{"product_id":"hella-355119542-vented-brake-rotor-330mm-6x120","title":"Hella 355119542 Vented Brake Rotor 330mm 6x120","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella 355119542 is a vented, one-piece disc brake rotor built from high-carbon, zinc-coated gray cast iron. It runs a 330mm outside diameter with a 6 x 120mm bolt pattern and a 75mm hub, sold as a single rotor. It's a straight replacement rotor for vehicles that match these dimensions, made to Hella's fit-and-forget standard.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eBrake rotors don't get much attention until they start to. A shudder through the pedal on a hard stop, a lip you can feel with your fingernail, a squeal that wasn't there last month. When it's time, you want a rotor that goes on clean, runs true, and then quietly does its job for years. That's the idea behind the Hella 355119542. It's a vented, one-piece disc brake rotor cast from high-carbon gray iron and finished with a zinc coating to hold off surface rust.\u003c\/p\u003e\n\u003cp\u003eThe core spec that decides whether this rotor fits your vehicle is the geometry. This one measures 330mm across the outside diameter, 20mm nominal thickness across the friction face, and stands 70.80mm tall from the mounting face to the hat. The hub bore is 75mm and the wheel bolt pattern is 6 x 120mm. Those numbers matter more than the name on the box. Match them to what came off your car and you're in business. If any one of them is off, the rotor either won't seat, won't clear the caliper, or won't let the wheel bolt up. So measure before you order.\u003c\/p\u003e\n\u003cp\u003eThe 6 x 120mm bolt pattern shows up on a number of trucks and SUVs. Rather than guess at a model, the safe move is to cross-reference part number 355119542 against your vehicle, or pull your old rotor and put a tape measure on the outside diameter and thickness. Brake geometry is unforgiving. A rotor that's 8mm larger in diameter than the original might look close on paper and still foul the caliper bracket.\u003c\/p\u003e\n\u003cp\u003eWhy vented? A vented rotor has cooling passages cast between the two friction faces, so air moves through the disc as the wheel turns. That pulls heat out of the rotor during repeated or hard braking, which is exactly when a solid rotor starts to fade. On a heavier vehicle, or one that tows or spends time in stop-and-go traffic, vented rotors keep the brakes more consistent. The one-piece design keeps everything simple. There's no separate hat to align, no extra hardware, just a single casting that bolts up the way the factory rotor did.\u003c\/p\u003e\n\u003cp\u003eThe high-carbon iron matters for two reasons. More carbon in the mix helps the rotor shrug off the thermal stress that causes cracking and the kind of warping you feel as pedal pulsation. It also tends to run quieter, since the material damps vibration a little better than a plain gray iron rotor. The zinc coating on the non-friction surfaces, the hat and the edges, keeps rust from blooming on the parts of the rotor you can see through the wheel. It won't stay on the braking surface, and it's not supposed to. The pads scrub that clean on your first few stops.\u003c\/p\u003e\n\u003cp\u003eThis rotor is sold as a single. Brakes work in pairs across an axle, so for a proper job you'll want two matched rotors, left and right, replaced together along with fresh pads. Mixing a new rotor with a worn one on the same axle gives you uneven braking and a car that pulls when you stand on the pedal. Plan on doing the axle as a set.\u003c\/p\u003e\n\u003cp\u003eInstallation is standard fare for anyone who's done a brake job. Pull the wheel, unbolt the caliper and bracket, slide off the old rotor, and clean the hub face so the new rotor sits flat against bare metal. Any rust or debris on that mating surface can introduce runout, which comes back to you as pulsation down the road. Wipe the new rotor's friction faces with brake cleaner to strip the protective film before you reassemble. Torque the caliper bracket to spec, bed the pads in with a series of moderate stops, and you're done.\u003c\/p\u003e\n\u003cp\u003eWho's this for? Anyone replacing worn or warped rotors on a vehicle that matches the 330mm, 20mm, 6 x 120mm spec, and who wants a quality cast replacement rather than the cheapest disc on the shelf. It's a straight replacement part, not a big-brake upgrade, so if you're chasing more braking capacity than stock, this isn't that. For restoring like-new stopping on a daily driver or work truck, though, it's a solid pick. Hella builds to a fit-and-forget standard, and a good rotor is one you install once and forget about.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eVented rotor design pulls heat through cast cooling passages, so braking stays consistent under repeated hard stops.\u003c\/li\u003e\n  \u003cli\u003e330mm outside diameter with 20mm nominal thickness, matched to vehicles that run this rotor size.\u003c\/li\u003e\n  \u003cli\u003e6 x 120mm wheel bolt pattern and 75mm hub bore for a direct bolt-on fit when your specs match.\u003c\/li\u003e\n  \u003cli\u003eHigh-carbon gray cast iron resists heat cracking and warping better than standard gray iron, cutting down on pedal pulsation.\u003c\/li\u003e\n  \u003cli\u003eZinc coating on the hat and edges holds off surface rust where you can see it through the wheel.\u003c\/li\u003e\n  \u003cli\u003eOne-piece casting installs like the factory rotor, with no separate hat or extra hardware to align.\u003c\/li\u003e\n  \u003cli\u003e70.80mm overall height keeps caliper and wheel spacing true to the original geometry.\u003c\/li\u003e\n  \u003cli\u003eSold as a single rotor, so you can match left and right for a full axle service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Hella Marine reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this rotor fit my vehicle?\u003c\/summary\u003e\n    \u003cp\u003eFitment comes down to the numbers. This rotor is 330mm outside diameter, 20mm nominal thickness, 70.80mm overall height, 75mm hub bore, and a 6 x 120mm bolt pattern. Match those to your old rotor or cross-reference Hella part number 355119542 against your vehicle before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this sold as a pair or a single?\u003c\/summary\u003e\n    \u003cp\u003eIt's a single rotor. Brakes work in pairs across an axle, so for a proper job you'll want two, left and right, replaced together with fresh pads.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does vented mean and why does it matter?\u003c\/summary\u003e\n    \u003cp\u003eA vented rotor has cooling passages cast between its two friction faces. Air moves through as the wheel spins and carries heat away, which keeps braking consistent during repeated or hard stops.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the bolt pattern and hub size?\u003c\/summary\u003e\n    \u003cp\u003eThe wheel bolt pattern is 6 x 120mm, meaning six lugs on a 120mm circle. The hub bore is 75mm.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy is it high-carbon iron?\u003c\/summary\u003e\n    \u003cp\u003eThe higher carbon content helps the rotor resist heat cracking and the warping that causes pedal pulsation, and it tends to run a little quieter than plain gray iron.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to clean the rotor before installing?\u003c\/summary\u003e\n    \u003cp\u003eYes. Wipe the friction faces with brake cleaner to remove the protective film, and clean the hub mounting surface so the rotor seats flat against bare metal. Debris there causes runout and pulsation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill the zinc coating affect braking?\u003c\/summary\u003e\n    \u003cp\u003eNo. The coating protects the hat and edges from rust. Your pads scrub it off the braking surface within the first few stops, which is exactly what's supposed to happen.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a performance upgrade?\u003c\/summary\u003e\n    \u003cp\u003eNo. It's a quality direct-replacement rotor built to restore like-new braking, not a big-brake or slotted performance upgrade.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the rotor made of?\u003c\/summary\u003e\n    \u003cp\u003eHigh-carbon gray cast iron with a zinc coating on the non-friction surfaces.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eHella 355119542 Vented One-Piece Disc Brake Rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e355119542\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300692099\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Type\u003c\/th\u003e\n\u003ctd\u003eDisc Brake Rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCarbon Content\u003c\/th\u003e\n\u003ctd\u003eHigh Carbon\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Design\u003c\/th\u003e\n\u003ctd\u003eVented\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eOne Piece Design\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWheel Bolt Pattern\u003c\/th\u003e\n\u003ctd\u003e6 x 120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOutside Diameter\u003c\/th\u003e\n\u003ctd\u003e330 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal Thickness\u003c\/th\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOverall Height\u003c\/th\u003e\n\u003ctd\u003e70.80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Size\u003c\/th\u003e\n\u003ctd\u003e75 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eZinc Coated Gray Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will this rotor fit my vehicle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Fitment comes down to the numbers. This rotor is 330mm outside diameter, 20mm nominal thickness, 70.80mm overall height, 75mm hub bore, and a 6 x 120mm bolt pattern. Match those to your old rotor or cross-reference Hella part number 355119542 against your vehicle before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this sold as a pair or a single?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a single rotor. Brakes work in pairs across an axle, so for a proper job you'll want two, left and right, replaced together with fresh pads.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does vented mean and why does it matter?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"A vented rotor has cooling passages cast between its two friction faces. Air moves through as the wheel spins and carries heat away, which keeps braking consistent during repeated or hard stops.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the bolt pattern and hub size?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The wheel bolt pattern is 6 x 120mm, meaning six lugs on a 120mm circle. The hub bore is 75mm.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why is it high-carbon iron?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The higher carbon content helps the rotor resist heat cracking and the warping that causes pedal pulsation, and it tends to run a little quieter than plain gray iron.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to clean the rotor before installing?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Wipe the friction faces with brake cleaner to remove the protective film, and clean the hub mounting surface so the rotor seats flat against bare metal. Debris there causes runout and pulsation.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will the zinc coating affect braking?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. The coating protects the hat and edges from rust. Your pads scrub it off the braking surface within the first few stops, which is exactly what's supposed to happen.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a performance upgrade?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. It's a quality direct-replacement rotor built to restore like-new braking, not a big-brake or slotted performance upgrade.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the rotor made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"High-carbon gray cast iron with a zinc coating on the non-friction surfaces.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella","offers":[{"title":"Default Title","offer_id":45062071091293,"sku":"2008650","price":65.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_130d6e49-8572-47a9-b171-071508709e8b.jpg?v=1789572524","url":"https:\/\/nvnmarine.com\/products\/hella-355119542-vented-brake-rotor-330mm-6x120","provider":"NVN Marine","version":"1.0","type":"link"}