SHIELDS 1/2 Inch Front Windshield for Kubota KX040-4 Excavators

The Kubota KX040-4 has a curved front upper and a flat front lower, and SHIELDS makes both in 1/2 inch polycarbonate: the upper replaces glass RD558-94620 and the lower replaces RD451-46440. SHIELDS lists the same pair for the KX057-4 and U44-4, the upper alone for the U55 and the lower alone for the U56. SHIELDS duplicates the mounting holes and mills the edges for your original hardware, and SUPERCOAT covers both faces. Buy the upper, the lower or both, each in clear or tint.

SHIELDS 1/2 inch polycarbonate windows replace the front upper and lower glass on the Kubota KX040-4 excavator. The upper is curved and the lower is flat, like the original glass, and SHIELDS coats both sides with its SUPERCOAT hard coat. Each window is sold on its own in clear or tint, so you can replace the upper, the lower or both.

SHIELDS Kubota KX040-4 Excavator Windshield Features: Kubota Excavator Window Replacement, Curved Upper and Flat Lower

• Upper replaces glass RD558-94620; lower replaces glass RD451-46440
• Curved upper and flat lower, formed to the shape of the original glass
• 1/2 inch polycarbonate, which SHIELDS rates at more than 260 times the strength of glass at half the weight
• SUPERCOAT hard coat on both sides resists abrasion, so you can keep using your wiper
• Drop-in replacement: mounting holes duplicated and edges milled so the original hardware carries over
• Tint is built into the material, not a film; SHIELDS advises against adding aftermarket tint film because the coating will not hold adhesives

Kubota KX040-4 Upper and Lower Window Part and Glass Numbers

SHIELDS publishes the material data that applies to these Kubota KX040-4 windows: the SHIELDS polycarbonate windshield technical data sheet (PDF) covers impact strength, light transmission and UV resistance, the SHIELDS SUPERCOAT hard coat data sheet (PDF) covers abrasion and chemical resistance, and the SHIELDS polycarbonate vs glass comparison sheet (PDF) compares weight, sound, heat and light by thickness.

Which Kubota Excavators Do These KX040-4 Windows Fit?

Fits the Kubota KX040-4 excavator.

SHIELDS also lists these windows for the Kubota KX057-4 and U44-4, the upper alone for the U55 and the lower alone for the U56. The KX057-5, U48-5 and U55-5 take a separate SHIELDS window set.

Send us your machine make, model and serial number, plus the glass number from your current window if you have it, and we will confirm the fit before you order.