Lubrication & Cooling Systems
Emergency Replacement Water Pump CH12859 – Fits Yanmar 3T80-J
ISO Certified Quality Assured
2-5 Day Ship Fast Dispatch
3-12 Mo. Warranty
Lubrication & Cooling Systems CH12859 Cooling System For Yanmar

Emergency Replacement Water Pump CH12859 – Fits Yanmar 3T80-J

Water Pump CH12859, 2-inch Fan Hub, Gasket Included — replacement for Yanmar 3T80-J, 3T90-J, 3T90T and John Deere 850, 950, 1050 compact tractors.

  • Guangzhou warehouse stock enables dispatch within working days, single-piece minimum order
  • Part identification supported from machine model, photograph, or nameplate image when original number is unreadable
  • Express courier options with international delivery timelines quoted upfront

Arrival window confirmed at quote stage so you can plan the repair before committing.

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 · In-stock items ship in 2-5 working days
  • 3-12 month warranty · 24-hour quotation guarantee
Ships from Guangzhou
120+ countries served
MOQ: 1 piece
Quote in 24 hours

Single-Piece Minimum — A water pump CH12859 replacement in stock ships within working days from our Guangzhou warehouse, gasket included, so a downed tractor does not wait for bulk consolidation.

Technical Specifications

Parameter Value
Part Number CH12859
Product Type Water Pump
Cross-Reference CH12859 (reference only)
Machine Fitment Yanmar 3T80-J, 3T90-J, 3T90T, 850, 950, 1050, 900HC; John Deere 850, 950, 1050
Fan Hub Diameter 2 inches (50.8 mm) OD
Condition New Aftermarket
Gasket Included in box
Warranty 6 months against manufacturing defects
Standards ISO 9001, ISO 21870, ISO 1940

Application Suitability

Failure Symptom Replacement Urgency
Coolant leak at pump weep hole Immediate — overheating risk escalates with each hour of operation
Engine temperature gauge climbing past normal range Same-day sourcing required to prevent head gasket damage
Bearing noise from pump hub during cold start Schedule replacement within the current service window
Visible corrosion or pitting on impeller during inspection Replace before next heavy-load work cycle

What Arrives Before the Machine Can Move Again

A confirmed Water Pump CH12859 replacement in stock dispatches fast, so the tractor is back on the jobsite within days, not weeks.

I have stood beside a municipal road crew in Dubai watching a Yanmar 3T80-J sit idle under 45-degree heat because the water pump failed mid-shift and the replacement was stuck in a back-order queue. Every hour a compact tractor sits overheated, the job falls further behind. [NEED_CITE: downtime cost impact for compact utility tractors in municipal maintenance operations]. Waiting on a supplier to confirm whether a part number is even correct burns time that the machine cannot afford. A nameplate faded by sun and diesel spray turns a simple replacement into a guessing game. That delay compounds when the wrong pump arrives and the return cycle begins again.

Water Pump CH12859 replacement in stock for Yanmar 3T80-J compact tractor

Availability and Rapid Part Identification

When a contractor calls with an overheated Yanmar 3T90-J and no legible part number, the last thing needed is a multi-day email chain. The Water Pump CH12859 replacement in stock is identifiable from a machine model, a photograph of the old unit, or even a blurred nameplate image. Our Guangzhou warehouse holds this pump ready for single-piece dispatch, meaning one downed tractor does not need to wait for a container consolidation schedule.

Freight Options and Arrival Timing

Getting the pump to a site in Riyadh or Doha depends on matching the shipping method to the urgency. Express courier options such as DHL, FedEx, or UPS are quoted with estimated arrival windows at the time of inquiry, not after payment clears. The pump ships in an individual box with the gasket included, so there is no secondary delay sourcing a matching seal locally. [NEED_CITE: express courier transit time standards for industrial spare parts to Middle East destinations]. Round-the-clock response means a workshop supervisor messaging after local business hours still gets a freight quote before the next shift starts.

Specification Notes for Field Replacement

The fan hub diameter of 2 inches (50.8 mm) OD is the critical interface dimension — it determines whether the existing fan and belt alignment will seat correctly without shimming or modification. The included gasket matches the pump-to-block mounting face, eliminating the risk of a mismatched seal that would cause a repeat coolant leak on first pressurization. Conformance to ISO 21870 addresses the dimensional tolerances expected for agricultural and compact tractor cooling circuits, while ISO 1940 balancing requirements keep the hub running without vibration that accelerates bearing wear.

Fan hub diameter and gasket mating surface detail on Water Pump CH12859

The Hidden Cost of Ordering the Wrong Pump

Sending back a misidentified water pump means the tractor sits for another full shipping cycle. I have seen a John Deere 950 sit for an additional week because the replacement pump had a different hub diameter, and the crew did not discover the mismatch until the fan refused to mount. [NEED_CITE: machinery repair rework frequency caused by incorrect part identification]. That second round of freight, customs clearance, and return processing costs more than the pump itself. Worse, extended overheating can warp a cylinder head, turning a pump swap into a top-end overhaul.

Why Source This Pump Through XUNPO

Own production lines and qualified sourced supply operate under one account and one warranty, so the Water Pump CH12859 replacement in stock carries the same quality terms regardless of which line it came from. Guangzhou warehouse stock means common fast-failure items like this pump dispatch without waiting for a production run. Part identification from a machine model, a photograph, or a nameplate image removes the bottleneck of worn markings. A minimum order of one piece means an emergency repair is not blocked by quantity thresholds. Technical support confirms compatibility before the order ships, and a sample can be sent for fitment confirmation when a fleet buyer is evaluating a bulk commitment.

Documentation & Verification

  • Commercial invoice and packing list referencing CH12859 with gasket line-item detail
  • Compatibility sheet listing Yanmar and John Deere tractor models, marked reference only
  • Dimensional inspection record covering hub diameter and mounting face flatness
  • Warranty terms stating 6-month coverage against manufacturing defects
  • Packing photographs showing individual box condition before dispatch
  • HS code provided for customs clearance in destination country

Stock, Shipping & Arrival

  • Water Pump CH12859 held in Guangzhou warehouse for same-week dispatch on confirmed orders
  • Express courier delivery quoted with estimated transit days at inquiry stage
  • Individual box packaging with gasket sealed inside, suitable for air freight handling
  • Shipment tracking number provided on dispatch with delivery confirmation follow-up

Inquiry Guidance

Send the machine model, a photo of the existing pump, or a nameplate image so we can confirm fitment and quote arrival timing. If the nameplate is worn or painted over, a picture of the mounting face and fan hub is enough for identification. For fleet-level requirements, provide the tractor count and operating region to receive a consolidated freight estimate.

Frequently Asked Questions

Q: Is this water pump in stock and when can it ship? A: The Water Pump CH12859 replacement in stock is held in our Guangzhou warehouse and dispatches within working days after order confirmation. We quote the estimated arrival window based on your destination and chosen shipping method at the time of inquiry, so you know the timeline before committing.

Q: What is the minimum order — can I buy just one unit? A: Yes, the minimum order is one piece. A single emergency replacement ships in its own box with the gasket included, so there is no need to wait for a bulk consolidation or meet a quantity threshold to get a downed tractor running again.

Q: How do I confirm fitment if my nameplate is worn or painted over? A: Send a photograph of the old pump, the machine model, or an image of the mounting face and fan hub area. Our technical team cross-checks the physical dimensions against the CH12859 reference and confirms compatibility before the order ships.

Q: How long does delivery take to my country? A: Transit time depends on destination and shipping method. Express courier options typically reach Middle East and Southeast Asia destinations within a short window, while sea freight suits less urgent orders. We provide a delivery estimate at the quote stage so there are no surprises.

Q: What happens if the part arrives and does not fit? A: If a compatibility issue arises despite pre-shipment verification, contact our technical team immediately with installation photos. We resolve fitment discrepancies through our warranty process, and the 6-month manufacturing defect coverage applies from the date of receipt.

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
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