The Beru Ultra Spark Plug 14R-7DU (also known by the manufacturer part numbers Z20 and 0002335701) is a highly versatile, copper-core spark plug with a 0.8mm gap used primarily in older, carbureted or early fuel-injected European, American, and Asian vehicles from the 1970s, 1980s, and 1990s. Because this exact part cross-references directly to iconic industry-standard plugs like the NGK BPR6ES and Bosch WR7DC, it fits an enormous lineup of classic automotive engines.
Major Vehicle Models by BrandBMW: 1970s and 1980s classic platforms including the E21 and E30 3-Series (e.g., 316, 318i) and early E12 or E28 5-Series utilizing M10 and M30 engines.Volkswagen & Audi: Legendary water-cooled engines from the late 70s to early 90s, including the VW Golf MK1 / MK2 (1.6L and 1.8L), Jetta, Passat, Scirocco, and the Audi 80/100.Mercedes-Benz: Vintage inline-4 and inline-6 engines from the W123, W124, and 190E (W201) series, specifically matching older M102 engine architectures.Opel / Vauxhall: Classic 1980s models like the Astra, Kadett, Ascona, Corsa, and Vectra equipped with 1.3L, 1.6L, and 1.8L OHC engines.Volvo: Early Volvo 240, 740, and 940 models running the famously durable B200 and B230 series redblock petrol engines.Nissan: Frequently used in vehicles running the Z20, Z22, or Z24 engine blocks such as the Nissan Navara (D21), Cabstar, and the 720 pickup.Ford: Select older European and classic Latin American Ford variants, such as the Ford Fairmont (3.8L) and certain early microbuses/trucks.Fiat & Alfa Romeo: Classic Italian engines from the 1980s including the Fiat Uno, Panda, and Regata, alongside non-Twin Spark Alfa Romeo variants.
Cross-Reference GuideIf you are struggling to find the exact Beru Z20 packaging, you can safely substitute it with these equivalent copper-core models from other major manufacturers:NGK: BPR6ES (Stock No. 7822)Bosch: WR7DC+ / WR7DCChampion: RN9YC / RN9YCCDenso: W20EPR-U

Set of four Beru Ultra spark plugs, model 14R-7DU / Z 20. These feature a copper core (Kupferkern) and a 0.8 mm gap. Part number 0 002 335 701. The spark plugs are housed in their original individual boxes. Made in France.