🔥 BOSCH SPARK PLUG 0 242 235 663 • NICKEL • M14×1.25 • 19MM • W7DC / BP6ES / N9YC HEAT RANGE

Brand: BOSCH • MPN: 0 242 235 663
Product: Spark plug • Type: Standard nickel centre electrode
Fitment: Wide range of older petrol engines – passenger cars, 4×4, light commercial and classic vehicles
Typical equivalents: BOSCH W7DC • NGK BP6ES / BPR6ES (heat range) • Champion N9YC • Denso W20EP and others
Thread: M14 × 1.25 • Thread length: 19.0 mm (¾" reach) • Spanner size: 20.8 mm
Electrode gap: 0.8 mm (adjustable) • Number of ground electrodes: 1 • Connector: SAE push-on top
Tightening torque: 28 Nm + 90° angle (always check manufacturer data)
Engine type: Petrol (gasoline) – naturally aspirated & light performance applications
Quantity supplied: 1 × spark plug
Recommended quantity: 4 for most 4-cyl • 6 or more for 6-/8-cyl (order extra as needed)
SKU (B&B): A4277
GTIN / EAN: 3165143134085

YOU ARE BUYING: 1 × BOSCH 0 242 235 663 NICKEL SPARK PLUG

• Perfect as a single replacement plug or to top up an existing set.
• For a complete set on most 4-cylinder engines, we also offer a 4-plug kit (see link below).

✅ GENUINE BOSCH SPARK PLUG │ 🔌 M14×1.25 • 19MM NICKEL │ 🚗 CLASSIC & OLDER PETROL ENGINES │ 🧰 W7DC / BP6ES RANGE │ 🚚 FAST UK DISPATCH FROM MAIDSTONE, KENT

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Independent family-run motor factor – classic, service & ignition parts for petrol and diesel vehicles.
📩 Need help matching your plugs?
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Send your reg (UK) or VIN and any existing plug code (e.g. NGK BP6ES, Champion N9YC, Bosch W7DC) and we’ll confirm suitability.
🔄 Other quantities & related parts
• Need a full set of 4 plugs? See our multi-pack listing:
  🔗 BOSCH 0 242 235 663 – set of 4 spark plugs
• Other Bosch spark plugs & glow plugs
• Service kits – filters, sump plugs, gaskets, ignition leads
Search our shops for “Bosch spark plug”, “ignition service kit” or your car model (e.g. “Golf spark plug”).

This listing is for 1 × genuine BOSCH 0 242 235 663 spark plug, a proven nickel plug with M14 × 1.25 thread, 19 mm reach, 20.8 mm hex and a 0.8 mm electrode gap. It crosses to popular references such as BOSCH W7DC, NGK BP6ES / BPR6ES, Champion N9YC and Denso W20EP. Designed for a wide range of classic and older petrol engines from Alfa Romeo, Audi, BMW, Fiat, Ford, Mercedes, Opel / Vauxhall, Peugeot, Renault, Toyota, Volvo, VW and more (see application summary below). Ideal as a single replacement plug or to complete a set.

🧰 KEY FEATURES

Why fit a new spark plug – and why choose BOSCH 0 242 235 663?

  • Old plugs can cause misfires, poor starting, rough idle, flat spots and high fuel consumption
  • Perfect if you have a single failed plug or are replacing plugs one-by-one while diagnosing faults
  • BOSCH is an OE supplier – consistent quality, correct thread and reach, and reliable cold/hot starting
  • Crosses to many older references (e.g. BP6ES, N9YC, W7DC) making it a direct modern replacement
  • Always match the thread, reach, seating type and heat range to your engine – contact us if unsure

Mechanic Tip: Even if only one plug fails, check the full set.

  • If one plug is worn or fouled, the others are often the same age – consider replacing all plugs together
  • Confirm the thread length matches (19 mm here) – incorrect reach can damage valves or reduce performance
  • Set the gap to the manufacturer’s spec (usually around 0.8 mm for these plugs) using a feeler gauge
  • Use a torque wrench and follow the 28 Nm + 90° guideline or vehicle manufacturer data
  • If you’d like a matched set of 4, use our multi-pack listing or message us with your reg/VIN

🧩 TECHNICAL DETAILS

BrandBOSCH
Part number0 242 235 663
GTIN / EAN3165143134085
Product groupSpark plug (nickel)
Thread sizeM 14 × 1.25
Thread length [mm]19.0
Spanner size20.8 mm
Electrode gap [mm]0.8
Spark position [mm]3.0
Number of pins1 ground electrode
ConnectorSAE
Price per1 plug (this listing supplies 1 plug)
Recommended quantity4 for most 4-cyl petrol engines
WeightApprox. 0.06 kg per plug
Inter Cars code396383 (reference only)

📇 KEY CROSS-REFERENCES (SUMMARY)

Popular aftermarket equivalents (examples):
BOSCH: W7DC, W7DCO, WR7DC, W7DTC, 0 241 235 048 / 049 / 078 / 096 / 099 / 103 / 105, 0 242 235 014 / 506 / 508 / 510 / 511 / 529 / 534 / 561 / 590 etc.
NGK: BP6E, BP6ES, BP6EY, BP6EZ, BPR6E, BPR6ES, BPR6EY, V-LINE 2, V-LINE 4 (check catalogues)
Champion: N9Y, N9YC, N9YCC, N9YCX, RN9Y, RN9YC, RN9YCC, RN10Y etc.
Denso: W16EP, W16EP-U, W16EPR, W20EP, W20EP-U, W20EPR, W20EPR-U, W20EX-U etc.
Beru: Z11, Z12, Z20, Z61, Z62, 14-7DU, 14R-7D and related codes.

OEM examples (guide only):
Alfa Romeo / Fiat / Lancia • Audi / VW / Seat / Skoda • BMW • Citroën / Peugeot • Daewoo / Chevrolet • Daihatsu • Ford • Honda • Hyundai / Kia • Isuzu • Mazda • Mercedes-Benz • Mitsubishi • Nissan • Opel / Vauxhall • Porsche • Renault • Saab • Subaru • Suzuki • Toyota • Volvo and more.

All numbers above are for identification only. You are purchasing 1 × genuine BOSCH 0 242 235 663 spark plug.

🚙 VEHICLE COMPATIBILITY (SUMMARY)

This plug type (M14 × 1.25, 19 mm reach, nickel, W7DC/BP6ES heat range) is used across many older petrol engines including:

This is a universal-style older petrol plug and was fitted to many different engines over the years. Always confirm by existing plug code, OE number or a parts catalogue before purchase. If in doubt, send us your registration or VIN and we’ll check for you.

▶ Click to expand more example vehicle families (guide only)

Brand families where this style of plug is commonly used (examples only):
• Alfa Romeo: 33, 75, 90, Alfetta, GTV, older Spider
• Audi: 50, 80, 90, 100, 200, Coupé, Cabriolet, Quattro, early A6
• BMW: 1502–2002, 3-series E21/E30, 5-series E12/E28 and equivalent carburettor or early injection engines
• Fiat: 124/125/126/127/128/131/132, Regata, Ritmo, Uno, Panda, Tempra, Tipo, Ducato, Fiorino, Talento etc.
• Ford: Capri, Escort, Sierra, Granada, Taunus, Transit, Ranger, Scorpio, Econovan
• Mercedes-Benz: Classic /8, S-Class, SL, G-Class and petrol T1/T2 commercials
• Opel / Vauxhall: Kadett, Ascona, Manta, Rekord, Astra, Corsa, Vectra, Tigra, Omega, Combo, Campo
• Peugeot & Citroën: 404, 504, 505, J5/J7/J9, GS, C25 and various carb petrol models
• Renault: 5, 9, 11, 16, 18, 19, 21, Clio, Rapid, Super 5, Espace, Trafic, Master
• Toyota: older 1000, Corolla, Celica, Starlet, Cressida, Crown, Hilux, HiAce, LiteAce, TownAce
• Volvo: 240, 340/360, 440/460/480, 740, 760, 940 and similar petrol engines
• Others: Subaru Justy/Legacy/Leone, Suzuki Alto/Samurai/SJ410/Swift/Vitara, Lada, Wartburg, Trabant, UAZ and more.

This list is only a guide. Many of these vehicles have different engine options and may use different plugs depending on engine code and year. Please check your existing plug code, handbook or a parts catalogue, or contact us with your reg/VIN for a free check.

Not sure if this BOSCH 0 242 235 663 plug is correct for your engine?

Tell us your registration (UK) or full VIN, plus any existing plug code (e.g. NGK BP6ES, Champion N9YC, Bosch W7DC). We’ll confirm whether this BOSCH 0 242 235 663 single plug is right, or advise an alternative or full set.

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🏁 WHY BUY YOUR SPARK PLUGS FROM B & B COMPONENTS?

  • Family-run motor factor with 50+ years’ experience in the trade
  • Genuine brands only – BOSCH, NGK, Denso, Febi, Elring, Mahle and more
  • UK stock in Maidstone, Kent for fast, tracked dispatch
  • We understand classic and older vehicles as well as modern daily drivers
  • We encourage customers to message a reg/VIN so you get the right parts first time
  • When drivers in Maidstone think car parts, they should think B & B Components

Local to Maidstone? Contact us via eBay messages if you’d like to discuss collection by prior arrangement.

B & B Components • Family Run Motor Factor (50+ Years)
Unit 11 Granville Road • Maidstone • Kent • ME14 2BJ
Opening hours: Mon–Fri 07:00–15:00 • Sat 09:00–13:00

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