Jun 2
Bosch DLLA142P1709 – The Common Rail Nozzle Your Cummins ISLe Needs
Quick specs if you’re working on a Cummins ISLe 8.9L:
Nozzle stamping: DLLA142P1709 Bosch number: 0 433 172 047 0.142mm holes, 1709 flow code Fits injector assembly 0 445 120 121 (also 0986AD1047 / 4940640) Operating pressure: 1,600–2,000 bar
Whether you’re troubleshooting black smoke, hard starting, or high return flow, getting the right nozzle matters.
👉 Read the full technical deep‑dive here: DLLA142P1709 Common Rail Nozzle – Specs, 0445120121 Injector Fitment & Cummins ISLe Guide