Dosatron® D128R Push Rod

Product Overview

A worn or brittle push rod in your Dosatron injector is a small failure that causes immediate system shutdowns. When the rod fails during mid season fertigation, your nutrient delivery stops, leading to immediate crop stress, uneven growth, and potential yield loss. During peak growing months, the demand for replacement parts often exceeds available stock, and waiting on back orders while your plants suffer is not an option for professional growers. Securing these essential wear parts now ensures your injection systems remain operational when the summer heat puts the highest demand on your fertigation cycles. Planning ahead protects your reputation and keeps your maintenance schedule on track.

The Dosatron D128R Push Rod is engineered from high grade reinforced materials that far outlast generic aftermarket components. By using genuine OEM parts, you ensure perfect 128 series fitment which prevents internal friction and reduces the strain on the rest of the motor assembly. This precision leads to fewer service calls and lower long term maintenance costs for your crews. Maintaining a stocked kit of these rods gives you a competitive edge by allowing for instant field repairs, keeping your clients satisfied and your equipment running at peak efficiency without the need for multiple site visits.

Product Specifications

Available Models & Sizes

The D128R Push Rod is specifically designed for the D128R model injector series; however, we carry a full inventory of push rods and plungers for the entire Dosatron line including the D14 and D25 units. Please contact our technical sales team for bulk pricing or assistance with full rebuild kit configurations for your specific injection setup.

Key Features

• Genuine Dosatron OEM part ensures exact tolerance and seamless integration with the D128R motor.
• Constructed from chemical resistant materials to withstand aggressive fertilizers and acids.
• Low friction design reduces heat buildup and extends the service life of internal seals.
• High tensile strength prevents bending or snapping under high pressure irrigation cycles.
• Drop in replacement design allows your crews to perform field repairs in minutes.
• Precision molded surfaces minimize wear on the companion piston and cylinder walls.

Common Applications

• Agricultural and crop irrigation
• Greenhouse and nursery operations
• Chemical and fertigation delivery
• Golf course and sports turf maintenance
• Commercial landscape irrigation
• High precision nutrient dosing systems

Installation Notes

Installation requires basic hand tools to open the injector body and access the motor assembly. Ensure the system is depressurized and the water supply is shut off before beginning work. We recommend lubricating the rod and associated O-rings with a manufacturer approved silicone lubricant to ensure smooth movement and a watertight seal. Always follow the specific torque requirements for the injector housing to prevent cracking the casing and ensure compliance with chemical handling safety standards.