If you’re outfitting a pontoon or other small to mid-size boats, a reliable stern light cover is essential for clear visibility and safe navigation. This guide highlights five compatible options, focusing on durability, fit, and brightness of the 360-degree frosted lens. Each product is best for a specific boat setup—whether you need a universal replacement, compatibility with Attwood models, or a sturdy polycarbonate cover for harsh marine environments. Use the quick comparison table below to choose the best match for your vessel and operating conditions.
| Product | Best For | Key Benefit |
|---|---|---|
| Adabuing 91017B7 Replacement Boat Stern Light Cover | Pontoon and All-Round Light Fans | Exact-fit universal 2-inch globe replacement |
| Saillong Replacement Boat Stern Light Cover (Attwood 91017B7) | Attwood-equipped boats | Effortless screw-in design, 360-degree visibility |
| Ahuliao 91017B7 Stern Light Cover | Attwood and Seachoice models | Polycarbonate, durable, fits many hardtop/radar arches |
| Marinexplore Stern Light | Pontoon and Fishing Boats | Ultra-bright LED with 3NM visibility |
| 201 Boat Stern Light Lens Cover (Perko-compatible) | Perko and similar all-round lights | 3-inch replacement lens, durable polycarbonate |
Adabuing 91017B7 Replacement Light Cover
The Adabuing 91017B7 is a universal 2-inch glass-like frosted globe replacement for stern lights. It is designed for compatibility with Attwood early models (5100, 5110, 7100, 7101, 7105) and Seachoice series (05571, 05691, 05701), excluding certain telescoping all-around lights. This cover is sized at an outside diameter of 1.9 inches, inside diameter of 1.5 inches, and a height of 2 inches, delivering a 360-degree frosted glow. Best for pontoon boats with standard 2-inch globes that need a straightforward, exact replacement to restore clear navigation signals.
Who it’s best for: boat owners needing a direct, easy-fit replacement for Attwood/Seachoice stern lights without replacing the entire fixture.
Limitations: does not fit the 5610-48-7 telescoping all-around light; verify your fixture model before purchasing.
Saillong Replacement Light Cover for Attwood 91017B7
Saillong’s replacement cover mirrors the Attwood 91017B7, featuring an easy screw-in design that simplifies installation. It lists compatibility with Attwood early models (5100, 5110, 7100, 7101, 7105) and uses a universal 2-inch globe format with 1.9-inch outside diameter, 1.5-inch inside diameter, and 2-inch height. The 360-degree frosted lens improves brightness while staying eye-friendly, minimizing glare during dusk or foggy conditions. Best for owners who want a near-identical look and fit to the original Attwood cover without tools-heavy changes.
Best for: Attwood-equipped boats seeking a straightforward, compatible upgrade.
Consideration: double-check the model compatibility to avoid an incorrect fit.
Ahuliao Stern Light Cover for Attwood
Ahuliao’s 91017B7 replacement uses polycarbonate for durability in harsh marine environments. It matches Attwood and Seachoice series, excluding the 5610-48-7 telescoping all-around light. The outer diameter is 1.9 inches, inner diameter 1.5 inches, and height 2 inches with a 360-degree frosted lens for enhanced visibility. This version emphasizes impact resistance and long-term use on pontoons, hardtops, and radar arches. Best for boats needing a robust, impact-ready cover that maintains clear signaling.
Best for: boats that demand a tough, long-lasting lens cover with broad compatibility.
Limitation: not compatible with the 5610-48-7 telescoping all-around light.
Marinexplore Stern Light – LED, 3NM
Marinexplore offers a 5W LED stern light designed to deliver true 3 nautical mile visibility, suitable for pontoon and fishing boats. It features IP67 submersible protection and a 180-degree fold-down base for daytime protection and easy storage. The housing combines marine-grade stainless steel, aluminum, and ABS for durability in salt and fresh water. Best for boats requiring brighter, more reliable navigation lighting with flexible deployment options.
Best for: vessels needing high-brightness LED lighting with rugged, submersible construction.
Limitation: LED fixtures may have higher power draw than some halogen equivalents, depending on configuration.
201 Boat Stern Light Lens Cover for Perko All-Round Lights
This 201 Boat replacement is designed for Perko all-round stern lights and similar 3-inch systems, including 1134, 1137, 1400, 1401, 1403, 1404, and 1611 series. The cover uses polycarbonate material for tough resistance to impacts and wear, making it a practical option for pontoon, hardtop, and radar-arch installations that rely on consistent signaling. Best for Perko-based setups seeking a reliable 3-inch lens replacement with sturdy construction.
Choose this if: your stern light uses Perko or similar 3-inch all-round fixtures and you need a robust replacement lens.
Caution: verify the exact fixture size and mounting spec to ensure proper fitment.
Buying Guide
What should I check before buying a stern light cover?
First, confirm your light fixture model and the globe size. Common sizes include 2-inch, 2.5-inch, and 3-inch globes. A precise outer diameter, inner diameter, and height ensure a snug, weatherproof fit.
Which material matters most?
Polycarbonate covers offer strong impact resistance and durability in harsh marine environments, while frosted, anti-glare lenses reduce glare for easier nighttime visibility.
Are all-round lights compatible with all covers?
No. Some covers list compatibility with specific Attwood, Seachoice, or Perko series. Always cross-check model numbers (for example 5100, 5110, 7100, 7101, 7105, 05571, 05691, 05701, 1134, 1137, 1400, 1401, 1403, 1404, 1611) before purchasing.
What installation considerations exist?
Look for screw-on designs that match your current hardware and require minimal tools. A universal size note—such as 1.9-inch outer diameter and 1.5-inch inner diameter with a 2-inch height—helps in predicting fit across brands.
How to evaluate brightness and visibility?
360-degree frosted lenses provide even illumination and reduce glare for nearby sailors. For darker conditions, LED options may deliver greater brightness and longer range.
What are common limitations to expect?
Some covers do not fit telescoping all-around lights or certain non-standard models. Always verify compatibility with your specific light fixture and vessel length.
Frequently Asked Questions
- Q: Will these covers fit all stern lights? A: They fit many Attwood, Seachoice, Perko, and universal 2-inch to 3-inch globe styles, but always verify exact model compatibility.
- Q: Do these covers improve nighttime visibility? A: Yes, 360-degree frosted lenses provide improved visibility while reducing glare for safe operation.
- Q: Are these covers easy to install? A: Most listed options use screw-in or universal fitting, designed for straightforward installation.
- Q: Can I use a cover on a pontoon’s rear light without removing the existing fixture? A: In most cases, yes, as long as the globe size and mounting diameter match the replacement.
- Q: Do these covers require any maintenance? A: Routine cleaning to remove salt, grime, and fogging helps preserve clarity of the lens.
- Q: Is a higher-brightness LED option better for safety? A: For higher visibility in poor conditions, LED versions provide strong output, but ensure electrical compatibility with your boat’s system.