BLD4016
PRESTOLITE LEECE NEVILLE BLD 12V 420A 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
A015521580S	ALTERNATOR FRONT HOUSING
A020520994S	ALTERNATOR ROTOR
A022521373S	ALTERNATOR STATOR
A170106789S	ALTERNATOR FIELD COIL
A051521559S	ALTERNATOR RECTIFIER
R214520998S	Alternator Voltage Regulator	Obsolete. Supersede to R214107033S
A038520992S	ALTERNATOR COVER	Obsolete. Supersede to A038107042S.
K183106574S	ALTERNATOR OVERHAUL KIT
K212106575S	ALTERNATOR HARDWARE KIT
Z098520325	ALTERNATOR PULLEY NUT
A038107042S	ALTERNATOR COVER
R214107033S	ALTERNATOR 12V VOLTAGE REGULATOR

Competitor Part Number	Competitor Name	Interchange Type	Notes
C657	NEIHOFF	Direct Replacement
100-18101	Delstar	Direct Replacement
10018101	Delstar	Direct Replacement
BLD4012	PRESTOLITE ELECTRIC	Can Use
BLD4014	PRESTOLITE ELECTRIC	Can Use
BLD4026	PRESTOLITE ELECTRIC	Can Use
61003345	DELCO REMY	Can Use	Long hinge replacement. See TSB-1219 and TSB-1231.

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