The JDG1184 is the definitive "Head-On" replacement set for John Deere 10.5L, 12.5L, and 13.5L EUI engines—engineered to remove and install nozzle sleeves without pulling the cylinder head.

The "Head-On" Advantage: Saving Time on Large Displacement Overhauls

On heavy-duty John Deere 10.5L through 13.5L engines, traditional injector sleeve replacement often required pulling the entire cylinder head—a labor-intensive process that spikes downtime. The JDG1184 tool set changes the game by allowing "head-on" service.

• No Head Removal Required – Perform in-frame sleeve extraction and installation, saving hours of labor and gasket costs.
• Critical Seal Integrity – Injector sleeves isolate high-pressure fuel from engine coolant; the JDG1184 ensures the new sleeve seats perfectly to prevent cross-contamination.
• Carbon-Seizure Solution – Large displacement EUI engines generate massive heat, leading to "welded" sleeves. This kit provides the mechanical advantage to break them loose safely.
• Controlled Installation – Prevents "over-driving" or "under-seating" the nozzle cup, which can cause injector misalignment and poor combustion.
• Professional Shop Grade — High-strength, precision-machined steel components designed for the rigors of agricultural and industrial repair environments.

What is the JDG1184 Replacement Tool Set?

The JDG1184 Nozzle Sleeve Tool Set is a comprehensive kit for the removal and installation of injector cups. It includes the specialized puller and installer drivers required to maintain the tight tolerances of John Deere’s EUI fuel systems.

Technical Specifications & Engine Compatibility

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