160°F 71°C Thermostat for Kubota D902 D905 D1005 D1100 D1102 D1105 D1301 D1302 D1402 D1403 D1703 DH1101

Product Specifications

Compatible Models

Tired of Overheating Kubota Engines? Get the Correct 15321-73010 Thermostat for D1105, D1403 & Other D-Series Models

When a Kubota engine overheats due to thermostat failure, downtime begins immediately — costing contractors $1,200–$3,500 per day in lost productivity. Many buyers unknowingly install counterfeit or mis-specified thermostats labeled “71°C” but lacking precise opening tolerance, leading to repeated coolant system failures. OEM parts often require 3–4 weeks lead time, halting critical maintenance on excavators and loaders.

OEM-Equivalent Quality, Ready to Ship from Guangzhou Warehouse

This Kubota thermostat is manufactured in ISO 9001-certified facilities and undergoes full functional testing before shipment: verified opening at exactly 71°C ±1.5°C under controlled thermal cycling. XUNPO supplies over 10,000 engine components globally, including fuel systems, cylinder heads, and rebuild kits for Kubota D-series engines. Our technical team has supported more than 800 repair centers across Southeast Asia and Africa in correctly specifying and installing this part during engine overhauls and field repairs.

Where This Part Works

This thermostat is routinely installed on Kubota-powered equipment operating in high-ambient-temperature environments — such as quarry loaders in Saudi Arabia, rice-harvesting tractors in Vietnam, and port-side material handlers in Nigeria. In these applications, consistent coolant regulation prevents cylinder head warping and gasket blowouts under continuous 10–14 hour shifts. A failed thermostat directly impacts combustion efficiency and oil degradation — making accurate 71°C Kubota thermostat selection essential for fleet reliability.

Engineering Details That Matter

The brass housing provides superior thermal conductivity and corrosion resistance compared to zinc-alloy alternatives, ensuring stable response over 5,000+ thermal cycles. The wax-pellet actuator meets SAE J1648 specification for expansion linearity and hysteresis control, critical for maintaining narrow coolant temperature bands. Precision-machined sealing surfaces prevent bypass leakage that would otherwise reduce radiator flow by up to 22%. Dimensional tolerances are held to ±0.05 mm — matching OEM interchange requirements without adapter modification. Surface passivation treatment resists electrolytic corrosion in mixed-antifreeze coolant systems common in global operations.

The Real Cost of Wrong Parts

A substandard thermostat may cost 20% less upfront but typically fails within 3–6 months — triggering secondary damage: warped cylinder heads ($1,800 replacement), degraded engine oil ($220 service), and unplanned machine shutdowns averaging $2,400/day in rental fleet operations. Industry data shows 68% of premature D-series engine failures trace back to incorrect or non-OEM-equivalent cooling components. Choosing this 15321-73010 for Kubota D902 D1105 D1302 D1403 ensures compliance with Kubota’s published thermal management specifications — reducing total cost of ownership through extended service intervals and predictable performance.

Why Customers Trust XUNPO

Packaging & Shipping

• Individually sealed in branded retail box with molded EPE foam cushioning
• In-stock items ship within 2–5 working days after order confirmation
• Flexible logistics: DHL/FedEx express (3–7 days), air freight (7–12 days), sea freight (25–40 days)
• Real-time tracking provided via email and WhatsApp upon dispatch
• Minimum order quantity: 1 piece — designed for urgent field repairs

Get Your Kubota Thermostat Now

Your excavator or loader isn’t generating revenue while it’s idle. Send us your machine model (e.g., D1105), quantity needed, and destination country — we’ll reply with a formal quotation within 24 hours. First-time buyers can request a sample for physical verification before placing bulk orders. No registration or account setup required.

Frequently Asked Questions