B&B Square RV Slide-Out Covers: 94285, 94286, 94289 & 94291

Square end covers hide and protect the sharp corners of an RV slide-out's aluminum extrusion. B&B Molders makes several covers with similar square faces but different outside dimensions and extrusion widths. Measure the extrusion and match the original cover shape rather than choosing by colour alone.

Choose the square cover by its extrusion width

What to measure on the slide-out

The outside cover size describes the visible square piece. The extrusion width is the aluminum profile that the cap is designed to cover. Those measurements are related but not equal. Check the end-cap outline, mounting holes and the original extrusion profile as well as the measured width.

94285 and 94286: the colour pair

These share the manufacturer's 4¾-inch square format for 4½-inch-wide extrusion. The difference is finish: 94285 is polar white, and 94286 is black.

94289 and 94291: two other square sizes

The smaller 94289 is a 4¼-inch square for 4-inch extrusion. The larger 94291 is 5 inches square for 4¾-inch extrusion. Even though both are white, the outside size and designed extrusion width differ.

Product photographs and links

94285 — 4¾-inch square cover, polar white

View 94285 product

94286 — 4¾-inch square cover, black

View 94286 product

94289 — 4¼-inch square cover, polar white

View 94289 product

94291 — 5-inch square cover, polar white

View 94291 product

Before fitting a replacement corner

1. Measure the width of the metal extrusion at the exact corner where the cap installs.
2. Compare the old cover's full width and height, mounting holes and lip shape.
3. Match the maker's aftermarket or OEM part number if it remains legible.
4. Use the original fastening and sealing method where applicable, without interfering with slide movement.

Factory size and part-number drawings

The B&B Molders manufacturer parts catalog (PDF) includes the corresponding component illustrations and OEM reference numbers on printed page 66–67.

For the curved and straight-arrow shapes, use the separate slide-out arrow/curved cover guide.