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CarCover Gold Shield 5L Class A RV Cover 37 to 40 Feet -- 5-Ply Top, Gray (5RV-CA-3740)

CarCover Gold Shield 5L Class A RV Cover for 37 to 40 foot motorhomes, gray 5-ply fabric with zippered panels and built-in vents, SKU 5RV-CA-3740
UnitedCovers 5-Layer Class A RV Cover UC-CA-3740 - 37' to 40'
 
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List Price: $659.49
: $276.99
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Part Number: UC-CA-3740
Manufacturer: UnitedCovers
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CarCover Gold Shield 5L Class A -- 37 to 40 ft CarCover Gold Shield 5L Class A RV Cover -- Fits 37 to 40 Foot Motorhomes

When your Class A motorhome is parked for weeks or months at a time, a quality cover is the difference between a rig that looks showroom-fresh and one that needs paint correction, mold remediation, and oxidation repair. The Gold Shield 5L uses a five-layer laminated fabric on the roof and a three-layer construction on the sides -- with a micro-porous film in each -- to block water, block UV, and still breathe enough to prevent the trapped moisture that destroys finishes from the inside out. Designed specifically for full-size Class A coaches from 37 to 40 feet, it accommodates up to three rooftop AC units and installs without tools.

Purpose-Built Protection for Large Class A Coaches

Most universal RV covers fight a losing battle against large coaches: they billow in wind, collect water on the roof, and leave the rear cap or front cap exposed. The Gold Shield 5L is sized and engineered specifically for the 37-40 foot Class A footprint -- a cover length of 40.5 feet, 9 feet wide, and 10.33 feet tall -- so the fabric drapes properly over slide toppers, rooftop equipment, and the squared-off corners typical of diesel pushers and gas coaches alike.

The top layer is intentionally oversized, extending downward past the roofline to overlap the side panels. This overlap seam, reinforced with double-line stitching at every junction, eliminates the gap where wind-driven rain typically infiltrates lesser covers. Elastic hems at the front and rear corners pull the cover snug against the fascia and tail cap, while an adjustable buckle system underneath the coach removes slack and stops the cover from flagging in the wind.

5-Ply Roof Construction

Four polypropylene PLUS layers plus one micro-porous film layer. Blocks rain, UV, hail, and debris while allowing vapor to escape from beneath.

3-Ply Side Panels

Two polypropylene PLUS layers and one micro-porous film layer on all sides. Prevents mildew and rot while maintaining breathability against slideouts and body panels.

Zippered Entry Panels

Heavy-duty zippered panels let you access the coach door and compartments without removing the entire cover. Essential for rigs stored for extended periods.

Fits Up to 3 AC Units

Rooftop profile accommodates up to three air conditioners. No awkward bunching over shrouds or risk of cover damage from AC edges.

Fabric Technology -- What the Layers Actually Do

The term "5-ply" gets used loosely in the cover market. In the Gold Shield 5L, the five layers on the top panel serve distinct functions:

  • Outer polypropylene PLUS layers -- UV-stabilized, abrasion-resistant, and color-stable in prolonged sun exposure. The gray finish reflects sunlight to reduce interior heat buildup.
  • Micro-porous film (middle layer) -- The film is the key differentiator. It is hydrophobic on the outer face (water beads and runs off) and vapor-permeable on the inner face. Condensation and humidity from within the coach can escape; rain cannot enter. This is what prevents the mold and mildew that standard non-breathable tarps cause.
  • Inner polypropylene PLUS layers -- Soft-finish layers that contact the roof surface and body panels. They cushion against wind-induced abrasion so the cover does not scuff clear coat or graphics over a long storage season.

The three-layer side construction uses the same micro-porous film between two polypropylene PLUS layers. Sides see less UV and precipitation than the roof, so three layers provide the right balance of protection and packability without adding unnecessary bulk to a cover that already weighs 25 lbs.

Dirt and Dust Blocking: The tightly woven polypropylene PLUS outer layer blocks over 98% of airborne dirt and dust from reaching the coach surface -- critical for coaches stored near roads, fields, or construction sites.

Fit System -- How It Stays Secure

A cover that lifts off or flaps in wind is worse than no cover: it abrades the finish, tears its own seams, and can damage adjacent property. The Gold Shield 5L uses four mechanisms to stay put:

  • Adjustable buckle straps -- Pass under the chassis and cinch from both sides. Weighted buckle ends simplify threading under the coach without getting on your hands and knees.
  • Elastic corner hems -- Front and rear hems stretch to grip the fascia and tail cap contours, closing off the open ends that wind exploits.
  • Slip-seam profile -- The cover's overall shape is tapered to minimize the sail effect. Rather than catching wind like a flat sheet, the slip-seam design lets airflow redirect around the coach profile.
  • Built-in vents -- Vents equalize pressure inside and outside the cover, reducing the ballooning effect that occurs when wind finds its way under a sealed cover edge.
Ladder Cap and Gutter Protection: The cover includes a ladder cap -- a reinforced sleeve that fits over the rear ladder to prevent the ladder's sharp edges from cutting through the fabric. Gutter protection strips shield the cover where it drapes over rain gutters, another common failure point on Class A coaches.

Reflective Panels and Nighttime Safety

Large RV covers on a parked coach present a low-visibility hazard in campgrounds, storage lots, and driveways at night. The Gold Shield 5L integrates reflective panels that catch headlights and other light sources, making the covered coach visible to drivers moving through tight storage rows or campground loops. This is a practical safety feature, not a marketing point, on a 40-foot object that is easy to clip in low-light conditions.

Installation Tip: Two people make installation on a 40-foot coach dramatically easier. Start by draping the cover lengthwise from the roof center, then work front to rear pulling the side panels down evenly before cinching the buckle straps. The weighted buckle ends can be tossed under the chassis rather than crawled under to retrieve.

Warranty and Repair

CarCover backs the Gold Shield 5L with a Lifetime Manufacturer Warranty. A patch kit is included in the box for field repairs -- small punctures or tears from tree limbs or sharp objects can be addressed immediately rather than waiting for a warranty claim. The included storage bag keeps the cover clean and compact when the coach is in use.

What Is Included: Gold Shield 5L cover sized for 37-40 ft Class A coaches, adjustable buckle strap system, patch kit for field repairs, and a storage bag for off-season or travel storage.
Size Confirmation: This cover is sized for Class A motorhomes 37 to 40 feet in length. Measure your coach from the front cap to the rear cap -- not hitch to bumper -- before ordering. Coaches under 37 feet or over 40 feet will not achieve a proper fit. CarCover offers additional size-specific covers for other length ranges.

Cover Dimensions

Fits Coach Length37 ft to 40 ft (Class A motorhomes)
Cover Length40.5 ft
Cover Width9 ft
Cover Height10.33 ft
Cover Weight25 lbs

Materials and Construction

Top Panel Construction5-ply (4x polypropylene PLUS + 1x micro-porous film)
Side Panel Construction3-ply (2x polypropylene PLUS + 1x micro-porous film)
ColorGray
StitchingDouble-line at all panel junctions
Hem TypeElastic at front and rear corners
Water ResistanceWater-resistant, breathable (micro-porous film)
UV ProtectionUV-stabilized polypropylene PLUS outer layer
Dirt and Dust BlockageOver 98% of airborne particulates

Features and Fitment

Coach ClassClass A motorhome
AC Unit AccommodationUp to 3 rooftop AC units
Entry AccessHeavy-duty zippered panels
VentilationBuilt-in vents (pressure equalization)
Securing SystemAdjustable buckle straps with weighted ends
Wind ResistanceSlip-seam profile, under-coach buckle system
Ladder ProtectionLadder cap included
Gutter ProtectionYes, built-in gutter protection strips
Reflective PanelsYes, for nighttime visibility
Sunlight ReflectionYes, gray finish reflects radiant heat

In the Box

CoverGold Shield 5L cover (40.5 ft x 9 ft x 10.33 ft)
Securing StrapsAdjustable buckle strap system
Patch KitIncluded for field repairs
Storage BagIncluded

Warranty and Identification

ManufacturerCarCover
Part Number5RV-CA-3740
WarrantyLifetime Manufacturer Warranty
InstallationTool-free, two-person recommended for 40 ft coaches
Important Information
  • This cover fits Class A motorhomes 37 to 40 feet long only. Measure the coach body (front cap to rear cap) before ordering. Do not use hitch-to-bumper measurements.
  • This cover is designed for Class A motorhomes specifically. It is not intended for Class B vans, Class C coaches, fifth wheels, or travel trailers, which have different roof and body profiles.
  • Always clean and dry your RV before installing the cover for long-term storage. Installing over dirt or moisture accelerates the very damage the cover is meant to prevent.
  • Do not install over antennas, roof racks, or accessories with exposed sharp edges without using appropriate protective padding. The included ladder cap addresses the rear ladder specifically.
  • Inspect the cover and buckle straps periodically during extended storage, especially after high-wind events. Re-cinch buckles as needed to maintain a snug fit.
  • Removing the cover for extended trips and storing it in the included bag extends cover life significantly versus leaving it folded on the coach roof.
Protecting your RV with a quality cover is essential for maintaining its value and longevity. RVs are significant investments that are often exposed to harsh weather conditions, making them susceptible to damage from corrosion, mold, and UV rays. Unlike standard vehicles, RVs serve as mobile homes for many, and a cover can provide added insulation and privacy, enhancing your comfort while protecting against the elements. By investing in an RV cover, you reduce wear and tear, ensuring that your RV remains in excellent condition for years to come.

How To Measure Your RV:

Length: Measure the longest distance from the front to the rear of the RV, including bumpers, spare tires, and ladders. Measure to the front of the bumper or the bunk area, whichever is farther.

Height: Measure the highest point of the RV's sidewalls from the top of the roof to the outside frame, excluding ground clearance and roof-mounted accessories.


How to Install Your RV Cover:

1. Identify the front of the cover by locating the "Front" tag on the interior.
2.
Lay the cover lengthwise on the ground, inside out, with the exterior facing up.
3.
Fold the sides toward the center and roll the cover from the rear, leaving the front end loose.
4.
Position the rolled cover at the rear of the RV near the ladder.
5.
Loosen the roll slightly, then climb the ladder while holding the front end.
6.
Pull the cover onto the roof gradually until you have a strip covering the entire roof.
7.
Starting at the front, unfold the cover side to side, letting it drape down the sides as you move to the rear.
8.
Ensure the corner opposite the ladder is positioned under the cover’s corner.
9.
Climb down while bringing the cover down with you, then adjust the cover as needed.

Removal:

1. Undo all straps and zippers on the cover.
2.
Lift the front of the cover to the top of the RV.
3.
Pull the cover down from the rear.

For Cleaning:

Proper care of your RV cover is essential for maintaining its performance and water resistance. Contaminants like dirt and grease can damage the cover, so regular washing is recommended for long-lasting protection.

You can wash the cover by hand or in a washing machine. For hand washing, install the cover on your RV, rinse it with a hose, then use a cloth and multi-purpose cleaner to scrub. Rinse again and either towel dry or let it air dry.

For machine washing, use the largest machine available, set it to gentle mode, and wash with mild powder detergent in cold water—avoid bleach and fabric softeners. Rinse the cover twice to remove all detergent, and always air dry.



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