When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Purpose-Built Joystick Upgrade for AGT MX12RX and MX15RX Excavators
The Spring Pilot SP66 GEN2 is a precision-engineered upgrade specifically designed to improve the smoothness, precision, and control of AGT MX12RX and MX15RX hydraulic pilot joystick systems.
Factory joystick controls are often overly sensitive, making fine positioning difficult. This upgrade introduces engineered resistance directly at the pilot control piston, dramatically improving control feel and hydraulic modulation.
- Smooths jerky or overly sensitive joystick response
- Improves precision during trenching and grading
- Enhances operator confidence and machine control
- Fully reversible installation
- No cutting or permanent modification required
The ORIGINAL Spring Pilot Upgrade Kit - All Kits Are NOT Created Equal!
Feature Spring Pilot Kit Generic Kits Design & Engineering Purpose-engineered by a US spring maker, specifically for heavy equipment pilot control applications. Pilot control upgrade kits are our only product. It is what we do! General purpose, off-the-shelf spring options "marketed / resold" for pilot controls. Loss leader products NOT made for heavy equipment joysticks. Fit & Function Custom Fit for max piston travel. Eliminates scary bounce-back effect. Delivers 50-70% more resistance. General purpose springs are not engineered with bounce-back reduction in mind. Common response: "They could be stiffer." Piston Protection Spring Pilot Kits include piston protection features that prevent damage from spring ends contacting piston surfaces. Generic, general-purpose springs cannot and do not protect against piston scoring. Made In Oregon, USA Often imported Who It’s For Operators who want a purpose-built, premium solution that fits like a glove, protects joystick assemblies, reduces bounce-back and delivers max resistance to pilot controls Operators who think all springs are created equal and who shop purely based on price
Designed Specifically for AGT Pilot Control Systems
Spring Pilot components are engineered specifically for hydraulic pilot control valve architecture used in AGT excavators.
Unlike generic hardware springs, these components provide consistent resistance characteristics and proper fitment for long-term performance.
Simple Plug-and-Play Installation
- Installs directly onto pilot control pistons
- No special tools required
- No permanent modification
- Typical installation time: 15–30 minutes
Installation video support available upon request.
Kit Includes
- Eight (8) precision-engineered pilot control springs
- Complete upgrade for both joystick assemblies
Trusted Upgrade for AGT Equipment Owners
Spring Pilot upgrades are used worldwide to improve hydraulic control precision and operator confidence.
This upgrade provides a simple, effective solution to improve joystick performance on AGT MX12RX and MX15RX excavators.
Ships from USA. Fast shipping.
