BLLA 154 G3 S43

DENSO INJECTOR NOZZLE: G3 S43 – FULL SPECIFICATION

I. Key Identification & Compatible Injectors

Nozzle (Injector Tip) P/N: G3 S43
Alternate / Cross Reference: 295050-0770, 5570012F-B, 295050-077#
System Manufacturer: DENSO Common Rail Diesel Injection System.

Compatible Injector Assembly P/N(s):
- DENSO Injector Reference: 295050-0770 / 5570012F-B / 295050-077#
- OEM / Vehicle Manufacturer: OPEL
- Typical Applications (with HP / kW):
• Opel Astra J 1.6 CDTI – 136 HP / 100 kW
• Opel Zafira Tourer 1.6 CDTI – 136 HP / 100 kW
• Opel Meriva 1.6 CDTI – 136 HP / 100 kW

II. Vehicle / Engine Application & Technical Data

Primary Vehicle Application: 1.6 L CDTI common-rail diesel engines in Opel passenger cars and MPVs.
Engine Type: 1.6 L inline-4 CDTI Diesel, Euro 5 compliant
Injector Technology: DENSO Common Rail Solenoid Injector.
Nozzle Type: G3 S43 — precision multi-hole nozzle for stable high-pressure atomization.
Technical Characteristics:
- Material: High-strength tool steel
- Fuel Compatibility: EN 590 Diesel / B7 Biodiesel blends
- Performance Features: Optimized for smooth idle, precise combustion, low emissions, and long service life

III. Critical Technician Notes (MUST-DO)

1. Clean Installation: Thoroughly clean nozzle before installation; ultrasonic cleaning recommended.
2. Sealing Components: Always replace O-rings, copper washers, and seals; do not reuse old parts.
3. Injector Mounting: Follow OEM torque and alignment specifications.
4. Post-Installation Testing: Perform leak-back test and verify spray pattern on a test bench.
5. Calibration / Coding: Use Opel or DENSO diagnostic tools if required for injector coding.
6. Fuel Quality Notes: Use clean, high-quality diesel; replace filters when servicing.
7. Storage & Handling: Keep nozzle in a dry, dust-free environment; protect the tip from damage.
8. Common Fault Symptoms: Hard cold start, black smoke, rough idle, reduced power, excessive fuel return flow.