Single Injector Replacement for Kubota D902, D722, Z482 & Z602 — Precise Fix for a Proven Engine

Kubota's compact diesel engines are built to run for decades. When diagnostics point to one faulty injector, a targeted single-unit replacement is the smart, cost-effective solution — restoring combustion balance to that cylinder without unnecessary expense.

Why This Injector

• Kubota-Spec Precision — Matched to OEM injection timing, spray geometry, and pressure requirements for D902, D722, Z482, and Z602 engines
• Restores Smooth Idle & Throttle Response — Eliminates the rough running, hesitation, and excess smoke caused by a worn or clogged nozzle
• Consistent Under Load — Stable fuel metering whether your equipment is idling, under partial load, or working at full capacity
• High-Pressure & Heat Rated — Durable construction handles sustained high-pressure cycling and thermal stress across long service hours
• 100% New — Not Remanufactured — Full service life from installation; no worn internals or compromised seals
• Direct OEM Replacement — Drop-in fit, no modifications or adapters required

Fitment

• Engines: Kubota D902  |  D722  |  Z482  |  Z602
• Typical Equipment: Compact tractors, mini excavators, skid steers, generators, and utility vehicles powered by these Kubota engines
• OEM / Cross-Reference Part Numbers: 16871-53904  |  16871-53900

What's in the Box

• 1 × New Fuel Injector (16871-53904 / 16871-53900)

Replacing both injectors? We also offer this as a complete 2-piece set — the better choice for high-hour engines or full service intervals to ensure uniform spray characteristics across all cylinders.

Verify the part number against your existing injector or engine serial number before ordering. Unsure about fitment for your specific machine? Contact us — we carry a wide range of Kubota engine parts.