{"product_id":"hella-355119531-vented-brake-rotor-328mm-5x120","title":"Hella 355119531 Vented Brake Rotor | 328mm 5x120","description":"\u003cp class=\"nvn-hero\"\u003eThis is the Hella 355119531, a vented one-piece brake rotor built for a 5 x 120 bolt pattern with a 75 millimeter hub. It's 328 millimeters across, cast from gray iron, and zinc coated to fight rust on the hat and vents. A correctly specified replacement disc for European sedans and SUVs. Confirm the size against your car and buy them in pairs.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThis is the Hella brake rotor, part number 355119531. It's a vented, one-piece disc cast from gray iron and finished with a zinc coating to hold off surface rust. If you've pulled a wheel and found scoring, a lip you can catch a fingernail on, or a pulsing pedal under braking, this is the kind of part that fixes it.\u003c\/p\u003e\n\u003cp\u003eThe numbers matter here, so let's lay them out. The rotor measures 328 millimeters across, that's about 12.9 inches. Overall height is 73 millimeters, thickness through the friction faces is 28 millimeters, and the center hub bore is 75 millimeters. The wheel bolt pattern is 5 x 120, five studs on a 120 millimeter circle. That combination shows up on a lot of European performance sedans and SUVs. Before you order, match those figures and the OE part number against your own car. A rotor that's a hair off on diameter or hub bore won't sit right, and you'll know it the first time you touch the brakes.\u003c\/p\u003e\n\u003cp\u003eVented is the important word. A vented rotor has cooling vanes cast between the two friction faces, so air pulls through the disc as the wheel turns. That moves heat out of the braking surface fast, which is exactly what you want on a heavier car or anything that sees spirited driving or long downhill grades. Heat is what warps rotors and fades pads, so getting it out of the disc keeps your stopping distances honest.\u003c\/p\u003e\n\u003cp\u003eThe one-piece gray cast iron construction is the traditional, proven approach. It's easy to bed, quiet, and machinable if you ever need to true it down the road, though at 28 millimeters you've got sensible material to work with. The zinc coating on the hat and edges is a nice touch. It keeps the non-friction areas from blooming orange the first week you drive in the rain, so the wheel and hub stay clean and the rotor comes off easier next time.\u003c\/p\u003e\n\u003cp\u003eA couple of install notes from experience. Replace rotors as an axle set, both sides, even if only one looks bad. Braking is a balance job and a fresh disc against a worn one pulls the car. Fit new pads at the same time and bed them properly, a series of firm slowdowns from moderate speed without coming to a full stop, so the pad material transfers evenly onto the new surface. Clean the hub face down to bare metal before the rotor goes on, torque the caliper bracket and any retaining screw to spec, and you're done. This one's listed and sold as a single rotor, so order two if you're doing the pair, which you should be.\u003c\/p\u003e\n\u003cp\u003eHow do you know it's time? A few signs. A vibration or shudder through the pedal or steering wheel under braking usually means the rotor has warped or worn unevenly. A deep groove or a pronounced edge lip means the friction surface is past its service life. And if the rotor has worn below its minimum thickness, stamped into the hat by the manufacturer, it has to be replaced, not resurfaced. Rotors are a wear item, same as pads, so there's no shame in them wearing out. Catching it early saves the caliper and keeps the car stopping straight.\u003c\/p\u003e\n\u003cp\u003eOn corrosion, the zinc coating earns its keep in real driving. Bare cast iron starts flashing rust within hours of getting wet, and while the friction ring wipes clean every time you brake, the hat and the vents don't. Left bare, that rust creeps and makes the next rotor swap a fight. The coating keeps those areas cleaner and buys you an easier service down the line. It's a small thing that tells you the part was built to live outside, not just look good in the box.\u003c\/p\u003e\n\u003cp\u003eBottom line, this is a straightforward, correctly specified replacement disc for a 5 x 120 pattern with a 75 millimeter hub and a 328 millimeter vented rotor. Confirm those dimensions against your vehicle, buy them in pairs, throw fresh pads at it, and you've got a solid brake job. If you're not sure whether the size matches your car, send us the year, make, and model or your OE rotor number and we'll help you check before you order.\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 with internal cooling vanes to pull heat out of the friction surface fast\u003c\/li\u003e\n  \u003cli\u003e328 mm (12.9 in) diameter for strong stopping power on heavier European sedans and SUVs\u003c\/li\u003e\n  \u003cli\u003e5 x 120 mm wheel bolt pattern, a common fitment on European performance vehicles\u003c\/li\u003e\n  \u003cli\u003e75 mm hub bore for a precise, hub-centric fit on the axle\u003c\/li\u003e\n  \u003cli\u003e28 mm friction-face thickness gives sensible material for a long service life\u003c\/li\u003e\n  \u003cli\u003eOne-piece gray cast iron construction, proven, quiet, and easy to bed in\u003c\/li\u003e\n  \u003cli\u003eZinc coating on the hat and vents fights corrosion and keeps future swaps easy\u003c\/li\u003e\n  \u003cli\u003eSold as a single rotor so you can order exactly what your axle 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 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 vehicles use a 5 x 120 bolt pattern?\u003c\/summary\u003e\n    \u003cp\u003eThe 5 x 120 pattern shows up on a lot of European performance sedans and SUVs. With a 75 millimeter hub bore and a 328 millimeter vented rotor, this disc is spec'd for that family of cars. Always confirm the exact fitment against your OE rotor part number or your year, make, and model before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a vented rotor?\u003c\/summary\u003e\n    \u003cp\u003eYes. It has cooling vanes cast between the two friction faces, so air pulls through the disc as the wheel spins. That sheds heat quickly and helps resist warping and brake fade on heavier or hard-driven cars.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the diameter and thickness?\u003c\/summary\u003e\n    \u003cp\u003eThe rotor is 328 millimeters in diameter, about 12.9 inches, with a 28 millimeter friction-face thickness and a 73 millimeter overall height. The center hub bore measures 75 millimeters.\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 as a single rotor. Brakes should be serviced as an axle set, so for most jobs you'll want two of these, one for each side.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShould I replace both rotors at once?\u003c\/summary\u003e\n    \u003cp\u003eYes. Replace rotors in pairs across the axle even if only one looks worn. A fresh disc against a worn one throws off the braking balance and can make the car pull under braking.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does the zinc coating do?\u003c\/summary\u003e\n    \u003cp\u003eThe zinc coating protects the hat, edges, and vents from corrosion. The friction ring wipes clean every time you brake, but the non-friction areas would otherwise rust fast. The coating keeps the wheel and hub cleaner and makes the next rotor swap easier.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need new brake pads too?\u003c\/summary\u003e\n    \u003cp\u003eIt's the right move. Fitting fresh pads with new rotors lets the two surfaces bed to each other cleanly. Bed them with a series of firm slowdowns from moderate speed without coming to a full stop so the pad material transfers evenly.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan this rotor be resurfaced?\u003c\/summary\u003e\n    \u003cp\u003eGray cast iron can be machined if it's still above the manufacturer's minimum thickness, which is stamped into the hat. If it has worn below that figure, it must be replaced rather than turned.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this rotor fits my car?\u003c\/summary\u003e\n    \u003cp\u003eMatch the four key numbers, 328 millimeter diameter, 28 millimeter thickness, 75 millimeter hub bore, and the 5 x 120 bolt pattern, against your existing rotor, then cross-check the OE part number. If you're unsure, send us your year, make, and model and we'll help you verify before you buy.\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 355119531 Vented Brake Rotor, 328mm 5 x 120mm\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\u003e355119531\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e4082300512557\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\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eZinc Coated Gray Cast Iron\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eWheel Bolt Pattern\u003c\/th\u003e\n\u003ctd\u003e5 x 120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Diameter\u003c\/th\u003e\n\u003ctd\u003e328 mm (12.9 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eOverall Height\u003c\/th\u003e\n\u003ctd\u003e73 mm (2.87 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRotor Thickness\u003c\/th\u003e\n\u003ctd\u003e28 mm (1.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eHub Bore Diameter\u003c\/th\u003e\n\u003ctd\u003e75 mm (2.95 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSold As\u003c\/th\u003e\n\u003ctd\u003eSingle (each)\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 vehicles use a 5 x 120 bolt pattern?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The 5 x 120 pattern shows up on a lot of European performance sedans and SUVs. With a 75 millimeter hub bore and a 328 millimeter vented rotor, this disc is spec'd for that family of cars. Always confirm the exact fitment against your OE rotor part number or your year, make, and model before ordering.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is this a vented rotor?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. It has cooling vanes cast between the two friction faces, so air pulls through the disc as the wheel spins. That sheds heat quickly and helps resist warping and brake fade on heavier or hard-driven cars.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the diameter and thickness?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The rotor is 328 millimeters in diameter, about 12.9 inches, with a 28 millimeter friction-face thickness and a 73 millimeter overall height. The center hub bore measures 75 millimeters.\"\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 as a single rotor. Brakes should be serviced as an axle set, so for most jobs you'll want two of these, one for each side.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Should I replace both rotors at once?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Replace rotors in pairs across the axle even if only one looks worn. A fresh disc against a worn one throws off the braking balance and can make the car pull under braking.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What does the zinc coating do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The zinc coating protects the hat, edges, and vents from corrosion. The friction ring wipes clean every time you brake, but the non-friction areas would otherwise rust fast. The coating keeps the wheel and hub cleaner and makes the next rotor swap easier.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need new brake pads too?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's the right move. Fitting fresh pads with new rotors lets the two surfaces bed to each other cleanly. Bed them with a series of firm slowdowns from moderate speed without coming to a full stop so the pad material transfers evenly.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can this rotor be resurfaced?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Gray cast iron can be machined if it's still above the manufacturer's minimum thickness, which is stamped into the hat. If it has worn below that figure, it must be replaced rather than turned.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How do I confirm this rotor fits my car?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Match the four key numbers, 328 millimeter diameter, 28 millimeter thickness, 75 millimeter hub bore, and the 5 x 120 bolt pattern, against your existing rotor, then cross-check the OE part number. If you're unsure, send us your year, make, and model and we'll help you verify before you buy.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Hella","offers":[{"title":"Default Title","offer_id":45061975507037,"sku":"2008634","price":67.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_45c868d7-50c0-4441-8daf-d60b34e2f9cb.jpg?v=1789567270","url":"https:\/\/nvnmarine.com\/products\/hella-355119531-vented-brake-rotor-328mm-5x120","provider":"NVN Marine","version":"1.0","type":"link"}