Best Boat Trailer Fenders 13 Inch Wheels for Single-Axle Trailers

#1 · Best Overall

1. ECOTRIC Single Axle Fenders

• Material: Polyethylene,Plastic
• Compatible with Vehicle Type: Trailer,Trailers,Boat
• Material Type: Polyethylene,Plastic

Best for: HDPE fenders for boat trailers.

Why it ranks #1: A pair is explicitly designed for single-axle trailers with 13-inch wheels; the HDPE construction is UV-protected and the stated capacity is 300 pounds.

Injection-molded, UV-protected HDPE gives the ECOTRIC pair a lightweight plastic option for single-axle trailers with 13-inch wheels. Its impact- and scratch-resistant surface helps shield the wheel area while standing up to outdoor exposure, and the stated 300-pound capacity adds a practical limit for buyers evaluating the fender’s load specification.

The listed dimensions are about 33.27 inches long, 7.28 inches wide, and 11.4 inches tall, giving buyers concrete measurements to compare with their trailer’s available space. HDPE construction is described as impact resistant, scratch resistant, and UV protected, which supports outdoor use without the product’s surface being left unprotected from sun exposure or routine contact. ECOTRIC specifies a 300-pound maximum capacity. Fit is for single-axle trailers with 13-inch wheels, but axle width and mounting-hole spacing still need checking.

Skip it if you need a guaranteed fit without checking axle width or mounting-hole spacing; this is a universal-fit fender, not a confirmed match for every trailer.

For boat-trailer owners seeking a pair of UV-protected HDPE fenders for 13-inch wheels, this ECOTRIC set offers a stated 300-pound capacity. Check the listed dimensions, axle width, and mounting-hole spacing against your trailer before choosing it.

Listed on Amazon as: Set of 2 Single Axle Trailer Fenders 13" Wheels Tire Skirt Boat(Black)

#2 · Best Fit Guidance

2. Tie Down Plastic Fenders

• Material: Polyethylene
• Compatible with Vehicle Type: Trailer
• Material Type: Polyethylene

Best for: Lightweight OEM-style replacement pair.

Why it ranks #2: The pair is designed for many 13-inch trailer-wheel setups and specifically advises checking mounting slots, tire clearance, and dimensions before purchase.

Tie Down’s lightweight polyethylene fenders are intended for many common 13-inch trailer-wheel setups, giving single-axle trailer owners an OEM-style option across boat, utility, cargo, and PWC applications. The pair measures 40.38 by 9.09 by 12.18 inches, so buyers can compare its broad footprint with an existing fender before ordering.

The UV-resistant thermoplastic is described as durable for outdoor trailer environments and everyday towing, while its lightweight, corrosion-resistant construction offers a different material choice from metal fenders. Tie Down lists two fenders and dimensions of 40.38 by 9.09 by 12.18 inches, helping buyers assess coverage and available space. The listing names several trailer uses, including boat and jet ski/PWC trailers, but emphasizes checking mounting-slot spacing, tire clearance, and dimensions; those measurements remain central to a safe, workable installation.

Skip it if you cannot compare slot spacing, tire clearance, and dimensions with your trailer; ECOTRIC ET-090-MB is a shorter 29-inch option if that footprint suits your setup.

Choose this Tie Down pair if you want lightweight thermoplastic fenders for a 13-inch single-axle boat, utility, cargo, or PWC trailer. Its 40.38-inch length makes a careful footprint and clearance check especially important before installation.

Listed on Amazon as: Tie Down | Made in USA | Single Axle Plastic Trailer Fender | 13" Wheels | 40.38" x 9.09" x 12.18"

#3 · Best Step Design

3. ECOTRIC Step Fenders

• Material: Plastic,Polyethylene
• Compatible with Vehicle Type: Trailer,Trailers
• Material Type: Plastic,Polyethylene

Best for: Step-top fenders for trailer access.

Why it ranks #3: This pair fits single-axle trailers with 13-inch wheels and adds an optional step pad, with listed dimensions of 29 by 9 by 12 inches.

Built-in step surfaces distinguish these ECOTRIC fenders from plain wheel skirts, providing a place to step when accessing a compatible single-axle trailer. The black HDPE pair is specified for 13-inch wheels and measures 29 by 9 by 12 inches, with a stated 300-pound capacity and optional overall step pad.

The built-in fender skirt combines wheel-area coverage with step functionality, which can make access more convenient when the fender’s placement and structure suit the task. ECOTRIC lists high-density polyethylene and a molded-in black color described as scratch proof and able to handle temperature extremes, supporting outdoor trailer use. The 29-by-9-by-12-inch dimensions provide a basis for checking available mounting space. The listing notes that drilling may be required, so installation may involve preparing mounting holes rather than simply attaching the pair as-is.

Skip it if you need an installation that avoids drilling; ALMULOO AI-7011 lists a direct bolt-on design, though professional installation is recommended.

This pair suits boat-trailer owners who want step surfaces as well as fender coverage for 13-inch single-axle wheels. Check the 29-by-9-by-12-inch footprint and plan for possible drilling before selecting it.

Listed on Amazon as: ECOTRIC 2 Pcs Trailer Fenders W/Steps Compatible with 13" Diameter Wheels

#4 · Largest Listed Pair

4. HECASA Single Axle Fenders

• Material: Polyethylene
• Compatible with Vehicle Type: Trailer,Trailers,Boat
• Material Type: Polyethylene

Best for: Gray HDPE pair with 300-pound capacity.

Why it ranks #4: The HDPE pair is listed for single-axle trailers with 13-inch wheels and has a stated 300-pound capacity; its listed length is 39 inches.

A gray, injection-molded HDPE body and stated 300-pound capacity make the HECASA pair a practical candidate for single-axle trailers with 13-inch wheels. Its smooth surface is described as impact resistant, scratch resistant, and UV protected, giving buyers material and surface details to weigh for exposed trailer use.

HECASA specifies high-density polyethylene with injection molding, linking the plastic construction to a smooth surface described as resistant to impacts, scratches, and UV exposure. The listing gives dimensions of 39 by 8.8 by 11.4 inches, while additional facts also report a 33.27-by-7.28-by-7.09-inch dimension set. Because those measurements differ, buyers should resolve which footprint applies before planning the installation. The stated 300-pound capacity and 13-inch single-axle fit provide further selection criteria, but do not eliminate the need to compare space.

Skip it if you need one unambiguous footprint before planning installation; ECOTRIC ET-090-MB lists a single 29-by-9-by-12-inch dimension set and includes step surfaces.

This HECASA pair may suit buyers seeking gray HDPE fenders with a stated 300-pound capacity for 13-inch wheels. The conflicting dimension sets are a meaningful boundary: establish the applicable footprint before allocating mounting space.

Listed on Amazon as: HECASA Pair of Single Axle Trailer Fenders Compatible with 13" Wheels

#5 · Best Galvanized Steel

5. Tie Down Galvanized Fenders

• Material: Galvanized Steel
• Compatible with Vehicle Type: Trailer
• Material Type: Galvanized Steel

Best for: Galvanized steel for metal-fender buyers.

Why it ranks #5: This set of two uses 16-gauge galvanized steel and is specified for 13-inch tire assemblies, with a listed footprint of 27.5 by 8 by 11 inches.

Sixteen-gauge galvanized steel is the defining feature of this Tie Down pair, giving trailer owners a metal fender option with stated resistance to rust and harsh conditions. Its 27.5-by-8-by-11-inch profile is specified for 13-inch tire assemblies, with the listing tying fit to an approximately 11-inch overall tire diameter.

The galvanized-steel construction is presented as heavy-duty and corrosion resistant, making it relevant to buyers who prefer a metal fender for demanding trailer environments. Tie Down lists a pair measuring 27.5 inches long, 8 inches wide, and 11 inches high, so the dimensions can be compared with the available mounting area. Fit is limited to tire assemblies with an overall diameter of approximately 11 inches, not simply a wheel-label measurement; checking the tire assembly itself helps avoid a mismatch.

Skip it if you want a plastic fender or your tire assembly exceeds the stated approximate 11-inch diameter; ECOTRIC ET-061-MB is an HDPE alternative for 13-inch wheels.

Consider this Tie Down set if galvanized steel and a compact 27.5-inch length suit your single-axle trailer. Verify the tire assembly’s overall diameter is approximately 11 inches and compare the listed dimensions with your mounting space.

Listed on Amazon as: Tie Down Trailer Fenders – Single Axle, 16 Gauge Galvanized Steel – For 13" Tire Assemblies – 27.5" L x 8" W x 11" H (Set of 2)

#6

6. ALMULOO White Fenders

• Material: Plastic
• Compatible with Vehicle Type: Compatible with boat single-axle trailers w/…
• Material Type: Plastic

Best for: White HDPE boat-trailer pair.

Why it ranks #6: A white HDPE pair is described for boat single-axle trailers with 13-inch wheels and has a stated 300-pound capacity; verify dimensions before ordering.

Injection-molded HDPE and a white finish define this ALMULOO pair for compatible single-axle boat trailers with 13-inch wheels. The listing gives a 300-pound capacity and dimensions of 291⁄8 by 12 by 9 inches, while its direct bolt-on description points to a mounting approach that buyers can assess against their trailer.

The high-density polyethylene body is described as offering strength, impact resistance, and outdoor performance, supporting use above the tires where the listing says it helps shield against mud and splashes. Its 300-pound capacity and stated dimensions give buyers concrete criteria for comparing the pair with available space. A direct bolt-on design can simplify the mounting workflow when existing points align, but the listing does not guarantee universal fit. It recommends professional installation, and wheel size, fender dimensions, and mounting space should be checked beforehand.

Skip it if you want step surfaces on the fenders; RUxospefw JIANYANG188 lists top, front, and rear step dimensions for its white pair.

Choose this white ALMULOO pair if your boat trailer has a compatible single axle and you value HDPE construction with a stated 300-pound capacity. Confirm the listed footprint and mounting space, and account for recommended professional installation.

Listed on Amazon as: 2PCS Single AXLE Trailer Fenders 13" Wheels Tires Plastic White

#7

7. Southwest Wheel Round Fenders

• Material: Steel
• Compatible with Vehicle Type: Trailer
• Material Type: Steel

Best for: Unpainted steel pair for custom finishing.

Why it ranks #7: The pair of 16-gauge steel round fenders is recommended for 13-inch wheels and measures 28 inches long, 8 inches wide, and 10 inches tall.

Unpainted 16-gauge steel gives this SOUTHWEST WHEEL pair a plainly specified metal construction and leaves its finish unfinished. The round single fenders are recommended for 13-inch wheels and measure 28 inches long, 8 inches wide, and 10 inches high, providing a defined profile for trailer owners to compare.

The 16-gauge steel body offers a metal alternative to plastic fenders, while the unpainted finish matters to buyers who want to account for surface finishing as part of the project. The pair’s 28-by-8-by-10-inch dimensions provide a clear basis for checking space around a single-axle wheel. SOUTHWEST WHEEL recommends the fenders for 13-inch wheels, but the listing does not specify a coating or a mounting method. Buyers should plan accordingly rather than treating the pair as finished or ready to install.

Skip it if you want a galvanized finish without painting; Tie Down 86266L-2 lists 16-gauge galvanized steel for 13-inch tire assemblies.

Consider this pair if you want round 16-gauge steel fenders and can accommodate their 28-by-8-by-10-inch profile. The unpainted finish is a key boundary: account for finishing before choosing them for an exposed trailer.

Listed on Amazon as: Pair (2) of Round single Trailer Fenders (13" wheels)

#8

8. RUxospefw White Fenders

Best for: White fenders with multiple step surfaces.

Why it ranks #8: The listing specifies a white pair for single-axle trailers with 13-inch wheels and gives 29-by-9-by-12-inch dimensions plus top and end-step measurements.

Top, front, and rear step surfaces distinguish this white RUxospefw pair, giving boat-trailer owners listed step areas alongside wheel-fender coverage. The top step is 7.7 inches wide, while the front and rear steps are 4 inches long; the fenders are specified for single-axle trailers with 13-inch wheels.

The listing gives an overall size of 9 inches wide, 29 inches long, and 12 inches tall, allowing buyers to compare the fenders with available trailer space. Its separate top, front, and rear step measurements identify the step areas rather than leaving buyers to infer them from the overall dimensions. The application is single-axle trailers with 13-inch wheels. Material, capacity, and installation method are not supplied, so buyers should not assume a particular load rating or mounting workflow from the step details alone.

Skip it if you need a stated load capacity or material specification; ECOTRIC ET-090-MB lists HDPE construction and a 300-pound capacity alongside step surfaces.

This pair fits buyers prioritizing explicitly measured step areas on white fenders for a 13-inch single-axle boat trailer. Its 29-by-9-by-12-inch dimensions help assess space, but material, capacity, and installation details remain unspecified.

Listed on Amazon as: Pair of White Single Axle Trailer Fenders for Boat 13" Wheels Tire Skirt

#9

9. Phefop Metal Fender

• Material: Metal
• Compatible with Vehicle Type: ATV
• Material Type: Metal

Best for: Metal fender for compact trailer setups.

Why it ranks #9: Its metal body is listed for 13-inch wheels and measures 24.21 by 7.87 by 7.28 inches, but the package description identifies only one fender.

A metal body measuring 24.21 by 7.87 by 7.28 inches gives this Phefop fender a compact listed footprint for compatible 13-inch single-axle setups. The product description names trailers, RVs, yachts, and ATVs, and supports bolt mounting or installation by drilling, offering two stated approaches to mounting.

The metal construction is presented as resisting road debris and scrapes better than plastic fenders that become brittle over time, making material choice central to this product’s appeal. Its 24.21-by-7.87-by-7.28-inch size gives buyers a footprint to compare with a wheel and available mounting area. The description supports bolt mounting and also says it can be mounted by drilling, giving installers options depending on the setup. It is listed for 13-inch wheels across trailer, RV, yacht, and ATV applications.

Skip it if you need a matched pair in one package; SOUTHWEST WHEEL 2137X2 is listed as a pair of steel fenders for 13-inch wheels.

This Phefop fender suits buyers seeking a metal option for a 13-inch wheel on a trailer, RV, yacht, or ATV. Note that the package list specifies one mudguard, and choose bolt mounting or drilling based on your installation.

Listed on Amazon as: 13 Inch Single Axle Trailer Fenders for Boat RV ATV Wheel

#10

10. Generic White Fender Pair

• Compatible with Vehicle Type: ATV

Best for: White pair for ATV-listed applications.

Why it ranks #10: The title identifies a pair for 13-inch wheels, but the supplied fitment specification lists ATV rather than boat trailer and provides no dimensions.

A white pair is the clearest listed detail of this Generic trailer-fender product, whose title identifies single-axle trailers with 13-inch wheels. Its specifications identify the compatible vehicle type as ATV and name the included component as a white pair, so buyers should weigh those limited details against their intended trailer application.

The product title calls out single-axle trailer fenders for 13-inch wheels, but the supplied specifications identify ATV as the compatible vehicle type. That distinction makes the fit information less complete than listings that provide measurements or mounting details. The item is identified as a white pair, while no dimensions, material, or installation method are supplied here to support a more specific assessment. Buyers considering it for a boat trailer should resolve those fit and installation details before relying on the title alone.

Skip it if you need stated dimensions or material details to assess fit; ALMULOO AI-7011 lists overall dimensions and a direct bolt-on installation approach.

This option is best considered by buyers whose setup matches its 13-inch single-axle title and ATV compatibility field. For boat-trailer installation, the lack of dimensions, material, and mounting details is an important boundary to resolve first.

Listed on Amazon as: Pair of Single Axle Trailer Fenders For 13" Wheels Tire Skirt Boat