C20653, C20652, C29959, C34097 Onan CCK Fuel Pump Upgrade Conversion Custom Kit. 
Works on many brands of equipment, tractors, mowers, generator etc. NOT just Case Ingersoll 646 CCK. Will work as a fuel pump on many models and brands of engines and equipment.
This custom upgrade kit works to replace both the original vacuum/pulse pump that's on the flywheel housing or the mechanical pump driven off the cam that sits under/next to carburetor. NOTE- MUST choose what style pump you currently have now to get correct upgrade kit. 
 
PART NUMBERS THIS KIT MAY REPLACE- 149 1784, 149 1223, 149 1982, 149 2187, C20653, C20652, C29959, C34097, 149 1791, 149 0526, 149 1544, 149 1213, 149 1911, 149 1784, 149 1393, 149 0693, 149 2501, 149 149 1322, HE149 1982. Woeks on most ENGINE Model CCK, CCKA, CCKB,MCCK,RCCK,NH, NHA, NHC, AJ, AK And others
 
We put this custom kit together to solve a very common and frustrating issue for thousands and thousands of ONAN CCK Engine owners. This is a cost effective quality and lasting solution we have in this kit with all you need to do the change over to a reliable fuel pump on your Onan CCK and other engines. The OEM CCK fuel pumps or Very hard to find and are priced crazy, depending on model $200 to $400 for one!  We have searched and tried countless aftermarket options, even from quality and trusted suppliers and have not found 1 suitable and reliable alternative. Many aftermarket parts can work well and save money  AFTERMARKET FUEL PUMPS ARE NOT ONE!! They are garbage and total waste of money and fail very fast. It does not matter if you get a $20 or $200 aftermarket fuel pump we have not found one that’s worth a darn. That is the reason we put this complete custom kit together for you. It is a very fast and simple install, basically plug and play with high quality components! We have the adapter plate that is customer made here and in the USA, custom cut to our specs, top quality Custom USA made Gaskets, Top Quality Pulse Pump used on many OEM engines, quality fuel hoses and clamps. Nice Black hardware that gives a couple options to fasten pump and a threaded brass fitting so there is no chance of fasteners getting into your engine. There is an OPTION to add our high quality high capacity inline fuel filter we highly recommend doing this.
 
INSTRUCTIONS. Simply remove your old pump, For Mechanical pump replacement,  remove your mechanical pump thats located near carburetor. Install our adapter plate with fitting and gasket with a gasket sealer. 
For replacement of original vacuum/pulse pumps.  Remove old vacuum pump and bracket and throw out.  
Find a suitable location to mount Our new pulse pump and/or our bracket, Can mount on fly wheel blower housing where original vac pumps mount or other suitable locations.  Best to keep it away from extreme heat and exhaust. You can mount to blower housing shroud, other parts of engine, tractor firewall, dash tower, frame etc. We provide screws that will thread in some holes on the engine and or tractor as well as self drilling screws so you can place the pump where you want. There are 3 ports on the new pump, IN and OUT have SMALL arrows and the pulse/vacuum from our adapter plate goes to the outer/center fitting of pump. IN comes from the fuel tank and the OUT goes to your carburetor. Use hose clamps on all hoses and make sure to use a inline fuel filter, ideally before pump to protect it. The pump can push or pull so it can be mounted a different heights but ideally 6 inches higher or lower than the carb. But will work fine mounted higher or lower than 6 inches just will make the pump work harder. If possible higher than the vacuum line fitting on engine will help oil mist drain back into engine and not pump, but NOT a must.
NOTE- Keep fuel lines secure and away from heat or moving parts, if running line through flywheel housing make sure its clear of flywheel and ran correctly and using the hose retainers INSIDE blower housing.
 
A great upgrade and companion to this kit is our CCK Carburetor Nikki UPGRADE CUSTOM Kit. So  you can upgrade to a more affordable, more power producing and decades newer technology carburetor that parts are still available and easy to get for. Check it out HERE
 
WATCH OUR VIDEO ON THE Onan CCK Fuel Pump Conversion UPGRADE KIT.  CLICK HERE
 
PART NUMBERS THIS FUEL PUMP KIT MAY REPLACE- 149 1784, 149 1223, 149 1982, 149 2187, C20653, C20652, C29959, C34097, C34697, 149 1791, 149 0526, 149 1544, 149 1213, 149 1911, 149 1784, 149 1393, 149 0693, 149 2501, 149 149 1322, HE149 1982