BLLA 156 P 2401

BOSCH INJECTOR NOZZLE: DLLA156P2401 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: DLLA156P2401
BOSCH MEC / Catalog Number: 433172401 (0 433 172 401)
System Manufacturer: BOSCH Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- BOSCH Injector References: 0 445 110 565, 0 445 110 566
- OEM / Vehicle Manufacturer: PEUGEOT / PSA Group
Typical Applications:
• Peugeot 1.6 HDi / 2.0 HDi passenger cars (e.g., 207, 308, 3008, Partner, Expert)
• Citroën 1.6 HDi / 2.0 HDi models (e.g., C4, Berlingo, Jumpy)
• Other PSA vehicles using CRI‑2‑16 injectors

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: PSA diesel passenger cars and light commercial vehicles using CRI‑2‑16 injectors.
Engine Type: 1.6 L / 2.0 L HDi / BlueHDi Common Rail Diesel engines.
Power / Performance Range:
- HP: ~75–120
- kW: ~55–88
Injector Technology: BOSCH Common Rail Injector (CRI‑2‑16 type)
Nozzle Type: DLLA156P2401 — precision high-pressure nozzle for accurate atomization.

Technical Characteristics:
- Number of Holes: 6–7 (engine variant dependent)
- Spray Angle: 156°
- Material: High-speed, heat-treated tool steel
- Weight: ~30 g net, ~35 g gross
- Needle Coating: Black-coated needle for durability
- Fuel Compatibility: Standard CR diesel (EN 590 / B7)
- Performance Features: Fine atomization, stable spray behavior, longevity in high-pressure CRI‑2‑16 systems
- Emission Compliance: Euro 5 / Euro 6

III. Critical Technician Notes (MUST‑DO)

1. Clean Installation: Ultrasonic cleaning of nozzle recommended prior to installation.
2. Sealing Components: Replace all copper washers, O-rings, and injector seals.
3. Injector Mounting: Follow OEM torque and alignment specifications.
4. Post-Installation Testing: Conduct leak-back and test-bench spray pattern verification.
5. Calibration / Coding: Use PSA / BOSCH diagnostic tools for coding or calibration if required.
6. Fuel Quality Notes: Ensure clean, water-free diesel; replace fuel filters during service.
7. Storage & Handling: Store in a dry, dust-free environment; protect nozzle tip from impact.
8. Monitoring & Maintenance: Observe injector performance after replacement (leak-off, idle, fuel return) to detect early wear.
9. Common Fault Symptoms: Rough idle, black smoke, reduced power, hard cold start, or excessive fuel return flow.