Alternator
12V Alternator A187873 | In Stock for CASE 580E 590L 5120 480E
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Alternator 12V alternator A187873 Alternator

12V Alternator A187873 | In Stock for CASE 580E 590L 5120 480E

A187873 Alternator, 12V β€” compatible with CASE 580E, 590L, 5120, 480E backhoe loaders and tractors.

  • Guangzhou warehouse stocked for same-day dispatch on urgent breakdowns
  • One-piece MOQ with no minimum blocking your emergency order
  • Send a photo of the worn nameplate for instant part-number confirmation
  • Express, air, and sea freight with arrival timing quoted upfront

Dispatch window confirmed at order so you know exactly when your machine is back on the job.

Key Highlights

  • Fits CAT, Komatsu, Hitachi, Volvo, Hyundai, Doosan, Kobelco, Sany, XCMG & more
  • Sourced from ISO-certified factories with strict QC inspection
  • MOQ = 1 piece Β· In-stock items ship in 2-5 working days
  • 3-12 month warranty Β· 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Single-Piece Stock Dispatch β€” This 12V alternator ships the same day from our Guangzhou warehouse, with arrival timing quoted before you confirm.

Technical Specifications

Parameter Value
Part Number A187873
Product Type Alternator
Cross-Reference A186125, AQ187873, 3604448R, 3920679, J920679, 4029/70017 (reference only)
Machine Fitment CASE 580E, 580K, 580L, 580M, 590L, 590SL, 480E, 480F, 5120, 5130, 5140, 5150, 780D, 4391
Voltage 12V
Condition New Aftermarket
Warranty 3-12 months against manufacturing defects
Standards ISO-certified manufacturing

Application Suitability

Failure Symptom Replacement Urgency
Battery not charging, dashboard warning light on Immediate β€” machine is down, no electrical power to start
Intermittent voltage drop under load High β€” risks stalling on active jobsite, schedule impact
Whining noise from alternator bearing Moderate β€” plan replacement within the current service window
Complete electrical failure after water ingress Immediate β€” backhoe loader inoperative until unit is swapped

Why the Same Part Number Arrives in Different Configurations

Sending a clear photo of your old unit or nameplate prevents a multi-day delay that a wrong 12V Alternator A187873 would cause on a downed machine.

I have seen repair shops in remote mining camps wait for a replacement, only to find the connector pinout does not match the harness on a CASE 580K. The part number was technically correct, but the terminal position was for a different production year. The machine sat idle while a second unit was flown in [NEED_CITE: impact of incorrect electrical component fitment on equipment downtime].

When your backhoe loader is already costing lost hours, guessing from a faded manual is not an option. We verify the plug definition and mounting ear spacing against your actual machine before the 12V Alternator A187873 leaves the warehouse.

Stock Availability and the Identification Workflow

Our Guangzhou facility holds inventory of this high-demand alternator for immediate release. When a site supervisor sends a photograph of the existing unitβ€”especially if the nameplate is worn or painted overβ€”our technical team cross-checks the terminal layout, pulley groove count, and case diameter. This confirmation step happens before any freight is booked, ensuring the 12V Alternator A187873 you receive matches the harness and bracket on your specific CASE backhoe or tractor.

Freight Options and Arrival Timing

Dispatch speed only matters if the transit method fits your location and deadline. For a machine-down emergency on a CASE 590L or 5120, we quote express, air, and sea freight with the estimated arrival date stated upfront. Packaging is reinforced for courier handling, and the unit is boxed to prevent terminal damage during transit. You see the freight cost and the delivery window before committing, so there are no surprises while the machine sits idle [NEED_CITE: standard freight transit time variables for construction equipment parts].

Voltage Output and Terminal Configuration

A 12V system on heavy equipment must maintain stable output across a wide RPM range, from idle trenching to high-speed roading. This alternator is built to deliver consistent charging current under the vibration and thermal loads typical of a CASE 480E or 580M working in dusty conditions. The terminal configuration and plug type must match the machine's wiring harness exactly; a mismatched connector forces field splicing, which introduces a failure point in wet environments.

12V Alternator A187873 terminal and mounting detail for CASE backhoe loaders

The Cost of a Wrong Part on a Downed Machine

Ordering a unit without verifying the connector type or mounting pattern means the machine stays broken while the return shipment is processed. On a remote jobsite, a CASE 780D or 4391 cannot earn revenue while waiting for a second delivery. The labor cost of a technician standing by, combined with missed project milestones, turns a simple replacement into a compounding loss [NEED_CITE: cost of unplanned downtime in earthmoving operations].

Why Procurement Teams Source This Alternator Here

Our own production lines and qualified sourced supply carry the same warranty terms, so you get consistent quality whether the unit comes from our floor or a partner facility. A single account handles this alternator alongside filters, seals, and undercarriage parts, keeping your purchase order consolidated. We accept orders from one piece upward, so an emergency single-unit requirement is never blocked by volume thresholds. Identification works from a part number, a machine model, or a photograph of the old unit. Our cross-reference verification covers superseded numbers, catching errors that copied tables often carry forward.

Documentation & Verification

  • Commercial invoice listing the alternator part number and machine compatibility
  • Cross-reference sheet mapping OEM numbers (reference only) to this unit
  • Quality inspection record showing voltage output and physical dimension checks
  • Warranty terms covering manufacturing defects for the stated period
  • Packing photographs confirming the unit and terminals before the box is sealed
  • HS code provided to support customs clearance at your destination

Stock, Shipping & Arrival

  • Alternator is stocked in Guangzhou and ready for same-day dispatch upon order confirmation
  • Express courier available for urgent delivery to major international hubs
  • Air and sea freight options quoted with estimated arrival dates for your location
  • Unit is packed in a reinforced carton suitable for standard courier handling
  • Tracking number and shipment updates provided until delivery is confirmed

Getting the Right Information for Your Order

To move fast, send us the old alternator's part number, a photo of the nameplate, or a clear image of the connector and mounting ears. Tell us the machine model, such as CASE 580E or 5140, and the approximate year if known. We will confirm stock, verify fitment, and quote the freight arrival time so you can decide immediately.

12V Alternator A187873 pulley and case structure detail

Frequently Asked Questions

Q: Is this 12V Alternator A187873 in stock and ready to ship right now? A: Yes, this alternator is held in our Guangzhou warehouse for fast release. We confirm the live stock status and the dispatch window at the time of your inquiry so you can plan the repair schedule around a known shipping date.

Q: Can I order just one alternator for an emergency repair? A: Absolutely. Our minimum order is one piece. You do not need to meet a bulk quantity threshold to get a single emergency replacement shipped out to your jobsite or workshop.

Q: How fast can the alternator arrive at my location? A: We quote express, air, and sea freight options with the estimated arrival time stated upfront. The final transit duration depends on your destination and the service selected, but the timeline is clear before you commit to the order.

Q: My nameplate is unreadable β€” can you identify the part from a photo? A: Yes. Send a clear photograph of the old alternator, focusing on the connector, mounting ears, and pulley. Our technical team uses these details to verify the correct unit for your specific CASE machine model.

Q: What happens if the part arrives and does not fit my machine? A: If a fitment issue occurs due to our identification error, we work to resolve it promptly. Providing accurate machine details and photos upfront is the most effective way to ensure the unit matches your equipment on the first delivery.

Compatible Brands & Models

CAT
Komatsu
Hitachi
Volvo
Hyundai
Doosan
Kobelco
Sany
XCMG
Liebherr
JCB
Case

Not sure if this part fits your machine? Send us your machine model number and serial number via WhatsApp or email -- our specialists will verify compatibility within 2 hours.

Shipping Information

  • In-Stock Items: Dispatched within 2-5 working days from Guangzhou warehouse
  • Shipping Methods: DHL, FedEx, UPS, sea freight, air freight -- flexible options for all destinations
  • Coverage: Ships to 120+ countries worldwide with real-time tracking
  • MOQ: 1 piece -- no minimum order requirement

Warranty & Quality

  • Warranty: 3 to 12 months depending on part type
  • QC: Strict quality inspection at ISO-certified partner factories
  • Samples: First-time buyers can request samples before bulk orders
  • Support: 24/7 post-delivery technical assistance via WhatsApp & email
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Our Response Guarantee
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  • Full quotation: within 24 hours
  • Support available 24/7 via WhatsApp
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