Alternator Capacitor (case mounted) for Delco 10DN, 10SI, 12SI, 27SI, 29SI, 40SI

Eliminate electrical interference, suppress voltage spikes, and protect sensitive onboard electronics with this direct-fit replacement Alternator Capacitor (Case Mounted). Engineered specifically to rebuild and service Delco 10DN, 10SI, 12SI, 27SI, 29SI, and 40SI alternators, this component filters out radio frequency noise and stabilizes charging output for reliable, long-lasting performance without having to purchase a complete alternator assembly.

Component-Specific Technical Data

• Component: Alternator Capacitor (Case Mounted)
• Alternator Series Compatibility: Delco 10DN, 10SI, 12SI, 27SI, 29SI, 40SI
• OEM Replacements: Caterpillar 655519; Delco 1959455, 1971411, 1978146, 1989037, 801824
• Aftermarket Crossovers: 8640400, DA-13, 170-12000, 111-400, 46-1100

Cross-Reference Alternator Assemblies (Fitted Units)

• Allis-Chalmers: 0245330-6, 0255864-1, 9004846-3, 9004867-9
• Baker Equipment: 100471, 100697, 104291, 104467, 118434, 721AE1
• Bobcat: 1536554
• Case: 130101Z, 20-1610T91, A135714, A45201, A47436, A51559, S84908
• Caterpillar: 086385, 2S0945, 3L5278, 655381, 664970, 9G6080, 9L7310
• Chrysler: 8127023, 8131881, 8134663, 8982775004, 8982775006, JR775004, JR775006
• Clark: 1536554, 1537217, 1830821, 2314007, 2334014, 2354002, 2354003, 567252, 6513962, 907739, 934028
• Cummins: 204559, 3604663RX
• Delco: 10495382, 1100056, 1100057, 1100059, 1100061, 1100062, 1100063, 1100064, 1100065, 1100066, 1100067, 1100068, 1100071, 1100074, 1100109, 1100110, 1100111, 1100113, 1100116, 1100117, 1100121, 1100122, 1100124, 1100125, 1100127, 1100128, 1100129, 1100130, 1100131, 1100132, 1100133, 1100135, 1100136, 1100137, 1100138, 1100139, 1100140, 1100141, 1100142, 1100143, 1100144, 1100145, 1100146, 1100147, 1100148, 1100149, 1100150, 1100151, 1100152, 1100153, 1100154, 1100155, 1100156, 1100158, 1100164, 1100165, 1100166, 1100167, 1100168, 1100174, 1100175, 1100176, 1100181, 1100182, 1100196, 1100202, 1100203, 1100204, 1100218, 1100221, 1100222, 1100225, 1100226, 1100228, 1100229, 1100230, 1100231, 1100232, 1100238, 1100256, 1100266, 1100267, 1100268, 1100281, 1100477, 1100487, 1100490, 1100491, 1100492, 1100494, 1100495, 1100496, 1100497, 1100498, 1100542, 1100543, 1100544, 1100545, 1100546, 1100547, 1100548, 1100549, 1100550, 1100551, 1100552, 1100553, 1100554, 1100556, 1100557, 1100558, 1100559, 1100560, 1100561, 1100562, 1100563, 1100564, 1100565, 1100566, 1100567, 1100568, 1100569, 1100570, 1100571, 1100572, 1100573, 1100574, 1100575, 1100576, 1100577, 1100578, 1100579, 1100580, 1100581, 1100582, 1100583, 1100584, 1100585, 1100587, 1100588, 1100589, 1100590, 1100591, 1100592, 1100593, 1100595, 1100596, 1100597, 1100600, 1100601, 1100605, 1100613, 1100615, 1100616, 1100617, 1100618, 1100619, 1100620, 1100621, 1100622, 1100623, 1100624, 1100625, 1100627, 1100628, 1100629, 1100630, 1100631, 1100632, 1100633, 1100634, 1100636, 1100637, 1100638, 1100639, 1100640, 1100642, 1100646, 1100647, 1100648, 1100649, 1100650, 1100651, 1100653, 1100654, 1100655, 1100656, 1100657, 1100658, 1100659, 1100661, 1100662, 1100663, 1100664, 1100665, 1100666, 1100667, 1100668, 1100669, 1100670, 1100671, 1100672, 1100674, 1100675, 1100676, 1100677, 1100678, 1100679, 1100681, 1100682, 1100683, 1100684, 1100686, 1100687, 1100688, 1100689, 1100690, 1100691, 1100692, 1100693, 1100694, 1100695, 1100696, 1100697, 1100698, 1100699, 1100700, 1100701, 1100702, 1100703, 1100704, 1100705, 1100706, 1100707, 1100708, 1100709, 1100710, 1100711, 1100713, 1100714, 1100715, 1100719, 1100720, 1100721, 1100722, 1100724, 1100725, 1100726, 1100727, 1100728, 1100729, 1100730, 1100731, 1100732, 1100733, 1100734, 1100735, 1100736, 1100737, 1100738, 1100739, 1100740, 1100741, 1100742, 1100744, 1100745, 1100748, 1100750, 1100751, 1100752, 1100758, 1100759, 1100760, 1100761, 1100762, 1100763, 1100764, 1100765, 1100767, 1100768, 1100769, 1100770, 1100771, 1100772, 1100773, 1100774, 1100775, 1100776, 1100777, 1100778, 1100779, 1100780, 1100781, 1100782, 1100784, 1100786, 1100787, 1100788, 1100790, 1100791, 1100793, 1100794, 1100795, 1100796, 1100797, 1100798, 1100799, 1100800, 1100801, 1100802, 1100803, 1100804, 1100805, 1100806, 1100807, 1100808, 1100809, 1100810, 1100811, 1100812, 1100813, 1100814, 1100815, 1100816, 1100817, 1100818, 1100819, 1100820, 1100821, 1100822, 1100825, 1100826, 1100827, 1100828, 1100830, 1100831, 1100832, 1100833, 1100834, 1100836, 1100837, 1100838, 1100839, 1100841, 1100842, 1100843, 1100845, 1100846, 1100847, 1100849, 1100851, 1100852, 1100853, 1100854, 1100855, 1100856, 1100857, 1100859, 1100860, 1100861, 1100862, 1100863, 1100864, 1100865, 1100870, 1100871, 1100872, 1100873, 1100874, 1100875, 1100878, 1100879, 1100880, 1100881, 1100882, 1100883, 1100884, 1100885, 1100886, 1100887, 1100888, 1100889, 1100890, 1100891, 1100892, 1100893, 1100894, 1100895, 1100896, 1100897, 1100899
• Lester: 7106, 7107, 7109, 7111, 7113, 7116, 7117, 7122, 7127-12, 7127-3, 7127-6, 7127-9, 7133, 7140, 7141, 7142, 7143, 7144, 7145-6, 7145-9, 7146, 7149, 7151, 7152, 7154-12, 7155, 7156, 7177-12, 7185-12, 7185-3, 7199-12, 7202, 7239, 7282-3, 7300

Vehicle Application Details

• Fitment Note: Fits a wide range of automotive, agricultural, marine, and industrial vehicles/equipment equipped with Delco 10DN, 10SI, 12SI, 27SI, 29SI, and 40SI series alternators matching the cross-reference assembly numbers listed above.

Concluding Worry-Free Promise

At DIYAlternator.com, we specialize exclusively in high-grade charging system components built to fit right the first time. Every replacement component is manufactured to meet or exceed strict OEM specifications for flawless fitment and long-term durability. If you have questions about fitment or need assistance verifying your alternator part numbers, our dedicated technical support team is here to ensure you get the exact part you need to get back on the road with complete confidence.