Catalogues

bitzer 4DESH-7, Reciprocating compressor, Semihermetic, 4 Cylinders

Use this catalogue to identify the spare parts you need to repair your compressor. The OEM catalogue is crossreferenced with our spare parts database, matched items are highlighted. Some of our existing spare parts may not be shown because our database is incomplete (e.g. missing OEM P/N), or because we sell the items separatelly (typical example is the piston-connecting rod assembly). If you have any doubt please ask us.

All OEM manufacturer's names, part numbers, diagrams, products description and information are provided for reference and identification purposes only, and it is not implied that any part listed is the product of the OEM manufacturer.

Item num.Ralco P/NOEM P/NDescription (from OEM manufacturer)Add
1KIT2324137283506Gasket set.
2MTR2401234616812Built-in motor; dimensions: Ø190 (40S 7,5 HP).
4KEY2320038400306Parallel key; dimensions: 10 × 6 × 63 (steel).
5LCKCMMB04532050209Washer; dimensions: Ø45 × Ø12,5 × 8.
638215003Thrust washer; dimensions: A12 (spring steel DIN 128); used in: Built-in motor.
7BLTCMA12X05538016707Hexagon head screw; dimensions: M12 × 55 (DIN 931 - M12 × 55 - 10.9).
8BLTCMA10X030
38015606Hexagon head screw; dimensions: M10 × 30; used in: Bearing cover.
9GKT23003C38240131Gasket ring; dimensions: A10 × 16 × 2 (copper); used in: Oil drain.
1030510741Bearing cover.
11BRG2205
31112501Bearing bush / Slide bearing; dimensions: Ø40 × Ø36 × 30 (Radial).
12GKT2320037293703Gasket; dimensions: 2241 × 241 × 0,38; used in: Bearing cover.
13AGT2303
32110503Oil splasher plate; dimensions: Ø185 × 51.
14BLTCMA6X01238015402Hexagon head screw; dimensions: M6 × 12; used in: Oil splasher plate.
15SPGCMW638215001Thrust washer; dimensions: S6 (spring steel).
1630229908Connecting rod / piston; dimensions: Ø50.
17ROD23200
30213401Connecting rod; dimensions: Ø58,3 × Ø15 × 83.
1830227770Piston; dimensions: Ø50.
19PIN2200
38340148Wrist pin; dimensions: Ø15 × Ø10 × 42.
20SNPCMIX01538223102Retaining ring with lugs; dimensions: Ø15 × 1; used in: Wrist pin.
21SGM2323038230095Piston ring; dimensions: Ø50 × 1,5 (ISO 6622); used in: Piston.
22SGM2902038231021Piston ring; dimensions: Ø50 × 1,5 (ISO 6622); used in: Piston.
23CKS2320030111150Eccentric shaft.
24WAS2204
31210302Thrust washer; dimensions: Ø46 × Ø37,5 × 3.
25BRG2205
31112504Bearing bush / Slide bearing; dimensions: Ø40 × Ø36 × 30 (Radial).
26WAS23200
31300024Adjusting washer; dimensions: Ø45 × Ø33,1 × 2; used in: Motor side.
27GRF230536131505Shut-off valve; dimensions: Ø22 - Ø19; used in: Discharge gas side.
28GKT1236
37270203Gasket; dimensions: 35 × 60 × 1.
29BLTCMA8X02038034001Cheese-head screw; dimensions: M8 × 20 (ISO 14579 - M8 × 20 - 8.8).
30HED2310330236036Cylinder head; dimensions: 165 × 125 × 57.
31PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF; used in: Cylinder head.
32BLTCMA10X06538005604Hexagon head screw; dimensions: M10 × 65; used in: Cylinder head.
33PLT2E23030405911Valve plate; dimensions: Ø50.
34GKT2325037261801Gasket; dimensions: 165 × 124 × 0,38 (metallic support); used in: Cylinder head.
35GKT23211
37251705Gasket; dimensions: 165 × 124 × 0,8.
36GRF237736131577Shut-off valve; dimensions: Ø28.
37BLTCMA10X030
38034006Cheese-head screw; dimensions: M10 × 30 (ISO 14579 - M10 × 30 - 8.8).
38GKT2002
37270405Gasket; dimensions: ØI 34,5 × 1,0 (LA66); used in: Suction gas shut-off valve.
39SRN2320336201203Suction gas filter; dimensions: Ø33 × 43; used in: Suction gas shut-off valve.
40TER23200
34550705Terminal plate; dimensions: 90 × 70 × 10 (6-wire).
4034550706Terminal plate; dimensions: 90 × 70 × 10 (3-wire).
4134343012Kit connection bridge; dimensions: 29,5 × 9,5 × 1.
42BLTCMA8X025
38039303Cheese-head screw; dimensions: M8 × 25 (ISO 4762 - M8 × 25 - 10.9).
46GKT2E20037293810Gasket; dimensions: 90 × 70 × 0,73; used in: Terminal plate.
47GKT23000T37220010Gasket ring; dimensions: Ø31,9 × 1,6 × 1,8 (PTFE); used in: Sight glass.
48GLS2330036181501Sight glass; dimensions: Ø22 × 1 1/8" - 18 UNEF.
5034351781Terminal box; dimensions: 202 × 132 × 83,5 (aluminum); from year: 12/2021.
50BOX230334352303Terminal box; dimensions: 202 × 132 × 83.
51BLT2315438050154Oval head screw; dimensions: M6 × 16; used in: Aluminium terminal box.
5238051602Oval head screw; dimensions: M4 × 18.
53SEN2101
34703504Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
53SEN2101
34703504Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
5334702804Compressor protection device (24 V - 50/60 Hz).
5334702805Compressor protection device (24 V - DC).
54GKT2320037293703Gasket; dimensions: 2241 × 241 × 0,38; used in: Housing cover.
5530523805Housing cover; used in: Motor side.
5638005602Hexagon head screw; dimensions: M10 × 55; used in: Housing cover.
57HTR230034321901Oil heater (200..260 V - 120 W).
5734321902Oil heater (100..140 V - 120 W).
5937000020Kit damper elements (elastomer).
6032439101Lifting eye; dimensions: 33 × 32 × 50.
6638005621Hexagon head screw; dimensions: M10 × 50; used in: Cylinder head.
6736620117Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
6836620119Protective cap; dimensions: M24×2 // L = 57,5 (plastic - GRP).
7037507901Plug; dimensions: Ø8 × 16; used in: Aluminium terminal box.
7534775001Retrofit kit oil control; dimensions: 241,2 × 241,2.
76PLUCMA20A38091003Sealing screw; dimensions: M20×1,5.
8034733403Opto-electronic unit (OLC-K1 230 V - 50/60 Hz).
8034733404Opto-electronic unit (OLC-K1 115 V - 50/60 Hz).
81GKT23006A38240301Gasket ring; dimensions: A20 × 24 × 1,5 (aluminum); used in: Oil level monitoring - minimum.
90PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF.
91PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF.
9236150122Schrader valve; dimensions: 1/4" - 18 NPTF.
10038051601Oval head screw; dimensions: M4 × 8.
10134502502Terminal strip; dimensions: 60 × 30 (6-pole).
11038000453Hexagon head screw; dimensions: M6 × 35.
111SPGCMW638215001Thrust washer; dimensions: S6 (spring steel).
11234595001Recommendation sign; dimensions: M6.
11330291502Terminal.
11431101801Spacer sleeve; dimensions: Ø14 × Ø6,3 × 21,4.
115WAS2E11538210154Toothed washer; dimensions: A6,4 (spring steel galvanized).
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