Arlen Ness Radius Oil Pressure Gauge Kit For Harley Twin Cam 1999-2017
Arlen Ness Radius Oil Pressure Gauge Kit: Essential Monitoring for Twin Cam Models
Take the guesswork out of your engine’s vitals with the Arlen Ness Radius Oil Pressure Gauge Kit. Specifically engineered for 1999–2017 Harley-Davidson Twin Cam engines, this kit is a vital Harley-Davidson maintenance upgrade for the modern V-Twin rider. While factory dash lights only warn you when pressure is dangerously low, this mechanical gauge provides a real-time, numerical readout of your oiling system’s performance. Whether you are navigating heavy traffic on a Street Glide or touring the coast on a Heritage Softail, Arlen Ness provides the data you need to ensure your V-Twin performance remains at its peak.
Signature Radius Billet Design
Arlen Ness is world-renowned for transforming functional components into works of art. This kit features a precision-machined billet aluminum housing with the iconic “Radius” styling, finished in a mirror-like show chrome. The bracket is designed to mount seamlessly to the rear rocker box, positioning the gauge perfectly for a quick glance without distracting you from the road. This chassis styling upgrade replaces the industrial look of stock hardware with a custom, polished aesthetic that flows with the lines of your Road King, Dyna, or Softail.
Liquid-Filled Accuracy and Durability
The high-vibration environment of a large-displacement Twin Cam 88, 96, or 103 engine can make standard gauges difficult to read. The Arlen Ness gauge is liquid-filled with high-viscosity silicone to dampen internal movement and protect the delicate internals. This dampening effect keeps the needle rock-steady, providing a flicker-free reading even at highway speeds. The easy-to-read gauge face is protected by a weather-sealed lens, ensuring chassis reliability and visibility in all riding conditions, from desert heat to coastal rain.
High-Pressure Stainless Steel Plumbing
Reliability is built into every detail of this Arlen Ness oil pressure kit. The assembly includes a braided stainless steel oil line that is far superior to the plastic tubing found in entry-level kits. This high-tensile line is heat-resistant and prevents expansion under pressure, ensuring the most accurate reading reaches the gauge. The kit comes complete with all necessary fittings and chrome mounting hardware, providing a professional “bolt-on” Stage 1 styling upgrade that requires no permanent engine modifications.
Comprehensive Twin Cam Fitment (1999–2017)
This radius gauge kit is specifically tailored for the Twin Cam engine architecture. Confirmed fitment includes:
- Touring Series: Street Glide, Road Glide, Road King, and Electra Glide (1999–2016).
- Softail Series: Fat Boy, Heritage Classic, Breakout, and Slim (2000–2017).
- Dyna Series: Street Bob, Low Rider, Wide Glide, and Fat Bob (1999–2017).
- Note: Specifically for Twin Cam engines. Not compatible with Milwaukee-Eight (M8) or Evolution models.
The Legacy of Arlen Ness Custom Parts
For over five decades, Arlen Ness has been a pioneer in the aftermarket Harley parts industry. Their components are trusted by professional builders worldwide for their perfect balance of form and function. By choosing the Radius Oil Pressure Gauge, you are adding a piece of motorcycle history to your build. Arlen Ness products are designed to withstand the test of time, ensuring that your custom Harley project remains as reliable as it is beautiful.
Installation and Care Tips
For a leak-free installation, we recommend using a small amount of high-quality thread sealant on the oil line fittings. This kit is the perfect companion to a Harley-Davidson service interval, such as an oil and filter change. To keep the chrome finish looking its best against the heat of the engine, wipe the housing down periodically with a soft cloth and a non-abrasive chrome polish. Ensure the oil line is routed away from direct contact with cylinder fins to maintain maximum airflow and cooling.
Monitor your engine with confidence and style. Order the Arlen Ness Radius Oil Pressure Gauge Kit today for a secure, custom ride!
Arlen Ness Radius Oil Pressure Gauge Kit For Harley Twin Cam
Features:
A clean way to mount an oil pressure gauge on your Twin Cam Big Twin engine and allows the rider to constantly monitor the engines oil pressure
CNC-machined from aluminum
Oil gauge features a stainless steel housing and glass lens and is also filled with vibration isolating glycerin for clear viewing in all riding situations
Complete kit includes 60 lb. black face liquid gauge with the Ness shield logo, chrome brackets, chrome housing cone, stainless steel hose and chrome hardware
Kit will accept slightly larger gauges if the cone is not used
| Product Style | American-twin Item # | Catalog Number | Store Sku | MFR. Product # | Availability |
|---|---|---|---|---|---|
| Black | 90755 | 712-679 | 15-675 | In Stock: Ships within 24 hours | |
| Chrome | 90807 | 740-495 | 15-658 | In Stock: Ships within 24 hours |
Fitment Notes & Exceptions
Fits most 1999-Up Twin Cam models except:
Will not fit Touring models with stock pressure gauge
Will not fit Milwaukee 8, Evo or Sportster models
This Product Fits
Harley Davidson
Dyna Convertible FXDS 1999, 2000
Dyna Fat Bob CVO/SE FXDFSE 2009, 2010
Dyna Fat Bob FXDF 2008-2017
Dyna Low Rider FXDL/I 1999-2017
Dyna Low Rider S FXDLS 2016, 2017
Dyna Street Bob FXDB/I 2006-2017
Dyna Super Glide Custom FXDC/I 2005-2014
Dyna Super Glide CVO/SE FXDSE 2007
Dyna Super Glide CVO/SE FXDSE2 2008
Dyna Super Glide FXD/I 1999-2010
Dyna Super Glide Sport FXDX 1999-2005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Switchback FLD 2012, 2013, 2014, 2015, 2016
Dyna Wide Glide CVO/SE FXDWG2 2001
Dyna Wide Glide CVO/SE FXDWG3 2002
Dyna Wide Glide FXDWG/I 1999-2017
Electra Glide Classic FLHTC/I 1999-2013
Electra Glide CVO/SE FLHTCSE 2004
Electra Glide CVO/SE FLHTCSE2 2005
Electra Glide Standard FLHT/I 1999-2009
Electra Glide Ultra Classic FLHTCU/I 1999-2016
Electra Glide Ultra Classic Low FLHTCUL 2015, 2016
Electra Glide Ultra Limited CVO/SE FLHTKSE 2014, 2015, 2016
Electra Glide Ultra Limited FLHTK 2010-2016
Electra Glide Ultra Limited Low FLHTKL 2015, 2016
Freewheeler FLRT 2015, 2016
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide CVO/SE FLTRSE3 2009
Road Glide CVO/SE FLTRSEI2 2001
Road Glide CVO/SE FLTRXSE 2012, 2013
Road Glide FLTR/I 1999-2009
Road Glide FLTRX 2015, 2016
Road Glide SE FLTRSEI 2000
Road Glide Special FLTRXS 2015, 2016
Road Glide Ultra CVO/SE FLTRUSE 2011, 2015, 2016
Road Glide Ultra FLTRU 2011, 2012, 2013, 2016
Road King Classic FLHRC/I 1999-2013
Road King Custom FLHRS/I 2004, 2005, 2006, 2007
Road King CVO/SE FLHRSE3 2007
Road King CVO/SE FLHRSE4 2008
Road King CVO/SE FLHRSE5 2013
Road King CVO/SE FLHRSE6 2014
Road King CVO/SE FLHRSEI 2002
Road King CVO/SE FLHRSEI2 2003
Road King FLHR/I 1999-2016
Softail Blackline FXS 2011, 2012, 2013
Softail Breakout CVO/SE FXSBSE 2013, 2014
Softail Breakout FXSB 2013, 2014, 2015, 2016, 2017
Softail Convertible CVO/SE FLSTSE 2010
Softail Convertible CVO/SE FLSTSE2 2011
Softail Convertible CVO/SE FLSTSE3 2012
Softail Cross Bones Springer FLSTSB 2008, 2009, 2010, 2011
Softail Custom FXSTC/I 2007, 2008, 2009, 2010
Softail Deluxe CVO/SE FLSTNSE 2014, 2015
Softail Deluxe FLSTN/I 2005-2017
Softail Deuce CVO/SE FXSTDSE 2003
Softail Deuce CVO/SE FXSTDSE2 2004
Softail Deuce FXSTD/I 2000-2007
Softail Fat Boy CVO/SE FLSTFSE 2005
Softail Fat Boy CVO/SE FLSTFSE2 2006
Softail Fat Boy FLSTF/I 2000-2017
Softail Fat Boy Lo FLSTFB 2010-2016
Softail Fat Boy S FLSTFBS 2016, 2017
Softail Heritage Classic FLSTC/I 2000-2017
Softail Heritage FLST/I 2006
Softail Heritage Springer FLSTS/I 2000, 2001, 2002, 2003
Softail Night Train FXSTB/I 2000-2009
Softail Pro Street Breakout CVO/SE FXSE 2016, 2017
Softail Rocker C FXCWC 2007, 2008, 2009, 2010, 2011
Softail Rocker FXCW 2008, 2009, 2010, 2011
Softail Slim FLS 2012-2017
Softail Slim S FLSS 2016, 2017
Softail Springer Classic FLSTSC/I 2005, 2006, 2007
Softail Springer CVO/SE FXSTSSE 2007
Softail Springer CVO/SE FXSTSSE2 2008
Softail Springer CVO/SE FXSTSSE3 2009
Softail Springer FXSTS/I 2000-2006
Softail Standard FXST/I 2000-2012
Street Glide CVO/SE FLHXSE 2010, 2015, 2016
Street Glide CVO/SE FLHXSE2 2011
Street Glide CVO/SE FLHXSE3 2012
Street Glide FLHX/I 2006-2016
Street Glide Special FLHXS 2014, 2015, 2016
Tri Glide Ultra Classic FLHTCUTG 2014, 2015, 2016
Ultra Classic Electra Glide CVO/SE FLHTCUSE2 2007
Ultra Classic Electra Glide CVO/SE FLHTCUSE3 2008
Ultra Classic Electra Glide CVO/SE FLHTCUSE4 2009
Ultra Classic Electra Glide CVO/SE FLHTCUSE5 2010
Ultra Classic Electra Glide CVO/SE FLHTCUSE6 2011
Ultra Classic Electra Glide CVO/SE FLHTCUSE7 2012
Ultra Classic Electra Glide CVO/SE FLHTCUSE8 2013
