Description

When your Case tractor starts running rough or struggles to fire up on cold mornings, your injection pump might be telling you it’s time for a replacement. The D239 engine in these Case 43, 44, and 45 Series tractors is a solid workhorse, but after decades of delivering precise fuel to each cylinder under all kinds of conditions, even the best injection pump eventually needs attention.

What You’re Getting

Precision-engineered pump designed specifically for D239 engines in Case tractors
Delivers accurately metered fuel at the right pressure for optimal combustion
Built to handle the demands of real farm work – from loader duty to fieldwork
Direct replacement that works with your existing fuel lines and system components

Built for Real Farm Work

This pump fits the Case 743 XL, 844 XL, 844 S, 845 XL, 745 XL, 845, and 745 S tractors – machines you’ll find on farms handling everything from hay operations and livestock chores to cultivation and heavy tillage work. Whether you’re running a front loader, pulling a disk, or working ground, that D239 engine relies on precise fuel delivery to keep pulling strong under load.

Made to Last

Injection pumps work under extreme pressure every time you fire up the engine, and this replacement is built to CAV specifications with precision internal components that ensure proper fuel timing and delivery. The robust construction handles the vibration and temperature extremes that come with daily farm use, giving you years of dependable service when you need it most.

Good to Know

Installation requires some mechanical skill since fuel timing is critical – you’ll want to mark your old pump’s position before removal or have a qualified mechanic handle the job. Make sure your part numbers match exactly, as there are variations depending on your specific tractor model. Consider replacing fuel filters and having injectors tested while you’ve got everything apart – clean fuel system components help your new pump deliver peak performance for years to come.