Fuel System
Fuel Injector 1J801-53052 for Kubota V2403/D1803 – OEM-equivalent performance
<p>Stop vibrations, prevent “Check Engine” lights, and restore smooth, balanced power — just replace your <strong>Kubota fuel injector</strong> set as intended. Mixing old and new injectors causes uneven fuel atomization, which strains the engine and cuts uptime.</p> <p>These 1J801-53052 units are precision-matched to OEM flow rates and pop pressure (265 bar), so they deliver identical spray patterns and timing — critical for CR-E4 and CR-TE4 common rail engines. We pre-test each injector on a Bosch EPS 815 test bench before shipping.</p> <ul> <li><strong>Replace as a full set</strong> — ensures consistent performance across all cylinders</li> <li>Fits Kubota V2403 & D1803 engines, plus KX040-4, L3301F, L4701F, MX5200F, and 40+ other models</li> <li>Direct replacement for 0445110777 (Bosch number) — no adapters or modifications needed</li> <li>In-stock in Guangzhou; ships in 2–5 working days with real-time tracking</li> </ul>
Lead Time
2-5 Days
Warranty
3-12 Months
Min. Order
1 Piece
Ships To
120+ Countries
Request a Quote
Response within 24 hours
Product Details
Especificaciones del producto
Parámetro
Detalles
Nombre de la pieza
Número de pieza (Referencia OEM)
Compatibilidad de Marca
Kubota
Ajuste del modelo de máquina
Ajuste del motor Condición
Nuevo Aftermarket
Garantía
Garantía estándar de 6 meses contra defectos de fabricación
Embalaje
Modelos Compatibles
Marca
Modelos aplicables
Kubota
When fuel injectors wear unevenly—especially after 3,000–5,000 operating hours—engine performance degrades rapidly: misfires increase, fuel consumption spikes, and unburned hydrocarbons damage the DPF. Mixing new and old injectors is a common but costly mistake, causing vibration, poor cold starts, and repeated diagnostic trouble codes. OEM lead times of 3–4 weeks mean extended downtime for rental fleets and contractors. This 1J801-53052 fuel injector delivers consistent spray pattern, precise needle lift timing, and pressure stability up to 220 MPa—matching original Kubota specifications. Built by ISO 9001-certified factories with 10+ years of engine component export experience, each unit undergoes hydraulic pressure hold testing and dynamic flow calibration before shipment. It’s engineered for real-world use in excavator hydraulic load cycles and tractor PTO duty cycles—ensuring stable combustion during continuous operation under variable loads. Dónde funciona esta pieza
This injector supports critical applications across construction sites, agricultural operations, and municipal public works fleets—where engines run at partial load for extended periods and endure dust, temperature swings, and frequent start-stop cycles. In Kubota KX040-4 mini-excavators working in urban demolition or trenching, accurate fuel metering prevents carbon buildup and maintains torque response. For L3301F tractors used in rice paddy leveling or loader bucket loading, consistent injection ensures smooth low-RPM power delivery and reduces operator fatigue. Detalles de ingeniería que importan
The nozzle body is precision-machined from heat-treated 42CrMo alloy steel (HRC 48–52), resisting erosion from high-pressure diesel pulses over 10,000 psi. The control valve uses a hardened stainless-steel plunger with ±0.5 µm dimensional tolerance—critical for repeatable opening pressure and minimal lag. Sealing surfaces are lapped to Ra ≤ 0.2 µm finish to prevent internal leakage that causes rail pressure drop and erratic injection timing. All O-rings meet SAE J2044 standards for diesel fuel compatibility and thermal cycling resistance from –25°C to +120°C. El verdadero costo de las piezas incorrectas
A $35 counterfeit injector may fail within 200 hours—causing cylinder washdown, piston ring scoring, and eventual crankcase oil dilution. Replacing one failed injector often leads to secondary damage requiring head gasket, valve train, or even crankshaft repair—adding $1,200+ in labor and parts. Our 1J801-53052 meets ISO 4020 and Kubota QSK-001 test protocols for durability, delivering 5,000+ operational hours under full-load bench validation. Total cost of ownership drops significantly when factoring in uptime, fuel efficiency (tested 3.2% improvement vs worn units), and reduced service intervals. Por qué los clientes confían en XUNPO
– Only partner with ISO 9001-certified factories; incoming material inspection performed on 100% of batches Your Kubota engine shouldn’t wait weeks for OEM parts—or risk downtime from mismatched injectors. Send us your machine model (e.g., KX040-4), quantity needed, and destination country—we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk order. Every hour your machine sits idle costs revenue—act today. Preguntas Frecuentes
P: ¿Es esta una pieza original de Kubota o un reemplazo de posventa?
A: This is an OEM-equivalent aftermarket fuel injector, manufactured by ISO 9001-certified factories to match Kubota’s dimensional, material, and performance specifications—not a recycled or counterfeit unit. Q: How do I confirm if this injector fits my specific Kubota machine? A: Provide your exact machine model (e.g., L3301F) and serial number prefix (if available); our technical team will verify compatibility and reply within 2 hours. Q: ¿Cuál es la cobertura de garantía? A: 6-month standard warranty against manufacturing defects; extendable to 12 months per commercial agreement. Defective units are replaced free of charge upon return confirmation. P: ¿Cuál es la cantidad mínima de pedido?
A: 1 piece—no bulk requirement. Ideal for emergency repairs or verifying fitment before larger orders. Q: How fast can I receive the injectors after ordering? A: In-stock items ship within 2–5 working days. Express shipping options (DHL/FedEx) deliver to most North American and European addresses in 3–6 business days. Q: ¿Puedo solicitar una muestra antes de realizar un pedido al por mayor?
A: Yes—first-time customers may request one sample unit for physical testing and fitment validation. Sample fee is refundable against first bulk order. Ready to order or need a quote?
Fuel Injector
1J801-53052, 0445110777, 0 445 110 777
KX040-4, U48-5, L3301F, L3901F, L4701F, MX5200F, MX4800H, and other models listed below
Kubota V2403, D1803, V2403-CR-E4, V2403-CR-TE4, D1803-CR-E4, D1803-CR-TE4, D1803-CR-E4B-SBFU-2, V2403-CR-E4B-SBFU-1, V2403-CR-E4B-TXN-1
Individual anti-static bag + foam insert + reinforced cardboard box
KX040-4, U48-5, L3301DT, L3301F, L3301H, L3302, L3302H, L3560DT, L3560GST, L3560HST, L3560HSTC, L3560HSTC-LIMITED, L3560HST-LIMITED, L3901DT, L3901F, L3901H, L3902, L3902H, L4060DT, L4060GST, L4060HST, L4060HSTC, L4060HSTC-LIMITED, L4060HST-LIMITED, L47, L4701DT, L4701F, L4701H, L4760GST, L4760HST, L4760HSTC, L4802DT, L4802DTM, L4802F, L4802H, L5060GST, L5460HST, L5460HSTC, L6060HST, L6060HSTC, M5660SUH, M5660SUHD, M62, MX4800DT, MX4800F, MX4800H, MX5200DT, MX5200F, MX5200H, MX5400DT, MX5400DTC, MX5400F, MX5400H, MX5400HSTC, MX5800H, MX6000H, MX6000HSTC
Tired of Rough Idle, Power Loss, or Check Engine Lights on Your Kubota V2403 or D1803 Engine?
OEM-Equivalent Performance, Ready to Ship from Guangzhou Warehouse
– 100% functional performance testing before shipment—including static flow rate, pop pressure, and leak-off volume verification
– 6-month standard warranty (extendable to 12 months per agreement); zero-questions-asked replacement for verified manufacturing defects
– 10 years exporting to 120+ countries including USA, Germany, Australia, Nigeria, and Chile—with documented repeat orders from 73% of clients
– 20+ technical specialists with field service backgrounds; part cross-reference and fitment confirmation provided within 2 hours
– Guangzhou warehouse holds 10,000+ SKUs in stock—including 1J801-53052—enabling dispatch within 2–5 working daysPackaging & Shipping
Get Your Fuel Injectors Now
Send your part number, machine model, and quantity — we’ll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
Compatible Brands
Our parts are engineered to meet or exceed OEM specifications. Please provide your machine model number and serial number when inquiring to confirm exact compatibility.
How to Confirm Compatibility
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1
Find Your Machine Model
Locate the model plate on your machine, typically near the cab or engine compartment.
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2
Note the Part Number
Check your parts manual or existing part for the OEM part number.
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3
Contact Our Team
Our technical team verifies compatibility within 2 hours. Send us the details via the inquiry form or WhatsApp.
Shipping Information
Express Shipping
DHL, FedEx, UPS -- 3-7 business days worldwide
Sea Freight
Cost-effective option for bulk orders -- 15-35 days
Real-Time Tracking
Tracking number provided after shipment. 24/7 support available.
Warranty Policy
All parts come with manufacturer warranty. Duration varies by product category.
- Manufacturing defects covered in full
- Free replacement or full refund for defective parts
- Post-delivery technical support included
- Sample testing available for first-time buyers
ISO Certified Quality
All parts sourced from ISO-certified factories with strict QC processes and material traceability.
Competitive Pricing
Save 30-50% vs OEM prices without compromising quality. Transparent pricing with no hidden fees.
Fast 2-5 Day Shipping
Large Guangzhou warehouse with 10,000+ SKUs in stock. Most orders ship within 2-5 business days.
10+ Years Experience
20+ professionals with deep technical knowledge serving 1,000+ clients across 120+ countries.
24/7 Technical Support
Dedicated support team available around the clock. Part verification within 2 hours of inquiry.
Global Reach
Flexible shipping solutions including express and sea freight to 120+ countries with real-time tracking.
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Need a Custom Quote?
Our technical team responds within 24 hours. MOQ 1 piece. Ships to 120+ countries from our Guangzhou warehouse.