Thermostat 6680512 for Kubota D902 D1105 D1305 D1402 V1505 V1703 V1902 V2203 Bobcat 463 553 643 645 743 751 753

Product Specifications

Compatible Models

Tired of Overheating Kubota D1105 and Bobcat 753 Engines? Replace Thermostat 6680512 Before the Next Failure

One failed thermostat can shut down a Kubota D1105-powered loader or Bobcat 753 skid steer for days — costing $2,000+ in idle time per day. Many customers report repeated failures from non-OEM thermostats that open at incorrect temperatures or leak under pressure. OEM replacements take 3–4 weeks and cost up to 45% more than verified aftermarket options.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This thermostat 6680512 is manufactured in ISO 9001-certified facilities and tested for opening temperature accuracy (±1.5°C), pressure integrity (up to 1.2 bar), and cycle durability (10,000+ thermal cycles). We’ve supplied over 12,000 units to repair centers across North America and Southeast Asia since 2021 — all for Kubota D1105 and Bobcat 753 applications where consistent coolant regulation is critical during continuous digging or grading operations.

Where This Part Works

This thermostat operates in high-duty-cycle environments: urban demolition sites where ambient temps exceed 40°C, quarry loading operations with frequent load spikes, and port-side material handling under salt-laden air. In these conditions, inaccurate coolant flow leads directly to cylinder head warping, gasket failure, and premature engine wear — especially on Kubota D1105 and Bobcat 753 skid steer loaders running 10+ hours daily.

Engineering Details That Matter

The brass housing resists corrosion from ethylene glycol-based coolants and maintains dimensional stability after repeated thermal cycling. The wax element is calibrated to open fully at 82°C ±1.5°C — matching OEM specifications exactly to prevent low-temperature cavitation or high-temperature boil-over. Silicone rubber seals withstand continuous exposure to 120°C coolant without hardening or extrusion. Precision-machined flange surfaces ensure zero leakage at the engine block interface — eliminating the need for re-torquing or sealant during installation.

The Real Cost of Wrong Parts

A $12 counterfeit thermostat may save $8 upfront but often fails within 200 operating hours — triggering overheating, warped heads, and $1,800+ in labor and parts to rebuild the cooling system. Our 6680512 thermostat meets ISO 9922:2017 thermal actuation standards and delivers 3× longer service life than uncertified alternatives. Total cost of ownership drops 62% over 2 years when factoring in downtime avoidance, reduced labor, and extended engine life — especially for fleet operators managing multiple Kubota D1105 and Bobcat 753 units.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in static-resistant blister pack with molded foam insert and branded retail box
• In-stock items ship from Guangzhou warehouse within 2–5 working days
• Flexible logistics: Express (DHL/FedEx/UPS), air freight, or sea freight — quoted per destination
• Real-time tracking provided from dispatch to delivery confirmation
• MOQ is 1 piece — designed for urgent field repairs and small-batch maintenance

Get Your Thermostat 6680512 Now

Your Kubota D1105 or Bobcat 753 won’t wait — neither should your order. Send us the part number, exact machine model, and quantity needed, and we’ll email a competitive quote within 24 hours. First-time buyers may request a sample for physical verification before placing bulk orders. Every hour of downtime costs money — secure your replacement today.

Frequently Asked Questions