Catalogues

bitzer CSH6551-50, Screw compressor, Semihermetic

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
1KIT286537283601Gasket set.
200000007Article no longer available; from year: 07/2020.
300000007Article no longer available; from year: 07/2020.
438400120Parallel key (steel DIN 6885 - A); used in: Male rotor.
500000007Article no longer available; from year: 07/2020.
6RTN2802137410021Piston ring; from year: 03/2009.
731400831Nozzle; from year: 03/2009.
831400831Nozzle; dimensions: M8 × 6 × Ø1; from year: 03/2009.
938390403Parallel pin; dimensions: Ø12 × 25 (with thread).
10RTN28001537410015Piston ring; dimensions: Ø60 × 2; used in: Male rotor.
11RTN28001537410015Piston ring; dimensions: Ø60 × 2; used in: Male rotor.
1200000001Article cancelled; from year: 03/2009.
13RTN2801637410016Piston ring; dimensions: Ø35 × 2; used in: Female rotor; from year: 03/2009.
14BRG2821038620010Cylindrical roller bearing; dimensions: Ø50 × Ø90 × 23 (DIN 5412 - NU 2210 E); used in: Female rotor.
15BRG2823138620031Cylindrical roller bearing; dimensions: Ø25 × Ø62 × 24 (DIN 5412 - NU 2305 E); used in: Male rotor.
16BRG281238610012Angular ball bearing; dimensions: Ø40 × Ø90 × 23 (DIN 628 - 7308B); used in: Male rotor.
17BRG280938610009Angular ball bearing; dimensions: Ø25 × Ø62 × 17 (DIN 628 - 7305B); used in: Female rotor.
18BRG280138660301Roller bearing unit (complete // kit = 8 pieces).
20LCKCMKM05
38190204Grooved nut; dimensions: M25×1,5; used in: Female rotor.
21LCKCMKM08
38190207Grooved nut; dimensions: M40×1,5 (steel); used in: Male rotor.
2231400835Nozzle; from year: 03/2009.
2331400835Nozzle; from year: 03/2009.
65000000001Article cancelled; from year: 03/2009.
4034686543Built-in motor; dimensions: Ø223 (40P 50 HP).
4438006911Hexagon head screw; dimensions: M16 × 55 (ISO 4014 - M16 × 55 - 10.9); from year: 2.
4500000001Article cancelled; from year: 2.
4632050204Thrust washer; dimensions: Ø54 × Ø17 × 5 (steel); used in: Rotor.
5038224211Snap ring; dimensions: Ø47,8 × 12,3 × 1,5 (steel); used in: Rotor.
51PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF; used in: Stator; from year: 2.
55VSG280036110605Pressure relief valve; dimensions: Ø45,6 × 70 (28 bar); from year: 2.
56RNG5903037200110O-ring (CR); used in: Pressure relief valve.
5732719001Magnet; dimensions: 24 × 24 × 20.
60SNPCMIX09038223110Retaining ring with lugs; dimensions: Ø90 × 3 (DIN 472 - 90 × 3); used in: Male rotor.
61BRG282438620024Cylindrical roller bearing; dimensions: Ø30 × Ø62 × 20 (DIN 5412 - NU 2206 E); used in: Female rotor.
62BRG2821038620010Cylindrical roller bearing; dimensions: Ø50 × Ø90 × 23 (DIN 5412 - NU 2210 E); used in: Male rotor.
6330293803Spacer washer; dimensions: 186 × 118,5 × 51,8; from year: 2.
6538034301Cheese-head screw; dimensions: M6 × 50 (ISO 4762 - M6 × 50 - 10.9); from year: 2.
6736021206Slider guide; used in: Economiser; from year: 2.
68SNPCMIX03638223125Retaining ring with lugs; dimensions: Ø36 × 1,5 (DIN 472 - 36 × 1,5); used in: Economiser; from year: 2.
6931200403Seat ring; dimensions: Ø36 × 8; used in: Economiser; from year: 2.
7038250401Gasket ring; used in: Economiser.
7100000003Not available separately.
7238490202Sliding block; dimensions: 12 × 20 × 8; used in: Slider; from year: 2.
7338030162Cheese-head screw; dimensions: M5 × 12 (DIN 912 - M5 × 12 - 8.8); used in: Slider; from year: 2.
74BLTCMA10X035
38030684Cheese-head screw; dimensions: M10 × 35 (DIN 912 - M10 × 35 - 10.9); used in: Bearing chamber.
7600000007Article no longer available; from year: 3.
7738021301Hexagon head screw; dimensions: M10 × 16 (DIN 6921 - M10 × 16 - 8.8).
78GKT01058A38240305Gasket ring; dimensions: A22 × 27 × 1,5 (aluminum DIN 7603).
79PLU281336611413Sealing screw; dimensions: M22×1,5 (DIN 910 - M22×1,5).
80BLTCMA10X02038030689Cheese-head screw; dimensions: M10 × 20 (DIN 912 - M10 × 20 - 10.9).
8138030624Cheese-head screw; dimensions: M10 × 40 (DIN 912 - M10 × 40 - 10.9).
8934343200Kit terminal plate; dimensions: 165 × 120 × 15,5; used in: Kit terminal plate; from year: 1.
90GKT2039
37242107Gasket; dimensions: 165 × 120 × 1; used in: Terminal plate; from year: 2.
91TER280234550617Terminal plate; dimensions: 165 × 120 × 15,5 (6-wire); from year: 2.
9200000001Article cancelled; from year: 2.
9300000001Article cancelled; from year: 2.
95BLTCMA10X02038030689Cheese-head screw; dimensions: M10 × 20 (DIN 912 - M10 × 20 - 10.9); used in: Terminal plate.
120GRF250436133804Shut-off valve; dimensions: Ø54 (2 1/8"); used in: Suction side; from year: 07/2007.
12136620122Protective cap; dimensions: M27×2 // L=70 (plastic - GRP); from year: 05/2018.
12336611008Plug; dimensions: 1/4" - 18 NPTF (steel); used in: Suction side.
124GKT280237230302Gasket; dimensions: Ø75 × Ø61 × 2; used in: Pipe connection.
12536532103Brazing and welding bush; dimensions: Ø54 (2 1/8") (steel); used in: Suction side.
12636712102Counter flange; dimensions: 110 × 110; used in: Suction side.
127BLTCMA16X055
38010909Hexagon head screw; dimensions: M16 × 55 (DIN 933 - M16 × 55 - 8.8); used in: Suction side.
12837503002Plug; dimensions: Ø54,5 × 13,5; used in: Suction side.
12932050608Blanking plate; dimensions: Ø76 × 1,5 (aluminum); used in: Suction side.
130GKT2023
37230103Gasket; dimensions: Ø76 × Ø60 × 1; used in: Suction gas shut-off valve.
131BLTCMA16X11038000958Hexagon head screw; dimensions: M16 × 110 (DIN 931 - M16 × 110 - 8.8); used in: Suction gas shut-off valve.
133SRN280836200208Suction gas filter; dimensions: Ø74 × 100.
134GKT2023
37230103Gasket; dimensions: Ø76 × Ø60 × 1; used in: Suction gas filter.
135BLTCMA16X060
38010955Hexagon head screw; dimensions: M16 × 60 (DIN 933 - M16 × 60 - 8.8); used in: Suction side; from year: 01/2011.
14036910803Check valve.
141SNPCMIX05238223123Retaining ring with lugs; dimensions: Ø58 × 2 (DIN 472 - 58 × 2); used in: Check valve.
150GRF230136133801Shut-off valve; dimensions: Ø42 (1 5/8"); used in: Discharge gas side; from year: 07/2007.
15136620122Protective cap; dimensions: M27×2 // L=70 (plastic - GRP); from year: 05/2018.
15236611008Plug; dimensions: 1/4" - 18 NPTF (steel); used in: Discharge gas shut-off valve.
154GKT2024
37230301Gasket; dimensions: Ø52 × Ø37 × 2; used in: Pipe connection.
15536532114Brazing and welding bush; dimensions: Ø42 (1 5/8"); used in: Discharge gas shut-off valve.
156GRF259036712101Counter flange; dimensions: 80 × 80; used in: Discharge gas shut-off valve.
15738060301Cheese-head screw; dimensions: M12 × 50 (DIN 912 - M12 × 50 - 8.8); used in: Discharge gas shut-off valve; from year: 02/2011.
15937503001Plug; dimensions: Ø41,3 × 14; used in: Discharge gas shut-off valve.
160GKT2033
37230102Gasket; dimensions: Ø70 × Ø54 × 1.
16138010758Hexagon head screw; dimensions: M12 × 80 (DIN 933 - M12 × 90 - 8.8); used in: Discharge gas shut-off valve.
16236150121Schrader valve; dimensions: 1/8" - 27 NPTF.
16538030641Cheese-head screw; dimensions: M12 × 16 (DIN 912 - M12 × 16 - 10.9); used in: Earth screw.
166PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF; used in: Discharge gas side.
167PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF; used in: Discharge gas side.
168PLU2E20036610021Plug; dimensions: 1/8" - 27 NPTF; used in: Discharge gas side.
17036133206Liquid injection; dimensions: Ø16.
17036133202Liquid injection; dimensions: Ø16.
170PLU281336611413Sealing screw; dimensions: M22×1,5 (DIN 910 - M22×1,5).
17036132916Shut-off valve; from year: 08/2003.
17136600101Angled pipe connection; dimensions: Ø16 - 1 1/4" - 12 UNF.
171GRF287436132106Shut-off valve; dimensions: Ø22 (1 1/4").
172GKT2100T
37220003Gasket ring; dimensions: Ø25,4 × Ø22,2 × 1,5 (1 1/4-12 - PTFE).
17436521029Screwed nipple; dimensions: M22×1,5 × 1 1/4" - 12 UNF.
17436133206Liquid injection; dimensions: Ø16.
175GKT01058A38240305Gasket ring; dimensions: A22 × 27 × 1,5 (aluminum DIN 7603).
17636620117Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
18036703001Blind flange; dimensions: 91 × 52 × 13.
18137293101Gasket; dimensions: 91 × 42 × 1.
18236790401Connecting flange; dimensions: (1"); used in: Oil cooler.
183GKT2801T37220001Gasket ring; dimensions: Ø14,3 × 1,5 (PTFE).
18436600116Angled pipe connection; dimensions: Ø16 - 1" - 14 UNS; used in: Oil cooler.
18537270404Gasket; dimensions: 91 × 52 × 1,5.
18636701519Flange; dimensions: 91 × 52 × 13 - 1/8"-27 NPTF (steel).
187PLU7502236611001Plug; dimensions: 1/8“ - 27 NPTF (steel).
18838030625Cheese-head screw; dimensions: M10 × 50 (DIN 912 - M10 × 50 - 10.9).
188BLTCMA10X030
38030632Cheese-head screw; dimensions: M10 × 30 (DIN 912 - M10 × 30 - 10.9).
18900000001Article cancelled.
19031400825Nozzle; dimensions: M8 × 10 × Ø1,6.
20037001203Kit damper elements.
20532730908Foot; dimensions: 360 × 60 × 13.
20638010652Hexagon head screw; dimensions: M10 × 25 (DIN 933 - M10 × 25 - 8.8).
20732730908Foot; dimensions: 360 × 60 × 13.
20838010652Hexagon head screw; dimensions: M10 × 25 (DIN 933 - M10 × 25 - 8.8).
21337270807Gasket; dimensions: 91 × 52 × 0,38 (metallic support).
21437591401Retaining ring with lugs; dimensions: Ø27 × 6,5; from year: 11/2007.
215VSG280634716101Solenoid valve (LA66); from year: 11/2007.
216BLTCMA10X030
38030632Cheese-head screw; dimensions: M10 × 30 (DIN 912 - M10 × 30 - 10.9); used in: Capacity control.
217SOL280234331314Solenoid coil; dimensions: 33 × 42 × 46 (230 V - 50/60 Hz).
217SOL280234331314Solenoid coil; dimensions: 33 × 42 × 46 (230 V - 50/60 Hz).
21734331313Solenoid coil (115 V - 60 Hz).
21734331329Solenoid coil (24 V - 50/60 Hz).
21734331331Solenoid coil (115 V - DC).
21734331330Solenoid coil (24 V - DC).
21734331332Solenoid coil (48 V - DC).
21838190909Hexagon nut; dimensions: M10; used in: Capacity control; from year: 11/2007.
21938901902Electric connector of the device.
227RNG2320037202120O-ring (EPDM); used in: Heater sleeve.
22834590505Heater sleeve; dimensions: Ø22 × 204; used in: Oil heater.
22937502104Plug; dimensions: Ø24,6 × 12.
23034321307Oil heater (230 V - 1 - 50/60 Hz - 200 W).
23034321308Oil heater (115 V - 1 - 50/60 Hz - 200 W).
23034321309Oil heater (400 V - 1 - 50/60 Hz - 200 W).
231RNG7512737202114O-ring (EPDM); used in: Oil heater.
23238901902Electric connector of the device; used in: Oil heater.
23431400825Nozzle; dimensions: M8 × 10 × Ø1,6.
23500000001Article cancelled.
23634703202Sensor (120 °C).
237RNG2320037202120O-ring (EPDM); used in: Sight glass.
23836181503Sight glass; dimensions: Ø22 × 1 1/8" - 18 UNEF; from year: 06/2004.
24036191301Oil service valve; dimensions: M22×1,5.
240PLU281336611413Sealing screw; dimensions: M22×1,5 (DIN 910 - M22×1,5).
24136620117Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
24236132207Shut-off valve; dimensions: Ø10 (3/4").
243GKT2801T37220001Gasket ring; dimensions: Ø14,3 × 1,5 (PTFE); used in: Oil valve for maintenance.
24436521016Screwed nipple; dimensions: M22×1,5 × 3/4" - 16UNF; used in: Oil valve for maintenance.
245GKT01058A38240305Gasket ring; dimensions: A22 × 27 × 1,5 (aluminum DIN 7603); used in: Oil valve for maintenance.
24631403601Nozzle; dimensions: M8 × 12 × Ø1,0; used in: Capacity control.
24731400831Nozzle; dimensions: M8 × 6 × Ø1; used in: Capacity control.
24836150121Schrader valve; dimensions: 1/8" - 27 NPTF.
25034740305Liquid level limiter; dimensions: 40 × 115; used in: Oil level; from year: 11/2004.
25134740205Liquid level limiter; dimensions: 40 × 115; used in: Oil level; from year: 11/2004.
25238901902Electric connector of the device; used in: Oil level monitoring - minimum.
254GKT281437230114Gasket; dimensions: Ø45 × Ø35 × 1,0; used in: Oil level monitoring - minimum.
255BLTCMA10X030
38030632Cheese-head screw; dimensions: M10 × 30 (DIN 912 - M10 × 30 - 10.9); used in: Oil level monitoring - minimum.
25636701518Flange; dimensions: 91 × 52 × 13; used in: Oil level monitoring - minimum.
25736701501Blind flange; dimensions: 91 × 52 × 13 (LA66); used in: Oil level monitoring - minimum.
258GKT2031
37270401Gasket; dimensions: Ø31 × 1,0 (LA66); used in: Blind flange.
260GKT280037231609Gasket; dimensions: Ø328 × Ø270 × 1,0; used in: Housing cover.
26230523201Housing cover.
263BLTCMA12X040
38030645Cheese-head screw; dimensions: M12 × 40 (DIN 912 - M12 × 40 - 10.9); used in: Housing cover.
26632035406Lifting eye; dimensions: 70 × 40 × 8, Ø24 / Ø13.
26738030205Cheese-head screw; dimensions: M12 × 50 (DIN 912 - M12 × 50 - 10.9).
28031502501Hexagon head screw; dimensions: M22 × 53 (special screw).
281RNG7500737200313O-ring.
30036060913Piping.
30236601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
30336601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
31036060912Piping.
31236601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
31336601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
32036060914Piping.
32236601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
32336601702Angled screwed joint; dimensions: XWE8 - LL - 1/8" - NPT.
33036060915Piping.
33236601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
33336601701Angled screwed joint; dimensions: XWE8 - L - 1/4" - NPT.
34036060911Piping; used in: Oil filter.
34236601506Screwed pipe joint; dimensions: XGE10 - L - 1/4" - NPT (straight).
35036060924Piping.
35236601507Screwed pipe joint; dimensions: XGE8 - L - 1/8" - NPT (steel).
360BLTCMA6X025
38030652Cheese-head screw; dimensions: M6 × 25 (DIN 912 - M6 × 25 - 10.9).
36136735903Flange; dimensions: 83 × 42 × 13.
36237243702Gasket; dimensions: 83 × 42 × 2.
36338030630Cheese-head screw; dimensions: M10 × 80 (DIN 912 - M10 × 80 - 10.9).
36438390403Parallel pin; dimensions: Ø12 × 25 (with thread).
36538030624Cheese-head screw; dimensions: M10 × 40 (DIN 912 - M10 × 40 - 10.9).
36631502814Spacer screw; dimensions: M10 / M8 × 237; from year: 10/2009.
36934900517Piston rod (complete); used in: Capacity control; from year: 04/2011.
37031403203Piston rod; used in: Capacity control.
37132500065Pressure spring.
373GKT01058A38240305Gasket ring; dimensions: A22 × 27 × 1,5 (aluminum DIN 7603).
37431423901Piston; dimensions: Ø78,6 × Ø20 × 27,2 (capacity control); used in: Capacity control; from year: 06/2004.
37531210403Sliding ring; dimensions: Ø80 × 6,3; from year: 07/2004.
376RNG283437202134O-ring; from year: 07/2004.
37931101214Spacer sleeve; dimensions: Ø17,5 × Ø10,5 × 15.
38031502815Spacer screw; dimensions: M8 × 55; from year: 10/2009.
38138030638Cheese-head screw; dimensions: M10 × 45 (DIN 912 - M10 × 45 - 10.9); from year: 04/2011.
38237232501Gasket; dimensions: Ø182 × 1,5.
38330591301Cover; dimensions: Ø120 × 16; used in: Capacity regulator.
38436521017Screwed nipple; dimensions: M22×1,5 × 3/4" - 16UNF; used in: Oil filter.
38536210503Oil filter; dimensions: Ø95 × 96 × 3/4"-16 UNF.
38638034401Cheese-head screw; dimensions: M8 × 30 (ISO 4762 - M8 × 30 - 10.9); from year: 11/2007.
39038030601Cheese-head screw; dimensions: M8 × 12 (DIN 912 - M8 × 12 - 10.9); from year: 10/2009.
39132034112Fixing plate; dimensions: 2,5 × 20 × 46,5.
39236061503Piping.
40030552001Discharge flange cover.
40137293601Gasket; dimensions: 211 × 208 × 1; used in: Discharge flange cover.
40937506902Sleeve; dimensions: Ø49,8 × 20; used in: Demister; from year: 03/2002.
410FLR286536920417Demister; from year: 10/2009.
41100000001Article cancelled; from year: 10/2009.
41200000001Article cancelled; from year: 10/2009.
41338030601Cheese-head screw; dimensions: M8 × 12 (DIN 912 - M8 × 12 - 10.9); from year: 10/2009.
420RNG0517237202117O-ring.
43030051201Oil separator vessel; dimensions: Ø380 × 478.
43138030205Cheese-head screw; dimensions: M12 × 50 (DIN 912 - M12 × 50 - 10.9).
432RNG2810137202101O-ring.
43331503103Sealing screw; dimensions: M52×1,5 / M22×1,5; from year: 07/2013.
436GKT01058A38240305Gasket ring; dimensions: A22 × 27 × 1,5 (aluminum DIN 7603); from year: 07/2013.
437PLUCMA22A36611420Sealing screw; dimensions: M22×1,5 (DIN 908 - M22×1,5); from year: 07/2013.
45034706001Compressor protection device; dimensions: 68,4 × 80 × 33 (110..240 V - 50/60 Hz).
45034706002Compressor protection device; dimensions: 68,4 × 80 × 33 (24 V - 50/60 Hz).
45034706003Compressor protection device; dimensions: 68,4 × 80 × 33 (24 V - DC).
45000000007Article no longer available; from year: 12/2008.
45034705002Kit SE-i1 (115..230 V - AC).
45034701711Compressor protection device; dimensions: 68,4 × 80 × 33 (115..230 V - 50/60 Hz); from year: 03/2024.
45034701711Compressor protection device; dimensions: 68,4 × 80 × 33 (115..230 V - 50/60 Hz); from year: 03/2024.
45034705901Compressor protection device; dimensions: 68,4 × 80 × 33 (24 V - 50/60 Hz); from year: 03/2024.
45338051351Oval head screw; dimensions: M3 × 16 (ISO 7045 - M3 × 16 - 4.8).
45434590201Terminal strip; dimensions: 77 × 22 (12-pole).
45538051702Oval head screw; dimensions: M6 × 12 (DIN 7985 - M6 × 12 - A2-70); from year: 07/2014.
45632450089Terminal box; dimensions: 320 × 225 × 92 (steel).
457GKT2140137212403Gasket; dimensions: 165 × 120 × 3; used in: Aluminium terminal box.
45800000001Article cancelled; from year: 01/2024.
46134512204Hexagon nut; dimensions: M63×1,5.
46234512102Screwed cable gland; dimensions: M16×1,5; from year: 12/2010.
46334512604Plug; dimensions: M63×1,5; used in: Aluminium terminal box.
46434512201Hexagon nut; dimensions: M16×1,5.
46537502213Plug; dimensions: GPN 300/F15.
469SPGCMW8
38215201Thrust washer; dimensions: S8; from year: 03/2008.
47000000001Article cancelled; from year: 08/2013.
47131502902Earth screw; dimensions: M6 /44,8; from year: 01/2024.
47237804901Adhesive; dimensions: 16 × 16 × 0,05 (adhesive); from year: 03/2010.
47300000001Article cancelled; from year: 01/2024.
47438130105Hexagon nut; dimensions: M8 (ISO 4032 - M8 - Ms); from year: 01/2024.
47500000001Article cancelled; from year: 01/2024.
476SPGCMW8
38215201Thrust washer; dimensions: S8; from year: 01/2024.
47738130105Hexagon nut; dimensions: M8 (ISO 4032 - M8 - Ms).
47837590702Isolating foil; dimensions: 118 × 155 × 0,3; used in: Aluminium terminal box.
48038051702Oval head screw; dimensions: M6 × 12 (DIN 7985 - M6 × 12 - A2-70); from year: 07/2014.
48132490848Cover; dimensions: 329 × 234 × 14; from year: 03/2020.
48132493803Cover with heating element; dimensions: 320 × 225 × 40 (230 V - 30 W).
48132493804Cover with heating element; dimensions: 320 × 225 × 40 (115 V - 30 W).
48237242908Gasket; dimensions: 327 × 232 × 2; from year: 06/2017.
5 Shopping cart items
Shopping cart for Quotation