{"product_id":"beru-blue-12v-ignition-coil-3-5-ohm-oil-filled-00-9403-b","title":"Beru Blue 12V Ignition Coil | Air-Cooled VW \u0026 Vintage European | 3.5 Ohm Oil-Filled (00-9403-B)","description":"\u003ch2\u003e\u003cb\u003eBeru Blue 12-Volt Ignition Coil | 3.5 Ohm, Oil-Filled\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eBeru Blue 12-volt oil-filled ignition coil, \u003cb\u003e3.5 ohm\u003c\/b\u003e primary resistance — the classic-fitment coil for restored 12V air-cooled VWs and other vintage European vehicles on 12-volt electrical systems. EMPI part \u003cb\u003e#00-9403-B\u003c\/b\u003e. A long-standing factory-look upgrade for owners who want a German-brand, period-appearance coil over a generic aftermarket unit.\u003c\/p\u003e\n\u003cp\u003eThe \u003cb\u003e3.5 ohm\u003c\/b\u003e resistance is the correct match for stock VW points ignition (Bosch distributor with internal points and condenser) on a 12-volt system. Oil-filled construction dissipates heat better than epoxy-filled coils — important in hot air-cooled engine bays where the coil mounts to the fan shroud — but requires upright mounting.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e12-Volt Air-Cooled VW:\u003c\/b\u003e Beetle, Karmann Ghia, Type 3, Bus, and Thing with stock points ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConverted VWs:\u003c\/b\u003e Air-cooled VWs converted from 6V to 12V electrical\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVintage European:\u003c\/b\u003e Porsche, BMW, and Mercedes 12V applications using a 3.5 ohm coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWill NOT work for:\u003c\/b\u003e 6-volt systems (use a 6V coil), or electronic ignition specifying a low-resistance coil (typically 0.6–1.5 ohms).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eWhy Choose Beru?\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eBeru is an OE supplier on many vintage German cars, so the Beru Blue delivers a correct 3.5 ohm 12V spec with factory appearance for a restored air-cooled VW.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eKey Features \u0026amp; Benefits\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eCorrect 12V Spec:\u003c\/b\u003e 3.5 ohm primary resistance matched to stock points ignition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOil-Filled Cooling:\u003c\/b\u003e Dissipates heat better than epoxy-filled coils in hot engine bays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePeriod Appearance:\u003c\/b\u003e German-brand Beru Blue body for a factory-look install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Replacement:\u003c\/b\u003e Replaces original Bosch\/Beru 12V coils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eVoltage:\u003c\/b\u003e 12 volts\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrimary Resistance:\u003c\/b\u003e 3.5 ohms\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eConstruction:\u003c\/b\u003e Oil filled (mount upright)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Beru Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e Beru (German manufacturer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Number:\u003c\/b\u003e 00-9403-B\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWill this work with Pertronix or other electronic ignition?\u003c\/b\u003e Check your module's specs. Most Pertronix Ignitor (basic) units work with a stock 1.5–3.5 ohm coil; Ignitor II\/III and most Crane\/MSD systems require a lower-resistance coil. When in doubt, use the coil specified by your ignition manufacturer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCan I mount it sideways or upside down?\u003c\/b\u003e No. Oil-filled coils must be mounted upright (terminal end up) so the oil stays in contact with the internal windings. An angle is acceptable; upside-down is not.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs the Beru Blue better than the Bosch Blue?\u003c\/b\u003e Functionally they're equivalent — both German-made, 3.5 ohm, oil-filled, 12V coils. Either is correct for a restored 12V air-cooled VW.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoes it come with the mounting bracket?\u003c\/b\u003e This listing is the coil only. If you're replacing a similar Bosch or Beru coil, your existing bracket will fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat's the difference between Beru Blue and Beru Silver\/Red?\u003c\/b\u003e Color generally indicates voltage and resistance spec. Beru Blue is the 12V 3.5 ohm coil; other colors have different electrical characteristics — match the color to your application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eComplete your tune-up: \u003ca href=\"\/collections\/ignition\"\u003eIgnition\u003c\/a\u003e, the full \u003ca href=\"\/collections\/all-vw-aircooled\"\u003eAir-Cooled VW\u003c\/a\u003e catalog, and \u003ca href=\"\/collections\/all-porsche\"\u003ePorsche\u003c\/a\u003e parts.\u003c\/p\u003e","brand":"Washburn's Metal","offers":[{"title":"Default Title","offer_id":44699427307635,"sku":null,"price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/00-9403-B-scaled-500x385.jpg?v=1775363147","url":"https:\/\/www.washburnsmetal.com\/products\/beru-blue-12v-ignition-coil-3-5-ohm-oil-filled-00-9403-b","provider":"Washburn's Metal","version":"1.0","type":"link"}