Alternator Rebuild Kit for Case CAT JCB John Deere more with Bosch 0120484018 - 12145aRK_A

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

🚘 Vehicle Application Details

• Apache Sprayer: 1000 Series 5.9L (2004–2009), AS1200 5.9L (2005–2010), Plus 1090 5.9L (2001–2011)
• Bell Tractor-Loader-Backhoe: 310SG 4.5L (2000–2010), 315SG 4.5L (2000–2010)
• Bomag Roller: BW213-3 5.9L (1996–2002), C850 5.9L (1996–2002)
• Case Agricultural Tractor / Tractor: 110, 120 (1997); 1896, 2096 (1984–1990); 5120, 5130, 5140, 5150, 5220, 5230, 5240, 5250, 5420 (1988–2001); M9078a, M9086a, M9094a, M968a, M975a (1998–2007); Maxxum Series (1988–2012); MX Series (1997–2007); 650K, 750K, 850K (2003–2015)
• Case Tracked Loader / Skid Steer Loader: TR270, TR270B, TR310, TR310B, TR320, TR320B, TV370, TV370B, TV380, TV380B (2011–2025); SR200, SR200B, SR210, SR210B, SR220, SR220B, SR240, SR240B, SR250, SR250B, SV250, SV250B, SV280, SV280B, SV300, SV300B (2011–2025); 85XT (1998–2006)
• Case Dozer / Crawler / Loader / Backhoe: 650G, 650H, 750H, 750K, 850H, 850K, 850XL, 855D, 1150H (1987–2007); 580K, 580SK, 590, 680L, 780D (1986–2000)
• Caterpillar Backhoe / Loader Backhoe: 416B, 426B, 428B, 436B, 438B, 446B (1991–1996)
• Dynapac Roller: 9240, CA251D, CA301D, CA301PD, CA301PDB, CA500D, CA512D, CA602D, CA602PD, CC421, CC522HF (1989–2011)
• JCB / J.C. Bamford: 185-65 (1995–2005); Fastrac 125, 135, 155, 185, 185-65, 3185 (1993–2007); W1402D, W1402PD, W1403D, W1403PD, W1505D, W1505PD, W1803D, W1805D, W1805PD (1990–1997)
• John Deere Tractor / Industrial: 6500, 6600, 6910, 9400 (1989–2005); 210C, 310C, 315C, 410D, 450G, 510C, 510D, 610C, 710B, 710C, 710D (1987–2003)
• John Deere Combine / Harvester / Cotton Picker: 1055, 1065, 1072, 1075, 1085, 1157, 1158, 1166, 1169, 1174, 1177, 2054, 2056, 2058, 2066, 2254, 2256, 2258, 2264, 2266, 4425, 4435, 9410, 9450, 9500, 9510, 9550, 9550SH, 9560, 9600, 9610, 9650, 9650 CTS/STS, 9750 STS, 9780 CTS, 9860 STS, CTS Series (1982–2007); 7445, 7450, 7460, 7750, 9930, 9960, 9965 (1987–2003)
• John Deere Forestry / Crawlers / Loaders / Marine: 400G, 450H, 455G, 550G, 550H, 555G, 650G, 650H, 643D/G/H/K, 843G/H/K, 548E/G, 640E/G, 648E/G, 740E/G, 748E/G, 540E/G (1988–2014); 482C, 3215, 3220, 3415, 3420, 3800, 430B, 435, 435C, 437C, 544G, 624G, 644G (1986–2004); 4045DFM50/70, 4045TFM50/75, 6068SFM50, 6068TFM50/75/76 (2004–2007); Windrowers 3430, 3830, 3930 (1985–1992); Other Ag 6610, 6710, 6810 (1993)
• Kawasaki Loader / Excavator: 65TM V, 65Z V (2002–2009); 70Z, 70Z II, 70Z III, 70Z IV (1984–2002)
• Komatsu Tractor-Loader-Backhoe: WB91R-5, WB93R-5, WB93S-5, WB97R-5EO (2004–2012)
• Massey Ferguson / McCormick: MF-9420 Windrower (2004–2014); CX104, CX140, MC 90, MC 115, MTX 110-2, MTX 110-4, MTX 125-2 (2001–2011)
• New Holland Tracked Loader / Skid Steer / Forklift / Roller: C227, C232, C237, C238, C327, C332 (2012–2025); L221, L223, L225, L228, L230, L321, L323 (2011–2025); F50C Forklift (2021–2025); V110 Roller (2024–2025)
• New Holland Backhoe / Wheel Loader / Dozer: B75D, B95C, B110C (2015–2025); U80C, U80D, W50BTC, W50C, W60BTC, W60C, W70BTC (2008–2025); D75, D85, D95, DC75, DC85, DC95 (2004–2015)
• Timberjack Forestry: 740, 840 (2001–2006); 330B, 430B, 430B II (2000–2006); 360D, 460D, 460D TC, 560D (1999–2006)

🔍 Cross-Reference Alternator Assemblies (Fits These Units)

• Bosch OE & Reman: 0120484018, AL9909X
• Case OE: 504060771, A 187623
• Caterpillar OE: 9X 0341, PX0341
• Cummins OE: 3 282 554
• John Deere OE: AH137883, SE501342
• Mercury Marine OE: 8M6007483
• New Holland / Iveco OE: 504060771
• IHC / Navistar OE: A 187 623
• Lester / PIC References: Lester 12145
• Other Crossovers: Excel 8321, TUG GSE6100087

📐 Component-Specific Technical Data

⚡ Voltage Regulator with Brushes Specs

• Technical Specifications: 12 Volt, 14.2 Voltage Set Point, 32mm Diameter Slip Ring, Hermetically Sealed Circuit, A-Circuit
• Replaces OEM: Bosch 1197311032, 1197311033, 1197311045, 1197311046, 1987237061, 2197311032, 9191067041, F005A10107; Case A187906; John Deere AL65077, AL79024; KHD 117-7145, 131-8682
• Aftermarket Crossovers: IB368, 80201180, 108368, W080-21, MGX788, 176-022, 09133, GNR-B044

⚡ Rubber Seal for Brush Cavity Specs

• Dimensions: 19mm x 23mm x 8mm W
• Interchange Numbers: W110-59

⚡ Drive End (DE) Bearing Specs

• Industry Number: 54700 / 6303-2RS
• Dimensions: 17mm ID x 47mm OD x 14mm W
• Replaces OEM: Bosch 1120905001, 1120905004, 1120905021, 1120905037, 1120905039, 1120905068, 1120905074, 1120905516, 1120905518, 1120905533, 1900905304, 1900905326, 1900905331, 1900905376, 1900905378, 1900905379, F00M990410, F00M990411, F00M990412
• Interchange Numbers: 6-303-4W

⚡ Rotor SRE Bearing Specs

• Industry Number: 53200 / 6201-2RS
• Dimensions: 12mm ID x 32mm OD x 10mm W
• Interchange Numbers: 6-201-4W

⚡ Bearing Tolerance Ring Specs

• Design: For Bosch Alternators (Used w/ 6201 Ball Bearing)
• Dimensions: 33mm ID x 35mm OD x 42mm Width
• Replaces OEM: Bosch 1120591075
• Aftermarket Crossovers: W110-33, 5-561, 130-07012, 14150, 46-91551

⚡ Capacitor Specs

• Technical Specifications: 2.2 µF (2.2MF), Blade Terminal End
• Replaces OEM: Bosch 0290800036, 0290800005
• Aftermarket Crossovers: 170-24000, 46-91100

⚡ Slip Ring Specs

• Dimensions: 17mm (0.67") ID x 28mm (1.1") OD x 22mm (0.87") L
• Replaces OEM: Bosch 1-124-303-001, 1-124-303-005, 1-124-303-015, 9-124-303-001
• Interchange Numbers: 28-91850

💕 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!