Boston Whaler 315 Conquest — Quick-Reference Specs
- Boat Model: Boston Whaler 315 Conquest
- Cover Type: T-Top Boat Cover
- Length Overall (LOA): 31' 6"
- Beam: 10'
- Dry Weight: ~8000 lbs
Cover Features
- Fabric Options: 9oz solution-dyed marine fabric or premium Sunbrella acrylic
- Coverage Type: T-Top cover wraps hull below hardtop; hardtop remains exposed
- Construction: Reinforced stitching, hem cord at rubrail, adjustable tie-down straps
- Durability: Solution-dyed fabric (5–7 years); Sunbrella acrylic (8–10 years)
- Fit: Custom-fitted to Boston Whaler 315 Conquest specifications
- Protection: UV-resistant, water-repellent, mildew-resistant, breathable
Additional information
Choose Your Cover Fabric
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
| Weight | 43 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
The 315 Conquest T-Top cover is available in 9oz solution-dyed marine fabric (rated 5-7 years), a lighter 7oz option for sheltered storage, or premium Sunbrella acrylic (rated 8-10 years). All fabrics are water-repellent, mildew-resistant, and UV-protective.
Yes. The cover is pattern-cut specifically for the Boston Whaler 315 Conquest T-Top, with reinforced cutouts that wrap cleanly around the T-Top legs and accommodate the pilothouse cabin structure. The hardtop remains exposed while the cover protects everything below.
Yes. The cover wraps the entire hull below the T-Top hardtop, fully enclosing the pilothouse cabin, windows, helm station, cockpit, and all exterior components. This shields the cabin windows and interior from UV damage, salt buildup, and debris.
Installation takes under 10 minutes with one person on a boat this size. Drape the cover from the T-Top frame, pull it down to the rubrail, secure the adjustable tie-down straps, and buckle everything tight. No tools required.
Yes. The cover works equally well on dock lifts, in wet slips, and in dry storage. A 31-foot pilothouse boat of this weight is typically marina-kept, and the cover's design accommodates both lift cradles and dock line access points.
Yes. The cover creates a complete barrier over the cockpit and pilothouse, shielding your helm electronics, GPS, fishfinder, radar, autopilot, upholstery, and gelcoat from UV rays, rain, salt spray, and debris.
Every cover includes a 2-year manufacturer warranty covering defects in materials and workmanship. The solution-dyed and Sunbrella fabrics are engineered to maintain their color and integrity well beyond the warranty period.
This cover is designed for the Boston Whaler 315 Conquest equipped with a factory T-Top or hardtop. It fits standard production models (2014-2020) with the same top configuration.
The 9oz solution-dyed fabric is available in Navy, Black, and Charcoal. Sunbrella acrylic offers an expanded color palette. Select your preferred color and fabric during checkout.
Yes. Free standard shipping is included for all orders within the continental United States, with delivery typically within 1-2 business days.
Boston Whaler 315 Conquest T-Top Boat Cover — Pilothouse Performance, Complete Protection
The Boston Whaler 315 Conquest measures 31’3″ with a 10’8″ beam and approximately 8,800 pounds dry — a pilothouse walkaround that combines the offshore reach of a sport fishing boat with the shelter and comfort of an enclosed helm station. Powered by twin outboards up to 700 total horsepower with 291 gallons of fuel, the 315 Conquest delivers the range to run distant offshore structure, canyon trips, and multi-day tournaments while its 20-degree deadrise handles steep head seas with confidence. Built on the foam-cored “Unibond” hull that has defined Boston Whaler’s unsinkable legacy since 1958, the Conquest features an enclosed pilothouse cabin with berth, galley, and head — plus a walkaround deck layout that provides 360-degree fishability. A custom-fitted T-Top cover from Perfect Fit Boat Covers wraps the entire hull below the hardtop, shielding the pilothouse, cockpit, electronics, and exterior upholstery from UV degradation, salt spray, and seasonal weather. Browse the full lineup of center console and walkaround boat covers to see how Perfect Fit protects every hull type.
Engineered to the Conquest’s Pilothouse Geometry
This cover is pattern-cut to the 315 Conquest’s unique hull profile — including the pilothouse cabin structure, walkaround deck, wide 10’8″ beam, and twin-engine transom — with reinforced cutouts that wrap cleanly around the T-Top legs without sagging or excess material. A sewn-in hem cord traces the rubrail while adjustable tie-down straps lock the cover from gunwale to gunwale. Installation takes one person under ten minutes on a boat this size — drape from the hardtop frame, pull to the rails, strap, buckle, and walk away. The reinforced construction is built to handle the stresses of covering a 31-foot pilothouse hull. Boston Whaler owners looking for similar offshore-grade protection will find the same precision fit on the Boston Whaler 320 Outrage T-Top cover.
Premium Fabric for a Premium Pilothouse
Choose from 9oz solution-dyed marine fabric rated for 5–7 years of hard use, 7oz performance-weight fabric ideal for covered storage, or premium Sunbrella acrylic engineered to last 8–10 years under direct sun. Every option is water-repellent, mildew-resistant, and double-stitched at every seam for long-term durability. The breathable construction prevents trapped moisture and condensation while blocking 99% of UV rays — critical protection for the 315 Conquest’s pilothouse windows, helm electronics, cockpit upholstery, and premium gelcoat. Each cover includes a 2-year manufacturer warranty and free standard shipping to the continental US within 1–2 business days. If your fleet includes other Boston Whalers, check out the Boston Whaler 270 Dauntless T-Top cover built with the same marine-grade materials.
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