How to Install Gloss Black Mud Flaps on the Land Rover Defender L663 (2020–2026)

The Land Rover Defender L663 is a vehicle that earns its status through presence as much as capability. Every detail matters — and the wheel arches are no exception. Mud flaps are one of the most practical upgrades you can make, shielding your paintwork, sills, and undercarriage from road debris, mud, and stone chips. But with the right set, they do far more than protect: they sharpen the Defender's already imposing stance.

These Gloss Black Mud Flaps from Victorious Automotive are purpose-designed for the Defender L663 90, 110, and 130 (2020 model onwards). They're crafted from high-grade durable plastic with a premium gloss black finish that integrates seamlessly with the Defender's bold exterior lines. Crucially, they install without any drilling — a clean, non-intrusive fit that preserves your vehicle's factory integrity.

Whether you're driving on country lanes, trail roads, or urban streets, these mud flaps add a finishing touch to the exterior while doing serious work in protecting your investment. This guide walks you through everything: what's included, the tools you'll need, and a step-by-step installation process that most owners can complete in under an hour.

Why these mud flaps transform the Defender L663

The Defender L663 carries a silhouette that's deliberately rugged and upright. The exposed wheel arches are a signature feature — and they draw the eye. Factory-fit mud flaps on the L663 are often minimal, leaving the lower bodywork vulnerable to the kind of debris that off-road use or motorway driving throws up relentlessly.

The Victorious Gloss Black Mud Flaps address this directly. The glossy finish matches brilliantly against darker Defender colour ways — Santorini Black, Carpathian Grey, Eiger Grey — and creates an intentional, aggressive look that reads as purposeful rather than tacked-on. On lighter colours like Fuji White or Hakuba Silver, the contrast is equally striking, lending a two-tone edge to the exterior.

Beyond aesthetics, the practical benefit is significant. High-grade plastic construction means these flaps flex under impact rather than crack, and they're resistant to the UV degradation that makes cheaper alternatives look faded and brittle within a season. The interior secure bolt mounting system keeps them locked tight through both road and trail use, while maintaining a sleek profile at the wheel arch.

This is the kind of upgrade that, once fitted, you'll wonder how you drove without. It completes the lower half of the Defender's exterior, ties the wheel arches together, and does the essential job of keeping your bodywork clean.

Easy — 45–60 mins

Gloss Black Mud Flaps for Land Rover Defender L663 (2020–2026)

High-grade durable plastic mud flaps in a gloss black finish. No-drill installation with interior secure bolt mounting. Full set of 4 for complete vehicle coverage. Compatible with 90, 110, and 130 variants.

£250.00 excl. VAT

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What's in the box

• 4× gloss black mud flaps (front pair and rear pair) for complete vehicle coverage
• Interior secure bolt hardware for each flap
• Access to exclusive installation video guide
• Product instruction sheet

Tools you'll need

• Trim removal tool or flat-headed screwdriver (wrapped in tape to protect paintwork)
• Socket set or adjustable spanner
• Torque wrench (recommended for final bolt tightening)
• Clean microfibre cloths
• Isopropyl alcohol or panel wipe solution
• Protective gloves
• Jack stands (optional, but useful for easier access to rear arches)

Before you start

1. Park on a firm, level surface and apply the handbrake.
2. Clean the wheel arch area thoroughly with a microfibre cloth to remove any loose mud, dirt, or debris before fitting.
3. Wipe the mounting points with isopropyl alcohol and allow to dry completely — this ensures a clean, secure fit at each fixing point.
4. Watch the included installation video through to completion before beginning physical installation — knowing each step in advance will make the process smoother.
5. Lay out all four mud flaps and hardware on a clean surface and confirm you have the correct front and rear pieces for your variant (90, 110, or 130).

Step-by-step installation

Identifying the factory mounting points inside the front wheel arch

Front mud flap secured and flush against the wheel arch

Fitting the front passenger side flap and checking symmetry from the front

Rear flap in position — note the clean, flush line against the arch

Common mistakes to avoid

• Over-tightening bolts: Plastic flaps can crack or deform if bolts are overtorqued. Snug and firm is sufficient — use a torque wrench if uncertain.
• Skipping the cleaning step: Fitting onto a dirty arch liner can prevent the flap from seating flush and may allow dirt ingress behind the flap over time.
• Mixing up front and rear flaps: Lay them out in pairs before installation and confirm the sizing. Rear flaps are typically slightly different in profile — fitting the wrong flap to the wrong corner will result in poor alignment.
• Not checking symmetry before final tightening: Always step back and visually check each flap before fully torquing — it's much easier to adjust before the bolts are locked down.
• Rushing the rear arches: The rear arch area has less natural clearance. Take your time or use a jack stand to give yourself room to work cleanly.
• Ignoring the installation video: Victorious includes an exclusive installation video with the product — watching it in full before you begin will save time and prevent avoidable errors.

Installation difficulty summary

If you'd prefer professional installation, any Land Rover specialist or car accessories shop will be familiar with this type of work. Call our team on +44 203 943 9919 for installer recommendations in your area.

Care and maintenance

• Wash the mud flaps regularly alongside the rest of the vehicle — a jet wash on a medium setting is ideal for clearing built-up mud.
• Apply a UV-resistant plastic trim dressing or restorer every few months to maintain the gloss black finish and protect against sun fade.
• Inspect the mounting bolts periodically, especially after off-road use, to confirm they remain tight and secure.
• Avoid abrasive cleaners or rough sponges on the gloss surface — a soft mitt and pH-neutral car shampoo are sufficient.
• If the flap sustains a minor impact and flexes, check the mounting points for any stress before continuing use.
• In winter months, clear any ice or compacted grit from behind the flaps to prevent sustained pressure on the mounting points.

Complementary upgrades for the Defender L663

The Gloss Black Mud Flaps pair perfectly with other exterior upgrades from the Victorious Defender L663 collection:

• Matte Black / Gloss Black Extended Wheel Arches – £489.99 — Widen the Defender's stance dramatically and complement the mud flaps for a fully cohesive lower-body look.
• Carbon Fibre LED Roof Light Pod – £850.00 — Take the Defender's exterior further with carbon-finish lighting for serious visual impact.
• Quad Exhaust Tips – £329.99 — Round out the rear end with V8-spec quad exhausts that match the gloss black aesthetic.
• Browse the full Defender L663 collection →

Build a cohesive look across the entire exterior — or start with the mud flaps and add pieces over time. Use code 22GET20 at checkout to save 20% on any two items.

Browse the full Land Rover Defender L663 collection →

Call +44 203 943 9919 Mon–Fri 9am–7pm for personal advice

Victorious Automotive is not affiliated with, endorsed by, or connected to Land Rover or Jaguar Land Rover Limited. All product names and model references are used for identification purposes only.