street Glide Base
1987-1990 Harley-Davidson FLST Heritage Softail Base
2006 Harley-Davidson FLST Heritage Softail Base
1988-2006 Harley-Davidson FLSTC Heritage Softail Classic Base
2001-2006 Harley-Davidson FLSTCI Heritage Softail Classic Base
1990-2006 Harley-Davidson FLSTF Fat Boy Base
2001-2006 Harley-Davidson FLSTFI Fat Boy Base
1994-1996 Harley-Davidson FLSTN Heritage Softail Special Base
2005-2006 Harley-Davidson FLSTN Softail Deluxe Base
1997-2006 Harley-Davidson FLSTS Heritage Springer Base
2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base
2001-2003 Harley-Davidson FLSTSI Heritage Springer Base
1996 Harley-Davidson FLTCUI Tour Glide Ultra Classic Base
1998-2006 Harley-Davidson FLTR Road Glide Base
1998-2006 Harley-Davidson FLTRI Road Glide Base
1995-2006 Harley-Davidson FXD Dyna Super Glide Base
2006 Harley-Davidson FXDBI Street Bob Base
1992 Harley-Davidson FXDC Super Glide Custom Base
2005 Harley-Davidson FXDC Super Glide Custom Base
2005-2006 Harley-Davidson FXDCI Super Glide Custom Base
2006 Harley-Davidson FXDI Dyna Super Glide Base
1993-2005 Harley-Davidson FXDL Dyna Low Rider Base
2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base
1994-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base
1993-2006 Harley-Davidson FXDWG Dyna Wide Glide Base
2001 Harley-Davidson FXDWG2 Base
2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base
1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base
2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base
1987-1994 Harley-Davidson FXR Super Glide II Base
1999 Harley-Davidson FXR2 Base
1999 Harley-Davidson FXR3 Base
2000 Harley-Davidson FXR4 Base
1987 Harley-Davidson FXRC Low Rider Chrome Base
1987-1995 Harley-Davidson FXRPF Police Base
1987-1992 Harley-Davidson FXRS Low Glide Base
1990-1994 Harley-Davidson FXRS-Conv Low Rider Sport Convertible Base
1987-1992 Harley-Davidson FXRT Sport Glide Base
1987-2006 Harley-Davidson FXST Softail Standard Base
1999-2006 Harley-Davidson FXSTB Night Train Base
2001-2006 Harley-Davidson FXSTBI Night Train Base
1987-1999 Harley-Davidson FXSTC Softail Custom Base
2000-2006 Harley-Davidson FXSTD Softail Deuce 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

…and 3 additional fitments. Contact us to confirm yours.

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