The billet vented dipstick vents excessive crankcase pressure from the oil tank through a PCV-style breather. It uses an oil separator system with a perforated disc, a replaceable filter element and an umbrella flapper valve to reduce blowby and improve engine smoothness. 🛠️🛢️
Two venting-style options are included: option 1 — 1/8 NPT breather fitting with an internal porous filter element; option 2 — quick-disconnect coupler with rubber hose and filter element. There are two ways to read oil level: Full Hot Stand (FHS) with the bike on the jiffy stand, or Full Hot Upright (FHU) with the bike upright and level. The oil pickup port is on the right side of the engine; idling or warming on the kickstand can naturally fill the case and skew the reading.
Testing shows decreased engine oil sump levels, smoother revving, increased MPG and reduced blowby. The unit screws into the factory oil fill spout as a direct replacement, removes unwanted blowby buildup in the oil tank, and is made in the USA. This dipstick does get hot; use a glove when checking oil level.
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Road King | Touring | 1994 | |
| Harley Davidson | Road King | Touring | 1995 | |
| Harley Davidson | Road King | Touring | 1996 | |
| Harley Davidson | Road King | Touring | 1997 | |
| Harley Davidson | Road King | Touring | 1998 | |
| Harley Davidson | Road King | Touring | 1999 | |
| Harley Davidson | Road King | Touring | 2000 | |
| Harley Davidson | Road King | Touring | 2001 | |
| Harley Davidson | Road King | Touring | 2002 | |
| Harley Davidson | Road King | Touring | 2003 | |
| Harley Davidson | Road King | Touring | 2004 | |
| Harley Davidson | Road King | Touring | 2005 | |
| Harley Davidson | Road King | Touring | 2006 | |
| Harley Davidson | Road King Classic | Touring | 2004 | |
| Harley Davidson | Road King Classic | Touring | 1998 | |
| Harley Davidson | Road King Classic | Touring | 1999 | |
| Harley Davidson | Road King Classic | Touring | 2000 | |
| Harley Davidson | Road King Classic | Touring | 2001 | |
| Harley Davidson | Road King Classic | Touring | 2002 | |
| Harley Davidson | Road King Classic | Touring | 2003 | |
| Harley Davidson | Road King Classic | Touring | 2004 | |
| Harley Davidson | Road King Classic | Touring | 2005 | |
| Harley Davidson | Road King Classic | Touring | 2006 | |
| Harley Davidson | Road King | Touring | 1996 | |
| Harley Davidson | Road King | Touring | 1997 | |
| Harley Davidson | Road King | Touring | 1999 | |
| Harley Davidson | Road King | Touring | 2000 | |
| Harley Davidson | Road King | Touring | 2001 | |
| Harley Davidson | Road King | Touring | 2002 | |
| Harley Davidson | Road King | Touring | 2003 | |
| Harley Davidson | Road King | Touring | 2004 | |
| Harley Davidson | Road King | Touring | 2005 | |
| Harley Davidson | Road King | Touring | 2006 | |
| Harley Davidson | Road King Custom | Touring | 2004 | |
| Harley Davidson | Road King Custom | Touring | 2005 | |
| Harley Davidson | Road King Custom | Touring | 2006 | |
| Harley Davidson | Road King Screamin Eagle | CVO | 2002 | |
| Harley Davidson | Road King Screamin Eagle | CVO | 2003 | |
| Harley Davidson | Road King Custom | Touring | 2004 | |
| Harley Davidson | Road King Custom | Touring | 2005 | |
| Harley Davidson | Road King Custom | Touring | 2006 | |
| Harley Davidson | Electra Glide Sport | Touring | 1993 | |
| Harley Davidson | Electra Glide Sport | Touring | 1994 | |
| Harley Davidson | Electra Glide Standard | Touring | 1995 | |
| Harley Davidson | Electra Glide Standard | Touring | 1996 | |
| Harley Davidson | Electra Glide Standard | Touring | 1997 | |
| Harley Davidson | Electra Glide Standard | Touring | 1998 | |
| Harley Davidson | Electra Glide | Touring | 1999 | |
| Harley Davidson | Electra Glide | Touring | 2000 | |
| Harley Davidson | Electra Glide | Touring | 2001 | |
| Harley Davidson | Electra Glide | Touring | 2002 | |
| Harley Davidson | Electra Glide | Touring | 2003 | |
| Harley Davidson | Electra Glide | Touring | 2004 | |
| Harley Davidson | Electra Glide | Touring | 2005 | |
| Harley Davidson | Electra Glide | Touring | 2006 | |
| Harley Davidson | Electra Glide Classic | Touring | 1993 | |
| Harley Davidson | Electra Glide Classic | Touring | 1994 | |
| Harley Davidson | Electra Glide Classic | Touring | 1995 | |
| Harley Davidson | Electra Glide Classic | Touring | 1996 | |
| Harley Davidson | Electra Glide Classic | Touring | 1997 | |
| Harley Davidson | Electra Glide Classic | Touring | 1998 | |
| Harley Davidson | Electra Glide Classic | Touring | 2002 | |
| Harley Davidson | Electra Glide Classic | Touring | 2003 | |
| Harley Davidson | Electra Glide Classic | Touring | 2004 | |
| Harley Davidson | Electra Glide Classic | Touring | 2005 | |
| Harley Davidson | Electra Glide Classic | Touring | 1996 | |
| Harley Davidson | Electra Glide Classic | Touring | 1997 | |
| Harley Davidson | Electra Glide Classic | Touring | 1998 | |
| Harley Davidson | Electra Glide Classic | Touring | 1999 | |
| Harley Davidson | Electra Glide Classic | Touring | 2000 | |
| Harley Davidson | Electra Glide Classic | Touring | 2003 | |
| Harley Davidson | Electra Glide Classic | Touring | 2004 | |
| Harley Davidson | Electra Glide Classic | Touring | 2005 | |
| Harley Davidson | Electra Glide Classic | Touring | 2006 | |
| Harley Davidson | Electra Glide Screamin Eagle | CVO | 2004 | |
| Harley Davidson | Electra Glide Screamin Eagle | CVO | 2005 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1993 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1994 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1995 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1996 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1997 | |
| Harley Davidson | Electra Glide Ultra Classic Special Anniversary Edition | Touring | 1995 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1996 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1997 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1998 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 1999 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2000 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2001 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2002 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2003 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2004 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2005 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2006 | |
| Harley Davidson | Electra Glide Ultra Classic Screamin Eagle | CVO | 2006 | |
| Harley Davidson | Electra Glide | Touring | 2004 | |
| Harley Davidson | Electra Glide | Touring | 2005 | |
| Harley Davidson | Electra Glide | Touring | 2006 | |
| Harley Davidson | Street Glide | Touring | 2006 | |
| Harley Davidson | Street Glide | Touring | 2006 | |
| Harley Davidson | Tour Glide Ultra Classic | Touring | 1993 | |
| Harley Davidson | Tour Glide Ultra Classic | Touring | 1994 | |
| Harley Davidson | Tour Glide Ultra Classic | Touring | 1995 | |
| Harley Davidson | Tour Glide Ultra Classic | Touring | 1996 | |
| Harley Davidson | Road Glide | Touring | 1999 | |
| Harley Davidson | Road Glide | Touring | 2000 | |
| Harley Davidson | Road Glide | Touring | 2001 | |
| Harley Davidson | Road Glide | Touring | 2002 | |
| Harley Davidson | Road Glide | Touring | 2003 | |
| Harley Davidson | Road Glide | Touring | 1998 | |
| Harley Davidson | Road Glide | Touring | 1999 | |
| Harley Davidson | Road Glide | Touring | 2000 | |
| Harley Davidson | Road Glide | Touring | 2001 | |
| Harley Davidson | Road Glide | Touring | 2002 | |
| Harley Davidson | Road Glide | Touring | 2003 | |
| Harley Davidson | Road Glide | Touring | 2004 | |
| Harley Davidson | Road Glide | Touring | 2005 | |
| Harley Davidson | Road Glide | Touring | 2006 | |
| Harley Davidson | Road Glide Screamin Eagle | CVO | 2000 | |
| Harley Davidson | Road Glide Screamin Eagle | CVO | 2001 |