OM603 head casting numbers reference thread

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Holset

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01-26-2015, 05:35 AM #1

Hi!

Let's make a list.

Quick one-view reference to distinquish between Turbo & n/a heads:

[Image: turbo_sauger_kopf_om603.jpg]

^this is especially usefull for us europeans since a lot of Turbo engines have got n/a heads as replacement... Apart from thicker walled water jackets, the Turbo pre-chambers have a bigger diameter "neck" and increased internal volume.

[Image: vorkammer_om603_wis.jpg]

According to the workshop manual, Turbo engines have natrium filled valves

[Image: om_ventile.jpg]

And the head casting numbers. They do not refere to the part number in the EPC!

OM603 Turbo:

- 603 016 14 01 [confirmed]
- 603 016 15 01 [confirmed]
- 603 016 17 01 [confirmed]
- 603 016 18 01 [confirmed]
- 603 016 20 01 [confirmed]
- 603 016 22 01 [confirmed]

OM603 naturaly aspirated:

- 603 016 XX 01
- 603 016 10 01 [confirmed]
- 603 016 16 01 [confirmed]
- 603 016 XX 01

"XX" because I guess there are more revisions of this head? The factory manual doesn't list them, though.

This post was last modified: 02-14-2015, 12:37 PM by DiseaselWeasel.

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'88 300CD Turbo Coupé - OM603

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