ISUZU 6HE1 Fuel Injector Nozzle DLLA161PN109 PDN Pintle Type with 4 Spray Holes in High-Grade Steel
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
FVR 6HE1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Nozzle Model: | DLLA161PN109 | Spray Holes: | 4 |
| Opening Pressure: | 17.2 MPa (175 Kgf/cm²) | Net Weight: | 0.047 Kg |
| Hole Diameter: | 0.33 Mm | Nozzle Type: | PDN (Pintle) Type |
| Spray Angle: | 161° | Injection Order: | 1-5-3-6-2-4 |
| High Light: | PDN Pintle Type Fuel Injector Nozzle,4 Spray Holes Diesel Injection Nozzle,High-Grade Steel Nozzle Tip |
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Product Description
ISUZU FVR 6HE1 Fuel Injector Nozzle 8943933760 DLLA161PN109 OEM Fit
Product Overview
Fuel Injector Nozzle 8943933760 8-94393376-0 DLLA161PN109 for ISUZU FVR 6HE1 6HH1 — Verified OEM Fit Zexel 9432611081 Diesel Injection Nozzle
This fuel injector nozzle with OEM numbers 8943933760 and 8-94393376-0 — also referenced as DLLA161PN109 — is a verified direct-fit replacement for ISUZU FVR/FSR/FTR/FSS/FRR/NRR medium and heavy-duty trucks equipped with the 6HE1/6HH1/6HE1-TC diesel engines. This nozzle is a critical component of the diesel fuel injection system, responsible for atomizing fuel into the combustion chamber for efficient, clean combustion.
Working Principle
The fuel injector nozzle is the precision element at the tip of the fuel injector. It receives pressurized fuel from the injection pump and atomizes it into a fine mist that mixes with compressed air in the combustion chamber for ignition. The DLLA161PN109 nozzle features a PDN (Pintle) type design with 4 spray holes, each with a diameter of 0.33 mm and a spray angle of 161°. This configuration ensures optimal fuel distribution and complete combustion. The nozzle is manufactured from high-grade steel and hardened to withstand the extreme pressures and temperatures of the diesel combustion process.
Failure Symptoms
Replace the fuel injector nozzle when any of these symptoms appear:
- Engine misfiring or rough idle — clogged or worn nozzle holes cause uneven fuel delivery, resulting in rough operation and vibration
- Excessive black smoke — poor atomization leads to incomplete combustion, producing black exhaust smoke
- Power loss and increased fuel consumption — inefficient combustion reduces engine power and increases fuel usage
- Hard starting — worn nozzles cause poor fuel delivery, making cold and hot starts difficult
- Knocking or abnormal engine noise — irregular fuel spray patterns can cause combustion knock and increased engine noise
Critical Inspection Note: ISUZU service manuals require that fuel injector nozzles be tested for spray pattern, opening pressure, and leakage before installation. The opening pressure for the 6HE1 injection system is 17.2 MPa (175 kgf/cm²). Always replace nozzles as a complete set of six and use new copper washers. Inspect the injection pump calibration to ensure proper fuel delivery.
Technical Specifications
| Verification Item | Data / Standard | Source / Method |
|---|---|---|
| Part Number (Short) | 8943933760 | ISUZU OEM Parts Database |
| Part Number (Long) | 8-94393376-0 | ISUZU OEM Parts Database |
| Nozzle Model | DLLA161PN109 | Zexel specification |
| Zexel Reference | 9432611081 | Zexel parts database |
| Nozzle Type | PDN (Pintle) Type | Technical specification |
| Spray Holes | 4 holes | Motoareindustriale specification |
| Hole Diameter | 0.33 mm | Motoareindustriale specification |
| Spray Angle | 161° | Motoareindustriale specification |
| Opening Pressure | 17.2 MPa (175 kgf/cm²) | ISUZU 6HE1 injection pump calibration data |
| Engine Compatibility | 6HE1 / 6HH1 / 6HE1-TC / 6HE1TCC | ISUZU application catalog |
| Vehicle Models | ISUZU FVR / FSR / FTR / FSS / FRR / NRR / Forward | ISUZU application catalog |
| Material | High-Grade Steel (Hardened) | Material certificate |
| Net Weight (per unit) | 0.047 kg | 9432611081 specification |
| Warranty | 12 Months | Manufacturer standard |
| Certification | ISO/TS 16949 | Third-party system audit |
OEM Cross-Reference
| Type | Number |
|---|---|
| Primary OEM — Short | 8943933760 |
| Primary OEM — Long | 8-94393376-0 |
| Alternate Format | 8-94393-376-0 |
| Zexel Reference | 9432611081 |
| Zexel Nozzle Model | DLLA161PN109 |
| Zexel Alternative | 9432610720 / 9432610325 |
| Nozzle Number | 105017-1090 / 105019-1000 |
| Related OEM | 8943965750 / 8943965751 |
| Related OEM | 9-432-610-720 |
| Competitive Cross-Reference | 9 432 611 081, DLLA161PN109, NP-DLLA161PN109 |
Platform Note: The 8943933760 / DLLA161PN109 nozzle is used across the ISUZU 6HE1 and 6HH1 engine families, as well as the Mitsubishi 6D15 engine. The Zexel 9432611081 is the primary reference number for the nozzle assembly. The 105017-1090 nozzle number is the Zexel production number. Confirm your exact engine model and injection pump specification before ordering.
Product Image
| Part Number: | 8943933760 | Product Name: | Fuel Injector Nozzle |
| Car Model: | FVR | Engine Model: | 6HE1 |
| Condition: | 100% Brand New | Size: | Standard |
| Weight: | Standard | Origin: | China Mainland |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe | ||
| Package: | Neutral Packing Or Make It As Requested | ||
| Material: | High-strength aluminum alloy & precision bearings | Cooling Type: | Engine coolant circulation |
| Installation: | Direct OEM replacement | Quality Standard: | OEM equivalent / ISO quality control |
Vehicle & Engine Compatibility
Primary Applications
| Brand | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| ISUZU | Forward | FVR5FC / FVR5FF / FVR5MC / FVR5MF | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FVR6MC / FVR6MF / FVZ5MF | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FRR5MF / FRR5WF / FRR6MC | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FSR5MF / FSR5WF / FSR6MF / FSR6VF | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FTR5MC / FTR5MF / FTR5WF / FTR6MC | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FSS5MF / FSS5WF / FTS5MC / FTS5MF / FTS5WF | 6HE1 / 6HE1-TC | 1990s-2000s |
| ISUZU | Forward | FVM5MF / GVR5MC | 6HE1 / 6HH1 | 1990s-2000s |
| ISUZU | NPR | NPR71L / NPR71P / NPR72G / NPR72L / NPR72P | 6HE1 | 1990s-2000s |
Non-ISUZU Applications (Same Engine Platform)
| Brand | Model | Engine |
|---|---|---|
| Mitsubishi Fuso | FM616 / FM series | 6D15 |
Important Fitment Notes:
- This nozzle is designed for the DLLA161PN109 specification. Confirm the nozzle model number of your original injector before ordering.
- The 6HE1 injection system uses an opening pressure of 17.2 MPa (175 kgf/cm²). Verify the injector opening pressure setting before installation.
- Nozzles should be replaced as a complete set of six to ensure balanced fuel delivery across all cylinders.
- The DLLA161PN109 nozzle is also compatible with the Mitsubishi 6D15 engine. Confirm your engine model before ordering.
- For right-hand drive (RHD) vehicles, verify clearance and orientation. Refer to the ISUZU workshop manual for the correct procedure.
Fitment Verification: To ensure 100% accurate matching, please provide the VIN or chassis number before ordering. We will verify it through the ISUZU global EPC system.
Features & Benefits
PDN (Pintle) Type Design
Precision pintle geometry ensures optimal fuel atomization for complete combustion — verified by Zexel DLLA161PN109 specification.
Precision pintle geometry ensures optimal fuel atomization for complete combustion — verified by Zexel DLLA161PN109 specification.
4×0.33 mm Spray Holes / 161° Spray Angle
Four-hole configuration with 161° spray angle ensures uniform fuel distribution across the combustion chamber — verified by Motoareindustriale specification.
Four-hole configuration with 161° spray angle ensures uniform fuel distribution across the combustion chamber — verified by Motoareindustriale specification.
High-Grade Hardened Steel
Withstands extreme combustion pressures and temperatures for long service life — verified by material certificate.
Withstands extreme combustion pressures and temperatures for long service life — verified by material certificate.
Zexel 9432611081 Reference Standard
Manufactured to Zexel original equipment specifications for reliable performance — verified by cross-reference matching.
Manufactured to Zexel original equipment specifications for reliable performance — verified by cross-reference matching.
OEM-Exact Fitment
Direct replacement for 8943933760 / 8-94393376-0 without modification — confirmed by dimensional inspection against OEM specifications.
Direct replacement for 8943933760 / 8-94393376-0 without modification — confirmed by dimensional inspection against OEM specifications.
ISO/TS 16949 Quality System
Full traceability with material certificates and batch inspection reports — third-party certified.
Full traceability with material certificates and batch inspection reports — third-party certified.
Installation Success Rate ≥ 99%
Based on repair order tracking — confirms reliable fitment across the 6HE1 / 6HH1 platform.
Based on repair order tracking — confirms reliable fitment across the 6HE1 / 6HH1 platform.
Quality Control & Verification
| QC Item | Verification Method / Standard |
|---|---|
| Spray Hole Diameter (0.33 mm) | Optical comparator, 100% inspection |
| Spray Hole Count (4) | Optical comparator, 100% inspection |
| Spray Angle (161°) | Spray pattern test bench, 100% inspection |
| Opening Pressure (17.2 MPa) | Nozzle tester, 100% inspection |
| Needle Lift | Micrometer, 100% inspection |
| Seat Tightness | Leakage test, 100% inspection |
| Material Hardness | Rockwell hardness tester, batch sampling |
| Surface Finish | Visual inspection — no burrs, no contamination |
| Spray Pattern | Spray pattern test bench, 100% inspection |
| Batch Traceability | Material lot number + production date |
| Packaging Protection | Anti-rust oil + VCI film + carton |
Installation & Maintenance Recommendations
IMPORTANT: Fuel injector nozzle service must be performed by a qualified diesel technician in a clean workshop. Always clean the injector and surrounding area thoroughly before disassembly to prevent dirt from entering the fuel system. Never reuse old copper washers.
Installation Guidelines — Reference ISUZU 6HE1 Workshop Manual
- Preparation: Clean the injector and cylinder head area thoroughly. Disconnect the fuel lines and remove the injector from the cylinder head using a proper injector puller.
- Disassembly: Clamp the injector body in a soft-jawed vise. Remove the nozzle retaining nut. Remove the old nozzle, needle, and copper washer.
- Inspection: Inspect the injector body for wear or damage. Check the nozzle seat for pitting or erosion. Inspect the injector holder for cracks.
- Cleaning: Clean all components with clean diesel fuel or approved injector cleaner. Do not use abrasive materials. Blow dry with compressed air.
- Nozzle Installation: Install the new nozzle with a new copper washer. Torque the nozzle retaining nut to specification (typically 60-70 N*m for 6HE1 injectors).
- Opening Pressure Test: Test the injector on a nozzle tester. Verify opening pressure is 17.2 MPa (175 kgf/cm²). Adjust with shims if necessary.
- Leakage Test: Verify no leakage at pressures below opening pressure. Check spray pattern for proper atomization.
- Installation: Install the injector into the cylinder head with a new O-ring and heat shield. Torque the injector clamp bolts to specification.
- Reconnection: Reconnect fuel lines. Bleed the fuel system to remove air.
- Final Check: Start the engine and check for fuel leaks. Verify smooth operation and no abnormal smoke.
Recommended Torque Values
| Fastener | Torque |
|---|---|
| Nozzle Retaining Nut | 60-70 N*m |
| Injector Clamp Bolts | Per ISUZU workshop manual specification |
| Fuel Line Nuts | Per ISUZU workshop manual specification |
Maintenance Schedule
- Every 20,000 km: Check for fuel leaks and abnormal exhaust smoke. Monitor fuel consumption.
- Every 40,000-50,000 km: Test injector opening pressure and spray pattern. Clean or replace nozzles as needed.
- Every 100,000 km: Replace fuel injector nozzles as preventive maintenance.
- When engine performance degrades: Test injectors immediately. Replace nozzles if spray pattern is irregular or opening pressure is out of specification.
- When fuel quality is poor: Inspect and clean injectors more frequently.
Packaging & Supply
- Standard Packaging: Anti-rust oil + VCI film + carton
- Custom Packaging: Neutral box, color box, or customer-branded packaging
- Suitable For: Diesel injection repair shops, ISUZU parts distributors, fleet maintenance centers
- Supply Capacity: Stable batch supply with batch-level quality reports available
- Minimum Order Quantity: 6 PCS (complete set for 6-cylinder engine)
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