Keep your transfer case running smoothly with this direct-fit oil pump! It’s designed to replace worn or failing pumps in popular New Process transfer cases like the NP231, NP233, NP241, NP242, and NP243. Fits many Jeep, Dodge, and GM vehicles. The pump has 38 splines where it mounts onto the main shaft – make sure to check your spline count before ordering. Made to meet OE standards, it ensures proper lubrication and helps extend the life of your transfer case. Perfect for off-roaders, mechanics, or DIYers dealing with transfer case issues like noise, overheating, or poor performance. Installation is straightforward if you’re familiar with transfer case work. Reliable performance, solid construction, and a direct replacement for part #16209. Don’t let a bad pump leave you stranded – keep your 4x4 or truck in top shape with this quality component. Great for repairs, rebuilds, or preventative maintenance.