Here is the list of 143 amp alternators:
Engine -----Model-------Year ------Application-------------Amp kW/HP ----SysMf --Plug Conf. --- Reman Alt.
5.0L-V8 --- CL500 ------ 98-------- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
6.0L-V12 -- CL600 ------ 99-98 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
4.2L-V8 --- S420 ------- 99-96 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
4.2L-V8 --- S420 ------- 95-94 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
5.0L-V8 --- S500 ------- 99-------- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
5.0L-V8 --- S500 ------- 98-96 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
5.0L-V8 --- S500 ------- 95-------- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
6.0L-V12 -- S600 ------- 99-98 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
6.0L-V12 -- S600 ------- 97-96 ---- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
5.0L-V8 --- SL500 ------ 98-95----- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
6.0L-V12 -- SL600 ----- -99-98----- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
6.0L-V12 -- SL600 ----- -97-96----- Bosch 143A ----------- 143 ----------- BO ---- B19 --------- AL0162X
***There was also a 115 amp in 1997 for the S420 and a 120 amp in 1994-1995.
BO=BOSCH
Voltage Regulator Plug Identification
Bosch =
Mercedes
AL0162X = 009-154-56-02
AL0162X = 009-154-67-02
AL0162X = 010-154-71-02