Lead Time: ¼” – 45 days, ⅜” – 45 days, ½” – 10 days, ½” TINT – 25 days
Material: Impact-grade polycarbonate — SHIELDS® SUPERCOAT™ both sides
OEM Glass Replaced: with enhanced safety, durability, and performance. For seamless installation, wi | match before ordering | RD578-94620
Compatible Machines: Kubota Excavator Windshield KX057-5 | Shields Lexan Polycarbonate
Thicknesses: 1/4" | 3/8" | 1/2" (Clear and Tint where available)
Warranty: 10 years — breakage, coating failure, excessive haze, excessive yellowing
OEM Glass Replaced: with enhanced safety, durability, and performance. For seamless installation, wi | match before ordering | RD578-94620
Compatible Machines: Kubota Excavator Windshield KX057-5 | Shields Lexan Polycarbonate
Thicknesses: 1/4" | 3/8" | 1/2" (Clear and Tint where available)
Warranty: 10 years — breakage, coating failure, excessive haze, excessive yellowing
✅ Exact OEM replacement at every thickness — including 3/8" and 1/2"
Every thickness is cut to exact OEM dimensions and drops into the factory opening. The perimeter is edge-milled to OEM glass thickness so the panel seats in the factory gasket and frame. Original latch, frame, and mounting hardware are reused — no drilling, shimming, or trimming; no hardware kit required.
Same impact-grade polycarbonate used in check-cashing and teller windows
260× stronger than glass at half the weight. Post-coated with SHIELDS® proprietary SUPERCOAT™ — a silicone hard coating applied after forming, abrasion-resistant to steel wool. Wiper-safe. Inspect wipers before use and clear debris from the frame seal. 10-year coverage against breakage, coating failure, hazing, and yellowing.
📋 Overview
A broken windshield stops the machine, exposes the operator, and typically means days waiting for a dealer part. The SHIELDS® SUPERCOATED™ Polycarbonate Windshield for Kubota Excavator drops into the factory opening at every thickness — edge-milled at the perimeter — so it fits exactly as the OEM glass did. No modifications, no extra hardware. Year-round benefit beyond impact protection: polycarbonate reduces summer heat gain and winter heat loss, keeping operators more comfortable in all seasons, not just during forestry work.
eskidsteer.com — (866) 757-8337
Description:
Shop the Kubota Excavator Windshield: KX057-5 Upper and Lower for a high-strength, durable replacement that perfectly replicates OEM glass.
Compatibility: This item replaces Kubota Glass #RD578-94620 (Upper) and #RD579-46440 (Lower). Please ensure the glass numbers match before ordering.
Supported Models: KX057-5, U48-5, U55-5
Material Options: It is offered in 1/4", 3/8", and 1/2" CLEAR POLYCARBONATE with SHIELDS® SUPERCOAT™ on both sides for superior durability.
Why Choose SHIELDS® SUPERCOATED™ Polycarbonate Windshields for Your Kubota Excavator?
SHIELDS® windshields provide the FORM ~ FIT ~ FUNCTION of OEM glass with enhanced safety, durability, and performance. For seamless installation, windows are precision-cut and formed to match the OEM design, including hardware mounting holes. The SUPERCOAT™ post-coating offers glass-level abrasion resistance with additional performance benefits.
Key Performance Advantages:
- Half the Weight, 250x Stronger: Provides incredible strength while being lightweight.
- Comfort Features: Reduced noise, improved light transmittance, reduced summer heat gain, and decreased winter heat loss.
Additional Information:
- Windshield Options: Front Upper Windshield, Front Lower Windshield
- Available Sizes: .25 (1/4"), .375 (3/8"), .5 (1/2")
- Finish: Clear or Tint
Upgrade your Kubota Excavator with SHIELDS® Polycarbonate Windshields for unbeatable strength and efficiency!
Thickness-Chart:
🚜 Machine Compatibility
| Compatible Kubota Models |
|---|
| Kubota Excavator Windshield KX057-5 | Shields Lexan Polycarbonate |
Verify fitment by OEM glass number before ordering. Contact eskidsteer.com at (866) 757-8337 with questions.
🔩 Specifications
| Specification | Detail |
|---|---|
| Material | Impact-grade polycarbonate (aircraft-grade polycarbonate) |
| Coating | SHIELDS® SUPERCOAT™ — proprietary silicone hard coating, post-applied after forming; abrasion-resistant to steel wool; UV-stable; wiper-safe |
| OEM Replaced | with enhanced safety, durability, and performance. For seamless installation, wi | match before ordering | RD578-94620 |
| Fit | Exact OEM at every thickness — perimeter edge-milled to OEM glass thickness; original hardware reused |
| Weight | Half the weight of OEM glass |
| Wiper Compatibility | Yes — inspect blade and clear frame debris before use |
| Warranty | 10 years from date of sale — manufacturing defects: breakage, coating failure, excessive haze, excessive yellowing |
| Shipping | Calculated at checkout — foam-packed in purpose-built boxes |
📐 Window Thickness Guide
All thicknesses fit the OEM frame identically. Select based on your application. Heavier applications require thicker panels for adequate protection.
| Attribute / Application | 1/4" | 3/8" | 1/2" |
|---|---|---|---|
| Attributes | |||
| SUPERCOAT™ Both Sides | ✓ | ✓ | ✓ |
| Optical Clarity | ✓ | ✓ | ✓ |
| Drop-In Replacement | ✓ | ✓ | ✓ |
| Milled Edges (gasket installation) | — | ✓ | ✓ |
| Etched Edges (glue-in installation) | ✓ | ✓ | ✓ |
| Uses Existing Hardware | ✓ | ✓ | ✓ |
| Applications | |||
| General Use (not including any of the below) | ✓ | ✓ | ✓ |
| Material Handling | — | ✓ | ✓ |
| General Contracting | — | ✓ | ✓ |
| Grass Mowing | — | ✓ | ✓ |
| Tree Shears | — | — | ✓ |
| Demolition | — | — | ✓ |
| Mulching | — | — | ✓ |
| Ground Clearing | — | — | ✓ |
Not sure which thickness is right for your operation? Contact eskidsteer.com at (866) 757-8337.
✅ Why Choose SHIELDS® Over OEM Glass
- Stop paying downtime cost for broken glass — 260× stronger polycarbonate breaks far less frequently on the job.
- Exact OEM fit at every thickness — edge-milled perimeter original hardware reused. No extra parts or modifications.
- SUPERCOAT™ wiper-safe hard coating — post-applied after forming for maximum adhesion. Abrasion-resistant to steel wool. UV-stable against yellowing and hazing.
- Year-round operator comfort — reduced summer heat gain, reduced winter heat loss.
- 10-year warranty — breakage, coating failure, hazing, yellowing (manufacturing defects).
- Half the weight of glass — easier installation, less hinge stress over time.
- eSkidSteer replaces freight-damaged items — inspect within 7 days, photograph damage, we handle the rest.
🔧 Gasket Inspection
OEM gaskets are frequently damaged when the original glass breaks. Before installing, inspect the cab frame gasket — replace if torn, hardened, or deformed. A properly seated gasket is essential for weather sealing regardless of windshield material.
📦 Freight Damage — What to Do
eSkidSteer replaces items damaged in transit. Your obligation: inspect within 7 days of delivery and photograph any damage before filing a claim.
- Open the box immediately — freight damage to a flat polycarbonate panel is often invisible until unpacked. Do not sign a clean Bill of Lading without opening the box first.
- Inspect within 7 days of delivery. Damage reported after 7 days cannot be submitted.
- Photograph all damage — photos of the packaging and the panel are required to process the carrier claim.
- Contact eskidsteer.com at (866) 757-8337 with photos and we will arrange replacement.
⚠️ You must open the box before signing the delivery receipt. A clean signature = accepted delivery. Note any visible damage on the carrier receipt before signing.
↩️ Returns
Wrong product shipped by eSkidSteer: We will ship the correct replacement at our cost and arrange return pickup at our cost.
Buyer-selected wrong fitment: Verify your OEM glass number and machine model before ordering. Contact eskidsteer.com at (866) 757-8337 with fitment questions before placing your order.
❓ Frequently Asked Questions
Q: Will a thicker polycarbonate door still fit my OEM frame and latch?
A: Yes. Every thickness — including 3/8" and 1/2" — is cut to exact OEM dimensions and drops into the factory opening. The perimeter is edge-milled to OEM glass thickness so the panel seats in the factory gasket and frame. No accommodation is required for the added thickness.
Q: Does the 1/2" panel fit the same as the original glass?
A: Yes. The 1/2" panel is edge-milled to OEM glass thickness at the perimeter. It drops into the same factory frame, seats in the same gaskets, and is secured with the same hardware. No extra hardware, shimming, or drilling required.
Q: Can I still use my windshield wipers?
A: Yes. SUPERCOAT™ is wiper-compatible. Inspect your wiper blade before use and clear any rocks, sticks, or debris from the frame seal. Trapped debris scratches any surface — this is standard wiper maintenance, not a SHIELDS® limitation.
Q: What does the 10-year warranty cover?
A: Manufacturing defects: breakage, coating failure, excessive haze, and excessive yellowing — up to 10 years from date of sale. Does not cover scratching from normal use, impact damage from operation, or improper installation.
Q: Should I inspect or replace my gaskets?
A: Inspect them before installing. OEM gaskets are frequently damaged when the original glass breaks. Replace any gasket that is torn, hardened, or deformed before installing the new panel.
Q: What is SUPERCOAT™ and why does it matter?
A: SUPERCOAT™ is a proprietary silicone hard coating applied post-forming — not co-extruded into the material. Post-application gives higher adhesion and abrasion resistance. It is abrasion-resistant to steel wool and UV-stable. Cheap uncoated polycarbonate yellows and hazes within months outdoors; SUPERCOAT™ is designed to maintain clarity for the full warranty term.
Q: Shipping?
A: Shipping is calculated at checkout — simply add the item to your cart, enter your delivery address, and the shipping charge will be displayed before you complete your order.
Q: How do I order?
A: Add the item to your cart directly on eskidsteer.com and complete checkout online. If you have a fitment question before purchasing, call us at (866) 757-8337.
- Choosing a selection results in a full page refresh.