{"product_id":"hella-pagid-355123112-front-brake-rotor-345mm-vented","title":"Hella Pagid 355123112 Front Disc Brake Rotor, 345mm Vented","description":"\u003cp class=\"nvn-hero\"\u003eThe Hella Pagid 355123112 is an original-equipment-quality front disc brake rotor for the European sedans and SUVs that run a 345 millimeter front brake. It's a one-piece, internally vented gray cast iron casting with a zinc coating that keeps rust off the hat and edges. Fit it, bed it in with fresh pads, and get back to confident stops.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Hella Pagid 355123112 is a front disc brake rotor built to the same standards as the part that came off your car at the factory. It's a one-piece, internally vented casting that measures 345 millimeters across the outside diameter with a 30 millimeter nominal thickness, sized for the front axle of the larger European sedans and SUVs that run a 345mm front brake. If your vehicle left the line with this rotor size, this is a straight replacement that goes on with your existing calipers, pads, and hardware.\u003c\/p\u003e\n\u003cp\u003eBraking turns motion into heat, and a lot of it. The vented design puts a ring of internal vanes between the two friction faces, and those vanes pull cooling air through the rotor as the wheel spins. That airflow carries heat away from the pad contact surface, which is what keeps the brakes feeling firm on a long mountain descent or after a few hard stops in traffic. Cooler rotors resist the fade and the pedal softness that show up when a cheaper casting can't shed heat fast enough.\u003c\/p\u003e\n\u003cp\u003eThe casting is gray cast iron, the material brake rotors have used for decades because it grips consistently, runs quiet, and wears in a predictable, even pattern with the pad. Hella Pagid machines the friction faces to tight tolerances so the rotor runs true, which is what stops the steering-wheel shimmy and brake-pedal pulsation you feel when a rotor has too much thickness variation or runout. You get smooth, linear stopping feel instead of grabbiness.\u003c\/p\u003e\n\u003cp\u003eThe rotor carries a zinc coating across the hat, the vanes, and the outer edges, all the areas the brake pad never sweeps clean. Those are exactly the spots that turn orange with surface rust within a week on a bare rotor, and on a car with open-spoke wheels that rust is the first thing anyone sees. The coating keeps those surfaces looking finished and slows the corrosion that can otherwise creep under the pad track over a wet winter. The pad wipes the friction band clean every time you brake, so that part stays bright on its own.\u003c\/p\u003e\n\u003cp\u003eDimensionally, this is a 345 millimeter rotor with a 30 millimeter friction band, an overall height of 51.90 millimeters, and a 68 millimeter center hub bore, with a 6 by 112 millimeter mounting pattern. Those numbers matter, because a front rotor has to match your caliper and carrier exactly. The 345mm front size lands this rotor on the Audi A6, A7, and Q5 family among other European applications, but brake specs change across model years and engine options, so confirm the fitment against part number 355123112 and your VIN before you order.\u003c\/p\u003e\n\u003cp\u003eThis one's sold individually, which is the honest way to buy a rotor. Brakes work as an axle pair, so you'll want two of these for the front, and you should always replace both sides at the same time so the left and right brakes bite evenly. It's also smart to fit fresh pads whenever you put on new rotors, and to bed the new pads and rotors in with a series of moderate stops so the pad material transfers evenly onto the fresh surface. Skip the bedding step and you can end up with the very pulsation the true-running rotor was built to avoid.\u003c\/p\u003e\n\u003cp\u003eA quick note on what this rotor isn't. It's not a cross-drilled or slotted performance upgrade, and it doesn't need to be. For a street car it's the smart choice, a smooth-faced OE-style rotor that runs cooler, quieter, and longer than a drilled disc that can crack around the holes under hard use. And it's specific to the 345mm front brake, so if your vehicle uses a different diameter or a rear rotor, this isn't the one. Match the size and the part number, and you're set.\u003c\/p\u003e\n\u003cp\u003eWhether you're a shop knocking out a brake job or a driveway mechanic doing your own, the 355123112 is the kind of part Hella Pagid is known for. Fit it, torque it to spec, bed it in, and it'll give you quiet, confident stops for the long haul.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003eOne-piece internally vented casting pulls cooling air between the friction faces to resist brake fade on long descents and hard stops\u003c\/li\u003e\n  \u003cli\u003e345 mm outside diameter with a 30 mm nominal friction band matches the front-axle brake spec on the vehicles this rotor is built for\u003c\/li\u003e\n  \u003cli\u003eZinc coating protects the hat, vanes, and outer edges from surface rust, so the rotor stays clean behind open-spoke wheels\u003c\/li\u003e\n  \u003cli\u003eGray cast iron friction surface delivers smooth, quiet, consistent braking feel that wears evenly with the pad\u003c\/li\u003e\n  \u003cli\u003eMachined to tight tolerances for true running, which prevents steering shimmy and brake-pedal pulsation\u003c\/li\u003e\n  \u003cli\u003e68 mm center hub bore and 6 x 112 mm mounting pattern locate the rotor precisely on the hub\u003c\/li\u003e\n  \u003cli\u003e51.90 mm overall height sets correct caliper and pad alignment for the front axle\u003c\/li\u003e\n  \u003cli\u003eSold individually so you can order the exact count your brake job needs\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 Pagid 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 355123112 a front or rear brake rotor?\u003c\/summary\u003e\n    \u003cp\u003eIt's a front disc brake rotor. The 345 mm diameter and 30 mm thickness are the front-axle spec on the vehicles it fits.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat vehicles does the Hella Pagid 355123112 fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's a front rotor for European applications that run a 345 mm front brake, including the Audi A6, A7, and Q5 family. Brake specs vary by model year and engine, so confirm fitment against part number 355123112 and your VIN before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this rotor vented?\u003c\/summary\u003e\n    \u003cp\u003eYes. It's a one-piece internally vented casting, with cooling vanes between the two friction faces that shed heat as the wheel turns.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the rotor dimensions?\u003c\/summary\u003e\n    \u003cp\u003eThe outside diameter is 345 millimeters, the nominal thickness is 30 millimeters, the overall height is 51.90 millimeters, and the center hub bore is 68 millimeters.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many rotors do I need?\u003c\/summary\u003e\n    \u003cp\u003eThis part is sold individually. Brakes work as an axle pair, so you'll want two for the front axle and should replace both sides at the same time.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes it come with brake pads or mounting hardware?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is the rotor only, sold single. Reuse your existing hardware and plan on fresh pads for the best result.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the zinc coating for?\u003c\/summary\u003e\n    \u003cp\u003eIt protects the areas the pad never sweeps, like the hat, vanes, and edges, from surface rust. The friction band is wiped clean by the pad every time you brake.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat material is the rotor made from?\u003c\/summary\u003e\n    \u003cp\u003eZinc coated gray cast iron. Gray cast iron grips consistently and wears evenly, and the zinc coating fights corrosion on the non-swept surfaces.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a drilled or slotted performance rotor?\u003c\/summary\u003e\n    \u003cp\u003eNo. It's a smooth-faced OE-style rotor, which for a street car runs cooler and quieter and lasts longer than a drilled disc that can crack around the holes.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould I replace rotors in pairs?\u003c\/summary\u003e\n    \u003cp\u003eYes. Always replace both front rotors at the same time so the left and right brakes bite evenly and the car tracks straight under braking.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to bed in the new rotor?\u003c\/summary\u003e\n    \u003cp\u003eYes. Bed the new pads and rotors with a series of moderate stops so the pad material transfers evenly. Skipping it can cause pulsation later.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it bolt on with my factory calipers?\u003c\/summary\u003e\n    \u003cp\u003eIf your vehicle came with this 345 mm front rotor, it's a direct replacement that reuses your existing calipers and carriers. Confirm the size against part number 355123112 first.\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 Pagid 355123112 Front Disc Brake Rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eHella Pagid\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e355123112\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300574623\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDesign\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\u003eOutside Diameter\u003c\/th\u003e\n\u003ctd\u003e345 Millimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal Thickness\u003c\/th\u003e\n\u003ctd\u003e30 Millimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHeight\u003c\/th\u003e\n\u003ctd\u003e51.90 Millimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Size\u003c\/th\u003e\n\u003ctd\u003e68 Millimeter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWheel Bolt Pattern\u003c\/th\u003e\n\u003ctd\u003e6 x 112 Millimeter\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 355123112 a front or rear brake rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a front disc brake rotor. The 345 mm diameter and 30 mm thickness are the front-axle spec on the vehicles it fits.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What vehicles does the Hella Pagid 355123112 fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a front rotor for European applications that run a 345 mm front brake, including the Audi A6, A7, and Q5 family. Brake specs vary by model year and engine, so confirm fitment against part number 355123112 and your VIN before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this rotor vented?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It's a one-piece internally vented casting, with cooling vanes between the two friction faces that shed heat as the wheel turns.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What are the rotor dimensions?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The outside diameter is 345 millimeters, the nominal thickness is 30 millimeters, the overall height is 51.90 millimeters, and the center hub bore is 68 millimeters.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many rotors do I need?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This part is sold individually. Brakes work as an axle pair, so you'll want two for the front axle and should replace both sides at the same time.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does it come with brake pads or mounting hardware?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is the rotor only, sold single. Reuse your existing hardware and plan on fresh pads for the best result.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the zinc coating for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It protects the areas the pad never sweeps, like the hat, vanes, and edges, from surface rust. The friction band is wiped clean by the pad every time you brake.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What material is the rotor made from?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Zinc coated gray cast iron. Gray cast iron grips consistently and wears evenly, and the zinc coating fights corrosion on the non-swept surfaces.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a drilled or slotted performance rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. It's a smooth-faced OE-style rotor, which for a street car runs cooler and quieter and lasts longer than a drilled disc that can crack around the holes.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Should I replace rotors in pairs?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Always replace both front rotors at the same time so the left and right brakes bite evenly and the car tracks straight under braking.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need to bed in the new rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Bed the new pads and rotors with a series of moderate stops so the pad material transfers evenly. Skipping it can cause pulsation later.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it bolt on with my factory calipers?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"If your vehicle came with this 345 mm front rotor, it's a direct replacement that reuses your existing calipers and carriers. Confirm the size against part number 355123112 first.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella Pagid","offers":[{"title":"Default Title","offer_id":45057502576733,"sku":"2008376","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_bba09e38-0df1-46ed-9ca7-1bd0d14d0fd6.jpg?v=1789488923","url":"https:\/\/nvnmarine.com\/products\/hella-pagid-355123112-front-brake-rotor-345mm-vented","provider":"NVN Marine","version":"1.0","type":"link"}