{"product_id":"hella-355123162-vented-disc-brake-rotor-7x130mm","title":"Hella 355123162 Vented Disc Brake Rotor, 7x130mm","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella 355123162 is a vented, one-piece disc brake rotor cast from zinc-coated gray cast iron. It's built for cooler running and quiet, consistent braking, with a 28mm friction thickness, an 85mm hub bore, and a 7 x 130mm wheel bolt pattern. Sold as a single rotor, so order in pairs to do a full axle.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Hella 355123162 is a vented disc brake rotor cast from zinc-coated gray cast iron, sold as a single rotor. If you're replacing worn discs and want a straight, quiet, corrosion-resistant rotor that goes on without drama, this is a solid pick. It's a one-piece casting, so there's no bolted hat to loosen or corrode over the life of the part. What you install is what you get.\u003c\/p\u003e\n\u003cp\u003eLet's talk about the vented design first, because it matters more than most people think. A vented rotor has cooling channels cast between its two friction faces. Those channels pull air through the disc as the wheel turns, and that airflow carries heat away from the braking surface. Heat is what kills brakes. Fade, glazing, warping, cooked pads, it all traces back to a rotor that can't shed heat fast enough. The vented casting here gives you real thermal headroom for repeated stops, long grades, and heavier loads.\u003c\/p\u003e\n\u003cp\u003eThe friction material is gray cast iron, which is still the standard for good reason. It bites consistently, it machines cleanly, and it damps vibration well so you get quiet, predictable braking. The zinc coating is the part worth calling out. Bare cast iron starts flash-rusting almost the moment it meets moisture, and that surface rust is what leaves ugly orange rings on a car parked for a week. The zinc coating protects the non-friction surfaces, the vanes, the hat, and the edges, so the rotor stays clean behind an open wheel and resists corrosion where road salt and spray collect.\u003c\/p\u003e\n\u003cp\u003eHere are the numbers that decide fitment. The disc measures 28 millimeters thick across the friction faces and stands 68.40 millimeters tall overall. The hub size, or center bore, is 85 millimeters, and the inside diameter is also 85 millimeters. The wheel bolt pattern is 7 x 130 millimeters. Those figures need to match your hub and your wheel exactly, so measure your old rotor or check it against your vehicle's brake specs before you order. A rotor that's off by a millimeter on thickness or bore won't seat right, and it'll tell you with vibration or a soft pedal.\u003c\/p\u003e\n\u003cp\u003eThis rotor is sold individually. Brakes work as an axle set, so you should always replace rotors in pairs, left and right on the same axle, so both sides wear and heat evenly. Order two if you're doing a full axle. And whenever you fit fresh rotors, put fresh pads on with them. New pads mate to a new rotor surface during the bed-in process, and reusing old glazed pads on a new disc is the fastest way to end up with noise and uneven wear.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable pulling a caliper. Clean the hub face down to bare metal so the rotor sits dead flat, because rust or grit trapped behind a rotor is a leading cause of runout and steering-wheel shimmy. The zinc coating on the friction faces wears off in the first few stops, so there's no need to scrub it, but a quick wipe with brake cleaner to lift any packing oil never hurts. Torque the caliper bracket to your vehicle's spec, then bed the pads in with a series of moderate stops from speed to lay down an even transfer layer.\u003c\/p\u003e\n\u003cp\u003eWho's it for? Anyone doing a straightforward brake refresh who wants a quality replacement rotor at a fair price. It's a direct fit for applications that use the 7 x 130 millimeter pattern and the 85 millimeter bore, and the vented, zinc-coated construction runs cooler and looks better than a bare bargain disc. Confirm the specs against your vehicle, order in pairs, pair it with fresh pads, and you'll have a smooth, quiet brake job that 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 rotor design channels air between the friction faces to shed heat and resist brake fade on repeated stops\u003c\/li\u003e\n  \u003cli\u003eOne-piece cast construction means no bolted hat to loosen or corrode over the life of the rotor\u003c\/li\u003e\n  \u003cli\u003eZinc-coated finish protects the vanes, hat, and edges from surface rust and keeps the rotor clean behind open wheels\u003c\/li\u003e\n  \u003cli\u003eGray cast iron friction surface bites consistently and damps vibration for quiet, predictable braking\u003c\/li\u003e\n  \u003cli\u003e28 mm disc thickness provides usable friction material and thermal mass for everyday driving\u003c\/li\u003e\n  \u003cli\u003e68.40 mm overall height with an 85 mm hub bore for a precise, flat seat on the matching hub\u003c\/li\u003e\n  \u003cli\u003e7 x 130 mm wheel bolt pattern and 85 mm inside diameter, confirm against your vehicle before ordering\u003c\/li\u003e\n  \u003cli\u003eSold as a single rotor so you can order the exact count your job needs, replace in pairs per axle\u003c\/li\u003e\n  \u003cli\u003eManufacturer part number 355123162 for straightforward cataloging and reorder\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\u003eIs this rotor sold as a single or a pair?\u003c\/summary\u003e\n    \u003cp\u003eIt's sold as a single rotor. Brakes work as an axle set, so order two if you're replacing both sides of the same axle, which is what we recommend for even braking.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs the Hella 355123162 a vented rotor?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's a vented one-piece design with cooling channels cast between the two friction faces, which pulls air through the disc to carry heat away during repeated stops.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the wheel bolt pattern?\u003c\/summary\u003e\n    \u003cp\u003eThe wheel bolt pattern is 7 x 130 millimeters. Check that against your vehicle's hub and wheel specs before ordering to be sure it's a match.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the key dimensions?\u003c\/summary\u003e\n    \u003cp\u003eThe disc is 28 millimeters thick, 68.40 millimeters tall overall, with an 85 millimeter hub size and an 85 millimeter inside diameter. Measure your old rotor to confirm the fit.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the rotor made of?\u003c\/summary\u003e\n    \u003cp\u003eIt's cast from gray cast iron with a zinc coating. The cast iron gives consistent, quiet braking and the zinc coating resists surface rust on the non-friction surfaces.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to remove the zinc coating before installing?\u003c\/summary\u003e\n    \u003cp\u003eNo. The coating on the friction faces wears off during the first several stops. A quick wipe with brake cleaner to lift any packing oil is all you need.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould I replace the brake pads at the same time?\u003c\/summary\u003e\n    \u003cp\u003eYes. Fresh pads mate to a new rotor surface during bed-in. Reusing old glazed pads on a new rotor leads to noise and uneven wear.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does one-piece design mean?\u003c\/summary\u003e\n    \u003cp\u003eThe hat and the friction ring are cast as a single unit rather than bolted together. There's nothing to loosen or corrode at a joint, and installation is simpler.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I bed in the new rotor?\u003c\/summary\u003e\n    \u003cp\u003eAfter torqueing the caliper to your vehicle's spec, do a series of moderate stops from speed to lay down an even layer of pad material on the disc. Avoid hard stops until the pads are seated.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eMy new rotor is causing vibration, what went wrong?\u003c\/summary\u003e\n    \u003cp\u003eAlmost always it's debris or rust left on the hub face behind the rotor. Clean the hub down to bare metal so the rotor sits perfectly flat, and the vibration usually disappears.\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 355123162 Vented 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\u003e355123162\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300574678\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\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWheel Bolt Pattern\u003c\/th\u003e\n\u003ctd\u003e7 x 130 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOverall Height\u003c\/th\u003e\n\u003ctd\u003e68.40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDisc Thickness\u003c\/th\u003e\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eInside Diameter\u003c\/th\u003e\n\u003ctd\u003e85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Size\u003c\/th\u003e\n\u003ctd\u003e85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eGray Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eZinc Coated\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\": \"Is this rotor sold as a single or a pair?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's sold as a single rotor. Brakes work as an axle set, so order two if you're replacing both sides of the same axle, which is what we recommend for even braking.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is the Hella 355123162 a vented rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's a vented one-piece design with cooling channels cast between the two friction faces, which pulls air through the disc to carry heat away during repeated stops.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the wheel bolt pattern?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The wheel bolt pattern is 7 x 130 millimeters. Check that against your vehicle's hub and wheel specs before ordering to be sure it's a match.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the key dimensions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The disc is 28 millimeters thick, 68.40 millimeters tall overall, with an 85 millimeter hub size and an 85 millimeter inside diameter. Measure your old rotor to confirm the fit.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the rotor made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's cast from gray cast iron with a zinc coating. The cast iron gives consistent, quiet braking and the zinc coating resists surface rust on the non-friction surfaces.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to remove the zinc coating before installing?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. The coating on the friction faces wears off during the first several stops. A quick wipe with brake cleaner to lift any packing oil is all you need.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Should I replace the brake pads at the same time?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Fresh pads mate to a new rotor surface during bed-in. Reusing old glazed pads on a new rotor leads to noise and uneven wear.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does one-piece design mean?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The hat and the friction ring are cast as a single unit rather than bolted together. There's nothing to loosen or corrode at a joint, and installation is simpler.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I bed in the new rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"After torqueing the caliper to your vehicle's spec, do a series of moderate stops from speed to lay down an even layer of pad material on the disc. Avoid hard stops until the pads are seated.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"My new rotor is causing vibration, what went wrong?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Almost always it's debris or rust left on the hub face behind the rotor. Clean the hub down to bare metal so the rotor sits perfectly flat, and the vibration usually disappears.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella","offers":[{"title":"Default Title","offer_id":45061815238749,"sku":"2008603","price":69.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_3baff245-205a-4f44-b1c2-93e9f51d8291.jpg?v=1789560481","url":"https:\/\/nvnmarine.com\/products\/hella-355123162-vented-disc-brake-rotor-7x130mm","provider":"NVN Marine","version":"1.0","type":"link"}