Description

When your CAV injection pump isn’t holding its throttle setting or you’re getting uneven engine response, this small but crucial adjusting screw might be the fix you need. The throttle shaft area is one of the most common wear points on CAV injection pumps, and a loose or damaged adjusting screw can throw off your entire fuel delivery system. This precision-made replacement gets your throttle linkage back to working like it should, giving you smooth, reliable engine response from idle to full power.

What You’re Getting

Precise threads that hold adjustment without backing off during operation
Durable construction that handles the constant vibration and movement of the throttle mechanism
Direct replacement that works with the corresponding nut (part 53024) and washer (part 53025) for complete assembly
Proper fit for CAV injection pumps on classic Massey Ferguson and Ford tractors

Built for Real Farm Work

This screw fits the same CAV injection pumps found on popular Massey Ferguson 100 series (135, 148, 165, 168, 175, 178, 188) and 35 series models, plus Ford 1000 series (2000, 3000, 4000) and 600 series (2600, 3600, 4600) tractors. These workhorses have been handling everything from hay operations and loader work to cultivation and livestock chores for decades. Injection pumps work under extreme pressure and constant demand, especially when you’re pulling heavy implements or working your tractor hard all day.

Made to Last

Injection pump components take a beating from high-pressure diesel fuel, constant vibration, and temperature swings. This adjusting screw is built from quality materials that resist wear and maintain their threads even after years of adjustment and readjustment. The precision manufacturing ensures it’ll thread smoothly and hold its position reliably.

Installation Notes

This screw threads into the throttle arm mechanism on your CAV pump housing. Take a photo of your current setup before disassembly to help with reassembly. When installing, don’t overtighten – just snug it up and make your throttle adjustments gradually. If you’re doing a complete throttle linkage overhaul, now’s a good time to check all the related components for wear.