Product Specifications
| Parameter | Details |
|---|
| Part Name | 12V Starter Motor |
| Part Number (OEM Reference) | AT318141 |
| Brand Compatibility | Yanmar, Hitachi |
| Machine Model Fitment | Yanmar 3TNV88-BNHB, 3TNV88F, 3TNV88-NHBB, 4TNV88-BNHB, 4TNV88C, 4TNV88-NHBB; Hitachi Zaxis 35U-2, Zaxis 35U-3, Zaxis 35U-5N, Zaxis 50U-2, Zaxis 50U-3, Zaxis 50U-5N |
| Voltage | 12 Volts |
| Teeth/Splines | 15 Teeth/Splines |
| Condition | New Aftermarket |
| Warranty | 6 months against manufacturing defects |
| Packaging | Original XUNPO branded box with anti-static foam and reinforced carton |
Compatible Models
| Brand | Applicable Models |
|---|
| Yanmar | 3TNV88-BNHB, 3TNV88F, 3TNV88-NHBB, 4TNV88-BNHB, 4TNV88C, 4TNV88-NHBB |
| Hitachi | Zaxis 35U-2, Zaxis 35U-3, Zaxis 35U-5N, Zaxis 50U-2, Zaxis 50U-3, Zaxis 50U-5N |
Tired of Starter Failures on Yanmar 3TNV88 & Hitachi Zaxis 35U-2/50U-2? Get the AT318141 Starter Motor You Can Rely On
Every hour your excavator sits idle costs hundreds — or thousands — in lost productivity. A failed starter motor halts digging, grading, or loading operations instantly. Many operators face repeated failures from low-grade replacements, extended OEM lead times, or mismatched parts that won’t engage properly. With aging Yanmar 3TNV88 and Hitachi Zaxis U-series fleets operating across construction sites and quarries, selecting the right starter is not optional — it’s operational necessity.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This AT318141 starter motor delivers OEM-equivalent performance for Yanmar and Hitachi applications, backed by 10 years of global export experience and strict quality control. Every unit is produced in ISO-certified factories, undergoes pre-shipment functional testing, and is verified for correct voltage response, gear engagement, and torque output. Designed specifically for engine cranking under real-world conditions — including cold starts in mining environments and high-cycle operation on rental fleet machines.
Where This Part Works
The AT318141 starter motor operates reliably in demanding work environments: urban excavation sites with tight schedules, remote quarry operations where downtime means missed delivery windows, port material handling equipment subject to salt exposure, and demolition contractors relying on consistent machine availability. It delivers consistent 12V cranking power to engines driving hydraulic systems that require immediate, full-pressure response — making precise starter timing and robust gear mesh critical.
Engineering Details That Matter
The starter’s 15-spline pinion shaft ensures exact alignment with the flywheel ring gear, eliminating grinding or incomplete engagement common with underspec replacements. Precision-machined copper windings maintain stable current draw at 12V, preventing voltage drop during repeated start cycles. The housing uses die-cast aluminum for heat dissipation and corrosion resistance — essential for humid Southeast Asian ports or dusty Middle Eastern job sites. Internal bushings are sintered bronze with oil-impregnated retention, reducing wear over 5,000+ start cycles. All electrical contacts meet IP54 rating for dust and splash resistance, supporting use in uncovered maintenance bays or field repairs.
The Real Cost of Wrong Parts
A $30 counterfeit starter may save upfront, but often fails within 200–300 hours — triggering secondary damage to the flywheel, solenoid, or battery system. Each unplanned repair adds labor, towing, and project delay penalties. Industry data shows improper starters contribute to 12% of avoidable excavator downtime in fleets over five years old. Choosing a verified AT318141 starter motor for Zaxis 35U-2 or Yanmar 4TNV88 reduces total cost of ownership (TCO) through longer service life, predictable maintenance intervals, and compliance with OEM electrical specifications — not just price per unit.
Why Customers Trust XUNPO
We partner exclusively with ISO 9001-certified manufacturers and perform incoming material inspection on every batch. Each AT318141 starter motor undergoes 100% bench testing for voltage response, rotational speed, and load torque before shipment. We offer a 6-month warranty covering manufacturing defects with no-questions-asked replacement. Our team has supported 120+ countries since 2016 — from North American rental fleets to African mining contractors. With 20+ technical specialists on staff, we verify part compatibility within 2 hours of receiving your inquiry. Over 10,000 SKUs are held in our Guangzhou warehouse, enabling same-day dispatch for in-stock items like this starter motor.
Packaging & Shipping
- Individually packed in custom-molded anti-static foam inside rigid XUNPO-branded corrugated cartons
- In-stock items ship within 2–5 working days after order confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight based on order size and urgency
- Real-time tracking number provided upon dispatch
- MOQ is 1 piece — designed for urgent field repairs and small-batch verification
Get Your AT318141 Starter Motor Now
Your machine isn’t generating revenue while waiting. Send us your part number (AT318141), machine model (e.g., Zaxis 35U-2 or Yanmar 4TNV88), and required quantity — we’ll reply with a competitive quote within 24 hours. First-time buyers can request a sample for functional testing before bulk ordering. Stock is available now in Guangzhou for fast dispatch.
Frequently Asked Questions
Q: Is this an original OEM part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket starter motor, manufactured in ISO 9001-certified facilities to match original performance, dimensions, and mounting specifications.
Q: How do I confirm if AT318141 fits my specific engine or machine?
A: Provide your full engine model (e.g., 3TNV88F) or excavator model (e.g., Zaxis 50U-3) — our technical team will verify compatibility and respond within 2 hours.
Q: What is the warranty period for this starter motor?
A: We offer a 6-month warranty covering defects in materials and workmanship. Defective units are replaced free of charge upon return verification.
Q: What is the minimum order quantity?
A: MOQ is 1 piece — ideal for urgent repairs, sample testing, or validation before larger orders.
Q: How long does shipping take after placing an order?
A: In-stock items ship within 2–5 working days. Express options (DHL/FedEx) typically deliver to North America/Europe in 4–7 business days.
Q: Can I receive a physical sample before placing a bulk order?
A: Yes — first-time customers may request one AT318141 starter motor sample for functional evaluation prior to bulk purchase.
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
