Description
The Denso Flat DF-421 comes as a frameless construction set of wipers with 630 & 500 mm blades.
DF421 – an all-weather set of wipers built to handle heavy rain, sleet, snow, and high temperatures with consistent, long-lasting performance.
This Denso (Japan) DF421 set of wiper blades integrates an asymmetric spoiler, built to provide superior visibility in challenging environments.
An asymmetric spoiler is strategically positioned to channel airflow into targeted downforce while minimizing drag, applying extra pressure to the wind-facing edge so the blade hugs the glass during fast-paced drives. The result is reduced lift and chatter even in demanding high-speed scenarios.
Perfect for performance-driven drivers, it boosts wipe efficiency for a smoother drive.
Frameless wiper blade offers a modern tensioned beam, calibrated for even line pressure across complex windshield curves. A pre-curved spring-steel beam pairs with a advanced synthetic-rubber edge, producing a silent, streak-free sweep. Its wind-cheating contour reduces drag, while smart-fit mounting heads suits 95% of vehicles for rapid installation. The frameless build shrugs off snow and ice, eliminates corrosion points, and hugs modern glass shapes for superior visibility. Drawbacks: higher upfront cost, refill inserts are non-serviceable, plastic adapters may embrittle in severe cold, and clamping force declines slightly on very flat windshields. Rinse with pH-neutral soap every three months and replace every 12–24 months (6–12 months in extreme climates). Go beam, drive clear – shop today.
The DENSO Flat wiper blade series is the top-tier line from DENSO, the renowned Japanese engineering group. Designed with a streamlined traceless profile and dual high-precision rotary blade-cutting technology, these wipers deliver clear performance and ultra-quiet operation in rain, snow, and ice. They feature a quick-release fixation system compatible with push-button arms for DIY-friendly installation and are offered in lengths from 350 mm to 700 mm to fit a varied range of vehicles. Chosen as OEM parts by BMW for the Serie 1 and Serie 2 models, the DENSO Flat wiper blade series establishes excellence for resilience and multi-weather reliability.
