GMC Sierra 2500/3500 (2015-2019) PRO-X-TEND Streamline Style Fender Flares

RDJ Trucks PRO-X-TEND Streamline Bolt-On Fender Flares for 2015-2019 GMC Sierra 2500/3500 HD

Upgrade your 2015-2019 GMC Sierra 2500/3500 HD with RDJ Trucks PRO-X-TEND Streamline Bolt-On Fender Flares. These sleek, smooth-design flares deliver a clean, modern extended look while providing 2.00" of extra tire coverage and superior protection against road debris, rocks, and rust.

Designed to provide a sleek, streamlined off-road appearance without pockets or exposed bolts, these flares install easily using existing OE mounting points — no drilling required. They offer a factory-plus fitment with a refined, aerodynamic profile that sets your Sierra HD apart.

Why Choose RDJ Trucks PRO-X-TEND Fender Flares?

We bring you top-quality fender flares at the most competitive prices by skipping the fancy packaging and expensive marketing. You get the same premium engineering and durable construction as big-name brands — at a much better value.

Available Finishes

Base Textures

• Smooth Paintable Black — Matte black smooth surface. Leave as-is or paint to match your truck. 3-Year Limited Warranty
• Aggressive Textured Black — Rugged matte black textured finish for an amped-up off-road look. 3-Year Limited Warranty

Upgraded Texture

• Rhino Skin™ Coating — Upgrade your smooth or textured base finish with durable Rhino Skin™ for maximum scuff and fade resistance.  Rhino Skin™ is a gritty, matte black spray-on coating (think spray-in bed liner) that adds an extra layer of solid protection to your flares.  Limited Lifetime Warranty

Key Features & Benefits

• Complete Set of 4 Flares — Front and rear, driver and passenger side coverage
• 7.00" Tall Streamline Design with 2.00" Extra Tire Coverage — Wider than stock for better protection and larger tire clearance
• Bolt-On Installation — Uses existing factory holes + included OE-style hardware. No drilling into the truck body
• Premium Construction — Made from durable virgin OEM-approved ABS plastic that resists cracking, fading, and chalking
• Smooth Pocket-Free Design — Clean, modern extended look with no visible bolts for a sleek aerodynamic appearance
• Protects Your Truck — Covers rust, wheel lip damage, and helps prevent future debris damage
• Individual Replacement Flares Available

Specifications

• Vehicle Fitment: 2015-2019 GMC Sierra 2500/3500 HD
• Style: PRO-X-TEND Streamline Bolt-On Style
• Material: Virgin Acrylonitrile Butadiene Styrene (ABS)
• Height: 7.00"
• Additional Tire Coverage: 2.00"
• Warranty: 3-Year or Limited Lifetime (depending on finish)

Part Numbers

• 25-4025S - GMC Sierra 2500/3500 2015-2019 Smooth Finish - UPC 724235833843
• 25-4025T - GMC Sierra 2500/3500 2015-2019 Textured Finish - UPC 724235832597
• 25-4025R - GMC Sierra 2500/3500 2015-2019 Smooth w/Rhino Skin Coating - UPC 7242358388234
• 25-4025X - GMC Sierra 2500/3500 2015-2019 Textured w/Rhino Skin Coating - UPC 7242358301992

Installation & Shipping

Simple bolt-on installation — no drilling required. A 2-person job is recommended for easiest installation. Full instructions included.

PDF Installation Guide - 25-4025

Handling Times:
Smooth & Textured Black: Ships same business day (orders placed before 2pm Eastern)
Rhino Skin finishes: Coated-to-order, 3-5 business days

Simple & Free Returns

• We kindly request that you make every effort to ensure you are making an informed purchase using the information on this page, installation instructions, and our support staff if needed.
• 30-Day Standard Return Period (extended to 60 days between November 1 and December 31)
• Free Returns — We provide a pre-paid FedEx return shipping label
• Shop worry-free with RDJ Trucks!

Ready to give your 2015-2019 GMC Sierra 2500/3500 HD a sleek, modern extended stance with perfect fitment and long-lasting durability? Add your RDJ Trucks PRO-X-TEND Streamline Fender Flares to the cart today and enjoy free shipping on every order.