Fuel Injector 0445110464 129A01-53100 Miu802181 for Jo-hn Dee-re 3038e 3039r 312gr

Product Description

This electronically controlled high-pressure common-rail diesel fuel injector assembly (Part ID: 0445110464 / 0 445 110 464; common OE cross-references include 0986435238, 1112100-ED01, 1112100ED01, etc.) is precision-engineered for the GW4D20/GW4D20B/GW4D20D series 2.0D diesel engine platform. It is widely installed in pickup trucks and SUVs such as the Haval H5, H6, Wingle 5, and Wingle 6. As a core component of the fuel supply system responsible for controlling diesel atomization quality and pulse injection timing, it precisely meters high-pressure diesel and rapidly disperses it into ultra-fine particles—triggered by millisecond-level electrical signals—to ensure thorough mixing with intake air for optimal combustion.

Designed and manufactured to standards emphasizing "micro-level precision fit" and "millisecond-level rapid response," the assembly features a core control valve spool and needle valve set crafted from aerospace-grade, hardened special alloy steel. These components undergo ultra-high-precision geometric grinding and low-friction polishing, with surfaces finished in a dense, ultra-hard coating that effectively prevents internal scratching and pressure loss caused by diesel impurities. Upon installation, drivers and mechanics will notice immediate improvements: crisp, clean cold starts and quiet, vibration-free idling. Whether climbing steep slopes, navigating stop-and-go traffic, or cruising long distances, the throttle response is sharp and agile, and acceleration is robust yet smooth. Additionally, the unit reduces black smoke emissions, delivering satisfactory fuel efficiency and a stable, refined driving experience.

Product Advantages

Standardized smart manufacturing and rigorous quality control directly from the source factory. Cost-effective sourcing by eliminating intermediary markups. By leveraging standardized production bases for end-to-end quality control and removing unnecessary middlemen, we ensure highly consistent injection pressure and flow rates across all cylinders. This approach not only cuts maintenance budgets but also provides reliable, robust power for vehicle and equipment operations.

Rigorous testing on ultra-high-pressure digital dynamic test benches. Low-quality replacements often suffer from response lag and pressure-release malfunctions—causing engine misfires and vibration—as well as wasted labor and costs due to repeated installation and adjustment. Every injection assembly undergoes automated testing before leaving the factory; flow rates and sealing integrity are precisely calibrated across various pressure ranges in simulated high-temperature, ultra-high-pressure environments. This ensures "ready-to-install" performance, drastically saving time and costs associated with installation and tuning.

Large-scale warehousing and rapid shipping response. Vehicles used for daily commuting and commercial transport are high-utilization assets; fuel system failures can lead to costly downtime and revenue loss. Our warehouse maintains ample stock, with orders packed and shipped within 24–48 hours of confirmation. This significantly reduces logistics wait times, helping fleets and owners quickly resume operations and avoid losses caused by vehicle downtime.

Special-quenched alloy needle valves with wear-resistant hardened coatings. In regions where diesel fuel has poor lubricity or high sulfur content—factors that often cause premature wear and valve sticking in precision components—we provide a superior solution. Our core components utilize high-hardness special bearing steel and anti-corrosion surface treatments. These enhancements offer exceptional fatigue and wear resistance, ensuring stable performance even under harsh conditions and prolonged high-load operation, thereby reducing the extra expenses associated with frequent repairs.

Specifications Table

Application Scenarios

Pickup trucks and off-road SUVs used for outdoor operations and long-distance cruising: Diesel pickups and SUVs operating at remote construction sites, conducting mine inspections, or traversing rugged terrain often face complex road conditions and high-load towing demands. Mechanics should replace the vehicle with this high-precision injector if the owner reports sluggish hill climbing, unresponsive acceleration, or black exhaust smoke. After installation, fuel injection is rapid and precise, delivering robust low-end torque and responsive throttle control—ensuring powerful performance even in complex driving conditions.

High-frequency operational scenarios (light commercial vans and logistics delivery): Commercial light vans and intercity logistics vehicles operate frequently in urban and suburban areas, often facing stop-and-go traffic or the need to accelerate while fully loaded. When vehicles exhibit sluggish starts, noticeable idling vibration, or abnormally high fuel consumption, the maintenance team can promptly install a complete set of electronically controlled fuel injection components. Precise fuel atomization restores smooth engine operation and improves combustion efficiency, thereby safeguarding operational timeliness and cost-effectiveness.

Frequently Asked Questions

Q: Can the product be used immediately after installation, or is it necessary to input a correction code?
A: Each fuel injector is assigned a unique flow correction code (IMA/QR code) during factory testing. We recommend using a diagnostic tool to program this code into the engine control unit (ECU) after installation to ensure optimal fuel efficiency and smooth operation.

Q: What are the stock levels and shipping lead times for bulk orders?
A: We operate our own factories and large-scale warehouses, maintaining substantial, year-round inventory for this model. Standard orders are typically packed and shipped within 24–48 hours, while bulk orders can be quickly scheduled for production.

Q: How are product quality and performance ensured before shipment?
A: All fuel injectors undergo assembly in a Class 100 cleanroom environment and 100% bench testing across all operating conditions. Tests cover critical metrics such as sealing integrity, pilot injection volume, full-load injection volume, and fuel return volume; our rigorous standards ensure that every unit shipped is of premium quality.

Q: What is the warranty period, and how is after-sales support handled?
A: We offer a 12-month warranty. Should a performance failure occur due to non-human factors within the warranty period, we provide rapid replacement or technical support to ensure a worry-free experience.