BLD4102H
PRESTOLITE LEECE NEVILLE BLD 24V 250A BRUSHLESS ALTERNATOR

The new Leece-Neville IdlePro Extreme™ series alternators offer industry-best output at low engine speeds, utilizing a high-amp, brushless design. Best-in-class IdlePro Extreme alternators feature an array of engineering benefits that enhance electrical system and engine performance to extend battery life and increase vehicle uptime. Isolated Ground Technology. Auxiliary Draft Cooling design* – special fan and front housing design and integration for temperature control of the front bearing. Front bearing is kept 10 C cooler as compared to traditional external fan designs. Remote sense capable to optimize alternator output and increase battery life.

Part No	Descriptions	Notes
A041521350S	ALTERNATOR FAN
A015106793S	ALTERNATOR FRONT HOUSING
A020520994S	ALTERNATOR ROTOR
A022521452S	ALTERNATOR STATOR
A011106761S	ALTERNATOR REAR HOUSING
A170521451S	ALTERNATOR FIELD COIL
A051521467S	ALTERNATOR RECTIFIER
R214521472S	ALTERNATOR VOLTAGE REGULATOR	Developed for single alternator applications only.
A038520992S	ALTERNATOR COVER	Obsolete. Supersede to A038107042S
K183106574S	ALTERNATOR OVERHAUL KIT
K212106575S	ALTERNATOR HARDWARE KIT
Z098520325	ALTERNATOR PULLEY NUT
A038107042S	ALTERNATOR COVER
R214107437S	ALTERNATOR VOLTAGE REGULATOR	Developed to load share on dual alternator applications. Can be used in single alternator applications.

Competitor Part Number	Competitor Name	Interchange Type	Notes
LN BLD4102H	FREIGHTLINER	Direct Replacement	OE Number
A0014740JB	PRESTOLITE ELECTRIC	Can Use
A0014740JB-B	PRESTOLITE ELECTRIC	Can Use
A0014740JBH	PRESTOLITE ELECTRIC	Can Use
A0014740JBMH	PRESTOLITE ELECTRIC	Can Use
178-222-100	PRESTOLITE ELECTRIC	Can Use	Verify application. Amperage upgrade.
178222100	PRESTOLITE ELECTRIC	Direct Replacement	Verify application. Amperage upgrade.
110-1002	PRESTOLITE ELECTRIC	Can Use	Verify application. Amperage upgrade.
1101002	PRESTOLITE ELECTRIC	Can Use	Verify application. Amperage upgrade.