{"product_id":"skyline-rb-cnc-welch-plugs","title":"RB CNC Welch Plugs \u0026 Plug Kits – Stainless Steel, Sensor Ready","description":"\u003ch1 data-end=\"245\" data-start=\"169\" data-section-id=\"l4ylsj\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"245\" data-start=\"171\"\u003eRB CNC Welch Plugs \u0026amp; Plug Kits  Stainless Steel, Sensor-Ready Design\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp data-end=\"490\" data-start=\"247\"\u003eUpgrade your RB engine with precision-engineered \u003cstrong data-end=\"324\" data-start=\"296\"\u003eCNC machined welch plugs\u003c\/strong\u003e, designed for \u003cstrong data-end=\"401\" data-start=\"339\"\u003eeasy installation, clean sealing, and smart serviceability\u003c\/strong\u003e. Built for engine builders who want reliability, flexibility, and a professional finish.\u003c\/p\u003e\n\u003ch2 data-end=\"522\" data-start=\"497\" data-section-id=\"bu2n0t\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"520\" data-start=\"500\"\u003e\u003cbr\u003eProduct Overview\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"798\" data-start=\"523\"\u003eThese \u003cstrong data-end=\"551\" data-start=\"529\"\u003eRB CNC welch plugs\u003c\/strong\u003e are purpose-built to replace factory core plugs while adding a major advantage, \u003cstrong data-end=\"679\" data-start=\"631\"\u003eeasy removal and optional sensor integration\u003c\/strong\u003e. Designed with both practicality and performance in mind, they eliminate the frustration of traditional pressed plugs.\u003c\/p\u003e\n\u003ch2 data-end=\"824\" data-start=\"805\" data-section-id=\"1j5qwet\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"824\" data-start=\"808\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"916\" data-start=\"825\"\u003e✔ \u003cstrong data-end=\"857\" data-start=\"827\"\u003eCNC Machined for RB Blocks\u003c\/strong\u003e\u003cbr data-end=\"860\" data-start=\"857\"\u003e– Precision fit for RB20, RB25, Neo, RB26, and RB30 blocks.\u003c\/p\u003e\n\u003cp data-end=\"1029\" data-start=\"918\"\u003e✔ \u003cstrong data-end=\"960\" data-start=\"920\"\u003eBlind Thread Design for Easy Removal\u003c\/strong\u003e\u003cbr data-end=\"963\" data-start=\"960\"\u003e– No more drilling or prying out plugs\u003cbr data-end=\"994\" data-start=\"991\"\u003e– Simple extraction when required\u003c\/p\u003e\n\u003cp data-end=\"1168\" data-start=\"1031\"\u003e✔ \u003cstrong data-end=\"1056\" data-start=\"1033\"\u003eDual Thread Options\u003c\/strong\u003e\u003cbr data-end=\"1059\" data-start=\"1056\"\u003e– \u003cstrong data-end=\"1077\" data-start=\"1061\"\u003eSmall plugs:\u003c\/strong\u003e M6 thread (removal only)\u003cbr data-end=\"1105\" data-start=\"1102\"\u003e– \u003cstrong data-end=\"1122\" data-start=\"1107\"\u003eLarge plug:\u003c\/strong\u003e M10x1.0 thread (ideal for pressure sensors)\u003c\/p\u003e\n\u003cp data-end=\"1398\" data-start=\"1170\"\u003e✔ \u003cstrong data-end=\"1214\" data-start=\"1172\"\u003eIntegrated Datum Mark for Sensor Setup\u003c\/strong\u003e\u003cbr data-end=\"1217\" data-start=\"1214\"\u003e– Clearly marked drilling point on rear of plug\u003cbr data-end=\"1267\" data-start=\"1264\"\u003e– Allows accurate machining to expose coolant gallery pressure\u003cbr data-end=\"1328\" data-start=\"1325\"\u003e– Install plug in your preferred location for clean sensor placement\u003c\/p\u003e\n\u003cp data-end=\"1575\" data-start=\"1400\"\u003e✔ \u003cstrong data-end=\"1440\" data-start=\"1402\"\u003eShouldered Design for Easy Fitment\u003c\/strong\u003e\u003cbr data-end=\"1443\" data-start=\"1440\"\u003e– Positive stop for consistent install depth\u003cbr data-end=\"1490\" data-start=\"1487\"\u003e– Flush finish against the block\u003cbr data-end=\"1525\" data-start=\"1522\"\u003e– Ideal for use with retaining\/sealing compounds\u003c\/p\u003e\n\u003cp data-end=\"1693\" data-start=\"1577\"\u003e✔ \u003cstrong data-end=\"1627\" data-start=\"1579\"\u003eCNC Machined from 300 Series Stainless Steel\u003c\/strong\u003e\u003cbr data-end=\"1630\" data-start=\"1627\"\u003e– Corrosion-resistant\u003cbr data-end=\"1654\" data-start=\"1651\"\u003e– High strength and long service life\u003c\/p\u003e\n\u003ch2 data-end=\"1739\" data-start=\"1700\" data-section-id=\"cgq86k\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1739\" data-start=\"1703\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2071\" data-start=\"1740\"\u003e\n\u003cli data-end=\"1794\" data-start=\"1740\" data-section-id=\"7ih2gr\"\u003eEliminates guesswork with built-in datum reference\u003c\/li\u003e\n\u003cli data-end=\"1862\" data-start=\"1795\" data-section-id=\"ypfj8f\"\u003eEnables \u003cstrong data-end=\"1860\" data-start=\"1805\"\u003eclean, professional coolant pressure sensor integration\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1923\" data-start=\"1863\" data-section-id=\"1eyauhu\"\u003ePrevents damage during removal compared to factory plugs\u003c\/li\u003e\n\u003cli data-end=\"1997\" data-start=\"1924\" data-section-id=\"7k1le\"\u003eImproves sealing reliability with shoulder and compound compatibility\u003c\/li\u003e\n\u003cli data-end=\"2071\" data-start=\"1998\" data-section-id=\"1bjhmd7\"\u003eIdeal for performance builds, race engines, and detailed restorations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2106\" data-start=\"2078\" data-section-id=\"1s8k885\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2106\" data-start=\"2081\"\u003eConfiguration Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2264\" data-start=\"2107\"\u003e\n\u003cli data-end=\"2180\" data-start=\"2107\" data-section-id=\"12qv6zh\"\u003e\n\u003cstrong data-end=\"2135\" data-start=\"2109\"\u003eFull RB Welch Plug Kit\u003c\/strong\u003e – Complete set for engine build or refresh\u003c\/li\u003e\n\u003cli data-end=\"2264\" data-start=\"2181\" data-section-id=\"18rhcx5\"\u003e\n\u003cstrong data-end=\"2214\" data-start=\"2183\"\u003eSingle Large Plug (M10x1.0)\u003c\/strong\u003e – Perfect for dedicated pressure sensor install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2293\" data-start=\"2271\" data-section-id=\"1q4u468\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2293\" data-start=\"2274\"\u003eImportant Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2499\" data-start=\"2294\"\u003e\n\u003cli data-end=\"2350\" data-start=\"2294\" data-section-id=\"lhdtcu\"\u003eSmall plug threads are \u003cstrong data-end=\"2348\" data-start=\"2319\"\u003efor removal purposes only\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2416\" data-start=\"2351\" data-section-id=\"1ed0wfi\"\u003eWhen using the sensor feature, drilling\/machining is required\u003c\/li\u003e\n\u003cli data-end=\"2499\" data-start=\"2417\" data-section-id=\"y02m6h\"\u003eEnsure surrounding components are considered before selecting install location\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2524\" data-start=\"2506\" data-section-id=\"rtzfbh\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2524\" data-start=\"2509\"\u003ePerfect For\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"2719\" data-start=\"2525\"\u003e🏁 Engine builders wanting serviceable, high-quality plugs\u003cbr data-end=\"2586\" data-start=\"2583\"\u003e🔧 RB performance builds and race engines\u003cbr data-end=\"2630\" data-start=\"2627\"\u003e📊 Tuners adding oil pressure sensor ports\u003cbr data-end=\"2675\" data-start=\"2672\"\u003e🚗 Clean, professional engine bay finishes\u003c\/p\u003e\n\u003ch3 data-end=\"190\" data-start=\"143\" data-section-id=\"v8ok5h\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"188\" data-start=\"147\"\u003eAdvanced Engine Protection Capability\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-end=\"487\" data-start=\"191\"\u003eIntegrating a \u003cstrong data-end=\"232\" data-start=\"205\"\u003ecoolant pressure sensor\u003c\/strong\u003e into your ECU strategy adds a critical layer of engine protection. By monitoring coolant system pressure in real time, the ECU can detect failures \u003cstrong data-end=\"415\" data-start=\"380\"\u003elong before the driver is aware\u003c\/strong\u003e, including split hoses, leaking head gaskets, or a failing water pump.\u003c\/p\u003e\n\u003cp data-end=\"850\" data-start=\"489\"\u003eA head gasket failure, in particular, can escalate rapidly and lead to \u003cstrong data-end=\"578\" data-start=\"560\"\u003ehydraulic lock\u003c\/strong\u003e, potentially bending a connecting rod and destroying an otherwise healthy engine. With a pressure sensor in place and configured into your ECU’s safety protocols, the system can trigger warnings, cut boost, or shut the engine down \u003cstrong data-end=\"847\" data-start=\"810\"\u003ebefore catastrophic damage occurs\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"1061\" data-start=\"852\"\u003eThe \u003cstrong data-end=\"874\" data-start=\"856\"\u003eM10x1.0 thread\u003c\/strong\u003e used in the large plug is a widely adopted standard, compatible with many \u003cstrong data-end=\"987\" data-start=\"949\"\u003eBosch and similar pressure sensors\u003c\/strong\u003e, making integration simple and effective for modern performance builds.\u003c\/p\u003e\n\u003ch2 data-end=\"2996\" data-start=\"2964\" data-section-id=\"19fikzn\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2996\" data-start=\"2967\"\u003eWhy Builders Choose These\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"3175\" data-start=\"2997\"\u003eBecause they solve real problems, \u003cstrong data-end=\"3093\" data-start=\"3030\"\u003eeasy removal, clean install, and built-in sensor capability\u003c\/strong\u003e, all in a premium stainless, CNC-machined package designed for serious RB engines.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1wl064j\" data-start=\"135\" data-end=\"160\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"138\" data-end=\"160\"\u003eInstallation Guide\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-section-id=\"g87i9e\" data-start=\"162\" data-end=\"217\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"166\" data-end=\"217\"\u003eSensor Preparation (Optional – Large Plug Only)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp data-start=\"218\" data-end=\"270\"\u003eIf installing a plug for use with a pressure sensor:\u003c\/p\u003e\n\u003col data-start=\"272\" data-end=\"628\"\u003e\n\u003cli data-section-id=\"jrd64b\" data-start=\"272\" data-end=\"370\"\u003eUsing a drill bit \u003cstrong data-start=\"293\" data-end=\"312\"\u003elarger than 6mm\u003c\/strong\u003e, drill through the rear of the plug at the datum point.\u003c\/li\u003e\n\u003cli data-section-id=\"1tpi29g\" data-start=\"371\" data-end=\"435\"\u003eTest fit your sensor to ensure a \u003cstrong data-start=\"407\" data-end=\"432\"\u003esnug and accurate fit\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-section-id=\"l862un\" data-start=\"436\" data-end=\"545\"\u003eIf required, open the rear of the plug further using an \u003cstrong data-start=\"495\" data-end=\"518\"\u003e11mm–12mm drill bit\u003c\/strong\u003e (thread-size clearance).\u003c\/li\u003e\n\u003cli data-section-id=\"1urdiz5\" data-start=\"546\" data-end=\"628\"\u003e\n\u003cstrong data-start=\"549\" data-end=\"570\"\u003eDeburr thoroughly\u003c\/strong\u003e and clean the plug to remove all swarf and sharp edges.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-section-id=\"1o71oic\" data-start=\"635\" data-end=\"660\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"639\" data-end=\"660\"\u003ePlug Installation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003col data-start=\"661\" data-end=\"1051\"\u003e\n\u003cli data-section-id=\"14ob1lv\" data-start=\"661\" data-end=\"745\"\u003ePlace the welch plugs in a \u003cstrong data-start=\"691\" data-end=\"720\"\u003efreezer for 20–40 minutes\u003c\/strong\u003e prior to installation.\u003c\/li\u003e\n\u003cli data-section-id=\"aukbvk\" data-start=\"746\" data-end=\"815\"\u003eEnsure the engine block is at \u003cstrong data-start=\"779\" data-end=\"812\"\u003eroom temperature (above 20°C)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-section-id=\"4zwx5i\" data-start=\"816\" data-end=\"918\"\u003eClean the welch plug bores in the block thoroughly, remove all debris, corrosion, paint, and oil residue.\u003c\/li\u003e\n\u003cli data-section-id=\"116lvrf\" data-start=\"919\" data-end=\"1006\"\u003eApply a \u003cstrong data-start=\"930\" data-end=\"960\"\u003eretaining\/sealing compound\u003c\/strong\u003e to the \u003cstrong data-start=\"968\" data-end=\"1003\"\u003einner edge of the plug shoulder\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-section-id=\"mjto0k\" data-start=\"1007\" data-end=\"1051\"\u003eCarefully align the plug with the bore.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-section-id=\"1gdiqmu\" data-start=\"1058\" data-end=\"1080\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1062\" data-end=\"1080\"\u003eFitting Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1081\" data-end=\"1308\"\u003e\n\u003cli data-section-id=\"1ljvkh5\" data-start=\"1081\" data-end=\"1203\"\u003eUse \u003cstrong data-start=\"1087\" data-end=\"1134\"\u003e5–6 layers of masking tape stacked together\u003c\/strong\u003e as a cushioning pad and gently drive the plug into place,\u003cbr data-start=\"1192\" data-end=\"1195\"\u003e\u003cstrong data-start=\"1195\" data-end=\"1201\"\u003eOR\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"stkpct\" data-start=\"1204\" data-end=\"1308\"\u003eInstall a \u003cstrong data-start=\"1216\" data-end=\"1259\"\u003esacrificial bolt into the threaded hole\u003c\/strong\u003e and tap the bolt head to seat the plug evenly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1310\" data-end=\"1388\"\u003eEnsure the plug seats firmly against the shoulder for a \u003cstrong data-start=\"1366\" data-end=\"1387\"\u003eflush, secure fit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ws83tv\" data-start=\"1395\" data-end=\"1418\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1399\" data-end=\"1418\"\u003eImportant Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1419\" data-end=\"1715\"\u003e\n\u003cli data-section-id=\"2a6aeg\" data-start=\"1419\" data-end=\"1509\"\u003eTake care to select plug locations that do not interfere with other engine components.\u003c\/li\u003e\n\u003cli data-section-id=\"ksr5j1\" data-start=\"1510\" data-end=\"1613\"\u003eAlways confirm clearance for sensors, fittings, and surrounding hardware before final installation.\u003c\/li\u003e\n\u003cli data-section-id=\"1xgnk3x\" data-start=\"1614\" data-end=\"1715\"\u003eDo not strike the plug directly with a hammer—always use a buffer or bolt method to avoid damage.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eUpgrade to CNC precision with built-in sensor capability.\u003cbr data-start=\"433\" data-end=\"436\"\u003e⚙️ \u003cstrong data-start=\"439\" data-end=\"488\"\u003eAdd to Cart Now and future-proof your engine.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BoostDoc","offers":[{"title":"Full Kit of plugs","offer_id":46645526331548,"sku":"BD-CNCwelch-KIT","price":278.0,"currency_code":"AUD","in_stock":true},{"title":"Single large plug","offer_id":46645526364316,"sku":"BD-CNCwelch-plug","price":37.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0453\/0923\/1260\/files\/rn-image_picker_lib_temp_b2b80992-4c6a-4599-b794-8a08ff80af0c.png?v=1775610393","url":"https:\/\/boostdoc.com.au\/products\/skyline-rb-cnc-welch-plugs","provider":"BoostDoc","version":"1.0","type":"link"}