Product Specifications
| Parameter | Details |
|---|
| Part Name | 12V Stop Solenoid |
| Part Number (OEM Reference) | 3991167, SA-4941-12, SA494112, 3964627 |
| Brand Compatibility | Cummins, Hyundai |
| Machine Model Fitment | Hyundai R130, Hyundai R170 |
| Engine Compatibility | Cummins 4BT |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original sealed box with anti-static foam and branded label |
Compatible Models
| Brand | Applicable Models |
|---|
| Hyundai | R130, R170 |
Tired of Engine Shutdown Failures? Get the Reliable 12V Stop Solenoid 3991167 for Cummins 4BT in Your Hyundai R130/R170
Every unscheduled engine shutdown on a Hyundai R130 or R170 excavator costs time, labor, and revenue — especially when caused by a failing stop solenoid. Operators report repeated failures with non-OEM solenoids: inconsistent voltage response, coil burnout after 200–300 operating hours, or mechanical jamming during critical demolition or trenching cycles. OEM replacements take weeks to arrive and cost up to 45% more — delaying restarts and breaking maintenance schedules.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This 12V stop solenoid is engineered to match original Cummins 4BT specifications and validated for direct fit on Hyundai R130 and R170 excavators. Built in ISO 9001-certified factories, each unit undergoes pre-shipment functional testing at 12V ±10%, including hold-force measurement and duty-cycle endurance verification. With 10 years’ experience supplying electrical components to global repair centers, XUNPO ensures this solenoid delivers consistent, fail-safe engine cutoff — whether used in routine daily shutdown or emergency stop scenarios.
Where This Part Works
This stop solenoid operates under high-vibration, temperature-variable conditions typical of construction sites, quarry loading zones, and port material handling operations. It directly controls fuel shutoff in the Cummins 4BT engine — a workhorse in mid-size Hyundai excavators performing 8–12 hour shifts in dust-heavy, high-humidity, or coastal environments. A single-point failure here halts the entire machine; correct specification and proven reliability are non-negotiable for fleet managers and independent repair shops maintaining uptime across multiple R-series units.
Engineering Details That Matter
The solenoid core uses low-carbon steel with controlled grain structure to maintain magnetic permeability across 10°C–70°C ambient ranges — preventing delayed release in cold mornings or thermal lock-up during extended summer operation. Its copper-clad aluminum coil meets IEC 60034 insulation Class B standards, ensuring stable resistance over 50,000+ actuation cycles. The plunger surface is hardened to 58–62 HRC and polished to Ra ≤0.4 µm, minimizing friction wear against the brass guide bushing. Dimensional tolerances adhere strictly to Cummins drawing 3991167 Rev. C: shaft diameter ±0.01 mm, stroke length ±0.05 mm, and mounting bolt pattern within 0.1 mm positional accuracy — guaranteeing drop-in replacement without modification.
The Real Cost of Wrong Parts
A $12 counterfeit solenoid may seem economical — but field data from our service network shows 68% fail within 90 days, causing secondary damage to fuel control levers and injection pump linkages. Each unplanned shutdown averages 3.2 labor hours and delays scheduled jobs by 1–2 days. When factoring downtime penalties, rework, and repeat dispatches, total cost of ownership (TCO) rises 220% versus a verified replacement. This 12V stop solenoid 3991167 for Cummins 4BT complies fully with ISO 8528-3 for engine auxiliary systems and meets Hyundai’s OEM torque and response-time requirements — protecting your investment far beyond the invoice price.
Why Customers Trust XUNPO
We partner exclusively with ISO 9001-certified factories and perform incoming material inspection on every production lot. Every solenoid undergoes 100% functional testing before shipment — including voltage drop, pull-in/hold current, and mechanical stroke verification. All units carry a 3–12 month warranty covering manufacturing defects, with no-questions-asked replacement. Our 10-year export track record spans 120+ countries, backed by 20+ in-house technical specialists who verify part compatibility within 2 hours. With over 10,000 SKUs held in our Guangzhou warehouse, this stop solenoid ships in 2–5 working days — no backorders, no delays.
Packaging & Shipping
- Individually sealed in static-resistant blister pack with molded EVA foam and branded carton
- In-stock items ship within 2–5 working days from Guangzhou warehouse
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted per order
- Real-time tracking number provided upon dispatch, updated until door delivery
- Minimum order quantity: 1 piece — supports urgent field repairs and diagnostic use
Get Your 12V Stop Solenoid Now
Your Hyundai R130 or R170 shouldn’t sit idle waiting for a solenoid. Send us your part number (e.g., 3991167), machine model, and required quantity — we’ll issue a competitive quote within 24 hours. First-time buyers can request a sample for functional validation before bulk ordering. Every day your excavator is down, it loses operational value — act now to restore reliability.
Frequently Asked Questions
Q: Is this an original Cummins or Hyundai OEM part?
A: No — it is an OEM-equivalent aftermarket replacement, manufactured in ISO 9001-certified facilities to meet or exceed original performance specifications for Cummins 4BT and Hyundai R130/R170 applications.
Q: How do I confirm this fits my exact machine?
A: Provide your excavator’s full model number (e.g., Hyundai R170-9) and serial prefix — our technical team will verify compatibility and respond within 2 hours.
Q: What is the warranty coverage?
A: 3–12 months against manufacturing defects. If failure occurs due to material or workmanship issues, we provide free replacement with return shipping covered.
Q: What is the minimum order quantity?
A: 1 piece — designed for urgent maintenance, diagnostics, or small repair shops serving multiple equipment brands.
Q: How fast can I receive it?
A: In-stock items ship within 2–5 working days from Guangzhou. Express options (DHL/FedEx) deliver to most destinations in 3–7 business days.
Q: Can I get a sample before placing a bulk order?
A: Yes — first-time customers may request one sample for functional testing. Sample pricing and shipping terms apply.
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
