# Wiseco HD Twin Cam 88 Big Bore 3895VMF (AP) Piston The Wiseco team has led the powersports performance industry through eras and technological advancements, including the rise of high-performance 4-stroke engines. Today, Wiseco's forged 4-stroke pistons are engineered for specific engine applications and manufactured to the tightest tolerances, offering unparalleled performance and strength. Wiseco 4-stroke pistons are proven across all levels of riding and are available for a wide range of models. - Improved tensile strength of forged material optimizes strength and service life - Optimized compression ratio to fit your build and performance goals - Designed and built for each specific 4-stroke powersports engine - Designed and built specifically for each V-Twin engine platform - Dedicated forgings allow for optimized strength-to-weight ratio - Includes high-quality piston rings, wrist pin(s), and circlips - Engineered, forged, and machined in the USA in Mentor, OH - Wrist pin, rings and circlips included - 3.895 in. Bore, 10.5:1 CR This Part Fits: Year Make Model Submodel 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 2004-2006 Harley-Davidson FLHRSI 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 2000-2001,2004 Harley-Davidson FLHTCSE Screamin Eagle Electra Glide Base 1999-2006 Harley-Davidson FLHTCUI Electra Glide Ultra Classic Base 2003-2006 Harley-Davidson FLHTI Electra Glide Standard Base 2006 Harley-Davidson FLHX Street Glide Base 2006 Harley-Davidson FLHXI 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 1999-2006 Harley-Davidson FLSTF Fat Boy Base 2001-2006 Harley-Davidson FLSTFI Fat Boy Base 2006 Harley-Davidson FLSTI Heritage Softail Base 2005-2006 Harley-Davidson FLSTN Softail Deluxe Base 2005-2006 Harley-Davidson FLSTNI Softail Deluxe Base 1999-2003 Harley-Davidson FLSTS Heritage Springer Base 2005-2006 Harley-Davidson FLSTSC Softail Springer Classic Base 2005-2006 Harley-Davidson FLSTSCI Softail Springer Classic Base 2001-2003 Harley-Davidson FLSTSI Heritage Springer Base 1999-2006 Harley-Davidson FLTR Road Glide Base 1999-2006 Harley-Davidson FLTRI Road Glide Base 1999-2006 Harley-Davidson FXD Dyna Super Glide Base 2006 Harley-Davidson FXDBI Street Bob Base 2005 Harley-Davidson FXDC Super Glide Custom Base 2005-2006 Harley-Davidson FXDCI Super Glide Custom Base 2004-2006 Harley-Davidson FXDI Dyna Super Glide Base 2006 Harley-Davidson FXDI35 Dyna 35th Anniversary Super Glide Base 1999-2005 Harley-Davidson FXDL Dyna Low Rider Base 2004-2006 Harley-Davidson FXDLI Dyna Low Rider Base 1999-2000 Harley-Davidson FXDS-Conv Dyna Convertible Base 1999-2006 Harley-Davidson FXDWG Dyna Wide Glide Base 2001 Harley-Davidson FXDWG2 CVO Dyna Wide Glide Base 2002 Harley-Davidson FXDWG3 CVO Dyna Wide Glide Base 2004-2006 Harley-Davidson FXDWGI Dyna Wide Glide Base 1999-2005 Harley-Davidson FXDX Dyna Super Glide Sport Base 2004-2005 Harley-Davidson FXDXI Dyna Super Glide Sport Base 2001-2003 Harley-Davidson FXDXT Dyna Super Glide T-Sport Base 1999 Harley-Davidson FXR2 Base 1999 Harley-Davidson FXR3 Base 2000 Harley-Davidson FXR4 Base 1999-2006 Harley-Davidson FXST Softail Standard Base 1999-2006 Harley-Davidson FXSTB Night Train Base 2001-2006 Harley-Davidson FXSTBI Night Train Base 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 1999-2006 Harley-Davidson FXSTS Springer Softail Base 2001-2006 Harley-Davidson FXSTSI Springer Softail Base ## Details - **Price:** 932.33 CAD - **Vendor:** Wiseco - **Type:** Piston Sets - Powersports ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 932.33 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package - Photo - out of package --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/wiseco-hd-twin-cam-88-big-bore-3895vmf-ap-piston) > Updated: 2026-07-14