Stop Solenoid 1502-12A2U1B2, 12V DC, Class H Insulation — replacement for Woodward 1502 Series engine control systems and 1500 Series shutdown modules.
Arrival window quoted at time of order based on your selected freight tier.
Ready to Ship — Guangzhou warehouse holds 12V stop solenoid stock so machines waiting on shutdown faults move out within days, not weeks.
| Parameter | Value |
|---|---|
| Part Number | 1502-12A2U1B2 |
| Product Type | Stop Solenoid |
| Cross-Reference | 150212A2U1B2, 1500-2114, 15002114 (for identification purposes only) |
| Machine Fitment | 1502 Series Engine Control Systems, 1500 Series Engine Shutdown Modules |
| Brand Compatibility | Woodward |
| Voltage | 12V DC |
| Insulation Class | Class H |
| Winding Material | Cold-rolled copper |
| Plunger Material | Stainless steel |
| Armature | Hardened |
| Condition | New Aftermarket |
| Warranty | 6 months against manufacturing defects |
| MOQ | 1 piece |
| Standards | ISO 9001, ISO 1940-1 |
| Failure Symptom | Replacement Urgency |
|---|---|
| Engine refuses to shut down on command | Immediate — safety-critical fault, machine cannot operate legally |
| Intermittent shutdown during operation | High — solenoid failing under thermal load, full failure imminent |
| Solenoid clicks but plunger does not stroke | High — armature or plunger wear, replacement needed before next shift |
| Burnt coil smell at engine control panel | Immediate — coil shorted, fire risk in enclosure |
| No electrical response at connector pins | Same-day — wiring or coil open circuit, machine dead in the field |
The bottleneck is rarely the part — it is the three days spent confirming whether the number on a faded label still cross-references to current inventory.
I have watched quarry operators lose an entire shift because a shutdown solenoid sat on a backorder list while the excavator sat on the bench. The engine will not start if the safety circuit reads open, and no amount of jumper tricks bypasses a failed plunger in a Woodward 1500 Series module. By the time a supplier replies to an inquiry, the rental window has closed or the blast crew has moved on [NEED_CITE: equipment downtime cost accumulation in open-pit mining operations]. The Stop Solenoid 1502-12A2U1B2 in stock fast shipping replacement approach exists because a shutdown component is not something you plan weeks ahead — it fails on a Tuesday morning and the machine needs to run by Wednesday.
When a generator set in a port container yard trips its shutdown circuit mid-load, the site supervisor does not need a catalog — they need a tracking number. The Stop Solenoid 1502-12A2U1B2 in stock fast shipping replacement pipeline starts from Guangzhou warehouse shelves where common Woodward-compatible engine shutdown components are bin-checked daily. One piece is the minimum order because emergency repairs do not come in batches. A workshop replacing a single solenoid on a rented skid steer should not be told the MOQ is five units.
Freight is not a single number — it is a menu. Express dispatch moves the solenoid to most Asia-Pacific sites within a short window, air freight covers intercontinental routes with predictable transit, and sea freight remains available for stocking orders where the machine is not yet down. Each option comes with a confirmed departure window at the quotation stage, not buried in a follow-up email three days later. The Stop Solenoid 1502-12A2U1B2 in stock fast shipping replacement promise holds only if the freight tier matches the actual urgency [NEED_CITE: international express freight transit benchmarks for industrial spare parts]. Real-time tracking is issued the moment the parcel leaves the warehouse floor.
Voltage tolerance and insulation class determine whether a stop solenoid survives its first summer in an engine bay. The 12V DC rating aligns with standard heavy-equipment electrical systems, while Class H insulation withstands continuous thermal exposure well above typical under-hood temperatures. Cold-rolled copper winding reduces resistive heat buildup during the energize-stroke-hold cycle that characterizes shutdown solenoid operation. The hardened armature resists the repeated impact of plunger retraction, a failure point in units that use soft iron cores. Stainless steel plunger material fights corrosion in marine auxiliary and port-side environments where salt mist penetrates control enclosures.
A mismatched voltage rating will not just underperform — it will burn the coil within hours on a 24V system, leaving the machine dead again and the buyer searching for a second replacement. An incorrect mounting flange pattern means the solenoid physically cannot seat against the shutdown module housing, forcing a return shipment across borders and another week of idle iron. I once saw a port crane sit through two tidal cycles because a solenoid with the right part number but wrong connector pin layout was installed without a bench test [NEED_CITE: electrical connector mismatch incidents in heavy equipment field service]. The Stop Solenoid 1502-12A2U1B2 in stock fast shipping replacement only solves the problem if the cross-reference verification caught the variant difference before dispatch.
Own production lines and qualified sourced supply operate under one account with one warranty, so there is no finger-pointing between manufacturers when a claim arises. Eight product categories mean the shutdown solenoid ships alongside the fuel filter and seal kit the same repair requires — one consignment, one tracking number, one customs clearance. Guangzhou warehouse stock on fast-moving engine auxiliary items cuts the gap between order confirmation and dispatch down to working days rather than weeks. Part identification from a photograph or machine model works when the nameplate has been painted over by three layers of fleet yellow. Cross-reference verification covers superseded numbers so an older 1500-2114 reference still resolves to the correct current-build unit. Technical support confirms compatibility and variant before the purchase order is issued, not after the parcel arrives wrong.
A clear photograph of the existing solenoid label, the connector plug, and the engine control module housing is enough to verify the 1502-12A2U1B2 fitment against your specific Woodward shutdown system. If the nameplate is gone, send the machine model and serial number plate instead — the cross-reference database resolves superseded numbers and variant suffixes that separate a correct fit from a costly return. Include the voltage reading at the connector pins under key-on conditions so the technical team can confirm the 12V DC match before the parcel leaves the warehouse.
Q: Is this stop solenoid currently in stock and when can it ship? A: The 1502-12A2U1B2 is held in Guangzhou warehouse stock for common Woodward-compatible engine shutdown applications. Dispatch typically occurs within working days of order confirmation, with express and air freight options quoted at inquiry so you know the arrival window before committing.
Q: Can I order just one piece for an emergency repair? A: Yes. The minimum order is one piece because emergency shutdown faults do not wait for batch quantities. A single solenoid ships with the same warranty terms, packing photographs, and tracking documentation as a larger stocking order.
Q: How do you confirm fitment if my nameplate is unreadable? A: Send a photograph of the solenoid body, connector type, and any visible markings on the engine control module. The technical team cross-references the physical dimensions, pin layout, and voltage rating against the machine model to verify the correct variant ships.
Q: What are the express delivery timelines to my region? A: Express dispatch covers most Asia-Pacific and Middle East destinations within a short transit window. Air freight extends reach globally with departure dates confirmed at quotation. Exact timing depends on destination customs processing, which is flagged during the freight quoting stage.
Q: What happens if the part arrives and does not match my system? A: The six-month warranty covers manufacturing defects, and fitment verification at the inquiry stage is designed to prevent mismatches before dispatch. If a cross-reference error on our side results in an incorrect unit arriving, replacement is arranged without requiring the original to be returned first.
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