{"product_id":"ngk-spark-plug-silkr7h8","title":"NGK Spark Plug for Mercedes-Benz \u0026 Mitsubishi - SILKR7H8","description":"\u003cdiv class=\"product-description\" data-mapza-body=\"v1\"\u003e\n\u003ch2\u003eVehicle Fitment \u0026amp; Part Details\u003c\/h2\u003e\n\u003cp\u003eThis NGK spark plug (SILKR7H8) is supplied as an OEM-grade replacement. Heat range 7. Thread M12 x 1,25. Verify VIN\/engine before ordering.\u003c\/p\u003e\n\u003ch3\u003eKey Details\u003c\/h3\u003e\n\u003cdl data-mapza-keydetails=\"v1\" style=\"display:grid; grid-template-columns: 140px 1fr; gap: 6px 12px; margin:0;\"\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eSKU\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eSILKR7H8\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eComponent\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eSpark Plug\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eBrand\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eNGK\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eHeat Range\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e7\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003ePart MPN\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e92154\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eGTIN \/ Barcode\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e0087295921548\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eTrade Numbers\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eSILKR7H8\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cdl style=\"display:grid; grid-template-columns: 220px 1fr; gap: 6px 12px; margin:0;\"\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eThread Size\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eM12 x 1,25\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eThread Length [mm]\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e26,5\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eSpanner Size\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e16 mm\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eElectrode Gap [mm]\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e0,8\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eSpark Position [mm]\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003e4,0\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eElectrode \/ Construction\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003eInterference Suppression 5 kOhm, with gasket seat, Iridium Middle Electrode, 1 - Earthed Electrode, Fixed SAE connector\u003c\/dd\u003e\n\u003cdt style=\"font-weight:600; margin:0;\"\u003eBrand Class\u003c\/dt\u003e\n\u003cdd style=\"margin:0;\"\u003ePremium\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003eCommon fitments include Mercedes-Benz (C-CLASS, CLS, E-CLASS); Mitsubishi (ECLIPSE). Always confirm the correct heat range and electrode design for your specific engine variant by VIN before ordering.\u003c\/p\u003e\n\u003ch3\u003eOEM Reference Numbers\u003c\/h3\u003e\n\u003ch4 style=\"margin:12px 0 6px 0;\"\u003eVehicle OE Numbers\u003c\/h4\u003e\n\u003cul data-mapza-oem=\"v1\" style=\"margin:0; padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAMG:\u003c\/strong\u003e A 004 159 25 63, 004 159 25 03, 004 159 25 63, A 004 159 25 03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMercedes-Benz:\u003c\/strong\u003e 004 159 25 63, A 004 159 25 63, A0041592503, 004 159 25 03\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMitsubishi:\u003c\/strong\u003e 1822A104\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart:\u003c\/strong\u003e A 004 159 25 03, A 004 159 25 63, 004 159 25 03, 004 159 25 63\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"margin:14px 0 6px 0;\"\u003eAftermarket Equivalents\u003c\/h4\u003e\n\u003cdiv style=\"background-color:#f0f4f8; border-left:6px solid #1a1a2e; padding:15px; margin:14px 0; border-radius:6px;\"\u003e\n\u003ch4 style=\"font-size:16px; margin:0 0 10px 0; color:#1a1a2e;\"\u003eAftermarket Equivalents (Bosch)\u003c\/h4\u003e\n\u003cul data-mapza-oem=\"v1\" style=\"margin:0; padding-left:18px;\"\u003e\n\u003cli\u003e0 242 140 521, ZR 6 SII 3320\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color:#f8f9fa; padding:10px 14px; margin:8px 0 14px 0; border-radius:4px; font-size:13px; color:#444;\"\u003e\n\u003cstrong\u003eAlternate OEM Search References:\u003c\/strong\u003e A0041592563, 0041592503, 0041592563, 0242140521, ZR6SII3320\u003c\/div\u003e\n\u003ch3\u003eFitment Notes\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eAlways match heat range, thread size and electrode design before ordering. Verify VIN\/engine.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cdiv data-nosnippet data-mapza-warning=\"v1\"\u003e\n  \u003cdiv style=\"background-color:#fff3cd; border-left:6px solid #ffb300; padding:15px; margin:14px 0; border-radius:6px;\"\u003e\n    \u003cp style=\"margin:0 0 10px 0; color:#5c4802;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Spark plugs are not returnable, exchangeable, or refundable once fitted. Confirm you are ordering the correct part for your vehicle. Compare the new spark plug to the removed plug for thread reach, thread diameter, hex size, electrode style, gap specification, and heat range before fitting. Mismatched spark plugs can cause misfires, pre-ignition, detonation, fouling, or engine damage.\u003c\/p\u003e\n    \u003cp style=\"margin:0; color:#5c4802;\"\u003e\u003cstrong\u003eReturns Notice:\u003c\/strong\u003e Once a spark plug has been fitted or threaded into a cylinder head, it cannot be returned, exchanged, or refunded under any circumstances.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eInstallation \/ Use \/ Maintenance Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAllow the engine to cool fully before removal - cylinder heads are easily damaged when warm.\u003c\/li\u003e\n\u003cli\u003eUse the correct deep-socket plug spanner (16 mm) and avoid impact tools.\u003c\/li\u003e\n\u003cli\u003eInspect the existing plug for fouling, oil contamination, or worn electrodes - may indicate engine condition issues.\u003c\/li\u003e\n\u003cli\u003eVerify the gap if your supplied plug is not factory-set; consult your service manual for the correct value.\u003c\/li\u003e\n\u003cli\u003eApply a small amount of anti-seize to the threads (sparingly) and torque to manufacturer specification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWill this NGK spark plug fit my Mercedes-Benz?\u003c\/strong\u003e\u003cbr\u003eThis part (SILKR7H8) is listed for the applications shown on this page. Always confirm the correct heat range, thread size and electrode design against your vehicle's service manual or a parts lookup before ordering. Verify VIN\/engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the NGK part code mean?\u003c\/strong\u003e\u003cbr\u003eThe NGK trade number encodes physical and performance characteristics - thread\/reach, electrode design, heat rating, and projection. Each digit and letter has meaning in NGK's naming convention. The heat range is usually the standalone digit (e.g. BPR\u003cstrong\u003e6\u003c\/strong\u003eES is heat range 6).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between this NGK plug and a Bosch \/ Champion \/ Denso equivalent?\u003c\/strong\u003e\u003cbr\u003eThe cross-references listed under OEM Reference Numbers are functionally equivalent for the same applications, but materials, electrode design and heat dissipation can differ slightly. NGK is OEM-supply quality and most manufacturers specify NGK or Denso as their factory plug.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I confirm fitment if my engine variant isn't listed?\u003c\/strong\u003e\u003cbr\u003eMatch the supplied thread size, reach, electrode design and heat range against your existing plug. If unsure, request fitment assistance before ordering.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":52037727617255,"sku":"SILKR7H8","price":640.13,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/5943\/3703\/files\/E0574E27647C733C8AE991BEF8D3E79031AA663D1EA6DD814EC5C278C2C3D4E3.jpg?v=1777927515","url":"https:\/\/modernautoparts.co.za\/af\/products\/ngk-spark-plug-silkr7h8","provider":"Modern Auto Parts ","version":"1.0","type":"link"}