OEM Replacement Springs for MixRite TF Series Fertilizer Injectors
Keep your MixRite fertilizer injector running at peak performance with this genuine Plastic Engine Spring Kit (Part 36000000191). Each kit contains 2 replacement springs and is compatible with the MixRite TF3, TF5, TF10, and TF25 series injectors. Springs are a normal wear item in the MixRite pump mechanism — having a spare set on hand minimizes downtime during the growing season and is an easy, low-cost way to restore accurate fertigation metering.
⚠ Compatibility Notice
These springs are NOT compatible with the following models:
- 2% Adjustable Injector – 1″ (IMRTF52)
- 2% Adjustable Injector – 1½” (IMRTF102)








