OEM No/Model: ZDR4000
ZDR4000
For: Delco CS121, CS130 Series IR/EF Alternators
Replaces: Delco 1989658, 10456401, 10457236, 10457690,
10470730, 10472597, 10480569, D3991
Note: For heavy duty version use DR4000HD.
Features: 40A pressfit avalanche diodes, OE validated
Welded diode terminations
Hitemperature lead frame
Patented RamAir aluminum heat sink