B&B Molders Square RV Slide-Out Covers: Sizes & OEM Numbers

B&B Molders makes square trim covers for several different RV slide-out aluminum extrusion widths. The visible cover size and the width of the extrusion beneath it are separate measurements. Use the original OEM number, dimensions and screw positions to select a replacement.

Square cover sizes and OEM numbers

B&B MPN Outside size Extrusion width Colour OEM number
94285 4¾ × 4¾ in 4½ in Polar White 201-022-00008
94286 4¾ × 4¾ in 4½ in Black 201-022-00010
94289 4¼ × 4¼ in 4 in Polar White 201-022-00021
94291 5 × 5 in 4¾ in Polar White 201-022-00038
Fit matters: Outside cover dimensions do not establish exact extrusion or screw-hole compatibility. Match the OEM reference and profile whenever possible.

How to identify the correct square cover

  1. Measure the aluminum extrusion width, not only the cap's face.
  2. Compare the outer cover size with the original cap; 94285 and 94286 are both 4¾-inch-square versions for a 4½-inch extrusion, but have different colours.
  3. 94289 has a smaller 4¼-inch-square face for a 4-inch extrusion. 94291 is 5 inches square for a 4¾-inch extrusion.
  4. Check the screw holes, flange and corner profile. An identical outside size does not prove the mounting pattern fits.
  5. Inspect and reseal damaged trim and existing screw holes before replacing the cap.

Matching B&B Molders covers

For the small pieces over slide-out rear corner seams, compare our rear transition trim guide. Compare related B&B covers.

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