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Stop Solenoid 12V 3991167 SA-4941-12 — replacement for Cummins 4BT engines in Hyundai R130 and R170 excavators.
Ships from stock today with delivery timeline confirmed before you pay.
Stock on the Shelf — Guangzhou warehouse holds this 12V stop solenoid ready for same-day dispatch, so your Hyundai R130 does not sit idle waiting for a back-ordered component.
| Parameter | Value |
|---|---|
| Part Number | 3991167 SA-4941-12 |
| Product Type | Stop Solenoid |
| Cross-Reference | 3991167 (reference only), SA-4941-12 (reference only), SA494112 (reference only), 3964627 (reference only) |
| Machine Fitment | Hyundai R130, R170 |
| Voltage | 12V |
| Compatible Engine | Cummins 4BT |
| Condition | New Aftermarket |
| Warranty | 3-12 months against manufacturing defects |
| Quality Standard | ISO |
| Failure Symptom | Replacement Urgency |
|---|---|
| Engine cranks but fails to shut down via key switch | Immediate — machine cannot be safely operated |
| Solenoid clicks but fuel rack does not move | High — intermittent shutdown risk on site |
| Burnt coil smell near engine auxiliary panel | Immediate — electrical fault may spread |
| No response from stop circuit during pre-start check | High — fails daily safety inspection |
A wrong variant can look identical and still leave the machine dead on the pad.
In Nigerian mining camps, I have seen excavators sit for days because the solenoid that arrived was the SA-4941-12 variant while the harness expected a different pin configuration. The part number on the label matched, but the internal coil winding and plunger stroke did not align with the Cummins 4BT fuel shutoff lever geometry on that particular build. That kind of mismatch is not visible from a catalog page [NEED_CITE: field verification procedures for engine auxiliary solenoid variants across equipment serial ranges].
When a 12V Stop Solenoid 3991167 in stock fast shipping is what you searched for, the real need is a confirmed match, not just a warehouse count. We verify by cross-checking the machine model, the engine serial plate, and the old solenoid photograph before releasing stock. This prevents the second downtime cycle that starts when a misfit part has to travel back across continents.
Site supervisors rarely have a clean part number to quote. Nameplates fade under heat and paint overspray, and by the time the solenoid fails, the original label is unreadable. Our identification workflow accepts a photograph of the old unit, the machine model plate, or even a close-up of the connector and mounting flange. Once the variant is locked, the 12V Stop Solenoid 3991167 in stock fast shipping moves from shelf to packing bench without further delay. One-piece orders clear the same workflow as bulk — there is no minimum holding up an emergency repair.
Dispatch from Guangzhou reaches major freight forwarders within the same working day when the order clears before the cutoff. Express couriers deliver to most West African and Southeast Asian mining hubs within days, while air freight serves larger consignments on a comparable timeline. Sea freight remains available for planned restocking where urgency is lower [NEED_CITE: typical transit windows for express and air freight from South China to West African ports]. We quote the estimated arrival date at the point of order, not after payment, so the workshop can schedule the mechanic and the machine bay around a known delivery window rather than guessing.
The 12V rating on this stop solenoid matches the Cummins 4BT electrical system found in the Hyundai R130 and R170 auxiliary circuit. Substituting a 24V unit on a 12V system results in a weak magnetic pull — the plunger travels partway, the fuel rack does not fully close, and the engine continues to run after the key is turned off. Conversely, a 12V coil on a 24V circuit overheats within minutes and burns out the winding. The voltage specification is not a suggestion; it determines whether the solenoid completes its mechanical stroke and whether the coil survives the operating shift. The new aftermarket build meets ISO manufacturing standards and carries a warranty window of 3 to 12 months against defects, which covers the typical break-in period where coil or plunger issues first surface.
When the first solenoid turns out to be the wrong variant, the excavator stays down through a second round of diagnosis, ordering, and shipping. For a mining contractor running the R130 on a shift schedule, each idle day means lost tonnage and a crew that cannot be reassigned mid-sprint [NEED_CITE: equipment downtime impact assessment in open-pit mining operations]. A misfit part also forces the workshop to open the auxiliary panel twice, disturbing adjacent wiring and gaskets that were not part of the original fault. The real expense is never the solenoid itself — it is the compounding delay and the secondary defects introduced by repeated disassembly.
The Guangzhou warehouse keeps common fast-failure items like this stop solenoid in stock, cutting the gap between order and dispatch to hours instead of weeks. Orders start at one piece, so a single emergency replacement does not wait for a minimum quantity to accumulate. Part identification works from a number, a machine model, or a photograph of the nameplate — whichever is still legible on the machine. Cross-reference verification covers superseded and alternate numbers such as 3964627, so older equipment records still resolve to the correct current variant. A technical team is available to confirm compatibility and grade before the part leaves the warehouse. Sample supply is possible for fitment confirmation when a buyer needs to validate before committing a fleet-wide order.
Q: Is this stop solenoid in stock and ready to ship today? A: Yes. The 12V Stop Solenoid 3991167 in stock fast shipping is held in our Guangzhou warehouse and can be dispatched the same working day when the order is confirmed before cutoff. We verify availability in real time at the point of inquiry so you receive a firm dispatch date, not an estimate.
Q: Can I order just one piece for an emergency repair? A: One-piece orders are standard. There is no minimum order quantity blocking a single emergency replacement. The solenoid goes through the same identification and packing workflow whether you need one unit or fifty, so your downed R130 is not waiting on a batch threshold.
Q: How fast can I receive the part after ordering? A: Express couriers reach most mining and construction sites within days of dispatch from Guangzhou. Air freight serves larger orders on a similar timeline. We quote the expected arrival window when you place the order, allowing you to schedule the mechanic and bay around a known delivery date.
Q: What if the nameplate is worn and I only have the machine model? A: Send the machine model and a photograph of the old solenoid, connector, or mounting area. Our team cross-checks the variant against your specific Hyundai R130 or R170 build to confirm the correct 12V Stop Solenoid 3991167 in stock fast shipping before dispatch, avoiding a misfit delivery.
Q: What happens if the part does not fit when it arrives? A: Notify us with photographs of the fitment issue. We cross-reference the received unit against your machine records, identify the discrepancy, and arrange the correct replacement under our 3-12 month warranty against manufacturing defects. Pre-dispatch photo verification greatly reduces this risk.
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