Product Specifications
| Parameter | Details |
|---|
| Part Name | Fuel Injector |
| Part Number (OEM Reference) | 1J801-53052, 0445110777, 0 445 110 777, 1J801-53051, 1J801-53050 |
| Brand Compatibility | Kubota |
| Machine Model Fitment | KX040-4, U48-5, L3301F, L3901F, L4701F, MX4800H, MX5200F, and 50+ Kubota models (see full list below) |
| Engine Compatibility | Kubota V2403, D1803, V2403-CR-E4, D1803-CR-TE4, V2403-CR-E4B-SBFU-1, D1803-CR-E4B-SBFU-2 |
| Condition | New Aftermarket |
| Warranty | 6-month standard warranty against manufacturing defects |
| Packaging | Individual anti-static bag + foam insert + reinforced cardboard box |
Compatible Models
| Brand | Applicable Models |
|---|
| Kubota | 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 Engine Misfires and Unexpected Downtime? Get the Right Kubota Fuel Injector 1J801-53052 for Your V2403 or D1803 Engine
Every hour your Kubota excavator or tractor sits idle due to poor fuel atomization costs hundreds in lost productivity — especially on tight construction schedules. Counterfeit injectors fail within weeks, triggering “Check Engine” lights and uneven power delivery. OEM replacements take 3–4 weeks and cost up to 45% more, delaying critical maintenance during peak season.
OEM-Equivalent Performance, Shipped from Guangzhou Warehouse in 2–5 Days
This Kubota fuel injector delivers factory-matched spray pattern, injection timing, and pressure response — validated by pre-shipment performance testing at our ISO-certified partner factories. With 10 years’ experience supplying Kubota engine parts globally, we support over 50 models across excavators like KX040-4 and tractors including L3901F and MX5200F — all with verified fitment and real-world reliability.
Where This Part Works
This injector operates under high-pressure diesel combustion cycles in demanding environments: earthmoving on construction sites, continuous duty in agricultural fields, material handling at ports, and high-cycle demolition work. It endures repeated thermal cycling, vibration loads up to 12G, and exposure to dust, moisture, and temperature extremes — making precise calibration and robust sealing non-negotiable for consistent torque and emissions compliance.
Engineering Details That Matter
Each injector is machined from hardened stainless steel body (HRC 58–62) to resist wear from abrasive fuel contaminants. The nozzle tip features micro-precision orifices (±0.5 µm tolerance) ensuring uniform fuel atomization and complete combustion. A dual-stage pressure-actuated needle valve guarantees accurate opening pressure (270 ± 5 bar) and zero dribble after injection — preventing carbon buildup and cylinder wash-down. All internal seals meet ISO 6162-1 standards for high-pressure hydraulic compatibility, eliminating leakage even after 10,000+ operational cycles.
The Real Cost of Wrong Parts
A $35 counterfeit injector may save upfront, but causes incomplete combustion, increased NOx and soot output, and premature piston ring wear — leading to a $2,200+ top-end rebuild within 6 months. OEM-equivalent parts reduce total cost of ownership (TCO) by extending service intervals, maintaining fuel efficiency within ±1.2% of factory spec, and avoiding downtime penalties common in municipal or rental fleet contracts. Our injectors comply with ISO 8535-1 and match OEM flow rate tolerances (±2.5%) — verified per unit before shipment.
Why Customers Trust XUNPO
Only ISO 9001-certified factories supply our fuel injectors — each batch undergoes incoming material inspection for alloy composition and hardness. Every unit is tested for leak-off volume, injection timing, and pop pressure using Bosch EPS 815 test benches. We offer 6-month warranty covering manufacturing defects — no restocking fees, no hassle. With 10 years exporting to 120+ countries, our technical team has verified over 12,000 Kubota part applications. You’ll get an expert reply within 2 hours when you send your machine model. And because we hold 10,000+ SKUs in our Guangzhou warehouse, your order ships in 2–5 working days — no backorders, no delays.
Packaging & Shipping
- Individually sealed in anti-static bags with molded EPE foam cushioning inside double-walled corrugated boxes
- In-stock items ship within 2–5 working days after payment confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted based on destination and urgency
- Real-time tracking number provided upon dispatch, updated until door-to-door delivery
- MOQ is 1 piece — ideal for urgent field repairs or verification before bulk orders
Get Your Kubota Fuel Injectors Now
Your equipment isn’t generating revenue while waiting. Send us your part number (e.g., 1J801-53052), exact machine model (e.g., L3901F), and required quantity — we’ll email a competitive quote within 24 hours. First-time buyers can request one sample for functional testing before placing a full set order. Every set shipped today helps avoid unplanned shutdowns tomorrow.
Frequently Asked Questions
Q: Is this an original Kubota part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket fuel injector, manufactured in ISO 9001-certified facilities to match Kubota’s dimensional, material, and performance specifications — not sourced from Kubota’s OEM supply chain.
Q: How do I confirm this fits my specific Kubota machine?
A: Send us your machine’s full model number (e.g., MX5200F) and serial prefix — our technical team will verify compatibility and cross-reference with engine build data within 2 hours.
Q: What is the warranty coverage?
A: 6-month warranty against manufacturing defects. If failure is confirmed as attributable to material or workmanship, we issue full replacement with prepaid return label.
Q: What is the minimum order quantity?
A: 1 piece — no exceptions. We support urgent single-unit replacements for field technicians and small repair shops.
Q: How fast can I receive the injectors?
A: In-stock items ship from Guangzhou within 2–5 working days. Express shipping options deliver to North America/Europe in 4–7 business days; sea freight available for larger orders.
Q: Can I request a sample before ordering a full set?
A: Yes — first-time customers may request one sample injector (1J801-53052) for functional validation. Sample fee is refundable against your first bulk order.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
