Description
ARP Bolts Evolution/Twin Cam Head Bolt Kit
- Quality hex-head, hardened stainless steel bolts with a show polished corrosion-resistant finish
- Tensile strength rated @ 180,000 psi; superior and stronger than OEM and grade 8 fasteners
- Precision J-form threads for optimum engagement, to prevent galling and promote more consistent torque loading
- Wide under head flange bolts and hardened chamfered washers provide even load distribution for optimum sealing of surfaces to prevent leaks
- Eliminate thread problems associated with chromed and soft stainless steel hardware
- Manufactured by ARP
- Made in the U.S.A.
Fitment Guide
| 2018-2019 | Harley-Davidson | Iron 1200 XLNS | – | – |
| 2018-2019 | Harley-Davidson | Forty-Eight Special XLXS | – | – |
| 2016-2019 | Harley-Davidson | 1200 Roadster XLCX | – | – |
| 2016-2017 | Harley-Davidson | Fat Boy S FLSTFBS | – | – |
| 2016-2017 | Harley-Davidson | CVO Pro Street Breakout FXSE | – | – |
| 2016-2017 | Harley-Davidson | Low Rider S FXDLS | – | – |
| 2016-2017 | Harley-Davidson | Softail Slim S FLSS | – | – |
| 2015-2016 | Harley-Davidson | Electra Glide Ultra Limited Low FLHTKL | – | – |
| 2015-2016 | Harley-Davidson | Road Glide Special FLTRXS | – | – |
| 2014-2017 | Harley-Davidson | SuperLow 1200 XLT | – | – |
| 2014-2016 | Harley-Davidson | Electra Glide Ultra Classic Low FLHTCUL | – | – |
| 2014-2016 | Harley-Davidson | Street Glide Special FLHXS | – | – |
| 2014-2016 | Harley-Davidson | CVO Electra Glide Ultra Limited FLHTKSE | – | – |
| 2014-2016 | Harley-Davidson | Road King Police FLHP | – | – |
| 2014-2015 | Harley-Davidson | CVO Softail Deluxe FLSTNSE | – | – |
| 2014 | Harley-Davidson | CVO Road King FLHRSE | – | – |
| 2013-2017 | Harley-Davidson | Breakout FXSB | – | – |
| 2013-2014 | Harley-Davidson | CVO Breakout FXSBSE | – | – |
| 2013 | Harley-Davidson | CVO Road King FLHRSE5 | – | – |
| 2013 | Harley-Davidson | CVO Road Glide Custom FLTRXSE2 | – | – |
| 2013 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE8 | – | – |
| 2012-2017 | Harley-Davidson | Softail Slim FLS | – | – |
| 2012-2016 | Harley-Davidson | Seventy-Two XLV | – | – |
| 2012-2016 | Harley-Davidson | Switchback FLD | – | – |
| 2012 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE7 | – | – |
| 2012 | Harley-Davidson | CVO Road Glide Custom FLTRXSE | – | – |
| 2012 | Harley-Davidson | CVO Softail Convertible FLSTSE3 | – | – |
| 2012 | Harley-Davidson | CVO Street Glide FLHXSE3 | – | – |
| 2011-2019 | Harley-Davidson | 883 SuperLow XLL | – | – |
| 2011-2013, 2016 | Harley-Davidson | Road Glide Ultra FLTRU | – | – |
| 2011-2013 | Harley-Davidson | Blackline FXS | – | – |
| 2011, 2015-2016 | Harley-Davidson | CVO Road Glide Ultra FLTRUSE | – | – |
| 2011 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE6 | – | – |
| 2011 | Harley-Davidson | CVO Softail Convertible FLSTSE2 | – | – |
| 2011 | Harley-Davidson | CVO Street Glide FLHXSE2 | – | – |
| 2010-2019 | Harley-Davidson | Forty-Eight XLX | – | – |
| 2010-2016 | Harley-Davidson | Electra Glide Ultra Limited FLHTK | – | – |
| 2010-2013, 2015-2016 | Harley-Davidson | Road Glide Custom FLTRX | – | – |
| 2010, 2015-2016 | Harley-Davidson | CVO Street Glide FLHXSE | – | – |
| 2010 | Harley-Davidson | CVO Softail Convertible FLSTSE | – | – |
| 2010 | Harley-Davidson | CVO Fat Bob FXDFSE2 | – | – |
| 2010 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE5 | – | – |
| 2009-2019 | Harley-Davidson | Iron 883 XLN | – | – |
| 2009-2017 | Harley-Davidson | Fat Boy Lo FLSTFB | – | – |
| 2009-2013 | Harley-Davidson | Road King Classic FLHRC | – | – |
| 2009-2012 | Harley-Davidson | Sportster 1200 X XR | – | – |
| 2009-2012 | Harley-Davidson | Sportster 1200 XR | – | – |
| 2009 | Harley-Davidson | CVO Electra Glide Ultra Classic FLHTCUSE4 | – | – |
| 2009 | Harley-Davidson | CVO Fat Bob FXDFSE | – | – |
| 2009 | Harley-Davidson | CVO Softail Springer FXSTSSE3 | – | – |
| 2009 | Harley-Davidson | CVO Road Glide FLTRSE3 | – | – |
| 2008-2017 | Harley-Davidson | Fat Bob FXDF | – | – |
| 2008-2011 | Harley-Davidson | Softail Cross Bones FLSTSB | – | – |
| 2008 | Harley-Davidson | Screamin’ Eagle Softail Springer FXSTSSE2 | – | – |
| 2008 | Harley-Davidson | Screamin’ Eagle Dyna FXDSE2 | – | – |
| 2008 | Harley-Davidson | Screamin’ Eagle Electra Glide Ultra Classic FLHTCUSE3 | – | – |
| 2008 | Harley-Davidson | Screamin’ Eagle Road King FLHRSE4 | – | – |
| 2007-2012 | Harley-Davidson | 1200 Nightster XLN | – | – |
| 2007-2011 | Harley-Davidson | Softail Rocker C FXCWC | – | – |
| 2007-2010 | Harley-Davidson | Softail Rocker FXCW | – | – |
| 2007-2010 | Harley-Davidson | Softail Custom EFI FXSTC | – | – |
| 2007-2009 | Harley-Davidson | 883 EFI XL | – | – |
| 2007 | Harley-Davidson | Screamin’ Eagle Softail Springer FXSTSSE | – | – |
| 2007 | Harley-Davidson | Screamin’ Eagle Electra Glide Ultra Classic FLHTCUSE2 | – | – |
| 2007 | Harley-Davidson | Sportster 1200 XL 50 | – | – |
| 2007 | Harley-Davidson | Screamin’ Eagle Road King FLHRSE3 | – | – |
| 2007 | Harley-Davidson | Screamin’ Eagle Dyna FXDSE | – | – |
| 2006-2017 | Harley-Davidson | Street Bob FXDB | – | – |
| 2006-2016 | Harley-Davidson | Street Glide EFI FLHX | – | – |
| 2006-2011 | Harley-Davidson | 1200 Low EFI XLL | – | – |
| 2006-2010 | Harley-Davidson | 883 Low EFI XLL | – | – |
| 2006-2008 | Harley-Davidson | 1200 Roadster EFI XLR | – | – |
| 2006 | Harley-Davidson | Softail Heritage EFI FLSTI | – | – |
| 2006 | Harley-Davidson | Super Glide FXD35 | – | – |
| 2006 | Harley-Davidson | Screamin’ Eagle Fat Boy FLSTFSE2 | – | – |
| 2006 | Harley-Davidson | Screamin’ Eagle Electra Glide Ultra Classic FLHTCUSE | – | – |
| 2006 | Harley-Davidson | Street Glide FLHX | – | – |
| 2006 | Harley-Davidson | 1200 Low XLL | – | – |
| 2005-2017 | Harley-Davidson | Softail Deluxe EFI FLSTNI | – | – |
| 2005-2014 | Harley-Davidson | Super Glide Custom EFI FXDCI | – | – |
| 2005-2007 | Harley-Davidson | Softail Springer Classic EFI FLSTSCI | – | – |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSC | – | – |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTN | – | – |
| 2005-2006 | Harley-Davidson | 883 Low XLL | – | – |
| 2005 | Harley-Davidson | Super Glide Custom FXDC | – | – |
| 2005 | Harley-Davidson | Screamin’ Eagle Electra Glide FLHTCSE2 | – | – |
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF | – | – |
| 2005 | Harley-Davidson | Screamin’ Eagle Fat Boy FLSTFSE | – | – |
| 2004-2010 | Harley-Davidson | Super Glide EFI FXDI | – | – |
| 2004-2009, 2014-2017 | Harley-Davidson | Low Rider EFI FXDL | – | – |
| 2004-2007 | Harley-Davidson | Road King Custom EFI FLHRS | – | – |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRS | – | – |
| 2004-2006 | Harley-Davidson | 1200 Roadster XLR | – | – |
| 2004-2006 | Harley-Davidson | 883 XL | – | – |
| 2004-2005 | Harley-Davidson | Super Glide Sport EFI FXDXI | – | – |
| 2004 | Harley-Davidson | Screamin’ Eagle Deuce FXSTDSE2 | – | – |
| 2004 | Harley-Davidson | Screamin’ Eagle Electra Glide FLHTCSE | – | – |
| 2003 | Harley-Davidson | Screamin’ Eagle Deuce FXSTDSE | – | – |
| 2003 | Harley-Davidson | Screamin’ Eagle Road King FLHRSE-I2 | – | – |
| 2002-2019 | Harley-Davidson | 1200 Custom EFI XLC | – | – |
| 2002-2003, 2011-2017 | Harley-Davidson | 1200 XLCP | – | – |
| 2002-2003, 2005-2007 | Harley-Davidson | 883 Roadster EFI XLR | – | – |
| 2002-2003, 2005-2007 | Harley-Davidson | 883 Roadster XLR | – | – |
| 2002 | Harley-Davidson | Wide Glide FXDWG3 | – | – |
| 2002 | Harley-Davidson | Screamin’ Eagle Road King FLHRSE-I | – | – |
| 2001-2017 | Harley-Davidson | Softail Heritage Classic EFI FLSTCI | – | – |
| 2001-2017 | Harley-Davidson | Softail Fat Boy EFI FLSTFI | – | – |
| 2001-2012 | Harley-Davidson | Softail Standard EFI FXSTI | – | – |
| 2001-2009 | Harley-Davidson | Softail Night Train EFI FXSTBI | – | – |
| 2001-2007 | Harley-Davidson | Softail Deuce EFI FXSTDI | – | – |
| 2001-2006 | Harley-Davidson | Softail Springer EFI FXSTSI | – | – |
| 2001-2003 | Harley-Davidson | Super Glide T-Sport FXDXT | – | – |
| 2001-2003 | Harley-Davidson | Softail Heritage Springer EFI FLSTSI | – | – |
| 2001 | Harley-Davidson | Wide Glide FXDWG2 | – | – |
| 2001 | Harley-Davidson | Screamin’ Eagle Road Glide FLTRSE-I2 | – | – |
| 2000-2009 | Harley-Davidson | Electra Glide Standard EFI FLHTI | – | – |
| 2000-2008, 2010-2017 | Harley-Davidson | Wide Glide EFI FXDWGI | – | – |
| 2000-2006 | Harley-Davidson | Softail Deuce FXSTD | – | – |
| 2000 | Harley-Davidson | Screamin’ Eagle Road Glide FLTRSE-I | – | – |
| 1999-2009 | Harley-Davidson | 883 Custom EFI XLC | – | – |
| 1999-2006 | Harley-Davidson | Softail Night Train FXSTB | – | – |
| 1999-2005 | Harley-Davidson | Super Glide Sport FXDX | – | – |
| 1999 | Harley-Davidson | FXR 2 | – | – |
| 1999 | Harley-Davidson | FXR 3 | – | – |
| 1998-2009 | Harley-Davidson | Road Glide EFI FLTR | – | – |
| 1998-2006 | Harley-Davidson | Road Glide FLTR | – | – |
| 1998-2006 | Harley-Davidson | 883 Custom XLC | – | – |
| 1997-2003 | Harley-Davidson | Softail Heritage Springer FLSTS | – | – |
| 1996-2006 | Harley-Davidson | 1200 Custom XLC | – | – |
| 1996-2003 | Harley-Davidson | 1200 Sport XLS | – | – |
| 1996 | Harley-Davidson | Tour Glide Ultra Classic EFI FLTCU | – | – |
| 1995-2016 | Harley-Davidson | Electra Glide Ultra Classic EFI FLHTCUI | – | – |
| 1995-2016 | Harley-Davidson | Road King EFI FLHR | – | – |
| 1995-2016 | Harley-Davidson | Electra Glide Police FLHTPI | – | – |
| 1995-2013 | Harley-Davidson | Electra Glide Classic EFI FLHTCI | – | – |
| 1995-2013 | Harley-Davidson | Road King Classic EFI FLHRC | – | – |
| 1995-2006 | Harley-Davidson | Super Glide FXD | – | – |
| 1995-2000 | Harley-Davidson | Dyna Convertible FXDS-CONV | – | – |
| 1995-1997 | Harley-Davidson | Softail Bad Boy FXSTSB | – | – |
| 1994-2006 | Harley-Davidson | Road King FLHR | – | – |
| 1994-1996 | Harley-Davidson | Softail Heritage Special FLSTN | – | – |
| 1993-2006 | Harley-Davidson | Low Rider FXDL | – | – |
| 1993-2006 | Harley-Davidson | Wide Glide FXDWG | – | – |
| 1993 | Harley-Davidson | Softail Nostalgia FLSTN | – | – |
| 1992-2003 | Harley-Davidson | 883 Hugger XLH | – | – |
| 1992-2003 | Harley-Davidson | Sportster 883 XLH | – | – |
| 1992-2003 | Harley-Davidson | Sportster 1200 XLH | – | – |
| 1992-1995 | Harley-Davidson | 883 Deluxe XLH | – | – |
| 1992 | Harley-Davidson | Dyna Daytona FXDB | – | – |
| 1992 | Harley-Davidson | Dyna Glide Custom FXDC | – | – |
| 1991 | Harley-Davidson | Dyna Sturgis FXDB | – | – |
| 1990-2006 | Harley-Davidson | Softail Fat Boy FLSTF | – | – |
| 1989-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU | – | – |
| 1989-1996 | Harley-Davidson | Tour Glide Ultra Classic FLTCU | – | – |
| 1988-2006 | Harley-Davidson | Softail Springer FXSTS | – | – |
| 1987-1993 | Harley-Davidson | Electra Glide Sport FLHS | – | – |
| 1986-2006 | Harley-Davidson | Softail Heritage Classic FLSTC | – | – |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC | – | – |
| 1986-1990, 2006 | Harley-Davidson | Softail Heritage FLST | – | – |
| 1985-2006 | Harley-Davidson | Electra Glide Classic FLHTC | – | – |
| 1985-2006 | Harley-Davidson | Electra Glide Police FLHTP | – | – |
| 1985-2006 | Harley-Davidson | Softail Standard FXST | – | – |
| 1985-1994 | Harley-Davidson | Tour Glide Classic FLTC | – | – |
| 1985-1987, 1995-2006 | Harley-Davidson | Electra Glide Standard FLHT | – | – |
| 1985-1986 | Harley-Davidson | Tour Glide FLT | – | – |
| 1985 | Harley-Davidson | Electra Glide Special FLHX | – | – |
| 1985 | Harley-Davidson | Electra Glide FLH |
History & Background on ARP
They say that to be successful you must identify a need and satisfy it. Back the early 1970s, racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.
At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener making experience for a leading aerospace subcontractor and founded ARP (Automotive Racing Products).
In the ensuing years, the firm has grown from what was literally a backyard garage workshop into a highly diversified manufacturer with seven operational entities in Southern California with a combined area in excess of 200,000 square feet. These include forging, heat-treating, machining, quality control finishing and packaging/warehousing facilities in Santa Paula and Ventura, California.
There is even a unique racing-themed restaurant at the main Santa Paula facility – called “ Hozy’s Grill” – which is open to the public.
Today, ARP’s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.
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