How to Replace Boat Cup Holders (and Pick the Right Size)
Why Replace Your Cup Holders?
Cup holders are one of the most-used fittings on any boat, and one of the first to show age. Plastic ones yellow and crack in the sun, drains clog with debris, and cheap stainless can rust. Replacing them is a quick, inexpensive way to freshen up a cockpit, and most jobs take less than an hour with basic tools.
Step 1: Measure the Existing Holder
Before shopping, pull out the old holder (or measure it in place) and note:
- Cutout diameter: the size of the hole in the deck or panel. This is the most important measurement.
- Flange diameter: the lip that sits on the surface. A new flange that's the same size or slightly larger will cover old screw holes and sealant marks.
- Depth: how much room there is below the panel. Check for wiring, hoses, or structure underneath.
Step 2: Choose the Right Style
- With drain or without: Holders in open cockpits should have a drain so rain and spray don't pool. Models like the large black cup holder with drain connect to a small hose. Inside a cabin or under a hardtop, a no-drain holder like the black cup holder, no drain is simpler to install.
- Single or double: A double cup holder works well at the helm or in a console where space is limited.
- Stainless steel: For a premium look that won't fade, try a stepped stainless steel drink holder, which fits cans, bottles, and tumblers.
- Fold-down: On bulkheads and seat backs, a fold-down drink holder folds flat when not in use.
- Extra large: Insulated tumblers won't fit a standard holder. Consider an extra large cup holder.
See every option in our Drink Holders collection.
Tools and Materials
- Replacement cup holder
- Screwdriver or drill
- Putty knife or plastic scraper
- Marine sealant
- Acetone or isopropyl alcohol
- Hose and clamp (for drain models)
Step 3: Remove the Old Holder
Back out any screws, then slide a putty knife under the flange to break the sealant. If it has a drain, reach underneath and disconnect the hose. Lift the holder straight out.
Step 4: Prep the Opening
Scrape away old sealant and clean the surface with acetone or alcohol. Test-fit the new holder. If the hole needs to be slightly larger, enlarge it carefully with a rotary tool or hole saw, and seal any exposed fiberglass or core.
Step 5: Connect the Drain
For drain models, attach a hose to the drain barb and route it to a bilge area or overboard fitting, keeping it sloped downhill so water flows freely. Secure it with a stainless clamp. Need an adapter? See our hose barb and pipe thread size guide.
Step 6: Seal and Install
Run a bead of marine sealant under the flange, press the holder into place, and install screws if the model uses them. Wipe away any excess sealant and let it cure before use.
Not Sure What Fits?
Email info@replacementboatparts.com with a photo and your cutout measurement, and we'll help you find a match.