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DLLA156P905 Fuel Injector Nozzle for 095000-5942 – Precision Common Rail Diesel Upgrade

DLLA156P905 Fuel Injector Nozzle for 095000-5942 – Precision Common Rail Diesel Upgrade

1.PART NUMBER: DLLA156P905
2.Injector NUMBER: 095000-5942
3.Engine: Compatible with Chevrolet Colorado Duramax, GMC Canyon Diesel, Isuzu D-Max 3.0L
4.Brand: XingMa
5.Payment terms: T/T, Western union, PayPal
6.Origin: made-in-China
7.Shipping period: 3-5 days
8.SERIES: Common Rail, Turbo Diesel, Euro V/VI Compliant, Pickup & Commercial Vehicles

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Product Introduction

Designed for modern high-pressure common rail systems, the DLLA156P905 fuel injector nozzle (095000-5942) delivers exceptional fuel atomization and combustion stability across diverse diesel platforms. This service-grade component directly addresses the need for reliable injection precision in both light-duty pickup trucks and heavy commercial vehicles, ensuring that fuel is metered consistently even under fluctuating rail pressures. Manufactured to stringent tolerances, this nozzle helps workshops resolve drivability complaints linked to poor spray patterns, while its wear-resistant metallurgy extends service intervals in demanding fleet applications.

🚗 Specifications & Technical Parameters

The DLLA156P905 nozzle operates at injection pressures up to 2,000 bar, with a sac volume of 0.6 mm³ and flow rate of 560 cc/min at 100 bar test pressure. Its 16-degree spray angle and 5-hole design ensure optimal penetration and uniform droplet distribution, directly influencing combustion efficiency and exhaust gas temperature management. Manufactured from heat-treated alloy steel with a DLC (diamond-like carbon) coating, this nozzle resists abrasive wear and acid corrosion caused by high-sulfur fuels. Critical dimensional parameters include a needle lift of 0.25 mm and opening pressure set at 230 bar, making it fully interchangeable with OEM specifications. These parameters are essential for technicians recalibrating common rail injectors after extended use, as deviations often lead to rough idling or black smoke emissions.

🔧 Compatible Engine Families & Vehicle Applications

This nozzle is broadly compatible with Bosch CP3 and Denso HP4 pumping systems, fitting engines such as the Chevrolet Colorado 2.8L Duramax (2016–2022), GMC Canyon Diesel, Isuzu D-Max 3.0L 4JJ1, and Isuzu 4HK1/6HK1 used in medium-duty trucks. It also serves agricultural machinery like the John Deere 9.0L S450 and industrial power units from Komatsu (WA470-5, PC450LC-7) and SDEC Shangchai (SC8DK/9DK). Cross-reference part numbers include DLLA127P945 for 095000-6322, DLLA125P889 for RE546776/RE528407, and DLLA158P1133 for 095000-0640, ensuring broad interchangeability. Workshops frequently encounter these nozzles in fleet vehicles, construction loaders, and harvesters, where injector degradation directly impacts fuel consumption and torque response under sustained loads.

🛠️ Installation Best Practices for Repair Shops

Prior to installation, always ultrasonically clean the injector body and replace copper sealing washers to prevent combustion gas leakage. The DLLA156P905 requires precise torque application – 70 Nm for the retaining nut and 40 Nm for the high-pressure connection – using a calibrated torque wrench to avoid distorting the nozzle body. After fitting, perform a leak-off test at idle and under load to confirm return flow rates remain within 20–30 ml/min; excessive return indicates worn control valves or improper seating. For engines with start-of-injection adaptation, reset fuel trim values via diagnostic software to synchronize the new nozzle with the ECU fuel map. Always inspect the injector bore for carbon deposits and use anti-seize compound on threads to ease future servicing. These steps reduce nozzle sticking risks and ensure that the spray pattern aligns with factory specifications, directly affecting cold-start performance and particulate filter regeneration intervals.

📊 Common Rail System Service Value – Comparative Wear Data

Parameter	DLLA156P905 (New)	Worn Nozzle (150,000 km)	Service Impact
Flow deviation	±2.5%	+12% to +18%	Uneven cylinder loading, increased NOx
Needle lift response	0.25 ms	0.42 ms	Delayed injection, fuel dilution of oil
Return fuel volume	22 ml/min	45 ml/min	HP pump overwork, heat buildup
Spray cone angle	16°	13°–14°	Poor air-fuel mixing, soot formation
Opening pressure drift	230 ±5 bar	195–210 bar	Reduced combustion peak pressure, power loss

❓FAQ – Quick Answers for Diesel Shops & Distributors

Q1: Can I install just one DLLA156P905 nozzle, or must I replace all cylinders?
A: Single replacement is physically possible, but we strongly advise replacing all nozzles on the same engine bank to maintain balanced cylinder pressure and avoid uneven EGR operation. Mismatched flow rates often trigger fuel trim errors and rough idle.

Q2: What is the expected service life under heavy towing and off-road conditions?
A: With proper 2-micron filtration and regular water separator maintenance, expect 250,000–300,000 km. In extreme dust or high-sulfur fuel regions, reduce inspection intervals to 80,000 km and test needle lift for early stiction signs.

Q3: How do I verify DLLA156P905 matches the original 095000-5942 injector without disassembly?
A: Cross-check the 8-digit laser code on the injector body. Also confirm the ECU calibration ID – if the vehicle runs Bosch EDC17 or Denso SH2 controllers, this nozzle is mechanically compatible, though you must reprogram IQA codes via diagnostic tools.

Q4: Does this aftermarket nozzle affect the HP pump warranty or rail sensor accuracy?
A: No – it meets ISO 8984-1 durability standards and does not alter rail pressure beyond OEM tolerances. However, always document opening pressure and return flow before/after installation to protect against fuel contamination claims.

Q5: How does this aftermarket nozzle affect warranty on the HP pump or rail pressure sensor?
A: This nozzle meets or exceeds ISO 8984-1 durability standards and does not alter rail pressure dynamics beyond OEM tolerances. However, always document opening pressure and return flow before/after installation; if a pump failure occurs within 500 km, root-cause the fuel lubricity or contaminated fuel – our nozzle does not increase pump shear stress.

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