#boschnozzle

Unlike the DLLA series, the DSLA143P970 uses a Valve Covered Orifice (VCO) design – smaller sac volume = lower hydrocarbon emissions. Perfect for:

Cummins ISBe 4.5L / 5.9L (buses, trucks, school buses)

IVECO EuroCargo 3.9D–5.9D (2000‑2006)

Agrale‑Deutz agricultural equipment

Key specs:

Bosch No: 0 433 175 271

Injector assembly: 0 445 120 007

Solenoid: F 00R J02 697 / F 00R J00 339

👉 Read the complete specs, applications, and performance guide here: DSLA143P970 Nozzle: Complete Specs, Injector Compatibility & Applications for Cummins ISBe

If you’re chasing rough idle, black smoke, or hard starts on a Cummins ISBe 4.5L / 5.9L (Euro III/IV) or a MAN TGL/TGM, stop guessing. Look at the injector stamping: DLLA148P1726.

This Bosch 5‑hole nozzle runs at 1,600 bar and belongs to injector assembly 0 445 120 105. Mix it up with a DLLA142P1709 (ISLe) or DLLA118P2203 (QSL9) and you’ll either under‑fuel or melt pistons – no joke.

Quick facts:

Flow code 1726 – mid range, perfect for 150‑240 HP

Return flow limit: ≤60 ml/min at idle

Common failure: carbon fouling from extended idle (school buses), needle seat wear, water damage

ISBe torque spec: hold‑down clamp 59 N·m – don’t use ISLe torque!

Replace all six as a set. Use a 1.0 mm copper gasket. And for Euro IV engines, don’t forget to reset trim codes with Cummins Insite – otherwise the ECU will hate you.

👉 Read the complete specs, installation, and failure analysis here: DLLA148P1726 Nozzle for 0445120105 Injector: MAN Truck & Cummins ISBe Applications