XMK RV Skylight Inner Dome Replacement 14" x 22" (4" Height) — Clear Window, Thick ABS Durability

The XMK 14" x 22" RV Skylight Inner Dome is a direct-fit replacement inner garnish with a clear window that restores natural light and seals your RV skylight opening.

If your RV, camper, or food truck skylight inner dome is cracked, yellowed, or leaking, swapping it for a robust replacement can refresh interior light, improve insulation, and stop drafts. This XMK inner dome is molded from thicker ABS plastic, includes a clear central window, and fits the common 14" x 22" inner opening used in many recreational vehicles. Choose the correct dome height (2.9" or 4") based on your ceiling thickness to ensure a proper seal and neat finish.

How do I know this inner dome fits my skylight opening?

Measure the rough ceiling hole or remove the old garnish and check its outer dimensions. The XMK inner dome is designed to match standard 14" x 22" inner openings, with an outer flange sized to sit neatly against existing cutouts.

• Inner dome dimension: 14" x 22" — fits standard inner openings.
• Outer flange dimension: 23.6" x 16" x 4" for a clean overlap.
• Available heights: 2.9" or 4" — select based on ceiling depth.

What materials and durability features does the XMK dome offer?

This inner dome is constructed from impact-resistant ABS plastic that resists high temperatures and common chemicals encountered in vehicle interiors. The clear window is integrated to pass natural light while the thicker plastic body adds strength and longevity compared with thinner OEM pieces.

• Durable ABS construction for impact resistance and heat tolerance.
• Clear window to maintain daylight and interior visibility.
• Chemical-resistant finish for longer life in varied environments.

Is installation difficult and what hardware is included?

The XMK inner dome is designed for straightforward replacement: it arrives with pre-drilled mounting holes and screws so you can align and fasten it quickly. The dome also leaves reserved areas where you can drill additional holes if your application requires custom fastening points.

• Includes pre-drilled holes and mounting screws for standard fitment.
• Reserved flange space allows additional drilling if needed.
• Works with common RV skylight trim and sealing practices.

How does this dome affect light and thermal behavior inside the RV?

The clear center window restores ambient daylight, reducing dependence on cabin lights during daytime hours. By creating an air pocket between inner and outer skylight components, it also helps moderate heat transfer, improving comfort without altering the skylight’s overall profile.

• Clear window maximizes natural illumination inside the vehicle.
• Entrapped air between layers reduces direct heat transfer.
• Fresh, white garnish improves interior aesthetics and brightness.

Who is this for: The XMK 14" x 22" RV Skylight Inner Dome is aimed at RV owners, camper renovators, mobile food-truck operators, and anyone replacing a worn or damaged skylight inner garnish. Choose the correct height (2.9" or 4") for your ceiling thickness, and use the included mounting hardware for a fast upgrade that restores light, improves interior appearance, and helps maintain a better thermal barrier. This part is ideal for do-it-yourself repairs as well as professional installers seeking a rugged, ready-to-fit replacement.