Fuel Injection Pump JDB435-3021 For 4276D Engine

Built‑up as a heavy‑duty rotary‑distributor fuel injection unit, this pump runs on a fully‑mechanical governing system without electronic control components. Specially engineered for classic farm tractors, it can withstand persistent vibration, high‑temperature workloads and contaminated diesel fuel in dusty farm‑field environments. Compared with electronically‑controlled fuel pumps, it delivers far‑better stability while using low‑grade impure diesel, reducing unexpected machine downtime. Its internal plunger assembly and delivery valve are made of hardened wear‑resistant alloy with precision‑grinding treatment, maintaining steady high‑pressure sealing, avoiding internal fuel leakage and extending overall pump service life.

• All‑mechanical distributor‑type design, no electronic parts for enhanced durability
  Excellent anti‑vibration performance, reliable fuel supply on rough farm roads
  High‑temperature resistant, capable of long‑time heavy‑load continuous operation
  Strong tolerance for contaminated, poor‑quality diesel fuel
  Hardened & precision‑ground core components, leak‑free high‑pressure sealing
  Accurate fuel metering, stable engine power output and improved combustion efficiency
  Simple mechanical layout, easy on‑site maintenance with low repair costs
  Fully bench‑calibrated and tested, direct‑fit aftermarket replacement