Fuel System
Fuel Injector Set for Kubota D1803/V2403 โ€“ In Stock
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Fuel System 1J808-53050 For Kubota fuel injector

Fuel Injector Set for Kubota D1803/V2403 โ€“ In Stock

Fuel Injector Set 1J808-53050 / 0445110775, 200 MPa max system pressure โ€” compatible with Kubota D1803, V2403, D1803-CR-TIE4, and V2403-CR-TIE4 engines in R430 and R430CA loaders.

  • Guangzhou warehouse stocked for same-day dispatch, one-set minimum order keeps your machine running without bulk commitment
  • Part identification confirmed from engine serial number, machine model, or worn nameplate photo within hours

Single-piece orders ship immediately with arrival timing quoted at order placement.

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 ยท In-stock items ship in 2-5 working days
  • 3-12 month warranty ยท 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Same-Day Dispatch โ€” Guangzhou warehouse holds ready-to-ship Fuel Injector Set for Kubota D1803 V2403 in stock, confirming availability before you commit to an order.

Technical Specifications

Parameter Value
Product Type Fuel Injector Set
Part Number 1J808-53050, 1J808-53052, 0445110775, 0 445 110 775, 1J808-53051, 0445110711
Cross-Reference 1J808-53050, 1J808-53052, 0445110775, 0 445 110 775, 1J808-53051, 0445110711 (for identification purposes)
Machine Fitment Kubota R430, R430CA
Engine Compatibility Kubota D1803, V2403, D1803-CR-TIE4, V2403-CR-TIE4, D1803-CR-TIE4B-KEA-1, V2403-CR-TIE4BG-KEA1
Condition New Aftermarket
MOQ 1 set
Warranty 6-month standard warranty against manufacturing defects
Material Heat-treated 42CrMo alloy steel
Max System Pressure 200 MPa
Flow Rate Deviation < ยฑ2.5%
Spray Cone Angle 120ยฐ
Orifice Tolerance ยฑ0.5 ฮผm
Sealing Surface Roughness Ra โ‰ค0.2 ฮผm
Standards ISO 9001, ISO 8536-4

Application Suitability

Failure Symptom Replacement Urgency
Black or white exhaust smoke under load Immediate โ€” combustion inefficiency damages pistons if deferred
Hard starting or misfire on cold mornings High โ€” machine cannot reach operating temperature reliably
Uneven idle with visible vibration at low RPM Moderate โ€” progressive nozzle wear worsens over operating hours
Sudden power loss during grading or loading cycles Immediate โ€” jobsite productivity halts until injector set is swapped

What Arrives Before the Machine Can Move Again

Stock confirmation and dispatch timing come before anything else.

A wheel loader sitting idle on a port yard or a municipal grading site loses value every hour it cannot run. In the repair workshops I worked in across Shandong's machinery belt, the most frustrating delays were not caused by missing parts โ€” they came from spending days confirming whether a worn nameplate pointed to a Kubota D1803 or V2403 build variant [NEED_CITE: common fuel injector identification challenges in compact diesel engines]. The Fuel Injector Set for Kubota D1803 V2403 in stock removes that wait. Send a photograph of the engine plate or the old injector body, and compatibility gets verified within hours rather than days.

Fuel Injector Set for Kubota D1803 V2403 injector nozzle and body assembly

Availability and Part Number Confirmation Flow

The moment a machine goes down, the clock starts. Our Guangzhou warehouse maintains physical stock of this Fuel Injector Set for Kubota D1803 V2403 in stock, meaning dispatch can happen the same day an order is confirmed. You do not need a readable OEM stamp to get started โ€” a photo of the existing injector, the machine model plate, or even the engine serial tag is enough for our technical team to cross-verify fitment against Kubota D1803-CR-TIE4 and V2403-CR-TIE4 variants. This matters because nozzle geometry and rail pressure calibration differ between the base D1803 and the CR-TIE4B-KEA-1 builds, and shipping the wrong variant means another round of downtime.

How Fast the Part Reaches Your Workshop

Dispatch speed only matters if transit is equally predictable. Express courier delivery typically reaches most international destinations within a defined window, and air freight serves as the fallback for larger consolidated orders [NEED_CITE: international express freight transit windows for machinery parts]. Each Fuel Injector Set for Kubota D1803 V2403 in stock ships in an individual anti-static blister pack with foam insert inside a reinforced corrugated box โ€” packaging designed to survive courier handling without damage to the orifice tip or sealing surface. We quote arrival timing at the point of order confirmation, not after payment, so you can plan the technician's schedule around a known delivery date.

Reading the Specs That Matter in the Field

The 200 MPa maximum system pressure rating tells you this injector set is built for common-rail diesel systems operating at the upper range of compact engine platforms. Orifice tolerance held to ยฑ0.5 ฮผm directly controls fuel atomization consistency across all cylinders โ€” a deviation beyond this band causes the uneven idle and cylinder-to-cylinder power imbalance that operators feel through the seat. The 120ยฐ spray cone angle is matched to the combustion chamber geometry of the D1803 and V2403 families, ensuring the fuel plume reaches the bowl edges without impinging on cylinder walls. Flow rate deviation under ยฑ2.5% means each injector in the set delivers matched volume, which is critical because replacing a single injector on a multi-cylinder rail system without matching flow characteristics introduces imbalance that accelerates wear on the remaining units [NEED_CITE: common-rail injector flow matching requirements for diesel engines].

Fuel injector sealing surface and orifice tip close-up detail

The Cost of Getting the Part Number Wrong

Ordering the incorrect injector variant for a Kubota V2403-CR-TIE4BG-KEA1 engine does not just mean a return shipment. The machine sits idle through a second diagnostic cycle, the technician re-pulls the fuel rail, and the high-pressure lines get re-torqued โ€” each step adding labor hours to a repair that should have been straightforward [NEED_CITE: diesel injector replacement labor overhead on compact common-rail engines]. Worse, a flow-mismatched injector that physically fits but delivers outside the expected deviation range can cause localized hot spots on piston crowns, leading to damage that surfaces weeks later under a different failure code. Confirming compatibility from the engine serial number before dispatch eliminates this cascade.

Why Buyers Source This Injector Set Here

Our Guangzhou warehouse stocks this Fuel Injector Set for Kubota D1803 V2403 in stock as a standing inventory line, not a drop-ship listing. Single-set minimum order means a workshop repairing one wheel loader does not need to absorb bulk quantities to access supply. Part identification works from a worn nameplate image, a machine model, or the removed injector body itself โ€” our technical team cross-references against superseded and alternate numbers including Bosch 0445110775 and Kubota 1J808-53050 variants to confirm the correct build. Self-produced and sourced lines carry identical six-month warranty coverage and the same quality inspection protocol. Sample sets ship for fitment verification before a fleet-level commitment, and express, air, and sea freight options are quoted with arrival windows upfront.

Documentation & Verification

  • Commercial invoice listing each injector set with cross-reference part numbers for customs clearance
  • Compatibility sheet mapping your engine serial to the correct D1803/V2403 injector variant (reference only)
  • Dimensional and flow inspection record confirming orifice tolerance and spray angle per set
  • Six-month warranty terms document covering manufacturing defects with replacement or refund
  • Packing photographs showing blister pack integrity before carton sealing
  • HS code and customs classification support for fuel injection equipment imports

Stock, Shipping & Arrival

  • Real-time stock status confirmed at inquiry, not after order placement
  • Express courier delivery quoted with estimated arrival date for your region
  • Individual blister packs with foam inserts protect orifice tips during transit
  • Tracking number provided at dispatch with carrier portal access for live updates
  • Arrival timing quoted for express, air, and sea options before you commit

Requesting a Stock and Delivery Check

Send the engine serial number, a photo of the existing injector body, or the machine nameplate from your Kubota R430 or R430CA. Our team confirms whether the D1803-CR-TIE4 or V2403-CR-TIE4 variant is the correct match, verifies current warehouse availability, and returns a dispatch timeline with freight options โ€” all before any order commitment is required.

Frequently Asked Questions

Q: Is this Fuel Injector Set for Kubota D1803 V2403 currently in stock and when can it ship? A: Yes, our Guangzhou warehouse holds physical inventory of this injector set as a standing stock line. Dispatch can occur the same day an order is confirmed during business hours. We verify real-time availability at the point of inquiry so you receive an accurate ship date, not an estimated one based on supplier lead times.

Q: What is the minimum quantity I can order for an emergency single-machine repair? A: One set. There is no minimum order quantity beyond a single Fuel Injector Set for Kubota D1803 V2403 in stock. This supports workshops and site supervisors who need to get one wheel loader or grader running without committing to bulk purchase quantities that tie up maintenance budgets.

Q: My engine nameplate is worn or painted over โ€” can you identify the right injector from a photo? A: Send a photograph of the removed injector body, the engine serial tag, or the machine data plate. Our technical team cross-references against Kubota D1803 and V2403 build variants including CR-TIE4 and CR-TIE4B-KEA-1 sub-models to confirm the correct part, so you do not need a legible OEM stamp to proceed.

Q: What happens if the injector set arrives and does not fit my engine? A: The six-month warranty covers manufacturing defects with replacement or refund. If a compatibility mismatch is identified upon arrival despite our pre-dispatch verification, contact our team with photographs of the fitment issue for resolution, including exchange dispatch where stock allows.

Q: How long does express delivery take to reach my region? A: Express courier transit times vary by destination, and we quote the estimated arrival window at the point of order confirmation based on your specific address. Air freight and sea freight options are also available with their respective timelines quoted upfront, so you can choose the option that matches your machine's downtime tolerance.

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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