24"x24" Semi‑Truck Poly Quarter Fender Mud Flap Pair | Heavy‑Duty HDPE Splash Guard with Reinforced Mounting Posts for Semi Trucks

Overview

Upgrade your semi‑truck with this heavy‑duty quarter‑fender mud flap pair, built with reinforced mounting posts for extra stability. Made from high‑density polyethylene (HDPE), this set resists rough‑road impacts, mud, gravel and harsh weather. Its curved shield profile effectively controls wheel‑well road spray, protecting your truck chassis and surrounding vehicles. All mounting hardware comes included, fitting most popular semi‑truck models.

Compatible Truck Models

Fits most standard semi‑trucks with rear axle mud flap mounting brackets, including:

• Kenworth (T680, T880, W900, T660)
• Peterbilt (389, 579, 567, 386)
• Freightliner (Cascadia, Classic XL, Columbia)
• International (LT, ProStar, 9900i)
• Volvo (VNL, VNX)
• Mack (Anthem, Pinnacle, Granite)
• Western Star (4900, 5700XE)

⚠️ Before ordering: Please measure your existing mud flap mounting area. Fender panel size is 24" × 24". Ensure clearance from tire sidewall to fender edge is sufficient for your axle configuration.

Key Features

✅ Heavy‑Duty HDPE Material 3mm‑thick matte‑black HDPE panel. Corrosion‑free, flexible yet rigid. Resists cracking, rock impacts and extreme temperature swings.

✅ Reinforced Mounting Posts Sturdy reinforced support posts deliver extra structural strength, minimizing wobble and vibration during highway driving.

✅ Curved Splash‑Control Shape Formed curved shield with rounded bottom edge. Efficiently blocks mud, water and debris from splashing onto truck body and chassis.

✅ Full Hardware Kit Included Package includes two fender panels, reinforced mounting posts, support rods, brackets, galvanized weather‑resistant bolts, U‑clamps and all fasteners. No extra parts required.

✅ Simple Installation Straightforward mounting process. Galvanized hardware stands up to road salt, rain and snow to prevent rust over long‑term use.

Installation Steps

1. Remove old mud flaps and clean the mounting frame area.
2. Attach reinforced mounting posts to the truck frame bracket position.
3. Connect the support rod to the fender panel using the included brackets.
4. Position the fender assembly and secure with U‑clamps and galvanized bolts — hand‑tighten first, then torque snug.
5. Adjust angle for optimal tire clearance and splash coverage.
6. Check all fasteners after first 100 miles of driving.

Estimated installation time: 30–45 minutes per side. Basic hand tools required (wrench, socket set).

Product Specifications

• Material: High‑Density Polyethylene (HDPE)
• Color: Matte Black
• Package: 2 × Quarter‑Fender Mud Flaps + complete mounting hardware (reinforced posts included)
• Dimensions: 24in × 24in (60.96 × 60.96 cm)
• Support rod length: 27.8in / 70.62 cm
• Top flange height: 4.3in / 10.93 cm
• Reinforced mounting post: 8in / 20.32 cm
• Panel Thickness: 3mm

Why Choose This Set

Road spray and flying debris cause paint chips and chassis corrosion for semi‑trucks. This HDPE quarter‑fender set with reinforced posts offers superior splash protection for commercial‑grade use. It outperforms thin, flimsy mud flaps, with rust‑resistant hardware for long service life.