Used Mercedes-Benz S420 engines & transmissions
We list 18 used engines and 20 used transmissions for the Mercedes-Benz S420, covering 6 model years from 1994–1999, with 38 ready to ship. Transmissions: automatic.
Prices start at engines from $725 and transmissions from $1,050, with a 3-month warranty included. Each unit is checked against your VIN before it ships.
Mercedes-Benz S420 by year
Choose your model year to compare every engine and transmission option.
| Year | Engines | Transmissions | |
|---|---|---|---|
| 1999 S420 | 2 options · from $755 | 3 options · from $1,050 | View |
| 1998 S420 | 2 options · from $1,750 | 3 options · from $4,050 | View |
| 1997 S420 | 3 options · from $1,000 | 6 options · from $4,050 | View |
| 1996 S420 | 3 options · from $1,000 | 4 options · from $1,050 | View |
| 1995 S420 | 4 options · from $725 | 2 options · from $1,050 | View |
| 1994 S420 | 4 options · from $725 | 2 options · from $1,050 | View |
Popular Mercedes-Benz S420 units
In stock1999 Mercedes-Benz S420 Engine
140 Type, S320
from 114k mi3-mo warranty
Price$1,750
6 in stock1999 Mercedes-Benz S420 Engine
129 Type, SL500
from 38k mi3-mo warranty
6 options from$755
2 in stock1999 Mercedes-Benz S420 Transmission
140 Type, AT, S500 (722.620)
from 47k mi3-mo warranty
2 options from$4,235
5 in stock1999 Mercedes-Benz S420 Transmission
140 Type, AT, S320 (722.605)
from 17k mi3-mo warranty
5 options from$4,050
In stock1999 Mercedes-Benz S420 Transmission
129 Type, AT, SL500 (722.624)
from 73k mi3-mo warranty
Price$1,050
In stock1998 Mercedes-Benz S420 Engine
140 Type, S320
from 114k mi3-mo warranty
Price$1,750
In stock1998 Mercedes-Benz S420 Engine
129 Type, SL500
from 94k mi3-mo warranty
Price$2,825
2 in stock1998 Mercedes-Benz S420 Transmission
140 Type, AT, S500 (722.620)
from 47k mi3-mo warranty
2 options from$4,235
Not sure which S420 unit you need?
Send us your VIN and a specialist matches the exact engine or transmission code.