{"product_id":"hella-355122861-brake-rotor-325mm-6x112-solid-disc","title":"Hella 355122861 Brake Rotor 325mm 6x112 Solid Disc","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella 355122861 is a solid, one-piece brake rotor cast from zinc-coated gray cast iron. It measures 325mm across with a 6 x 112 bolt pattern and a 67mm hub bore, and it's sold individually. Hella builds these to factory fitment standards, so it's a straight replacement when your old disc is scored, warped, or worn past spec.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Hella 355122861 is a solid brake rotor, or a brake disc if you learned the trade on European cars. It's a one-piece casting with no cooling vanes between the faces, 325mm across and 14mm thick. That solid, thinner profile is typical of a rear rotor, where braking loads are lighter and you don't need the extra mass of a vented disc. It bolts to a 6 x 112 wheel pattern and rides on a 67mm hub bore.\u003c\/p\u003e\n\u003cp\u003eHella casts these from gray cast iron, the same material the factory disc used, because it sheds heat evenly and machines to a clean, flat surface. The zinc coating is the part you notice first. It keeps the hat, the edges, and the areas the pads don't touch from flashing over with surface rust the week after you install it. Bare cast iron looks rough through an open wheel within a few rainy days. The friction faces still wear bright where the pads sweep, and that's normal, but the rest of the disc stays clean and corrosion-resistant a lot longer.\u003c\/p\u003e\n\u003cp\u003eSolid discs like this one are the right call for rear-axle duty. The rear brakes on most cars do maybe a third of the stopping work, so a vented disc back there is overkill. A solid rotor is lighter, there's less to warp, and it holds up fine to the loads it actually sees. This isn't a cost-cut, it's the correct part for the job.\u003c\/p\u003e\n\u003cp\u003eFitment comes down to the numbers. 325mm diameter, 54mm overall height, 14mm thickness, 67mm center bore, and a 6 x 112 bolt circle. Those all have to match what came off the car. The cleanest way to confirm you've got the right disc is the Hella part number, 355122861. Cross it against your vehicle before you order, because a rotor that's a few millimeters off in diameter or bore won't seat right and won't clear the caliper. If you're not sure, most parts lookups will confirm whether 355122861 fits your year, make, and model in a couple of clicks.\u003c\/p\u003e\n\u003cp\u003eDo the axle in pairs. Always. A fresh rotor on one side and a worn one on the other pulls the car under braking and wears the pads unevenly. And when the rotors come off, put fresh pads on with them. Fitting used pads to a clean rotor drags the old glaze across the new surface and you never get a proper bed-in. New rotor, new pads, every time.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward if you're set up for brake work. Knock the old rotor off, wire-brush the hub face down to bright metal, and check that it's flat. Any rust or crud trapped between the hub and the rotor hat shows up as runout, and you'll feel runout as a pulse through the pedal at speed. Wipe the braking surfaces with brake cleaner before the pads go on so nothing contaminates the bed-in.\u003c\/p\u003e\n\u003cp\u003eOne more thing on the coating. The zinc finish isn't only for looks, though clean discs behind open wheels do look sharp. It slows corrosion on the vane and hat areas, which matters if the car sits for stretches or lives somewhere with road salt in winter. A rusted-up rotor hat can seize to the hub and turn a ten-minute pad swap into a fight with a dead-blow hammer down the road. Starting with a coated disc keeps that from setting in.\u003c\/p\u003e\n\u003cp\u003eSo when do you actually need a new one? When the old rotor's scored deep enough to catch a fingernail, when it's worn below the minimum thickness stamped on the hat, or when you've got a pulsing pedal that fresh pads won't fix. Any of those and it's time. Hella has supplied braking components to European carmakers for decades, and the 355122861 is built to that same fit-and-forget standard. It's a single disc, so order two if you're doing both sides. Honest part, fair price, and it'll outlast a bargain rotor that rusts through in a season.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e325mm rotor diameter matches the factory disc size for correct caliper and pad sweep\u003c\/li\u003e\n  \u003cli\u003eSolid, non-vented one-piece casting keeps rear-axle weight down and gives less to warp\u003c\/li\u003e\n  \u003cli\u003e6 x 112 mm wheel bolt pattern for a direct bolt-on where that pattern is factory\u003c\/li\u003e\n  \u003cli\u003e67mm hub bore centers the disc on the hub for true, vibration-free running\u003c\/li\u003e\n  \u003cli\u003e14mm disc thickness and 54mm overall height to spec, so it clears the caliper and seats flat\u003c\/li\u003e\n  \u003cli\u003eZinc-coated finish resists surface rust on the hat and edges, keeping it clean through an open wheel\u003c\/li\u003e\n  \u003cli\u003eGray cast iron construction sheds heat evenly and machines to a flat, true face\u003c\/li\u003e\n  \u003cli\u003eSold individually, so you can order a matched pair for the axle\u003c\/li\u003e\n  \u003cli\u003eHella part number 355122861 for exact cross-reference to your vehicle\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 the 355122861 a solid or vented rotor?\u003c\/summary\u003e\n    \u003cp\u003eIt's a solid, one-piece disc with no cooling vanes between the faces. That's a common design for rear-axle rotors, where braking loads are lighter than the front.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat bolt pattern does it use?\u003c\/summary\u003e\n    \u003cp\u003e6 x 112 mm. Check that against your vehicle's wheel bolt pattern before ordering, since a mismatched pattern won't bolt up.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the hub bore diameter?\u003c\/summary\u003e\n    \u003cp\u003e67 mm. The rotor centers on the hub through that bore, so it has to match your hub exactly for true, vibration-free running.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the full dimensions?\u003c\/summary\u003e\n    \u003cp\u003e325 mm diameter, 54 mm overall height, and 14 mm disc thickness. Those need to match the rotor you're replacing.\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 sold individually. If you're servicing both sides of an axle, order two so the pair matches.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy is the rotor zinc coated?\u003c\/summary\u003e\n    \u003cp\u003eThe zinc coating keeps the hat, edges, and non-friction areas from rusting over shortly after install. The braking faces still wear bright where the pads sweep, and that's normal.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\n    \u003cp\u003eGray cast iron, the same material the factory disc uses. It sheds heat evenly and machines to a flat, true surface.\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. Fitting used pads to a new rotor drags old glaze across the clean surface and prevents a proper bed-in. Fresh rotor, fresh pads.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if I need a new rotor?\u003c\/summary\u003e\n    \u003cp\u003eReplace it if the surface is scored deep enough to catch a fingernail, it's worn below the minimum thickness stamped on the hat, or you've got a pulsing pedal that new pads don't cure.\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 355122861 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\u003e355122861\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300602579\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Type\u003c\/th\u003e\n\u003ctd\u003eSolid (non-vented)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDesign\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\u003e6 x 112 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e325 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e54 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Bore Diameter\u003c\/th\u003e\n\u003ctd\u003e67 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\": \"Is the 355122861 a solid or vented rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a solid, one-piece disc with no cooling vanes between the faces. That's a common design for rear-axle rotors, where braking loads are lighter than the front.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What bolt pattern does it use?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"6 x 112 mm. Check that against your vehicle's wheel bolt pattern before ordering, since a mismatched pattern won't bolt up.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the hub bore diameter?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"67 mm. The rotor centers on the hub through that bore, so it has to match your hub exactly for true, vibration-free running.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the full dimensions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"325 mm diameter, 54 mm overall height, and 14 mm disc thickness. Those need to match the rotor you're replacing.\"\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 sold individually. If you're servicing both sides of an axle, order two so the pair matches.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Why is the rotor zinc coated?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The zinc coating keeps the hat, edges, and non-friction areas from rusting over shortly after install. The braking faces still wear bright where the pads sweep, and that's normal.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is it made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Gray cast iron, the same material the factory disc uses. It sheds heat evenly and machines to a flat, true surface.\"\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. Fitting used pads to a new rotor drags old glaze across the clean surface and prevents a proper bed-in. Fresh rotor, fresh pads.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I know if I need a new rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Replace it if the surface is scored deep enough to catch a fingernail, it's worn below the minimum thickness stamped on the hat, or you've got a pulsing pedal that new pads don't cure.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella","offers":[{"title":"Default Title","offer_id":45062137380957,"sku":"2008667","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_3daee1cb-39e2-42ef-b2b0-11dcc6f7c3fe.jpg?v=1789576587","url":"https:\/\/nvnmarine.com\/products\/hella-355122861-brake-rotor-325mm-6x112-solid-disc","provider":"NVN Marine","version":"1.0","type":"link"}