4PCS Fuel Injector 400903-00074D 7275454 28337917 for Doosan D24 D18 Bobcat Compact Track Loader T450 T550 T590 T595 T630 T650

Product Specifications

Compatible Models

Tired of Engine Misfires and Unexpected Downtime? Get the Right Fuel Injector 400903-00074D for Your Doosan D24/D18 and Bobcat T-Series

Every hour your compact track loader or Doosan engine sits idle costs hundreds — even thousands — in lost productivity, rental penalties, or missed deadlines. Counterfeit fuel injectors fail within weeks, causing rough idling, power loss, and repeated diagnostic time. OEM replacements take 18–25 days to arrive and cost up to 42% more. And sourcing parts across multiple suppliers for mixed fleets adds administrative overhead and compatibility risk.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This fuel injector 400903-00074D is manufactured in ISO 9001-certified factories and tested before shipment to match original equipment performance. With 10 years of global export experience and over 10,000 SKUs in stock, XUNPO delivers direct-fit replacement fuel injectors that install without modification — supporting critical maintenance cycles for Doosan D24-powered excavators and Bobcat T-series compact track loaders used in daily earthmoving, grading, and site prep operations.

Where This Part Works

This injector operates under high-pressure diesel injection cycles (up to 180 MPa) in demanding environments: urban construction sites with frequent start-stop operation, quarry loading zones with dust and vibration exposure, and port material handling where uptime directly impacts vessel turnaround. It’s engineered for continuous use in temperatures ranging from −25°C to +95°C — making correct specification essential for combustion stability and emissions compliance on Tier 3-compliant engines.

Engineering Details That Matter

The nozzle body is precision-machined from heat-treated stainless steel (AISI 420), providing resistance to carbon buildup and thermal fatigue at peak cylinder pressures. The solenoid actuator uses a calibrated 12V DC coil with ±3% tolerance to ensure consistent injection timing across load ranges. Sealing surfaces meet ISO 4406:2017 cleanliness Class 16/14/11 standards to prevent fuel leakage into the valve cover. Dimensional tolerances are held to ±0.01 mm on critical mating surfaces — guaranteeing full interchangeability with original Doosan and Bobcat assemblies without adapter kits or shims.

The Real Cost of Wrong Parts

A $45 counterfeit injector may save $20 upfront — but often fails within 150 operating hours, triggering secondary damage to the high-pressure pump, ECU recalibration, and 6+ hours of labor to replace. Industry data shows incorrect fuel delivery increases NOx emissions by 22% and reduces fuel efficiency by 7.3%. When factoring downtime, labor, diagnostics, and rework, the total cost of ownership (TCO) for low-grade parts is 3.8× higher than certified aftermarket alternatives meeting OEM flow-rate and spray-pattern specifications (ISO 13001:2021).

Why Customers Trust XUNPO

Packaging & Shipping

• Each injector sealed in anti-static pouch, mounted on molded foam insert, packed in reinforced corrugated box with brand labeling
• In-stock items ship within 2–5 working days after payment confirmation
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — selected per order volume and urgency
• Real-time tracking number provided upon dispatch, updated until final delivery
• Minimum order quantity: 1 piece — supports urgent field repairs and single-machine maintenance

Get Your Fuel Injector 400903-00074D Now

Your machine isn’t generating revenue while waiting for parts. Send us your part number, exact model (e.g., “Bobcat T650 S/N 1234567”), and required quantity — we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before placing bulk orders. Stock is limited — confirm availability today to avoid project delays.

Frequently Asked Questions