Mercedes Air Compressor Piston Ring Set 2.5mm (2.5/2.5/2.5/4.0), W112/W109/W100 - Fits Knorr Compressors Types

600AirSuspension Shop

  • $90.00
Tax included.

This is a set of 4 piston rings for the Knorr Air Compressors with standard 2.5mm thick compression rings (top rings number 1 and 2). For your information there are two different top compression rings used in the compressor pistons,  2.0 mm and 2.5mm. 

2.5mm top compression rings are more common than 2.0mm

The 2.5mm (ring number 3) and 4.0 mm (ring number 4) rings  are used in all air compressors, they are the same in both offered Piston Ring Sets. 

Please check your old rings carefully before ordering 


Please read about air pump/compressor renovation in my 600AirSuspension article under


Fits Knorr Compressors Types

Type  I/26848 1a-Ausführung 1964 (W100, M100, 6.3 L) 

Type  I/33421 = LP1101 1b-Ausführung 1966  (W100, M100, 6.3 L) 

Type  I/34977 = LP1102 2.Ausführung  (W100, M100, 6.3 L) 

Type I/42409 = LP1111 - (W109.018, M100, 6.3L)

Type I/46818 = LP1113 – (W109, M116/117 engine 3.5L/4.5L)

 Type I/42134 = LP1110   (W109.015, M130,  2.8L)

Type  I/25141 = LP1004 (W112, M189, 3L)

Type  I/27635   (W112, M189, 3L)

600 Air Suspension Shop Number : LF013

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