Alternator
ISO Certified Quality Assured
2-5 Day Ship In-stock items
3-12M Warranty MOQ 1 piece

12V 55A Kubota alternator 3A611-74013 for D722, V2203 & L3240 tractors

<p>Stop unexpected breakdowns and keep your Kubota tractor running strong through long workdays — this <strong>12V 55A Kubota alternator</strong> delivers stable, high-output charging even under heavy accessory loads and low-RPM operation. Built to OEM-spec tolerances with precision-machined copper windings and a reinforced rectifier bridge, it eliminates the voltage drop and premature failure common in budget units.</p> <ul> <li>Fits seamlessly on D722, V2203, and L3240/L3430/L5240 models — no bracket mods or wiring hacks needed</li> <li>Direct replacement for 3A611-74013 and 15+ cross-references including TA043-74012 and 1G728-64013</li> <li>Pre-tested at 55A continuous output (not just peak) — verified with load bank before shipping</li> <li>Backed by our 6-month warranty and fast 2-hour part verification support</li> </ul>

MOQ

1 Piece

Lead Time

2-5 Business Days

Shipping

120+ Countries

Warranty

3-12 Months

Compatible Brands

CAT Komatsu Hitachi Volvo Hyundai Doosan Kobelco SANY XCMG

Product Specifications

ParameterDetails
Part NameAlternator
Part Number (OEM Reference)3A611-74013, TA043-74012, TA043-74010, 1G728-64015, 1G728-64010, 1G728-64012, 1G728-64013, 1G728-64014, 3606220M91, 101211-2200, 101211-2201, 101211-8520, 101211-8521, 101211-8522, 146-06127, 90-29-5459, 702912351, LRA03514, LRA02198, DRA0316
Brand CompatibilityKubota, Massey Ferguson, Iseki, Husqvarna, Challenger, AGCO, Thomas Equipment
Machine Model FitmentKubota: L3240HSTC, L3240HSTC-3, L3430DT/GST/HST(C), L3540HSTC, L3710DT-HST-C, L3940HSTC, L4240HSTC, L4310DT-GST-C/HST-C, L4330DT/GST/HST(C), L4610DT-HST-C, L4630DT/GST(C)/HST, L4740HSTC, L5030GST/HST(C), L5240HSTC, L5740HSTC, M4900-CAB, M4900DT-CAB, M5700-CAB, M5700DT-CAB, M5700HDC; Kubota Wheel Loaders: R420S, R430, R520S; AGCO: ST34A, ST35, ST35X, ST40, ST40X; Challenger: MT265, MT265B, MT285 Hydro; Husqvarna: HUV 4421 DXL; Iseki: TG5390; Massey Ferguson: MF-1547, MF 1533, MF 1529, MF 1532H, MF 1540; Thomas Equipment: T95
Engine FitmentKubota D722, D1703, D1803, V2203, D1503, V1305-B, V2003, V2403, V2607, and related variants (e.g., V2203-M, D1803-CR-E4, V2403-CR-TIE4)
Voltage / Output12V / 55A
ConditionNew Aftermarket
Warranty3–12 months against manufacturing defects
PackagingOriginal box with anti-static foam and sealed carton

Compatible Models

BrandApplicable Models
KubotaL3240HSTC, L3240HSTC-3, L3430DT, L3430GST, L3430HST(C), L3540HSTC, L3540HSTC-3, L3710DT-HST-C, L3940HSTC, L3940HSTC-3, L4240HSTC, L4240HSTC-3, L4310DT-GST-C, L4310DT-HST-C, L4330DT, L4330GST, L4330HST(C), L4610DT-HST-C, L4630DT, L4630GST, L4630HST, L4740HSTC, L4740HSTC-3, L5030GST, L5030HST(C), L5240HSTC, L5240HSTC-3, L5740HSTC, L5740HSTC-3, M4900-CAB, M4900DT-CAB, M5700-CAB, M5700DT-CAB, M5700HDC, R420S, R430, R520S
AGCOST34A, ST35, ST35X, ST40, ST40X, ST34A 4WD, ST34A 4WD Hydro, ST35-4, ST35-4 Hydro, ST35-4 Shuttle, ST35X-4, ST40-4, T40-4 Hydro, ST40-4 Shuttle, ST40X-4
ChallengerMT265, MT265B, MT285 Hydro
HusqvarnaHUV 4421 DXL
IsekiTG5390
Massey FergusonMF-1547, MF 1533, MF 1529, MF 1532H, MF 1540
Thomas EquipmentT95

Tired of Alternator Failures on Your Kubota L3240 or V2203-Powered Tractor?

Every hour your Kubota D722 or V2203 engine sits idle due to a failed alternator means lost productivity — especially on tight infrastructure or farming schedules. OEM replacements cost 30–50% more and take 2–4 weeks to arrive. Counterfeit 12V alternators often fail within 3 months, causing voltage drops, battery drain, and secondary electrical damage. And sourcing the correct 3A611-74013 alternator across multiple brands like Kubota, Massey Ferguson, and AGCO has long meant juggling five suppliers.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This 12V 55A Kubota alternator meets original equipment performance specifications for charging stability, thermal tolerance, and brush life. Built in ISO-certified factories and tested before shipment, it delivers consistent output under continuous load — critical during extended tractor operation in field or loader duty. With 10,000+ SKUs in stock and 10 years’ experience supplying Kubota L3240 alternator replacement parts globally, we eliminate guesswork and delays.

Where This Part Works

This alternator operates reliably in high-dust agricultural fields, humid port environments, and high-temperature quarry sites — where voltage regulation directly affects hydraulic pump control, lighting systems, and CAN bus communication. It powers essential functions on Kubota L3430, L5240, and R430 loaders during multi-shift operations. For operators running mixed fleets including Massey Ferguson MF-1540 or AGCO ST40 tractors, this 3A611-74013 alternator ensures cross-platform compatibility without compromising reliability.

Engineering Details That Matter

The rotor uses precision-wound copper windings with Class H insulation (180°C rated), preventing thermal degradation during prolonged 55A output. Bearings are double-sealed NSK units rated for 2,500+ hours at 6,000 RPM — matching OEM service intervals. The voltage regulator is solid-state with ±0.25V regulation accuracy, eliminating overcharging that damages batteries. Housing is die-cast aluminum with optimized fin geometry for passive cooling, verified via 4-hour thermal cycling tests. All internal clearances meet ISO 2858 tolerances to ensure direct bolt-on fit with no shimming or modification required.

The Real Cost of Wrong Parts

A $45 counterfeit alternator may save upfront, but its 1.5× shorter lifespan leads to repeat labor costs, unplanned downtime, and risk of damaging sensitive electronics. In mining or municipal fleet use, one failed alternator can halt a $2,800/day machine. Our 12V 55A Kubota alternator for V2203 engine is built to ISO 9001 standards and tested per SAE J1171 for vibration resistance — reducing total cost of ownership (TCO) by extending mean time between failures (MTBF) beyond OEM benchmarks. This isn’t just a part — it’s operational continuity.

Why Customers Trust XUNPO

We partner exclusively with ISO 9001-certified manufacturers and perform incoming material inspection on every batch. Each 3A611-74013 alternator undergoes full-load performance testing at 12V/55A for 30 minutes prior to shipping. We offer 3–12 month warranty covering all manufacturing defects with no questions asked. With 10 years exporting to 120+ countries — from Brazil to Norway, Nigeria to Thailand — our track record is verified by real customers, not claims. Our 20+ technical team members respond to part verification requests within 2 hours. And because we hold 10,000+ SKUs in our Guangzhou warehouse, your Kubota D722 tractor alternator ships in 2–5 working days.

Packaging & Shipping

  • Individually boxed in rigid cardboard with molded anti-static foam to prevent terminal or housing damage during transit
  • In-stock items ship within 2–5 working days after payment confirmation
  • Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — selected based on your destination and urgency
  • Real-time tracking number provided upon dispatch, updated until door delivery
  • MOQ is 1 piece — designed for urgent maintenance and small-fleet operators

Get Your 3A611-74013 Alternator Now

Your Kubota L3240 or V2203-powered machine shouldn’t wait weeks for an alternator. Send us your part number, exact model (e.g., L3430HSTC-3), quantity, and destination — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for functional testing before bulk order. Every day delayed is revenue lost; act today.

Frequently Asked Questions

Q: Is this an original Kubota part or an aftermarket replacement?

A: This is an OEM-equivalent aftermarket alternator, manufactured in ISO 9001-certified facilities to match original Kubota specifications for voltage regulation, output stability, and mechanical fit.

Q: How do I confirm if this fits my specific tractor or engine?

A: Provide your machine model (e.g., L5240HSTC-3) and/or engine number (e.g., V2203-EBF01). Our technical team verifies compatibility and responds within 2 hours.

Q: What is your warranty policy?

A: 3–12 months warranty against manufacturing defects. If failure occurs due to material or workmanship, we replace or refund — no conditions.

Q: What is the minimum order quantity?

A: 1 piece. We support urgent repairs and small-fleet operators with no volume requirement.

Q: How fast will my order ship?

A: In-stock items ship within 2–5 working days. Express options available for time-critical orders.

Q: Can I receive a sample before placing a bulk order?

A: Yes — first-time customers may request a sample for functional testing. Contact us via WhatsApp or email to arrange.

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

Part Type Alternator
MOQ 1 Piece
Lead Time 2-5 Business Days (in-stock)
Packaging Export Standard Packaging
Quality ISO Certified Factory
Warranty 3-12 Months
Origin Guangzhou, China
Compatibility CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, SANY, XCMG

Shipping Policy

  • In-stock items dispatched in 2-5 business days
  • Multiple freight options: Express, Air, Sea
  • Real-time tracking provided
  • Ships to 120+ countries worldwide
  • Export-standard packaging for all items

Warranty & Quality

  • 3-12 month warranty on all parts
  • ISO-certified factory partners
  • Strict QC inspection before dispatch
  • Zero counterfeit policy -- guaranteed
  • Optional sample testing for new buyers
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