Pagoda SL Group

W113 Pagoda SL Group => General Discussion => Topic started by: Balsaeed on February 04, 2025, 12:26:50

Title: Which piston size is compatible with my car?
Post by: Balsaeed on February 04, 2025, 12:26:50

I have a 1969 280SL
Engine number 130983-12-005851

Which piston size is compatible with my car ? Because i came to an understanding that it depends on the engine number and when it was manufactured

Title: Re: Which piston size is compatible with my car?
Post by: Pawel66 on February 04, 2025, 14:17:28

For 130983-12-005851 I see:

Up to engine 983 10/50 004596 983 12/52 007229

A 130 030 95 17 PISTON STANDARD 86.5 MM
or
A 130 030 98 17 PISTON STANDARD 86,5 MM (check availability)

then

A 130 030 75 17 PISTON INTERMEDIATE SIZE 86.75 MM (check availability)

then

A 130 030 96 17 PISTON REPAIR SIZE I 87 MM (NLA)
or
A 130 030 99 17 TLOK REPAIR SIZE I 87 MM

then

A 130 030 00 18 TLOK REPAIR SIZE II 87.5 MM

then

A 130 030 83 17 PISTON REPAIR SIZE III (NLA)

Title: Re: Which piston size is compatible with my car?
Post by: Cees Klumper on February 04, 2025, 16:48:14

As Pawel notes, there are various sizes that correspond to different stages of rebuilding/repair of the engine. In order to really know what pistons you need, you have to inspect the current pistons and cylinder bores, and go from there. Unless you are 100% certain the block has never been opened - but even then your best bet is to inspect it.

Title: Re: Which piston size is compatible with my car?
Post by: Balsaeed on February 10, 2025, 22:00:20

Thank you appreciate it

Title: Re: Which piston size is compatible with my car?
Post by: zoegrlh on February 11, 2025, 21:11:43

Those that have a replacement block from Mercedes, no number is assigned. So yes, inspect the pistons and the bores for correct sizing.