Brembo Rear Brake Disc (PAIR) Mercedes-Benz A-Class, CLA & GLA-Class - 09B78811

Vehicle Fitment & Part Details This rear brake disc is listed for the Mercedes-Benz A-Class (W176) with OE reference A 172 423 01 12 and Part MPN 09.B788.11. Brembo Coated Disc Line, 330 mm internally vented and slotted/perforated, high-carbon, coated. Confirm compatibility by matching the listed fitment details, the OEM reference number, and VIN/engine/chassis information where variants exist. Key Details SKU 09B78811 Component Brake Disc Position Rear Brand Brembo Part MPN 09.B788.11 GTIN / Barcode 8020584220030 OEM References Mercedes-Benz: A 172 423 01 12 Primary Fitment Mercedes-Benz A-Class (W176) A 45 AMG M 133.980 (2013-2018) Included With bolts/screws Specs 330 mm OD, 22 mm thick (min 20 mm), 5-hole, vented/slotted, high-carbon, coated Key Benefits Cross-references Mercedes-Benz OEM number A 172 423 01 12 for verification before ordering. Brembo Coated Disc Line: 330 mm internally vented and slotted/perforated, high-carbon, coated surface, supplied with bolts/screws. Product Specifications Specification Value Brake Disc Type Internally vented, slotted/perforated Outer Diameter 330 mm Thickness 22 mm Minimum Thickness 20 mm Height 42 mm Centering Diameter 67 mm Number of Holes 5 Machining High-carbon Surface Coated Included With bolts/screws Vehicle Fitment Includes 11 supplied applications. View Full Vehicle Fitment (11 applications) Model Chassis Variant Engine Code Power Years A-Class W176 A 45 AMG 4-matic (176.052) M 133.980 265kW/360PS 2013-2018 A-Class W176 AMG A 45 4-matic (176.052) M 133.980 280kW/381PS 2015-2018 CLA Coupe C117 CLA 45 AMG 4-matic (117.352) M 133.980 265kW/360PS 2013-2019 CLA Coupe C117 AMG CLA 45 4-matic (117.352) M 133.980 280kW/381PS 2015-2019 CLA Shooting Brake X117 CLA 45 AMG 4-matic (117.952) M 133.980 265kW/360PS 2015 CLA Shooting Brake X117 AMG CLA 45 4-matic (117.952) M 133.980 280kW/381PS 2015-2019 GLA-Class X156 GLA 45 AMG 4-matic (156.952) M 133.980 265kW/360PS 2014-2019 GLA-Class X156 AMG GLA 45 4-matic (156.952) M 133.980 280kW/381PS 2015-2019 SLC R172 AMG SLC 43 (172.466) M 276.822 270kW/367PS 2016- SLC R172 AMG SLC 43 (172.466) M 276.822 287kW/390PS 2018- SLK R172 55 AMG (172.475) M 152.980 310kW/422PS 2012- Fitment Notes Always match OEM reference number(s) and vehicle details before ordering. Confirm exact fitment using VIN, engine code, or chassis number if multiple variants exist. Installation / Use / Maintenance Tips Clean hub and mounting surfaces before fitting the new brake disc. Replace related wear hardware, seals, or brake fluid where applicable during installation. Use the supplied bolts/screws to secure the disc to the hub. After installation, verify pedal feel, confirm there are no leaks, and bed in friction components as applicable. Common Questions Will this rear brake disc fit my Mercedes-Benz A-Class? This part (09B78811) is listed for the fitments shown on this page. Confirm by matching the fitment details and verifying VIN/engine/chassis information where variants exist. What OEM part numbers does this cross-reference? Cross-reference numbers are listed in the Key Details section above. Match at least one to your original part before ordering. What brand is this part? This listing is for Brembo rear brake disc. What is included? With bolts/screws. How do I confirm fitment if there are multiple variants? Use VIN, engine code, and chassis/platform details and compare them to the fitment section above. If unsure, request fitment assistance before ordering.