Engine Auxiliary Components
12V Starter Motor AT318141 for Yanmar Hitachi Excavator – Fast Dispatch
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Engine Auxiliary Components 12V 15 Teeth AT318141 Hitachi Compatible

12V Starter Motor AT318141 for Yanmar Hitachi Excavator – Fast Dispatch

AT318141 Starter Motor, 12V, 15-Tooth Spline — replacement for Hitachi Zaxis 35U/50U and Yanmar 3TNV88/4TNV88 engines.

  • Guangzhou warehouse stocked for fast-failure starters, single-piece dispatch within 2–5 working days
  • Fitment confirmed from part number, machine model, or nameplate photo when labels are worn
  • Express, air, and sea freight options with arrival timing quoted upfront

Stock status and dispatch window confirmed at time of order.

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

Stock-Ready Dispatch — Guangzhou warehouse holds this 12V starter motor for immediate release, cutting wait times when your compact excavator sits idle on site.

Technical Specifications

Parameter Value
Part Number AT318141
Product Type Starter Motor
Cross-Reference AT318141 (reference only)
Machine Fitment Zaxis 35U-2, Zaxis 35U-3, Zaxis 35U-5N, Zaxis 50U-2, Zaxis 50U-3, Zaxis 50U-5N, 3TNV88-BNHB, 3TNV88F, 3TNV88-NHBB, 4TNV88-BNHB, 4TNV88C, 4TNV88-NHBB
Voltage 12 Volts
Teeth/Splines 15 Teeth/Splines
Condition New Aftermarket
Warranty 3–12 month warranty against manufacturing defects
Standards ISO certified manufacturing

Application Suitability

Failure Symptom Replacement Urgency
Engine cranks slowly or fails to turn over Immediate — machine is non-operational until replaced
Clicking sound from starter solenoid with no engagement High — solenoid or drive gear failure requires swap
Intermittent starting in cold or damp conditions Elevated — unreliable ignition risks daily site delays
Burnt smell or visible heat damage on starter housing Critical — electrical failure may spread to wiring harness

What Keeps a Downed Machine Waiting on the Bench

A confirmed-dead starter needs a replacement on the shelf, not a quote still being compiled.

When a Hitachi Zaxis 35U or Yanmar-powered compact excavator stops starting, the clock runs against the contractor. Every hour the machine sits silent, a trench stays open or a truck waits unloaded. Yet the typical aftermarket inquiry chain — confirm the part number, check stock at a distant warehouse, wait for a freight quote — burns through days before the 12V Starter Motor AT318141 in stock fast shipping replacement even leaves a loading dock [NEED_CITE: typical lead times for aftermarket compact excavator electrical components]. The starter is a single-point failure component: when it stops working, nothing downstream matters until it is replaced.

Availability Without the Waiting Game

Keeping a 12V Starter Motor AT318141 in stock fast shipping replacement ready in Guangzhou means the dispatch conversation starts immediately, not after a week of email exchanges. The unit ships as a single piece — no minimum order threshold blocking an emergency purchase for one downed machine. Whether the failed starter came off a Zaxis 50U-3 on a residential site or a 4TNV88-powered unit in an agricultural yard, the same stocked part covers the fitment range.

How Fitment Gets Confirmed Before the Box Ships

The late-night calls we pick up often begin with a blurred photograph of a nameplate. Oil, paint, and weather strip the label off a starter motor long before the unit itself fails. A clear shot of the old starter — showing the mounting flange, terminal posts, and drive gear — lets our technical team verify the 15-tooth spline count and port orientation against your machine model. This step matters because Yanmar 3TNV88 variants across Hitachi Zaxis 35U generations carry subtle differences in connector placement [NEED_CITE: Yanmar 3TNV88 engine variant identification across equipment OEMs]. Sending a machine model alone is sometimes enough; sending a photo alongside it removes the guesswork entirely.

Reading the Specs That Actually Matter at the Bench

The 12-volt rating matches the standard electrical system on compact excavators and small loaders in the fitment list, drawing high cranking amperage through heavy-gauge cables to spin the flywheel. The 15-tooth drive gear must mesh precisely with the ring gear on the flywheel housing — one tooth difference in count or a mismatched spline profile means the starter spins freely without engaging the engine. New aftermarket condition means the unit arrives with unworn brushes, a fresh solenoid, and bearings that have not absorbed years of heat soak from a previous installation. The ISO-certified manufacturing standard behind the build ensures the internal windings and commutator meet baseline electrical tolerances, not just external dimensions.

12V Starter Motor AT318141 showing 15-tooth drive gear and terminal layout

The Cost of Shipping the Wrong Starter to Site

A starter that looks right in the listing but arrives with the wrong terminal orientation or spline count does not just delay the repair — it extends the machine's downtime by the full round-trip return cycle. The excavator sits on the bench or in the mud while the incorrect unit travels back and the correct one ships out. On a tight construction schedule, those extra days cascade into missed pour dates, idle crew hours, and penalty clauses [NEED_CITE: downtime cost multipliers for compact excavators on active construction sites]. Verification before dispatch is not a luxury step; it is the difference between a two-day turnaround and a two-week setback.

Why Procurement Teams Route Starter Orders Here

Our Guangzhou warehouse maintains stock depth on fast-failure electrical items like this starter motor, so availability is a statement of fact rather than a promise to check. One-piece ordering means a small contractor replaces a single failed starter without padding a purchase order. Part identification from a worn nameplate photograph or machine serial plate eliminates the trial-fitment gamble that plagues unverified aftermarket listings. Cross-reference verification covers superseded numbers and alternate references so that a legacy part number still resolves to the correct current unit. Express, air, and sea freight options come with arrival timing quoted before you commit, not revealed after the invoice is paid. A 3–12 month warranty against manufacturing defects backs every unit that leaves the dock.

Starter motor mounting flange and solenoid terminal detail for fitment check

Documentation & Verification

  • Commercial invoice and packing list listing AT318141 with cross-reference notation
  • Part compatibility sheet mapping your machine model to this starter variant
  • Quality inspection record confirming 15-tooth spline and terminal orientation
  • Warranty terms document covering manufacturing defects for 3–12 months
  • Packing photographs showing the unit secured for express or air transit
  • HS code and customs paperwork prepared for international clearance

Stock, Shipping & Arrival

  • Starter motor held in Guangzhou warehouse for same-week dispatch on confirmed orders
  • Express delivery reaches most international destinations within days, quoted before shipment
  • Air and sea freight options available for cost-sensitive or consolidated orders
  • Packaging rated for courier handling to protect solenoid and drive gear in transit
  • Real-time tracking number issued once the parcel leaves the warehouse

Confirm Before You Commit

Send us the part number pulled from your old starter, your exact machine model such as Zaxis 35U-2 or 50U-3, or a photograph of the nameplate and mounting face. We will confirm stock status, verify the 15-tooth spline and terminal layout match your unit, and return a freight quote with an arrival estimate matched to your urgency.

Frequently Asked Questions

Q: Is this starter motor in stock and when can it ship? A: The AT318141 starter motor is held in our Guangzhou warehouse as a stocked item. Once fitment is confirmed against your machine model, the unit is prepared for dispatch within the current week. Exact ship dates depend on the verification step and your chosen freight method.

Q: What is the minimum order — can I buy just one for an emergency repair? A: Yes. This starter motor ships in single-piece quantities with no minimum order requirement. The policy is designed for emergency breakdowns where one machine is down and waiting on one part, so you are not forced to buy inventory you do not need.

Q: How long does delivery take to my country by express, air, or sea? A: Express courier delivery typically reaches international destinations within a matter of days, while air and sea freight follow longer transit windows. We quote the estimated arrival time for each method before you confirm the order, so you can match the shipping speed to your machine's downtime tolerance.

Q: My starter nameplate is worn off — can I confirm fitment from a photo or machine model alone? A: A photograph of the old starter showing the mounting flange, drive gear, and terminal posts, combined with your machine model, is usually sufficient for our technical team to verify compatibility. This approach avoids the trial-fitment risk that comes from ordering on a part number alone.

Q: What happens if the starter arrives and doesn't fit or doesn't work? A: Every unit carries a 3–12 month warranty against manufacturing defects. If the starter is confirmed correct for your machine but fails to perform or shows a manufacturing fault, the warranty process covers resolution. Fitment verification before shipment is our first line of defense against mismatch issues.

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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