Fuel System
Fuel Injector 1J801-53052 0445110777 for Kubota V2403 D1803 Engine KX040-4 L3301F L3901F L4701F MX5200F MX4800H
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Fuel System 0445110777 injector 1J801-53052 Fuel Injector Kubota D1803 Diesel Fuel Injector

Fuel Injector 1J801-53052 0445110777 for Kubota V2403 D1803 Engine KX040-4 L3301F L3901F L4701F MX5200F MX4800H

Restore peak engine performance and eliminate uneven fuel atomization with the 1J801-53052 Fuel Injector, designed to deliver precise fuel delivery for Kubota V2403 and D1803 engines. This set ensures balanced power output, preventing vibrations and "Check Engine" lights that often plague mixed old/new injector setups.

  • Direct replacement for OEM part numbers 1J801-53052, 0445110777, and 1J801-53051, fitting KX040-4 excavators and L3301F/L3901F tractors
  • Engine-specific calibration for D1803-CR-E4 and V2403-CR-TE4 models ensures optimal combustion efficiency
  • Replace as a complete set to maintain uniform wear patterns and extend engine lifespan

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece · In-stock items ship in 2-5 working days
  • 3-12 month warranty · 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Product Specifications

ParameterDetails
Part NameFuel Injector Set
Part Number (OEM Reference)1J801-53052, 0445110777, 1J80153051, 1J801-53051, 1J801-53050, 1J80153050, KEARI-1J801, KEARI1J801, 0 445 110 777, 0-445-110-777, 1J801-5305-2
Brand CompatibilityKubota
ConditionNew Aftermarket
Warranty3–12 months against manufacturing defects

Compatible Models

BrandApplicable Models
Kubota ExcavatorKX040-4, U48-5
Kubota TractorL3301DT, 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
Kubota EngineV2403, D1803, D1803-CR-E4, D1803-CR-TE4, V2403-CR-E4, V2403-CR-TE4, D1803-CR-E4B-SBFU-2, V2403-CR-E4B-SBFU-1, V2403-CR-E4B-TXN-1

Experiencing Engine Vibrations or "Check Engine" Lights? Replace Your Kubota V2403/D1803 Fuel Injectors with 1J801-53052 0445110777 Set

Equipment downtime costs construction and agricultural operations thousands of dollars daily. Many operators face frustrating delays waiting 2-4 weeks for overpriced OEM fuel injectors, or worse, installing counterfeit parts that fail prematurely—causing二次损坏 and extended repair times. For Kubota V2403 and D1803 engine owners, finding a reliable replacement that balances quality, price, and availability has long been a challenge.

OEM-Equivalent Performance, Available for Immediate Shipment

Our 1J801-53052 0445110777 fuel injector set solves these pain points with precision-engineered components that match OEM specifications. Backed by 10 years of global export experience and partnerships with ISO-certified factories, we ensure each injector undergoes rigorous pre-shipment testing to deliver consistent fuel atomization and combustion efficiency. Unlike OEM parts that cost 30-50% more, our aftermarket solution provides the same reliability without the premium price tag. With 10,000+ SKUs in our Guangzhou warehouse, this Kubota V2403 fuel injector set is available for shipping within 2-5 working days—critical for minimizing downtime during harvest or construction seasons.

Where This Part Works: Heavy-Duty Applications Demanding Precision

Designed for Kubota's V2403 and D1803 diesel engines, these injectors power critical machinery in construction, agriculture, and material handling. Whether your KX040-4 excavator is working on a building site, your L3301F tractor is tending crops, or your MX5200F is handling landscaping tasks, fuel injectors play a vital role in engine performance. They deliver precise fuel quantities at high pressure, directly impacting power output, fuel economy, and emissions. In dusty, high-vibration environments—common in mining, quarrying, or farm operations—substandard injectors can lead to uneven fuel distribution, reduced horsepower, and increased exhaust emissions.

Engineering Details That Matter: Why Precision Counts

Each 1J801-53052 injector is crafted with tight tolerances to ensure seamless compatibility with Kubota engines. The nozzle spray pattern is optimized for complete fuel atomization, preventing incomplete combustion that causes carbon buildup and engine knock. The solenoid valve response time—critical for maintaining fuel injection timing—is calibrated to match OEM specifications, ensuring smooth idling and acceleration. High-quality materials resist wear from abrasive diesel fuels, while precision-machined components minimize fuel leakage and pressure loss. Most importantly, we recommend replacing injectors as a full set: mixing new and old units creates uneven fuel delivery, leading to vibrations, reduced power, and "Check Engine" lights that disrupt operations.

The Real Cost of Cheap Injectors: Why Quality Saves Money

Choosing bargain-priced fuel injectors may seem like a cost-saving move, but hidden expenses quickly erase initial savings. Counterfeit injectors often have 1.5x shorter lifespans, requiring frequent replacements. Poor fuel atomization increases fuel consumption by up to 15%, raising operating costs. Worst of all, failed injectors can damage cylinders, pistons, or turbochargers—resulting in repair bills that dwarf the cost of quality parts. Our 1J801-53052 set, backed by a 3–12 month warranty, delivers long-term value by reducing downtime, improving fuel efficiency, and preventing expensive engine damage. It’s not just a replacement part—it’s an investment in your equipment’s reliability.

Why Customers Trust XUNPO for Kubota Parts

Our reputation is built on 10 years of serving 120+ countries with consistent quality and support. We partner only with ISO-certified factories, conducting rigorous incoming material inspections and 100% performance testing before shipment. Our 20+ member technical team verifies part compatibility within 2 hours, ensuring you get the right injector for your Kubota model. With a large inventory in Guangzhou, we support MOQ 1 orders for urgent repairs, and our 24/7 customer service ensures you’re never left waiting. Thousands of aftermarket distributors, repair centers, and fleet operators trust us because we deliver on our promise: OEM-equivalent parts at competitive prices, when you need them.

Packaging & Shipping

  • Each injector is individually packaged in anti-static bags, with the full set secured in a reinforced cardboard box to prevent damage during transit
  • In-stock items shipped

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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10+
Years Export
10K+
SKUs Available
120+
Countries Served
24/7
Expert Support