INSTALL GUIDES & VIDEO CONTENT

Each guide walks through the full install process - fitment checks, wiring, and final adjustments. Watch before you order, or use it on the workshop floor.

All-New Defender Fitted with 22" OCTA Style Forged Wheels

Evolution of Precision: Summer Auto Parts Gen-2 OCTA-Style Forged Wheel Series.

Front, Rear, Side Skirt & Fender Flare Fitment

Side step, skirt and arch guidance for clean fitment.

Defender 90 OCTA Rear Bumper Install Guide

Rear bumper install support with wiring and trim checks.

Defender 90 OCTA Front Bumper Install Guide

Front conversion guide covering fitment and final checks.

New Defender 90 OCTA Style Body Kit

This video gives you a complete walkaround of the finished vehicle and shows every component included in the kit.

Real customer builds from Defender owners around the world.

JOIN SUMMER'S DEFENDER COMMUNITY

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DEFENDER L663 FITMENT & INSTALLATION FAQ

WHAT DOES L663 MEAN, AND WHICH DEFENDER MODELS DOES IT COVER?

HOW DO I CONFIRM WHETHER A PART FITS MY DEFENDER?

WILL 2020–2025 PARTS ALSO FIT A 2026 DEFENDER?

ARE SUMMER AUTO PARTS PRODUCTS GENUINE LAND ROVER PARTS?

DO LIGHTING UPGRADES REQUIRE CODING OR CALIBRATION?

DO WHEEL ARCHES OR EXTERIOR KITS REQUIRE DRILLING OR CUTTING?

CAN I INSTALL THE PARTS MYSELF?

HOW ARE LARGE ITEMS SHIPPED, AND ARE DUTIES INCLUDED?