{"product_id":"bosch-ignition-wire-set-vw-type-1-beetle-ghia-type-2-bus-98-9986-b","title":"Bosch Ignition Wire Set — VW Type 1 Beetle, Karmann Ghia, Type 2 Bus (Type 1 Engine) | 98-9986-B","description":"\u003cp\u003eBosch ignition wire set for air-cooled VW Type 1 and Type 2 engines — Beetle, Karmann Ghia, and Bus through 1971 (Type 1 engine only). The OE-spec replacement for original Bosch spark plug wires that have hardened, cracked, or developed insulation breakdown after decades in a hot engine bay. Part #98-9986-B.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Bosch wires matter on a classic VW\u003c\/h3\u003e\n\u003cp\u003eBosch supplied the original ignition wires on virtually every air-cooled VW from the factory. Aftermarket wire sets exist at lower price points, but they typically use thinner insulation, lower-quality terminal crimps, and resistive cores that don't always match the distributor and coil setup the way the original Bosch wires did.\u003c\/p\u003e\n\n\u003cp\u003eFor a restored or original-spec VW, Bosch wires are the correct choice — they look factory, fit factory routing clips, and last decades when properly installed.\u003c\/p\u003e\n\n\u003cp\u003eOld wires are one of the most overlooked sources of running problems on air-cooled VWs. Symptoms of failing wires include misfire under load, rough idle, hard starting in damp weather, and visible arcing or \"crossfire\" between adjacent wires at night. If your wires are original or unknown age, replacement is cheap insurance.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Bosch (German OE supplier)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Type 1 air-cooled VW engine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold as:\u003c\/strong\u003e Complete set (4 plug wires + coil wire)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 98-9986-B\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVW Beetle: 1949–1979 (all Type 1 engines)\u003c\/li\u003e\n\u003cli\u003eVW Karmann Ghia: 1956–1974\u003c\/li\u003e\n\u003cli\u003eVW Bus \/ Transporter: 1950–1971 (Type 1 engine only)\u003c\/li\u003e\n\u003cli\u003eVW Thing (Type 181): 1973–1974\u003c\/li\u003e\n\u003cli\u003eDune buggies, sand rails, and kit cars running Type 1 engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWill NOT fit:\u003c\/strong\u003e Type 4 engines (1972+ Bus, 411, 412, Porsche 914) — these use a different distributor cap, plug location, and wire length set. Also will not fit Type 3 with the unusual flat-fan engine layout if your Type 3 uses the alternate-routing style; verify your engine before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this a complete set or just one wire?\u003c\/strong\u003e\u003cbr\u003e\nComplete set. Four spark plug wires plus the coil-to-distributor wire — everything from coil to plug.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill these work with my Pertronix or other electronic ignition?\u003c\/strong\u003e\u003cbr\u003e\nYes. Stock Bosch wires work fine with Pertronix Ignitor and similar electronic ignition modules. Some high-output ignition systems (MSD, Crane high-energy) work better with low-resistance wires; in that case, follow the ignition manufacturer's wire recommendations.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these copper core or resistive?\u003c\/strong\u003e\u003cbr\u003e\nStandard OE-spec resistive core, matching the original Bosch wires. Resistive cores suppress radio noise and are correct for stock VW ignition.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat plug wire length goes where?\u003c\/strong\u003e\u003cbr\u003e\nThe wires are pre-cut to factory lengths for the Type 1 engine bay. Cylinder #1 (rear right facing forward) takes the shortest wire; cylinder #3 (front left) typically takes the longest. The set includes the right mix of lengths.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDo they come with new spark plug boots?\u003c\/strong\u003e\u003cbr\u003e\nYes — molded boots at both ends, plus the proper terminal ends. No assembly required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWill they fit my dual-carb or performance engine?\u003c\/strong\u003e\u003cbr\u003e\nIf your engine still uses the standard Bosch distributor cap and stock plug location, yes. If you've converted to a different distributor or relocated the plugs, measure your existing wires before ordering.\u003c\/p\u003e","brand":"Washburn's Metal","offers":[{"title":"Default Title","offer_id":44699437334643,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/98-9986-B-500x367.jpg?v=1775364042","url":"https:\/\/shop.washburnsmetal.com\/products\/bosch-ignition-wire-set-vw-type-1-beetle-ghia-type-2-bus-98-9986-b","provider":"Washburn's Metal","version":"1.0","type":"link"}