Sea-Dog 415110-1
For marine wing-nut battery terminals using smaller cable sizes; red and black identify polarity.
Sea-Dog Battery Terminal Covers, Cable Sizes & Wing-Nut Set
Sea-Dog battery-terminal covers help shield exposed marine battery connections from accidental contact and corrosion. There are different cable entry sizes for wing-nut terminal covers, plus separate PVC caps for other electrical studs. The 415210-1 is actual positive/negative terminal hardware, not an insulating cap. Check the connection before selecting a part.
Marine battery terminal covers compared
Check cable gauge, connector type and shape. The manufacturer dimensions A, B and D refer to locations on the original technical drawings, not automatically the battery-post diameter.
| Exact MPN | Component | Cable size | Manufacturer dimensions |
|---|---|---|---|
| 415110-1 | PVC terminal covers | 4, 2 and 1 AWG | A ½ in; B 1⅝ in |
| 415115-1 | PVC terminal covers | 1/0 and 2/0 AWG | A ⅝ in; B 1⅝ in |
| 415194-1 | Insulating stud cap | 8 to 2 AWG | A 2 3/16 in; D 5/16 in |
| 415196-1 | Insulating stud cap | 2 AWG to 2/0 AWG | A 3 1/16 in; D 9/16 in |
| 415210-1 | Die-cast lead wing-nut terminals | Not a cable cover | Positive/negative battery post sizes differ |
Different components: 415110-1 and 415115-1 are red/black wing-nut terminal-cover pairs in two cable size ranges; 415194-1 and 415196-1 are individual red stud-style insulating caps. 415210-1 supplies actual positive/negative wing-nut terminals in die-cast lead. Do not confuse the catalog case pack with the quantity sold in an individual listing.
What to check before replacing a terminal cover
- Disconnect the battery system following the equipment manufacturer's safe isolation procedure before handling terminals.
- Determine whether the original connection uses a marine wing-nut battery terminal or a standalone high-current stud on another component.
- Read the wire gauge and compare it with the intended cover entry: AWG 4/2/1, 1/0–2/0, AWG 8–2 or AWG 2–2/0.
- Check the stud and post geometry against Sea-Dog's original A–D dimension drawing; a similar-looking red cap can be a different size.
- Check polarity and mounting clearance, and ensure the cover stays in place without straining the cable or preventing a secure connection.
For manufacturer measurements, see the wing-nut battery terminal-cover chart, stud-cap chart and terminal-set drawing.
Find the matching Sea-Dog components
These products are purchased online and ship from supplier warehouses; in-person viewing and pickup are unavailable.
Sea-Dog 415115-1
Larger cable-entry version of the wing-nut terminal cover; not the same opening as 415110-1.
Sea-Dog 415194-1
Insulates exposed connections on suitable electrical studs, such as equipment terminals and distribution points.
Sea-Dog 415196-1
Larger PVC insulating cap for compatible high-amperage stud connections.
Sea-Dog 415210-1
The actual positive/negative terminal set that converts compatible battery posts to stud connections; it is not a pair of covers.
Related marine electrical parts
For correctly rated circuit protection, see our Sea-Dog inline AGC fuse-holder guide. Insulating covers protect against accidental contact; they do not replace a properly sized fuse or circuit breaker.
About NewRVParts
NewRVParts is an online-only source for brand-new RV parts and accessories, truck camper equipment, towing and trailer parts, truck accessories, and marine products. We serve customers throughout Canada and the United States, with products from trusted manufacturers shipped through a large North American distribution network. Shop online for replacement parts, equipment, and accessories delivered directly to your door.
Shop RV Parts