Product Specifications
| Parameter | Details |
|---|
| Part Name | Thermostat |
| Part Number (OEM Reference) | 6680512, 6674172, 6653948, 3918235 |
| Brand Compatibility | Kubota, Bobcat |
| Machine Model Fitment | Kubota D902, D1105, D1105T, D1305, D1402, V1505, V1703 Tier I, V1902, V2003T Tier I, V2203 Tier I; Bobcat 463, 553, 643, 645, 743, 751, 753, 763, 773, 7753, S150, S160, S175, S185, T190, 337, 341, 425, 428, E25, E26, E27, E27Z, L23, L28, 5600, 1600 |
| Material | Brass housing, high-temperature silicone rubber seal, precision-calibrated wax element |
| Condition | New Aftermarket |
| Warranty | 6 months against manufacturing defects |
| Packaging | Individual blister pack with protective foam insert and branded retail box |
Compatible Models
| Brand | Applicable Models |
|---|
| Kubota | D902, D1105, D1105T, D1305, D1402, V1505, V1703 Tier I, V1902, V2003T Tier I, V2203 Tier I |
| Bobcat | 463, 553, 643, 645, 743, 751, 753, 763, 773, 7753, S150, S160, S175, S185, T190, 337, 341, 425, 428, E25, E26, E27, E27Z, L23, L28, 5600, 1600 |
Struggling with Overheating Kubota D1105 or Bobcat 753 Engines? Replace Thermostat 6680512 Now
Engine overheating shuts down your excavator or skid steer — costing hundreds per hour in idle time. Counterfeit thermostats fail early, causing coolant bypass, inconsistent temperature control, and repeated engine damage. OEM replacements take weeks to arrive, delaying critical repairs on active job sites across North America, Africa, and Southeast Asia.
OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse
This 6680512 thermostat is manufactured in ISO 9001-certified facilities and tested for opening temperature accuracy (±1.5°C), pressure resistance (up to 1.2 bar), and cycle endurance (10,000+ open/close cycles). With 10 years of global export experience and 10,000+ SKUs in stock, XUNPO supplies direct-fit replacements for Kubota D1105 and Bobcat 753 engine cooling systems — verified before shipment, shipped within 2–5 working days.
Where This Part Works
This thermostat operates under continuous thermal cycling in demanding environments: construction excavation, quarry loading, port material handling, and demolition work. In Kubota D1105-powered Bobcat 753 loaders, it maintains optimal coolant flow during high-load, high-ambient-temperature operation — preventing head gasket failure and cylinder liner cavitation. For operators managing mixed-brand fleets, having one trusted source for both Kubota and Bobcat thermostats eliminates cross-sourcing delays and compatibility risk.
Engineering Details That Matter
The brass housing resists corrosion from ethylene glycol-based coolants and withstands vibration-induced fatigue better than aluminum alternatives. The wax element is calibrated to open at 82°C ±1.5°C — matching OEM specification for D1105 and 753 engines to ensure precise warm-up and stable operating temperature. High-durometer silicone sealing ensures zero leakage at system pressures up to 1.2 bar, preserving hydraulic fan motor function and radiator efficiency. Dimensional tolerances are held to ±0.1 mm, guaranteeing drop-in fit without machining or adapter kits.
The Real Cost of Wrong Parts
A $12 counterfeit thermostat can trigger $1,800 in labor to replace a warped cylinder head, plus $3,200 in downtime for a Bobcat 753 on a municipal sewer project. OEM parts cost 40% more and require 18–22 days lead time — unacceptable when equipment must be operational next morning. This replacement thermostat 6680512 for Kubota D1105 and Bobcat 753 delivers full OEM-equivalent performance at 65% of OEM price, backed by test data and real-world validation across 120+ countries. Total cost of ownership drops significantly when reliability, speed, and technical support are factored in.
Why Customers Trust XUNPO
We partner only with ISO 9001-certified factories and perform incoming material inspection on every batch. Every thermostat undergoes pre-shipment performance testing for opening temperature, sealing integrity, and mechanical durability. We offer 6-month warranty covering manufacturing defects with no-questions-asked replacement. Our team has served customers in 120+ countries since 2016 — including fleet managers in Saudi Arabia, repair shops in Poland, and rental companies in Texas. With 20+ engineers and technicians on staff, we confirm part compatibility within 2 hours. Our Guangzhou warehouse holds over 10,000 commonly used parts, enabling 2–5 working day dispatch for in-stock items like this 6680512 thermostat.
Packaging & Shipping
- Individually sealed in anti-static blister pack with molded foam cushioning and branded retail box
- In-stock items ship within 2–5 working days after order confirmation
- Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — selected per customer requirement
- Real-time tracking number provided upon dispatch, updated until delivery
- Minimum order quantity: 1 piece — designed for urgent field repairs and small workshops
Get Your Thermostat 6680512 Now
Your Kubota D1105 or Bobcat 753 won’t wait — neither should your parts order. Send us the part number, machine model, and quantity, and receive a competitive quote within 24 hours. First-time buyers can request a sample for functional testing before bulk purchase. Every hour your machine sits idle costs money — act now to restore uptime.
Frequently Asked Questions
Q: Is this an original OEM part or an aftermarket replacement?
A: This is an OEM-equivalent aftermarket thermostat, produced in ISO 9001-certified factories and tested to meet or exceed original equipment specifications for temperature accuracy, pressure rating, and service life.
Q: How do I confirm this thermostat fits my specific machine?
A: Provide your machine’s exact model number (e.g., Bobcat 753 or Kubota D1105) and year if known — our technical team will verify compatibility and respond within 2 hours.
Q: What is the warranty period?
A: 6 months from date of delivery against manufacturing defects. Defective units are replaced free of charge upon return verification.
Q: What is the minimum order quantity?
A: 1 piece — no minimums, supporting urgent maintenance and small-scale repair operations.
Q: How long does shipping take?
A: In-stock items ship within 2–5 working days. Express options deliver globally in 3–7 days; air and sea freight timelines vary by destination.
Q: Can I receive a sample before placing a bulk order?
A: Yes — first-time customers may request a sample for functional testing. Contact us via WhatsApp or email to arrange.
Ready to order or need a quote?
Send your part number, machine model, and quantity — we'll respond within 24 hours.
WhatsApp: +86 187 2205 7128 | Email: talos@xunpojx.com
