I no longer have my 300E but have the following parts that I had purchased for it. Some of them may fit 201's or 126's. Please verify part numbers.

I have included the brand of the parts also unless it was not on the package. In some cases, I have indicated the origin of the parts if it is not one of the preferred brands.

Shipping charges need to be added to the parts unless stated otherwise.

1. M103 Upper Ignition wire holder – Mercedes brand – (103 159 04 40) - $3.00
   
2. M103 air filter – Fram - $10.00 (2 available)
   
3. M103 oil filter – Mahle (102 184 05 01) – $4.00
   
4. M103 oil filter – Mobil 1 (102-184-05-01) - $4.00 (3 available)
5. M103 Spark plug wire set – Bosch - $55.00
6. M103 Oil pressure switch/sending unit - BWD (but made in USA) (006 542 94 17) - $25.00
7. M103 Spark plugs – correct non-resistor/copper core type – Denso T20EP-U - $20.00 for a set of 6
8. M103 valve cover gasket set – Felpro (made in Germany) (103 016 04 21) - $10.00
9. M103 Rear main seal - Elring (017 997 74 47) - $7.00
10. M103 Camshaft seal - Elring (018 997 79 47) - $2.00
11. M103 Timing case cover to crankcase (103 015 02 20) - $1.50 shipped (just shipping charges or free with other items)
12. Coolant temperature sensor – Bosch (006 542 77 17) - $50.00
13. Transmission fluid - Castrol Transmax Dex/Merc - $ 2.50/qt (10 available)
14. Coolant temperature sensor (the one that controls the radiator fan) – Mahle (006 545 42 24) - $ 25.00
15. W124 Warning triangle mount - Mercedes - $25.00 shipped
16. W124 Draglink/Center Tie rod assembly - Lemforder (124 460 12 05) - $35.00
17. W124 Front lower ball joint – Lemforder (124 333 03 27) - $ 30.00 for a set of 2
18. 300E Transmission filter kit – Elring – (22 8600 126) - $ 10.00
19. 300E Transmission B2 servo seal - Mercedes (006 997 73 47) - $6.00
20. 300E Rear brake pads – Textar (001 420 01 20) - $15.00
21. 300E Fuel filter with crush washers (002 477 44 01) - $ 10.00
22. 300E Differential output shaft seal (022 997 98 47) - $6.00 for a set of 2
23. 300E Front wheel bearing dust cap (may fit other models too)– Mercedes (168 357 00 89) - $ 1.50 (just shipping charges or free with other items)
24. 300E Radiator cap – Mercedes (124 500 04 06) - $15.00
25. 300E Radiator elbow fitting – Mercedes (000 500 08 94) - $6.00 shipped
26. 300E Master cylinder with reservoir (used) - $25.00

__________________
1986 300E (3/2002) Rear ended and totaled (10/2009)
2000 Xterra (5/2000)
1992 400E (11/2009) -Sold
1986 300E (12/2009) - Sold
2004 E500 Wagon (6/2013) - Sold