Product Specifications
| 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 |
| Machine Model Fitment | Cummins 4BT, 6BT engines |
| Condition | New Aftermarket |
| Warranty | 3–12 months against manufacturing defects |
| Packaging | Original retail box with anti-static foam and sealed polybag |
Compatible Models
| Brand | Applicable Models |
|---|
| Cummins | 4BT, 6BT diesel engines |
Tired of Engine Shutdown Failures? Get the Reliable 12V Stop Solenoid for Cummins 4BT and 6BT Engines
Every unscheduled engine shutdown on a construction site costs thousands in downtime — especially when caused by a failing stop solenoid. Operators report repeated failures from counterfeit units that don’t hold voltage or respond inconsistently under load. OEM replacements mean waiting 2–4 weeks while your equipment sits idle. And sourcing correct parts across multiple Cummins models often leads to mismatched orders and costly rework.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This 12V stop solenoid is engineered to match Cummins OEM performance specs — built in ISO-certified factories, tested for pull-in voltage, holding current, and cycle life before shipment. With 10 years’ experience supplying electrical components for heavy equipment, XUNPO ensures every unit meets the same functional requirements as original Cummins 3930658 and 3932529 solenoids. It’s installed during routine engine maintenance, emergency repairs on excavators and loaders powered by 4BT/6BT engines, and fleet overhauls where reliability is non-negotiable.
Where This Part Works
This solenoid operates in high-vibration, temperature-variable environments — from mining haul trucks and port-side container handlers to municipal backhoes and agricultural tractors using Cummins 4BT/6BT powerplants. It directly controls fuel shutoff during engine stop commands, requiring precise electromagnetic response even after 5,000+ cycles. In dusty, humid, or salt-laden conditions — common at quarries, coastal ports, and demolition sites — consistent actuation prevents unintended run-on or failure-to-stop scenarios. replacement stop solenoid for Cummins 6BT must deliver stable performance across all these conditions.
Engineering Details That Matter
The solenoid coil uses Class H insulation rated to 180°C, ensuring uninterrupted operation during prolonged high-load engine duty cycles. Its precision-machined plunger is hardened to 58–62 HRC and coated with zinc-nickel alloy for corrosion resistance in marine and tropical environments. The sealing interface features nitrile rubber (NBR) O-rings compliant with SAE J2044, preventing oil ingress into the electromagnetic chamber. Dimensional tolerances are held within ±0.05 mm to guarantee direct interchangeability with OEM mounting and linkage geometry — no adapter plates or field modifications required.
The Real Cost of Wrong Parts
A substandard 12V stop solenoid may cost 20% less upfront but fails within 3–6 months — triggering repeat service calls, unplanned engine disassembly, and extended machine outages. Industry data shows incorrect solenoid selection contributes to 12% of avoidable hydraulic and engine control faults in mid-life Cummins-powered equipment. Using a part that doesn’t meet ISO 6798 (electromagnetic actuator standards) or Cummins’ own torque and response time specs increases risk of incomplete fuel cutoff — leading to runaway engine events or post-shutdown crankshaft wear. Total cost of ownership drops significantly when you choose verified, test-validated replacements like this 12V stop solenoid for Cummins 4BT.
Why Customers Trust XUNPO
We work exclusively with ISO 9001-certified component manufacturers and perform incoming material inspection on every batch. Each solenoid undergoes 100% functional testing: pull-in voltage verification at 9 VDC, holding current validation at 12 VDC, and mechanical stroke consistency check. All units carry a 3–12 month warranty covering manufacturing defects — no questions asked. Our team has supported 120+ countries since 2016, with 20+ engineers specializing in engine electrical systems. You’ll get part compatibility confirmation within 2 hours of submitting your model and serial number. And because we stock over 10,000 SKUs in our Guangzhou warehouse, your order ships in 2–5 working days — no factory lead time delays.
Packaging & Shipping
- Individually sealed in anti-static polybag, cushioned in molded EPE foam, packed in reinforced corrugated carton
- In-stock items ship within 2–5 working days after payment confirmation
- Flexible logistics: DHL/FedEx/UPS express (3–7 days), air freight (7–12 days), or sea freight (25–40 days)
- Real-time tracking number provided upon dispatch
- MOQ is 1 piece — designed for urgent field repairs and small-batch fleet maintenance
Get Your 12V Stop Solenoid Now
Your excavator or loader isn’t generating revenue while it’s down — every hour counts. Send us your part number (e.g., 3930658), engine model (4BT or 6BT), and required quantity, and we’ll email a competitive quote within 24 hours. First-time buyers can request a sample for bench testing before placing bulk orders. With Guangzhou warehouse stock and global shipping options, you’ll have the right 12V stop solenoid for Cummins 4BT in hand faster than waiting for OEM delivery.
Frequently Asked Questions
Q: Is this an original Cummins part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket part, manufactured in ISO 9001-certified facilities to match Cummins 3930658 and 3932529 specifications — not sourced from Cummins.
Q: How do I confirm this solenoid fits my specific 4BT or 6BT engine?
A: Provide your engine serial number or machine model — our technical team verifies compatibility and responds within 2 hours.
Q: What is the warranty period?
A: 3–12 months against manufacturing defects. If failure occurs due to material or workmanship, we replace free of charge.
Q: What is the minimum order quantity?
A: 1 piece. We support urgent repairs and small-scale maintenance needs without volume pressure.
Q: How soon will my order ship?
A: In-stock items ship within 2–5 working days. Express, air, and sea freight options available based on your destination.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers may request one sample for functional testing prior to full order.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 13316055942 | Email: talos@xunpojx.com
