SHIELDS 1/2 Inch Front Windshield for CAT B Series Excavators

The CAT 308 to 321 excavators on SHIELDS' list, from the 308D and 308E2 CR to the 314F CR, 315F LCR and 321D LCR, share one flat front glass set: glass 353-1912 for the upper and 353-1939 for the lower. SHIELDS makes both in 1/2 inch polycarbonate shaped like the originals, duplicates the mounting holes and coats both sides with SUPERCOAT. You can buy each window on its own, in clear or tint. The 308E CR and 308E2 CR also use a different set, so check your glass number first.

SHIELDS 1/2 inch polycarbonate windows replace the flat front upper and lower glass on the CAT excavators SHIELDS groups as its 308 to 315 set. Both are flat like the original glass and coated on both sides with SHIELDS' SUPERCOAT hard coat. Each window is sold on its own in clear or tint.

SHIELDS CAT B Series Excavator Windshield Features: CAT Excavator Window Replacement for 308 to 321 Models

• 1/2 inch formed 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
• Upper replaces glass 353-1912; lower replaces 353-1939
• Flat upper and lower, formed to the shape of the original glass
• 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

CAT B Series Upper and Lower Window Part and Glass Numbers

SHIELDS publishes the material data that applies to these CAT B Series excavator 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 CAT 308 to 321 Excavators Do These Windows Fit?

Fits CAT B Series excavators.

SHIELDS lists these windows, glass 353-1912 (upper) and 353-1939 (lower), for the CAT 308D, 308E CR, 308E SR, 308E2 CR, 308E2 SR, 308ES CR, 314D CR, 314D LCR, 314E CR, 314E LCR, 314F CR, 315F LCR and 321D LCR.

The 308E CR and 308E2 CR also appear on SHIELDS' mini hydraulic list with different glass numbers, so check the glass number on your window.

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.