Alternator Rebuild Kit for 2010-2011 Mercedes S550 w/220A 0121813023 0121813123 - 11444OERK-A

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

🚙 Vehicle Application Details

• Mercedes-Benz Car:
  • S550 V8 5.5L 5461cc (2010-2011) *With 220 Amp Alternator Option

🔍 Cross-Reference Alternator Assemblies (Fits These Units)

• Bosch: 0121813023, 0121813123, 0 121 813 023, 0 121 813 123
• Mercedes-Benz OE: 000-906-02-00, 000906020088, A000-906-02-00, 0009060200, A0009060200
• Bosch Reman: AL0895X
• Lester Reference: 11444

📐 Component-Specific Technical Data

⚡ Voltage Regulator with Brushes Specs

• Design: Genuine OEM Bosch Voltage Regulator Brush Holder Brushes Assembly
• Replaces OEM: Bosch F00M346081, F00M346020, F00M346036, F00M346048, F00M346081714, 1986AE0041
• Aftermarket Crossovers: 230-24160, IB6020, W080-71N, 09167, GNR-B331, 176-078

⚡ Slip Ring Specs

• Dimensions: 5.2mm ID x 13.5mm OD x 42.7mm OAL
• Interchange Numbers: 28-91854, 28101, BO-1209, W160-03

⚡ Drive End Bearing (Front) Specs

• Dimensions: 17mm ID x 52mm OD x 17mm W
• Interchange Numbers: 55224, 10-3043-4

⚡ Rotor SRE Bearing (Rear) Specs & Accessories

• Industry Number: 6202-2RS
• Dimensions: 15mm ID x 35mm OD x 11mm W
• Interchange Numbers: 53500, 6-202-4
• Included Component: Bearing Tolerance Ring (Replaces Bosch F00M345000, F00M345001 / Part # 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!