Verified Fitment Stop Solenoid 1502-12A2U1B2 Compatible with Woodward

Variant Differences Verified — Every Stop Solenoid 1502-12A2U1B2 we ship is cross-checked against machine serial range and connector orientation before dispatch.

Technical Specifications

Application Suitability

Why the Same Part Number Ships in Multiple Variants

Connector direction and mounting hole position vary across machine generations, even when the base number 1502-12A2U1B2 remains the same.

I have seen excavators sit idle for days because a replacement stop solenoid matched the part number but had the plug facing the wrong way. Copied cross-reference tables often list 1502-12A2U1B2 and 1500-2114 as fully interchangeable, yet field experience shows variant differences in connector type and bracket geometry that make one version fit while another does not. The Stop Solenoid 1502-12A2U1B2 compatible with Woodward systems must be verified against the specific machine serial range [NEED_CITE: Woodward stop solenoid variant identification across equipment generations].

Matching the Solenoid to Your Machine Serial Range

The Stop Solenoid 1502-12A2U1B2 for Woodward cross reference fitment requires more than matching a number on a worn nameplate. Machine serial ranges determine which variant was installed at the factory, and mid-production changes can shift connector position or mounting bolt spacing without altering the base designation. Our technical team cross-references your machine model and serial number against known variant records to identify the correct configuration before the part leaves the Guangzhou warehouse.

Connector Orientation and Mounting Pattern Verification

Physical interface details decide whether the solenoid bolts on and plugs in without modification. The electrical connector must align with the existing harness routing, and the reinforced mounting bracket hole pattern must match the threaded bosses on the engine block. We check port position, plug type, and bolt spacing against the original unit. When the old solenoid is still available, we compare photographs side by side to confirm the variant before confirming the order [NEED_CITE: stop solenoid mounting pattern verification for construction equipment engines].

Reading the Specifications That Matter on Site

The 12V rating must match the machine electrical system precisely — operating outside the ±10% voltage tolerance risks coil burnout or sluggish response. Response time of ≤0.3 seconds ensures the fuel rack closes fast enough to prevent engine overspeed during shutdown. The IP65 sealed housing keeps moisture and dust out of the coil cavity, which matters when the solenoid sits in an exposed position near the engine fan. Gold-plated electrical contacts resist corrosion in the connector, maintaining reliable signal transmission through thousands of start-stop cycles. Precision-wound copper coils deliver consistent magnetic force across the -40°C to 120°C operating range.

What Happens When the Wrong Variant Gets Shipped

A solenoid that almost fits creates two problems. First, the machine stays down while the correct part is sourced and shipped, extending unplanned downtime. Second, if the installer forces a misaligned connector or re-drills mounting holes, the compromised seal invites moisture ingress and premature coil failure. These field modifications void warranty and shift blame away from the real cause — a variant mismatch that should have been caught before shipment [NEED_CITE: aftermarket solenoid field modification and early failure patterns].

Why Procurement Teams Verify Here Before Ordering

We produce selected part lines in our own facility and source the remainder from qualified ISO-certified manufacturing partners, so both carry the same warranty terms. Eight product categories sit under one account, so a full repair list ships as one consignment rather than split deliveries. Minimum order is one piece, which matters when a single machine is down and you need to confirm fitment before committing to fleet quantity. Guangzhou warehouse stock on common items means fast dispatch when the part number is confirmed. Our identification service accepts machine model, photograph, or nameplate image when the original number is unreadable. Cross-reference verification covers superseded and alternate numbers, and sample supply lets you test fitment physically before placing a bulk order.

Documentation & Verification

• Commercial invoice and packing list showing Stop Solenoid 1502-12A2U1B2 with variant code
• Part compatibility and cross-reference sheet listing 1500-2114 as reference only
• Quality inspection record covering coil resistance and response time test
• Warranty terms specifying 3–12 months coverage against manufacturing defects
• Packing photographs showing connector orientation before crate closure
• HS code and customs documentation support for international shipment

Fitment Check Before Installation

• Compare connector orientation on the new Stop Solenoid 1502-12A2U1B2 against the removed unit before wiring
• Measure mounting hole spacing on the reinforced bracket against engine block threaded bosses
• Verify 12V supply at the harness plug with a multimeter before connecting the solenoid
• Energize the coil briefly to confirm plunger travel and response before final assembly
• If hole pattern or plug type does not match, contact the technical team with photographs for variant re-check

Request a Fitment Confirmation

Provide your machine model, serial number, or a photograph of the existing solenoid and its nameplate. Our technical team will verify the correct variant of Stop Solenoid 1502-12A2U1B2 for Woodward cross reference fitment, confirm connector and mounting compatibility, and arrange a sample if you need to test physically before ordering in quantity.

Frequently Asked Questions

Q: How do I confirm 1502-12A2U1B2 fits my specific machine when only the model is known? A: Share the machine model and, if possible, the serial number or a photograph of the existing solenoid. Our technical team cross-references serial range records to identify which variant was fitted at the factory, checking connector type and mounting pattern before confirming compatibility. This avoids shipping a unit that matches the base number but differs in physical interface details.

Q: Are 1500-2114 and 1502-12A2U1B2 interchangeable, or are they different variants? A: These numbers appear together in many cross-reference tables, but they can represent different variants with distinct connector orientations or mounting brackets depending on the machine generation. We verify each number against your specific equipment serial range rather than relying on generic interchange charts. Send us your machine details so we can confirm which number applies to your build.

Q: My old solenoid has a number that does not match any listing — can you still identify it? A: Yes. Send a clear photograph of the solenoid body, connector, and any remaining markings. Our team identifies the unit from physical features including housing shape, plug configuration, and mounting bracket geometry. We then match it to the correct current production number and provide a cross-reference sheet for your records.

Q: Can I order one sample to test fitment before placing a larger order? A: Yes, the minimum order is one piece. We encourage ordering a single Stop Solenoid 1502-12A2U1B2 to verify connector alignment, mounting hole spacing, and electrical response on your machine before committing to fleet quantity. The same warranty terms apply to sample orders.

Q: What cross-reference documentation do you provide with shipment? A: Each shipment includes a compatibility and cross-reference sheet listing alternate and superseded numbers such as 150212A2U1B2 and 15002114, marked as reference only. This document records the verified variant for your machine serial range, supporting future reorders and fleet maintenance planning.