ALMULOO Splash Guards Fender Liner Shield for Toyota 4Runner/FJ Cruiser/GX470 — Black Rubber, 4-Piece Kit, Impact-Resistant

ALMULOO splash guards fender liners are heavy-duty rubber wheel-well shields designed to protect the inner body panels and undercarriage of compatible Toyota and Lexus SUVs from gravel, mud, and road noise.

These replacement fender liners fit a range of popular SUVs — including the 2003–2022 Toyota 4Runner, 2007–2014 Toyota FJ Cruiser, and 2003–2009 Lexus GX470 — and serve as a fortified barrier behind each wheel. Built from resilient rubber, the liners resist cracking and abrasion while remaining lightweight to avoid adding unnecessary strain to suspension or body mounts. The kit ships with four mud flaps and the mounting clips needed for installation; note that vehicles equipped with KDSS (Kinetic Dynamic Suspension System) are not compatible, and professional installation is recommended if you're not experienced with wheel-well hardware.

How do these fender liners protect my vehicle on rough roads?

The liners create a protective layer between tires and the vehicle's inner metalwork, deflecting stones, salt, and road debris that would otherwise dent or corrode panels and exposed piping. Their impact-resistant rubber absorbs and disperses force, reducing the likelihood of punctures and abrasion.

• Blocks flying gravel and sediment from direct contact with metal parts
• Reduces chipping and paint damage inside wheel wells
• Protects wiring and brake lines from debris exposure

Will these fender liners help reduce road and tire noise?

Yes — the dense rubber construction dampens sound generated by tires and loose gravel, helping to lower cabin noise levels. While not a complete soundproofing solution, they noticeably cut down on knocking and rattling created by road debris.

• Isolates gravel impacts to reduce audible knocks
• Minimizes reverberation inside wheel wells
• Improves overall in-cabin quietness on rough surfaces

Are these liners easy to install and what hardware is included?

The kit includes four splash guards plus the clips required to fasten them to the body. An instruction sheet is not included, so a professional installation or basic mechanical know-how is advised to ensure proper fit and secure attachment.

• Includes 4 mud flaps and mounting clips
• No written installation manual provided
• Professional installation recommended for correct alignment and sealing

Which models and part numbers are these compatible with?

Verify your vehicle model year and suspension options before ordering. These fender liners are specifically manufactured to replace OEM part numbers 5373535150, 5373635150, and 5388635020 for the listed model years, and they will not fit vehicles equipped with KDSS.

• Compatible: 2003–2022 Toyota 4Runner
• Compatible: 2007–2014 Toyota FJ Cruiser
• Compatible: 2003–2009 Lexus GX470 — not for KDSS models

Who is this for? These ALMULOO fender liners are aimed at SUV owners who drive on gravel, unpaved or salted roads and want a rugged, maintenance-friendly solution to protect inner fenders, wiring, and underbody components. If you own a compatible 4Runner, FJ Cruiser, or GX470 and are replacing worn or damaged liners, or upgrading to improve noise reduction and debris protection, this kit provides a durable, OEM-replacement style option. Confirm fitment against your vehicle's year and suspension spec before purchase.