0445110266 Fuel Injector – Bosch-Compatible Common Rail Injector for 306D1 Diesel Engine
The 0445110266 common rail solenoid injector (Bosch compatible) is a direct-fit, high-precision fuel injection component engineered for the 306D1 diesel engine – a 3.0L common rail powerplant widely used in light commercial vehicles, pickup trucks, and industrial equipment. Whether you're maintaining a fleet of urban delivery vans or repairing off-highway machinery, this injector restores correct injection timing, reduces fuel consumption, and lowers exhaust emissions. Below we examine its structural advantages, compatible applications, common failure symptoms, installation best practices, and why Rsolid engine parts is your trusted supplier.
1. Structural Advantages of the 0445110266 Injector
The 0445110266 belongs to Bosch's CRI2‑20 family of solenoid injectors, delivering robust performance for medium‑duty diesel engines:
High‑speed magnetic solenoid – Achieves opening times below 0.2 ms at 1,600 bar, enabling multiple pilot and post injections. This reduces combustion noise (diesel knock) and lowers NOx and particulate emissions.
Hardened stainless steel body – Rated for rail pressures up to 1,800 bar and resistant to corrosion, cavitation, and high thermal cycling – ideal for engines operating under continuous load.
6‑hole micro‑sac nozzle – Laser‑drilled orifices produce an ultra‑fine fuel mist matched to the 306D1‘s combustion chamber design, improving cold starts and reducing DPF (Diesel Particulate Filter) soot loading.
Balanced hydraulic servo system – Minimizes internal leakage and ensures consistent injection quantity across all cylinders, which is especially important for smooth idle and even power delivery on 4‑cylinder engines.
Industrial-grade sealing technology – Enhanced O‑rings and copper washer withstand higher vibration levels typical of commercial vehicle and off‑highway applications.
These features translate into lower operating costs, extended DPF and EGR life, and reliable performance in stop‑and‑go or heavy‑load conditions.
2. Compatible Engine & Vehicle Models – 306D1
The 0445110266 injector is specifically calibrated for the 306D1 diesel engine – a 3.0L (2,977 cc) common rail unit found in light trucks, vans, and some agricultural machinery. Known applications include:
| Brand / Manufacturer | Model / Series | Engine Code | Years (approx.) | Notes |
|---|
| JAC (Jianghuai) | N Series light truck | 306D1 | 2012–2018 | 3.0L common rail |
| Foton | Forland / Tunland | 306D1 | 2013–2019 | 3.0L diesel pickup/van |
| Dongfeng | Captain‑T / Kingrun | 306D1 | 2012–2017 | Light duty truck |
| YTO Group | Tractors (small to medium) | 306D1 | 2014–present | Agricultural use |
| Weifang Diesel | Industrial power units | 306D1 | 2013–present | Generators, pumps |
Important: Always verify the original injector part number – look for 0445110266 or local OEM cross numbers such as E306D1‑1112100 (varies by vehicle manufacturer). Some engines use injector 0445110265 or 0445110268 – check fitment before ordering.
3. Common Failure Symptoms & Installation Replacement Advice
The 306D1 engine, like many common rail diesels, experiences injector wear after 150,000–200,000 km or due to fuel contamination. Recognising early symptoms prevents costly repairs.
Typical failure symptoms of a failing 0445110266 injector:
Rough idle or intermittent misfire – Engine vibrates excessively at traffic lights; cylinder balance values exceed ±2.5 mg/stroke (visible on diagnostic tool).
Black smoke under acceleration – Over‑fuelling caused by worn needle seat or sticky solenoid.
White smoke on cold start – Poor atomisation due to clogged or worn nozzle tip.
Hard starting or extended cranking – Rail pressure cannot build because of internal leakage (return flow > 30 ml/min at idle).
Increased fuel consumption – Return fuel volume high; fuel is pumped but not properly injected.
Engine oil dilution – Diesel leaks past injector tip into cylinders, then past rings into sump. Check for rising oil level and diesel smell – dangerous.
Loss of power under load – One or more injectors delivering insufficient fuel.
Injector circuit trouble codes – Solenoid coil electrical failure (P0201–P0204 for respective cylinders).
Frequent DPF regeneration (if equipped) – Excess soot production clogs the filter quickly.
Installation & replacement best practices for 306D1 engine:
Always replace all sealing components – Use a new copper sealing washer (14mm ID), upper and lower O‑rings (Bosch seal kit 2 418 227 053 or equivalent). Never reuse old seals – they are a primary cause of combustion gas leakage.
Clean the injector bore thoroughly – Use a 14mm injector seat reamer to remove carbon deposits from the cylinder head. Even a thin carbon ridge will prevent proper sealing and cause blow‑by.
Lubricate new O‑rings with clean diesel fuel – Never use grease or engine oil, which can block fine internal passages.
Torque injector hold‑down clamp precisely – For 306D1 engines, typical specification is 28 Nm (or 25 Nm + 90°) using a new clamp bolt. Always consult the engine service manual. Over‑torquing distorts the injector body; under‑torquing causes leakage.
Replace the fuel filter – Contaminated fuel is the #1 killer of new injectors. Install a high‑quality fuel filter meeting OEM specifications.
Prime the fuel system – Use the hand primer (if equipped) or cycle the ignition to run the lift pump for 30–60 seconds. Never crank the engine without priming – dry firing damages new injectors.
Code the injector using a diagnostic tool – The 0445110266 has a 10‑character IMA (Injector Matching Adjustment) code laser‑marked on its top. Using a professional scanner (e.g., Launch X431, Autel MaxiSys, JAC diagnostic tool), enter this code into the ECU. Without coding, the engine will run unevenly and may trigger fault codes.
Perform leak‑off test after installation – Run engine at idle for 2 minutes, then measure return fuel from each injector using graduated cylinders. All should be below 20 ml/min and within 5 ml/min of each other.
Reset adaptation values – After coding, perform “Injector Quantity Adaptation” and “Fuel Pressure Adaptation” via diagnostic software.
Road test – Drive for 15–20 minutes to allow the ECU to fine‑tune adaptions.
4. Why Choose Rsolid Engine Parts as Your Supplier?
At Rsolid engine parts, we specialise in high‑quality diesel fuel injection components. Here‘s why workshops, fleets, and industrial users trust us:
100% test‑bench verified – Every 0445110266 injector is calibrated on a professional common rail test bench (up to 2,000 bar) with flow balance guaranteed within ±2%.
Bosch‑compatible, OE fitment – Direct replacement for original injectors; matches all dimensions, solenoid resistance, and spray angles.
New build, not remanufactured – All units are newly manufactured to Bosch specifications, not reconditioned or repaired.
Competitive wholesale pricing – Ideal for volume buyers, repair shops, and individual owners.
Fast global shipping – Stock available from our warehouses in Asia, Europe, and North America.
Expert technical support – Our team helps with IMA coding, torque specifications, and troubleshooting for 306D1 and similar engines.
12‑month warranty – Against manufacturing defects and premature wear.
📧 Contact us for a quote or technical assistance:
✉️ Email: amy@rinjector.com
🌐 Website: www.rinjector.com
