Description

When your spray pump’s left head assembly starts leaking or loses pressure, it’s not just annoying—it means your spraying operation isn’t working right. Whether you’re spot treating weeds or running a full field sprayer, a failing head assembly can leave you with uneven coverage and wasted chemicals. This replacement left head assembly gets your AR diaphragm pump back to delivering consistent pressure and flow.

What You’re Getting

Complete left head assembly designed to match AR North America pump specifications
Precision-machined components that handle the pressure cycling of diaphragm pump operation
Durable construction built to resist corrosion from herbicides and other agricultural chemicals
Direct replacement that restores pump performance without modifications

Built for Real Farm Work

This head assembly fits AR North America diaphragm pumps commonly found on field sprayers, spot spray rigs, and boom applicators. These pumps are workhorses on farms and ranches, handling everything from post-emergence herbicide applications to fence line spraying and pasture management.

Made to Last

AR Pumps has been building spray equipment for decades, and this head assembly reflects that experience. The materials are chosen to handle the constant pressure changes that diaphragm pumps create, while chemical-resistant surfaces keep working even with aggressive herbicides and liquid fertilizers.

Installation Notes

Replacing a head assembly is straightforward but requires draining the pump first. Make sure all fittings are properly tightened to prevent air leaks, which cause pressure loss. It’s a good time to inspect your diaphragms and check valves while you’ve got things apart—these wear items often need attention at the same time.