<p>Stop engine shutdowns before they cost you downtime — this <strong>12V stop solenoid for Cummins 4BT 6BT engines</strong> delivers instant, OEM-matched response and failsafe reliability. No more guessing whether a knockoff will hold up under load or leave your machine stranded mid-shift.</p> <ul> <li>Direct-fit replacement for <strong>3930658, 3932529, SA-4756-12, and SA-4891-12</strong> — verified against Cummins’ original coil resistance spec (12.8–13.4Ω @ 20°C)</li> <li>Pre-tested for continuous 12V duty cycle — no voltage drop sag or delayed de-energization on hot restarts</li> <li>Ships from Guangzhou warehouse in 2–5 working days, MOQ just 1 piece — ideal when your 6BT won’t shut down and the job can’t wait</li> <li>Included with ISO-certified factory warranty (12 months) and full technical backup — we’ll help you confirm fitment before you order</li> </ul>
| Parameter | Details |
|---|---|
| Part Name | 12V Stop Solenoid |
| Part Number (OEM Reference) | 3930658, 3932529, SA-4756-12, SA475612, 3939700, SA-4891-12, SA489112 |
| Brand Compatibility | Cummins |
| Engine Model Fitment | Cummins 4BT, 6BT |
| Condition | New Aftermarket |
| Warranty | 6 months against manufacturing defects |
| Packaging | Original retail box with anti-static foam and sealed polybag |
| Brand | Applicable Models |
|---|---|
| Cummins | 4BT, 6BT diesel engines |
Every unexpected engine shutdown on a construction site means lost productivity, delayed deadlines, and costly downtime—often $2,500+ per day for mid-size excavators. Many operators report repeated failures from counterfeit or low-grade solenoids that stick, overheat, or fail to cut fuel under load. OEM replacements take 2–4 weeks and cost 40% more—while sourcing correct parts across multiple brands adds hours of cross-referencing.
This 12V stop solenoid is manufactured in ISO 9001-certified facilities, rigorously tested for pull-in voltage, holding current, and cycle life before shipment. Designed specifically for Cummins 4BT and 6BT engine shutdown circuits, it delivers consistent, fail-safe operation during critical hydraulic or excavation cycles. With 10 years’ experience supplying engine components to repair centers and fleet operators across 120+ countries, XUNPO ensures technical accuracy—not just part number matching.
This solenoid operates in high-vibration, temperature-variable environments: mining haul trucks idling at 55°C ambient, port-side loaders running 18-hour shifts, and demolition excavators performing repeated high-load shutdowns. Its precise electromagnetic response prevents unintended engine run-on or delayed shutoff—critical when safety interlocks or emission controls are engaged. It’s the replacement stop solenoid for Cummins 6BT used in off-highway equipment where reliability directly impacts operator safety and machine availability.
The solenoid core uses cold-drawn low-carbon steel with controlled grain structure, ensuring consistent magnetic flux density and resistance to demagnetization after 50,000+ cycles. Its copper-clad aluminum coil meets IEC 60034 insulation Class B standards, sustaining continuous 12V DC operation at 85°C without thermal drift. The precision-machined stainless steel plunger maintains ±0.02 mm tolerance to prevent binding in the fuel rack housing—matching OEM dimensional specs exactly. A dual-lip nitrile rubber seal isolates the actuator chamber from fuel vapor ingress, preventing corrosion-induced seizure common in humid or coastal operating zones.
A $12 counterfeit solenoid may save $8 upfront—but causes 3x more field failures, requiring repeat labor, diagnostic time, and unplanned engine disassembly. Industry data shows substandard solenoids reduce mean time between failures (MTBF) by 62% versus ISO-compliant units. When your Cummins 4BT engine fails to shut down during emergency stop sequences, the risk extends beyond repair cost: non-compliance with OSHA or EU Machinery Directive safety requirements can trigger regulatory penalties. Total cost of ownership (TCO) favors certified aftermarket parts—like this 12V stop solenoid for Cummins 4BT—where 6-month warranty, technical validation, and warehouse-ready stock eliminate hidden delays and liability.
• We source exclusively from ISO 9001-certified factories—every batch undergoes incoming material inspection for tensile strength and surface finish.
• 100% of solenoids undergo functional testing: voltage drop, coil resistance, and full-stroke actuation at 11.5V–13.5V DC before shipment.
• All engine components carry a 6-month warranty covering manufacturing defects—no questions asked.
• 10 years of export experience serving 120+ countries—from U.S. Midwest repair shops to West African mining contractors.
• Our 20+ technical staff include certified diesel engine technicians; send your part number and model—we confirm fitment within 2 hours.
• Over 10,000 engine SKUs held in our Guangzhou warehouse—including this replacement stop solenoid for Cummins 6BT—ready to ship in 2–5 working days.
Your engine shouldn’t wait weeks for shutdown reliability. Send us your part number (e.g., 3930658), exact engine model (e.g., Cummins 6BT5.9), and required quantity—we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for functional testing. Every hour your machine sits idle costs money; with Guangzhou warehouse stock, you’re only days away from full operation.
Q: Is this an original Cummins part or a replacement?
A: This is an OEM-equivalent aftermarket part, produced in ISO 9001-certified factories to meet Cummins dimensional, electrical, and performance specifications.
Q: How do I confirm if this 12V stop solenoid fits my machine?
A: Provide your engine model (e.g., Cummins 4BT3.9) and application context—we verify compatibility using factory service manuals and cross-reference databases, responding within 2 hours.
Q: What is the warranty period?
A: 6 months from date of delivery against manufacturing defects. Claims require photo evidence and brief failure description.
Q: What is the minimum order quantity?
A: 1 piece—no bulk requirement. Ideal for urgent repairs or verification before larger orders.
Q: How fast can I receive it?
A: In-stock items ship within 2–5 working days. Express courier delivery takes 3–7 days depending on destination.
Q: Can I get a sample before placing a bulk order?
A: Yes—first-time customers may request one sample for functional testing. Sample fee is refundable against first bulk order.
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
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