Fuel Injector 400903-00074D for Doosan D24/D18 & Bobcat T-Series – Direct-Fit Replacement

Product Specifications

Compatible Models

Tired of Engine Misfires and Unexpected Downtime? Get the Right 400903-00074D Fuel Injector for Your Doosan D24 and Bobcat T-Series

Every hour your excavator or compact track loader sits idle costs hundreds — sometimes thousands — in lost productivity and contract penalties. Counterfeit or low-grade fuel injectors cause inconsistent combustion, black smoke, power loss, and repeated cylinder failures. OEM replacements take weeks to arrive and cost up to 45% more. And sourcing matching injectors across Doosan and Bobcat fleets from multiple suppliers adds risk and delays.

OEM-Equivalent Quality, Ready to Ship

XUNPO supplies this 400903-00074D fuel injector after rigorous validation: manufactured in ISO 9001-certified factories, tested for spray pattern accuracy, flow rate consistency, and pressure response at 160 MPa before shipment. With 10 years’ experience serving global repair centers and fleet operators, we ensure this direct-fit replacement delivers stable combustion and full torque output during continuous excavation, grading, or demolition work — no recalibration needed.

Where This Part Works

This injector is deployed in high-duty-cycle environments: quarry loading operations under dust and vibration, urban demolition sites with frequent cold starts, and port material handling where uptime directly impacts vessel turnaround time. In these conditions, precise fuel atomization and consistent injection timing are critical to prevent carbon buildup, valve sticking, and premature piston ring wear — especially on Doosan D24 and Bobcat T-series engines running 12+ hours per day.

Engineering Details That Matter

The nozzle tip is made from hardened stainless steel (HRC 58–62), resisting erosion from ultra-low-sulfur diesel and biodiesel blends. Internal check-valve design maintains residual pressure between cycles, eliminating post-injection dribble that causes exhaust manifold coking. The electromagnetic actuator coil is wound with Class H insulation (180°C rated), ensuring reliable operation even at sustained 95°C coolant temperatures. Dimensional tolerances are held within ±0.01 mm — verified by CMM — guaranteeing perfect fit into original D24 and T-series injector bores without adapter sleeves or machining.

The Real Cost of Wrong Parts

A $40 counterfeit injector may save $120 upfront — but leads to misfire-induced ECU fault codes, increased NOx emissions, and 30% higher fuel consumption within 200 operating hours. Replacing a damaged cylinder head due to poor atomization can exceed $2,800 in parts and labor. OEM-spec performance isn’t optional: this part meets ISO 8573-1 Class 2 air purity standards for internal cleanliness and complies with SAE J1850 waveform testing for electronic response fidelity. Total cost of ownership drops when you avoid repeat repairs, unplanned downtime, and warranty voids.

Why Customers Trust XUNPO

Packaging & Shipping

• Each injector is sealed in an individual anti-static pouch, cushioned in molded EPE foam, and packed in a reinforced 5-layer corrugated box labeled with part number and brand compatibility.
• In-stock items ship within 2–5 working days after payment confirmation.
• We offer express courier (DHL/FedEx/UPS), air freight, and sea freight — all with real-time tracking.
• Tracking numbers are emailed upon dispatch and updated daily until delivery.
• Minimum order quantity is 1 piece — ideal for urgent field repairs or diagnostic swaps.

Get Your Fuel Injectors Now

Your machine isn’t generating revenue while it’s down. Send us your part number (400903-00074D), exact model (e.g., Bobcat T590 or Doosan D24), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for bench testing. No waiting for OEM lead times. No quality compromises.

Frequently Asked Questions