Also rebuilds air compressor regulator part numbers: VT036100AV, WL029700AV, WL017601AV and WL017600AV. Is the regulator on your air compressor manifold leaking? Have you tried to find a rebuild kit for it (which consists of a couple of O-rings and a plastic part or two), only to find that you have to buy an entire manifold? Well, I did too. I'll be honest...it pissed me off just a little bit. So I took that negative energy and found a solution. What I have here for my fellow Americans is a rebuild kit that I researched and put together to save some money while repairing the issue. I pass these savings on to you. Rest assured that if it's good enough for me it's going to make you happy. Instructions: 1. When you receive your rebuild kit, unscrew the cap 2. Remove spring 3. Remove plunger 4. Use a flat head screwdriver to unscrew and remove the air regulator valve. Unscrew carefully, there is a black rubber seal and a spring on the back side, so take care as you don't want to lose them. 5. Reassemble in same order on your compressor manifold. 6. The effort to turn your rebuilt regulator may be increased. This is normal. Also works for the following model numbers: EX800701AJ 4B222E (2007) 4B222E (2008) TF214800 (2005) TF214700 (2005) DP45517C (2005) DP4460TA (2005) WL506208 (2003) EX800003 (2003) EX800003 (2007) EX800301AJ (2005) EX801800 (2007) EX820000 (2004) EX8302 (2004) EX840300 (2005) XP581000 (2005) XP581501 (2005) FP201255AJ (2002) HS781003 (2005) TF291202 (2005) TF291203 (2007) HS781003 (2006) HS781004 (2006) HS781002 (2003) HS781003 (2004) HS781004 (2007) TF291201 (2003) VT635600 (2006) VT635700 (2006) HS781003AJ TF061903 CAMPBELL HAUSFELD WL021100AV Manifold Assembly This part replaces obsolete part #: VT036100AV, WL029700AV, WL017601AV and WL017600AV.This manifold assembly is specially manufactured for Campbell Hausfeld compressors. This kit is compatible with the following machines: EX800701AJ Compressor4B222E (2007) Speedaire 4B222E (2008) TF214800 (2005) Gasoline TF214700 (2005) Gasoline DP45517C (2005) Wheelbarrow DP4460TA (2005) Stationary WL506208 (2003) EX800003 (2003) EX800003 (2007) EX800301AJ (2005) 5.5 HP Wheelbarrow VT VT633000AJ (2005) 5.5 HP Wheelbarrow VT VT633001AJ (2005) 5.5 HP Wheelbarrow VT VT633200AJ (2005) 5.5 HP Wheelbarrow VT EX801300AJ (2005) 5.5 HP Wheelbarrow VT EX800502 (2005) Oil Lubricated FP201201 (2005) Oil Lubricated FP201202 (2005) Oil Lubricated EX800700AJ (2004) EX8011 (2004) Oilless EX801200 (2005) Wheelbarrow VT VT635300 (2005) Wheelbarrow VT EX801800 (2007) Wheelbarrow VT EX820000 (2004) EX8302 (2004) EX840300 (2005) Stationary XP581000 (2005) Stationary XP581501 (2005) Stationary FP201255AJ (2002) Oil Lubricated HS781003 (2005) Stationary TF291202 (2005) Stationary TF291203 (2007) Stationary HS781003 (2006) Stationary HS781004 (2006) Stationary HS781002 (2003) Stationary HS781003 (2004) Stationary HS781004 (2007) Stationary TF291201 (2003) Stationary VT635600 (2006) Vertical VT635700 (2006) Vertical HS781003AJ Stationary TF061903 Stationary XP581501 Pump