C29868 C43758 Onan OEM Nikki carburetor kit is used on 16 horsepower and Some 18 Horsepower Onans and Linmar engines.
This carb was used on Late Model 226 (after 14076775 serial number) 446 (after 14074175 serial number) With Onan "B" series, these machines had the plastic dash and large 8-inch air cleaner.
 
This carb also came on ALL Onan "P" Performer and Linmar powered 3016 and 4016, 4116 and 3016, 4016 power steering and some 3018, 4018, 4118, 3118 and 6018 Onan Loaders. These carbs also come with the carb-to-intake gaskets and we include 2 USA intake gaskets and a high-capacity quality fuel filter to protect your new carb...
Look at photos and make sure your 200 and 400 series has this Nikki Style carb and Not the "square" shape DD Style found on most 200 and 400 series Onan-powered tractors. New DD Carb HERE
All Onan P Performers and Linmar engines had the Nikki Style Carbs but 2 sizes, this one and the larger C29869 ( click here) used on some 18 and all 20 horsepower models. These are the correct top-quality OEM Onan Nikki Carbs.
 
OPTION- Screw option for 3 long screws that hold the tall plastice air deflector and air cleaner base to carb. Look at photos. (can be shortened and use for air cleaner mounting screws without tall air defector)
 
NOTE- These are non-accelerator pump, non emissions model carbs and our current stock actually still have adjustable low speed jet! This carb is much cheaper than the $600 to $1000 accel pump, emisssions and other spec carbs. These carbs have been used to replace any Nikki style carbs on 16 and some 18 horsepower Onan engines with or without accelerator pumps or fixed jets.
 
NOTE- If using in place of accelerator pump style carb you may need to modify or swap your governor rod to carb and clips on some models as they may be different sizes.
 
NOTE- Disclaimer: Because of emission regulations they are being sold as "Test and Diagnostic use only" to abide to emission regulations for those using them on engines that were originally equipped with emission model carbs....
 
We do also offer a quality affordable aftermarket carb for Onan Engines that use Nikki Style carbs.
 
Shop Tip/Option - We highly recommend resealing your Intake as 2 piece Onan intakes at this point in their lives is common to find them leaking and cause poor running engines. Not only is the engine performance bad, but so is economy and can also do engine damage by sucking in un filtered air. We sell resealed intakes on this site or you can send us your intake for us to perform a full reseal service as well. Option at check out
 
 
146-0429, 146-0478, 146-0273, 146-0294, 146-0311, 146-0495, 146-0314
146-0344 146-0387 146-0388 146-0389 146-0412 146-0428