Alternator Rebuild Kit Mercedes B250 CLA250 GLA250 with 150 Amp Bosch 0125711030, 0125711055 - 20741RK-A

Need to rebuild your vehicle's alternator? This premium rebuild component kit is engineered to meet or exceed original factory specs, ensuring a perfect fit and long-lasting charging performance.

🚗 Vehicle Application Details

• Mercedes-Benz B250: L4 2.0L (2013-2019)
• Mercedes-Benz CLA250: L4 2.0L (2014-2019)
• Mercedes-Benz GLA250: L4 2.0L (2015-2020)

🔍 Cross-Reference Alternator Assemblies (Fits These Units)

• Mercedes-Benz OE: 000 906 00 22, 000-906-19-03, 000-906-19-03-80, A 000 906 00 22, A-000-903-00-22, A-000-906-19-03
• Bosch: 0 125 711 030, 0 125 711 055, 0125711030, 0125711055
• Bosch Reman: AL0900X
• Bosch Service Europe: 0 986 082 167
• Lester / PIC: Lester 20741 | PIC 220-5854

📐 Component-Specific Technical Data

⚡ Voltage Regulator with Brushes Specs

• Technical Specifications: 12 Volt System, B-Circuit, 14.3 Voltage Set Point, LIN, for Bosch on Mercedes
• Replaces OEM / Interchanges: Bosch 0272220809, 0272220839, F00M346151, ARB0808, VRB839, W080-102, BO-1354, 80201285B, 176-096, GNR-B341, IN0839

⚡ Slip Ring Specs

• Design: For Bosch 711 / 811 Series Alternators
• Dimensions: 5mm ID
• Replaces / Interchanges: Bosch F00M502700, F00M502710, 7120206, 173-506, W160-04, 28-91856

⚡ Drive End Bearing (Front) Specs

• Industry Number: 55224 / 10-3043-4W
• Dimensions: 17mm ID x 52mm OD x 17mm W
• Reference Numbers: 1-120-905-012, 1-120-905-054, 1-120-905-055, 1-120-905-070, 1-120-905-089, 1-120-905-510, 1-120-905-520, F-00M-990-417

⚡ Rotor SRE Bearing (Rear) Specs

• Industry Number: 53500 / 6202-2RS / 6-202-4W
• Dimensions: 15mm ID x 35mm OD x 11mm W
• Reference Numbers: F00M390405

⚡ Bearing Tolerance Ring / Cap Specs

• Replaces / Interchanges: Bosch F00M345000, F00M345001, 177-109, W110-80, 46-91557

❤️ Our Worry-Free Promise

Because automotive electrical parts are highly specific, we want you to buy with total confidence. If you tear down your alternator and realize you need a different size or configuration, don't sweat it. We offer easy, no-hassle returns and fast refunds. We are here to help your DIY build succeed!