<p>Stop engine shutdowns before they cost you time and money — this <strong>12V stop solenoid 3991167</strong> delivers instant, reliable cutoff for Cummins 4BT-powered Hyundai R130 and R170 excavators, with zero OEM delays or markup.</p> <ul> <li>Direct-fit replacement for part numbers <strong>3991167, SA-4941-12, and 3964627</strong> — no adapters or guesswork needed</li> <li>Built with high-temp copper windings and precision-machined plunger clearance — critical for consistent 12V engagement under hot hydraulic bay conditions</li> <li>Ships same-day from our Guangzhou warehouse (MOQ just 1 piece), so urgent repairs never stall your fleet</li> <li>Pre-tested for pull-in voltage ≤9.6V and hold current stability — avoids the “click-but-no-shutdown” failure common with low-grade solenoids</li> </ul>
| 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 Fitment | Cummins 4BT |
| Condition | New Aftermarket |
| Warranty | 6 months against manufacturing defects |
| Packaging | Original retail box with anti-static foam cushioning |
| Brand | Applicable Models |
|---|---|
| Hyundai | R130, R170 |
Every unscheduled engine shutdown on a Hyundai R130 or R170 excavator costs operators hundreds to thousands of dollars per hour in idle labor, delayed projects, and rental penalties. Counterfeit or mis-specified stop solenoids cause inconsistent cutoff timing, leading to hard starts, fuel flooding, or complete failure to shut down — especially under high ambient temperatures or prolonged operation. OEM parts often require 3+ weeks lead time, halting critical maintenance windows.
This 12V stop solenoid delivers precise electromagnetic actuation matching original Cummins 4BT specifications — verified through pre-shipment functional testing at our Guangzhou QC lab. Built by ISO 9001-certified factories with 10+ years’ experience supplying aftermarket electrical components for heavy equipment, it ensures reliable engine kill response during routine service, emergency stops, and cold-start conditions. Designed specifically for integration into Hyundai R130/R170 hydraulic-electrical control circuits, it eliminates compatibility guesswork for fleet technicians and repair centers.
This solenoid operates continuously in demanding environments: urban excavation sites with dust and vibration, quarry loading zones with high thermal cycling, port material handling operations exposed to salt air, and demolition jobs with frequent start-stop cycles. It must withstand repeated 12V DC engagement (up to 500,000 cycles), resist moisture ingress during rain or wash-down procedures, and maintain magnetic pull force across -20°C to +85°C ambient ranges — making correct specification non-negotiable for uptime-critical fleets.
The solenoid coil uses Class H insulation (180°C rated) copper windings, ensuring stable resistance and no thermal drift after extended duty cycles. The plunger is precision-ground stainless steel with a hardened tip (HRC 58–62), resisting galling and wear from repeated impact against the fuel shutoff lever. Sealing meets IP67 standards via dual-lip nitrile rubber gaskets, preventing diesel fuel vapor and condensation ingress that degrade coil integrity over time. Dimensional tolerances are held within ±0.05 mm to guarantee drop-in replacement without adapter plates or wiring modifications — critical for field technicians working under time pressure.
A $12 counterfeit solenoid may fail within 200 hours, triggering repeat service calls, diagnostic labor ($120+/hr), unplanned downtime (avg. $2,100/day for R170 fleet use), and potential fuel system contamination requiring injector cleaning. Genuine OEM parts cost 42% more than this XUNPO replacement but offer no performance advantage — while our version meets ISO 8528-3 and SAE J1171 ignition safety standards for diesel engine shutdown systems. Total cost of ownership drops significantly when factoring in reliability, warranty coverage, and zero rework time.
We source exclusively from ISO 9001-certified factories and conduct incoming material inspection on every batch. Each 12V stop solenoid undergoes 100% functional test — including voltage drop, pull-in/release timing, and dielectric strength verification — before shipment. We offer 6-month warranty against manufacturing defects with no-questions-asked replacement. With 10 years of export experience to 120+ countries, our technical team has verified over 8,400 Hyundai and Cummins part cross-references. All common solenoids like this 3991167 are stocked in our Guangzhou warehouse — ready for same-day dispatch. And every inquiry receives expert part confirmation within 2 hours, not automated replies.
Your Hyundai R130 or R170 shouldn’t sit idle waiting for a stop solenoid. Send us your part number (3991167 or SA-4941-12), machine model, and required quantity — we’ll issue a competitive quote within 24 hours. First-time buyers can request a sample for physical verification before bulk order. With Guangzhou warehouse stock and strict QC, you get OEM-equivalent reliability without OEM delays or markup.
Q: Is this an original Cummins or Hyundai part?
A: No — it is an OEM-equivalent aftermarket component manufactured by ISO 9001-certified suppliers to match original dimensional, electrical, and 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 (e.g., Hyundai R170-9), serial number prefix (if available), and engine tag details — our technical team will verify compatibility and respond within 2 hours.
Q: What is the warranty period?
A: 6 months from date of shipment against defects in materials or workmanship. Claims require photo evidence and brief failure description; replacements ship immediately upon approval.
Q: What is the minimum order quantity?
A: 1 piece. We support urgent maintenance needs, sample requests, and low-volume fleet trials without volume commitments.
Q: How fast can you ship?
A: In-stock items ship within 2–5 working days from our Guangzhou warehouse. Express courier options (DHL/FedEx/UPS) deliver to most destinations in 3–7 business days.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers may request one sample unit at cost plus shipping. Sample testing is encouraged to validate fit, function, and documentation alignment before larger procurement.
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Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
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