{"product_id":"hella-355111282-vented-disc-brake-rotor-300mm","title":"Hella 355111282 Vented Disc Brake Rotor, 300mm","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella 355111282 is a 300 millimeter vented disc brake rotor with a 6 x 120 millimeter bolt pattern, cast from zinc-coated gray cast iron in a one-piece design. The internal vanes pump air through the rotor to shed braking heat and fight fade. It ships as a single rotor, so order a pair for a complete axle.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eHella's 355111282 is a vented, one-piece disc brake rotor built to the standard the Hella name carries across braking hardware. It measures 300 millimeters across the outside diameter, runs a 19.90 millimeter nominal thickness, and stands 66.10 millimeters tall at the hat. The wheel bolt pattern is 6 x 120 millimeter. It's cast from gray cast iron and finished with a zinc coating to hold off surface rust. This one ships as a single rotor.\u003c\/p\u003e\n\u003cp\u003eThe vented design is the part that matters most when you're actually leaning on the brakes. Internal vanes run between the two friction faces and pump air through the rotor as the wheel spins. That airflow carries heat away from the pad contact area, which is exactly what you want on repeated stops, long downhill grades, or any time the brakes stay busy. Heat is what fades a braking system, and a vented rotor sheds it far better than a solid disc of the same size.\u003c\/p\u003e\n\u003cp\u003eOne-piece construction means the hat and the friction ring are a single casting. There's nothing bolted together to loosen or introduce runout over time. Gray cast iron is the material of choice here for good reason. It has the heat capacity to soak up braking energy and the damping character that keeps noise and vibration down. It machines cleanly too, so the surface finish that meets your pads is consistent right out of the box.\u003c\/p\u003e\n\u003cp\u003eThe zinc coating covers the areas that don't see pad contact, the hat, the edges, and the vane openings. Those are the spots that turn orange with rust the first week a bare rotor sits on a car, and while surface rust on a hat is mostly cosmetic, a coated rotor looks right and stays cleaner behind an open wheel. The friction faces wear the coating off in the first few stops, which is normal and expected.\u003c\/p\u003e\n\u003cp\u003eFitment comes down to the numbers. The 6 x 120 millimeter bolt pattern, the 300 millimeter diameter, and the 19.90 millimeter thickness all have to match what your vehicle came with. The cleanest way to confirm this rotor is right for your application is to match the Hella part number, 355111282, against your vehicle's brake specifications before you order. If the numbers line up, it's a direct-fit replacement.\u003c\/p\u003e\n\u003cp\u003eA few notes from years of doing brake jobs. Replace rotors in pairs across an axle so both sides wear and bite evenly, even if only one looks worn. This rotor is sold individually, so order two for a complete axle. The 19.90 millimeter figure is the nominal new thickness, and the minimum discard thickness is cast into the rotor itself, so you always have the wear limit in front of you. Fresh pads are a smart move any time you fit new rotors, and bedding them in with a series of moderate stops before you push hard gives you a clean, quiet transfer layer and full braking feel from day one.\u003c\/p\u003e\n\u003cp\u003eHow do you know it's time for new rotors? Pulsing through the pedal or a shimmy in the wheel under braking usually means a rotor is warped or worn unevenly. Deep scoring you can catch a fingernail on, a lip built up at the outer edge, or thickness that's dropped to the discard limit all say the same thing. Replace it. A worn rotor never gets better, and it drags down the performance of even a fresh set of pads.\u003c\/p\u003e\n\u003cp\u003eHella has been building lighting and braking components for the aftermarket and original-equipment market for a long time, and the reputation is earned on parts that go in and just work. There's no exotic material story here and no gimmick. It's a properly cast, correctly dimensioned, corrosion-protected rotor at a fair price. For a lot of owners doing their own brake work in the driveway, that's the whole ask. A part that meets spec, fits the first time, and lasts.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eVented one-piece design with internal cooling vanes that pull heat away from the pad contact area to resist brake fade on repeated or high-load stops\u003c\/li\u003e\n  \u003cli\u003e300 mm outside diameter matched to the vehicle's original rotor size for correct pad sweep and caliper clearance\u003c\/li\u003e\n  \u003cli\u003e6 x 120 mm wheel bolt pattern for a direct bolt-on fit when it matches your vehicle's hub\u003c\/li\u003e\n  \u003cli\u003e19.90 mm nominal thickness with the minimum discard thickness cast into the rotor so the wear limit is always visible\u003c\/li\u003e\n  \u003cli\u003e66.10 mm overall height at the hat\u003c\/li\u003e\n  \u003cli\u003eGray cast iron construction for high heat capacity and quiet, well-damped braking\u003c\/li\u003e\n  \u003cli\u003eZinc coating on the non-friction surfaces to hold off surface rust behind an open wheel\u003c\/li\u003e\n  \u003cli\u003eSold individually so you can order the exact count you need, two for a full axle\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\u003eWhat are the dimensions of the Hella 355111282 rotor?\u003c\/summary\u003e\n    \u003cp\u003eIt's 300 millimeters in outside diameter with a 19.90 millimeter nominal thickness and an overall height of 66.10 millimeters at the hat.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a vented or solid rotor?\u003c\/summary\u003e\n    \u003cp\u003eIt's a vented rotor. Internal vanes between the two friction faces pump air through the disc to shed braking heat and resist fade.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the wheel bolt pattern?\u003c\/summary\u003e\n    \u003cp\u003eThe bolt pattern is 6 x 120 millimeter. It has to match your vehicle's hub for the rotor to bolt on correctly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this sold as a pair or a single rotor?\u003c\/summary\u003e\n    \u003cp\u003eIt's sold individually as a single rotor. For a complete axle, order two so both sides wear and brake evenly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know this rotor fits my vehicle?\u003c\/summary\u003e\n    \u003cp\u003eMatch the Hella part number 355111282 and the dimensions, 300 mm diameter, 6 x 120 mm bolt pattern, and 19.90 mm thickness, against your vehicle's brake specifications before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the zinc coating for?\u003c\/summary\u003e\n    \u003cp\u003eThe zinc coating protects the non-friction areas like the hat and edges from surface rust. The pad contact faces wear the coating off in the first few stops, which is normal.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the rotor made of?\u003c\/summary\u003e\n    \u003cp\u003eGray cast iron. It has the heat capacity to absorb braking energy and the damping character to keep braking quiet and smooth.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo brake pads come with this rotor?\u003c\/summary\u003e\n    \u003cp\u003eNo, this is the rotor only. Fitting fresh pads whenever you install new rotors is a good idea for the best bite and a clean bed-in.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the 19.90 mm thickness the minimum I can use?\u003c\/summary\u003e\n    \u003cp\u003eNo, 19.90 millimeters is the nominal new thickness. The minimum discard thickness is cast into the rotor itself, so you can always see the wear limit.\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 355111282 Vented Disc Brake Rotor, 300mm 6x120\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e355111282\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300573664\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eDisc Brake Rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Type\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\u003e300 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal Thickness\u003c\/th\u003e\n\u003ctd\u003e19.90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOverall Height\u003c\/th\u003e\n\u003ctd\u003e66.10 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\u003eSold As\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\": \"What are the dimensions of the Hella 355111282 rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's 300 millimeters in outside diameter with a 19.90 millimeter nominal thickness and an overall height of 66.10 millimeters at the hat.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a vented or solid rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a vented rotor. Internal vanes between the two friction faces pump air through the disc to shed braking heat and resist fade.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the wheel bolt pattern?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The bolt pattern is 6 x 120 millimeter. It has to match your vehicle's hub for the rotor to bolt on correctly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this sold as a pair or a single rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sold individually as a single rotor. For a complete axle, order two so both sides wear and brake evenly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know this rotor fits my vehicle?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Match the Hella part number 355111282 and the dimensions, 300 mm diameter, 6 x 120 mm bolt pattern, and 19.90 mm thickness, against your vehicle's brake specifications before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the zinc coating for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The zinc coating protects the non-friction areas like the hat and edges from surface rust. The pad contact faces wear the coating off in the first few stops, which is normal.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the rotor made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Gray cast iron. It has the heat capacity to absorb braking energy and the damping character to keep braking quiet and smooth.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do brake pads come with this rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No, this is the rotor only. Fitting fresh pads whenever you install new rotors is a good idea for the best bite and a clean bed-in.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the 19.90 mm thickness the minimum I can use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No, 19.90 millimeters is the nominal new thickness. The minimum discard thickness is cast into the rotor itself, so you can always see the wear limit.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella Marine","offers":[{"title":"Default Title","offer_id":45066486218845,"sku":"2008885","price":65.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_93e726a0-6c36-43ef-a8cd-830033f7b9a9.jpg?v=1789644109","url":"https:\/\/nvnmarine.com\/products\/hella-355111282-vented-disc-brake-rotor-300mm","provider":"NVN Marine","version":"1.0","type":"link"}