bitzer S4T-5.2, 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/N	OEM P/N	Description (from OEM manufacturer)
2	BRG2100	31110007	Bearing bush / Slide bearing; dimensions: Ø55 × Ø50 × 30 (Radial); used in: Motor side.
3	BRG2100	31110014	Bearing bush / Slide bearing; dimensions: Ø55 × Ø50 × 30 (Radial); used in: Crankcase side; from year: 11/1990.
4	WAS2100	32050005	Thrust washer; dimensions: Ø62 × Ø50,5 × 1,7; used in: Motor side.
5	WAS2100	32050005	Thrust washer; dimensions: Ø62 × Ø50,5 × 1,7; used in: Crankcase side.
6	CKS2103	30110550	Eccentric shaft; from year: 01/2010.
7		00000001	Article cancelled; from year: 02/1992.
8	WGH2100	30290101	Counter balance weight.
9		38005504	Hexagon head screw; dimensions: M8 × 55 (DIN 931 - M8 × 55 - 10.9).
10	SPGCMW8	38220104	Single-coil spring washer; dimensions: B8 (DIN 127).
11	WGH2101	32031301	Thrust segment.
23	GKT2036	37231403	Gasket; dimensions: Ø182 × Ø133 × 1.
24		30512502	Bearing cover; used in: complete; from year: 02/1996.
25	BRG2110	31110017	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40,7 (Radial).
26		00000011	is not required for this type !.
27	BLTCMA10X030	38030632	Cheese-head screw; dimensions: M10 × 30 (DIN 912 - M10 × 30 - 10.9); from year: 02/1996.
27	BLTCMA10X025	38015605	Hexagon head screw; dimensions: M10 × 25 (DIN 933 - M10 × 25 - 10.9); from year: 01/1996.
27		38030625	Cheese-head screw; dimensions: M10 × 50 (DIN 912 - M10 × 50 - 10.9); from year: 02/1996.
28	PMP2100	36250301	Oil pump; used in: complete.
29	RNG2019	37200119	O-ring (CR).
30		38015505	Hexagon head screw; dimensions: M8 × 20 (DIN 933 - M8 × 20 - 10.9).
31		38033901	Cheese-head screw; dimensions: M10 × 30 (ISO 4762 - M10 × 30 - 10.9); from year: 12/2018.
32		32031401	Fixing plate; dimensions: 140 × 40 × 3.
33	LCKCMG04	38200201	Washer; dimensions: A4,3 (brass DIN 125).
34		00000011	Not required for this type.
35	BLTCMA4X008T	38050751	Oval head screw; dimensions: M4 × 8 (ISO 7045 - M4 × 8 - 4.8).
36		34732033	Differential oil pressure cut-out; dimensions: 100 × 50 × 130 (115/230 V - 1 - 50/60 Hz); used in: complete; from year: 10/2001.
37		36150021	Schrader valve; dimensions: 1/8" - 27 NPTF × 7/16" - 20 UNF.
38	WAS2102	31203002	Thrust collar; dimensions: Ø65 × 7.
39	RNG2116	37200116	O-ring (CR).
40	WAS2103	31200501	Retaining ring; dimensions: Ø64 × 45 × 4,2.
41	SPG2002	32590002	Spring washer; dimensions: Ø58,5 × Ø46 × 0,5; from year: 12/1990.
42	WAS2104	31200602	Thrust collar; dimensions: Ø58 × Ø42 × 8,6; used in: Spring washer.
43		00000011	is not required for this type !.
45		38400113	Parallel key; dimensions: 12 × 8 × 50 (steel DIN 6885 - A).
48		00000011	is not required for this type !.
49		32050204	Thrust washer; dimensions: Ø54 × Ø17 × 5 (steel).
50	SPGCMW16	38215004	Thrust washer; dimensions: S16 (spring steel).
51	BLTCMA16X040	38016603	Hexagon head screw; dimensions: M16 × 40 (DIN 933 - M16 × 40 - 10.9).
52	GKT2011	37231503	Gasket; dimensions: Ø286 × Ø236 × 0,38; from year: 05/2010.
53		30520601	Housing cover.
54	BLTMYA052	38005702	Hexagon head screw; dimensions: M12 × 55 (DIN 931 - M12 × 55 - 10.9).
58	SPRCM10X12	38035801	Set screw; dimensions: M10 × 12 (DIN 916 - M10 × 12 - 10.9).
59	KEY2E110	38410105	Gib-headed key; dimensions: 5 × 5 × 36 (steel DIN 6887 - 5 × 5 × 36).
70		36612402	Sealing screw; dimensions: M22; from year: 11/2018.
71		00000001	Article cancelled; from year: 11/2018.
72	SPG2108	32500001	Pressure spring.
73	SRO2100	36200302	Oil filter; dimensions: Ø14 × 105.
74	VSG2150	36011008	Oil return system; used in: complete; from year: 09/1998.
75		36610121	Plug; dimensions: 1/4" - 18 NPTF (brass).
76	RNG2012	37200315	O-ring (CR).
77	GLS2000	36180202	Sight glass; dimensions: Ø67 × 8,5.
79	BLTCMA6X020	38015406	Hexagon head screw; dimensions: M6 × 20 (DIN 933 - M6 × 20 - 10.9).
80		36611010	Plug; dimensions: 1/2" - 14 NPTF (steel).
81	GKT2113	37241301	Gasket; dimensions: 220 × 200 × 1.
82		32030703	Bottom plate; dimensions: 220 × 200 × 12 × Ø21.
83	BLTCMA10X030	38017802	Hexagon head screw; dimensions: M10 × 30 (ISO 4017 - M10 × 30 - 10.9).
84		37000302	Kit damper elements; dimensions: Lo=42 (spring); from year: 07/1988.
84		37000201	Kit damper elements (Shore hardness 50 // elastomer).
85		32500205	Pressure spring; dimensions: 42; from year: 07/1988.
86		37000303	Kit damper elements; dimensions: Lo=46 (spring); from year: 07/1988.
86		37000201	Kit damper elements (Shore hardness 50 // elastomer).
87		32500206	Pressure spring; dimensions: 46; from year: 07/1988.
88		32730902	Foot; dimensions: 315 × 40 × 8 × Ø21.
89	BLTCMA10X025	38015605	Hexagon head screw; dimensions: M10 × 25 (DIN 933 - M10 × 25 - 10.9).
90	VSG2006	36111001	Gas equalising valve; dimensions: G1/2".
91		00000001	Article cancelled.
104	BLTCMA10X065	38005604	Hexagon head screw; dimensions: M10 × 65 (DIN 931 - M10 × 65 - 10.9).
105		38200155	Washer; dimensions: A10,5; used in: Cylinder head.
111	TER2000	34341602	Terminal plate; dimensions: 165 × 120 × 15,5; used in: complete; from year: 06/2012.
112	GKT2039	37242115	Gasket; dimensions: 163 × 118 × 1; from year: 09/2021.
113		00000007	Article no longer available.
128		34341404	Terminals complete; used in: complete.
129		00000007	Article no longer available.
130		00000007	Article no longer available.
131		00000007	Article no longer available.
132		00000007	Article no longer available.
133		00000001	Article cancelled.
134		00000001	Article cancelled.
135		00000001	Article cancelled.
136		00000007	Article no longer available.
137		34343004	Kit connection bridge.
138		38030622	Cheese-head screw; dimensions: M10 × 20 (DIN 912 - M10 × 20 - 10.9).
139	PLC201	32120201	Centring plate; dimensions: 167 × 122 × 12.
140	GKT2090	37212001	Gasket; dimensions: 133 × 117 × 2.
141	BOX2002	34350767	Terminal box; dimensions: 244 × 189 × 85 (aluminum).
142		00000001	Article cancelled; from year: 12/1993.
143	BLT23851	38050851	Oval head screw; dimensions: M5 × 20 (DIN 7985 - M5 × 20 - 4.8); used in: Aluminium terminal box; from year: 12/1993.
144		00000003	Not available separately.
145		34702804	Compressor protection device (24 V - 50/60 Hz).
145		34702805	Compressor protection device (24 V - DC).
145	SEN1011	34700401	Compressor protection device (230 V - 50/60 Hz).
145		34700402	Compressor protection device (115 V - 50/60 Hz).
145	SEN1010	34700403	Compressor protection device (230 V - 50/60 Hz).
145		34700405	Compressor protection device (115 V - 50/60 Hz).
145	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
145	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
146		38040201	Cheese-head screw; dimensions: M4 × 10 (DIN 84 - M4 × 10).
147	BLT23154	38050154	Oval head screw; dimensions: M6 × 16 (DIN 7985 - M6 × 16 - 4.8); from year: 12/1993.
150		00000011	Not required for this type; from year: 12/2010.
154		34625446	Built-in motor; dimensions: Ø223 (40P 5,5 HP).
154		34625414	Built-in motor; dimensions: Ø223 (40D 5,5 HP).
154		34625412	Built-in motor; dimensions: Ø223 (40S 5,5 HP).
156	KEY2E110	38410105	Gib-headed key; dimensions: 5 × 5 × 36 (steel DIN 6887 - 5 × 5 × 36).
157	SPRCM10X12	38035801	Set screw; dimensions: M10 × 12 (DIN 916 - M10 × 12 - 10.9); from year: 04/2001.
190		34320834	Oil heater (230 V - 1 - 50/60 Hz -100 W).
190		34320832	Oil heater (110 V - 1 - 50/60 Hz - 100 W).
190		34320831	Oil heater (24 V - 1 - 50/60 Hz - 100 W).
190		34320830	Oil heater (12 V - 1 - 50/60 Hz - 100 W).
190		34320835	Oil heater (380 V - 1 - 50/60 Hz -100 W).
191		38901902	Electric connector of the device; from year: 10/2024.
192	HTR2110	34590604	Heater sleeve; dimensions: 3/8" - 18 NPTF × 204; from year: 08/2005.
195		36150021	Schrader valve; dimensions: 1/8" - 27 NPTF × 7/16" - 20 UNF.
300		30004301	Housing (cast iron).
301	PLT2255	30401703	Valve plate; dimensions: Ø60; used in: Low pressure side.
302	GKT2160	37251012	Gasket; dimensions: 127 × 196 × 0,9 - Ø60; used in: Low pressure side.
303	GKT2141	37261102	Gasket; dimensions: 127 × 196 × 0,75; used in: Low pressure side.
304		30236029	Cylinder head; dimensions: 196 × 127 × 59; used in: Low pressure side; from year: 11/2007.
305	PLT2260	30401701	Valve plate; dimensions: Ø55; used in: High pressure side.
306	GKT2155	37251011	Gasket; dimensions: 127 × 196 × 0,9 - Ø55; used in: High pressure side.
307	GKT2142	37261103	Gasket; dimensions: 127 × 196 × 0,75; used in: High pressure side.
308		30236028	Cylinder head; dimensions: 196 × 127 × 59; used in: High pressure side; from year: 11/2007.
309	PLU2E200	36610021	Plug; dimensions: 1/8" - 27 NPTF.
310		36131013	Shut-off valve; dimensions: Ø22 (7/8").
310		36131570	Shut-off valve.
310		36701539	Blind flange (LA48).
311		36600003	Pipe connection; dimensions: Ø22 - 1 1/4" - 12 UNF (steel coppered).
312	GKT2100T	37220003	Gasket ring; dimensions: Ø25,4 × Ø22,2 × 1,5 (1 1/4-12 - PTFE).
313		36620117	Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
314	GKT1236	37270701	Gasket; dimensions: 68 × 38 × 1.
315		38034002	Cheese-head screw; dimensions: M10 × 90 (ISO 14579 - M10 × 90 - 10.9).
316		38034018	Cheese-head screw; dimensions: M10 × 25 (ISO 14579 - M10 × 25 - 10.9).
317	GKT2031	37270401	Gasket; dimensions: Ø31 × 1,0 (LA66).
318	BLTCMA10X030	38015606	Hexagon head screw; dimensions: M10 × 30 (DIN 933 - M10 × 30 - 10.9).
319		36050750	Piping.
320		37700502	Isolation.
321		36140402	Injection valve (R404A).
321		36140401	Injection valve (R404A - R507A).
321		36140408	Injection valve (R22).
322		35300207	Subcooler; dimensions: 317 × 76 × 33.
323		36182201	Sight glass; dimensions: Ø10 × 109; from year: 08/1997.
324		34710002	Solenoid valve; dimensions: Ø10 (EVR 6 230 V - 50/60 Hz); used in: Liquid subcooling.
324		34714301	Solenoid valve; dimensions: Ø10 (EVR 6).
325		36210105	Filter drier; dimensions: DML 053s - Ø10.
326		36040204	Piping.
327	SEN2000	34702303	Sensor (140 °C).
328	PRA2159	30229725	Connecting rod / piston; dimensions: Ø60; used in: Low pressure side; from year: 01/2006.
329	ROD2151	30211401	Connecting rod; dimensions: Ø70 × Ø15 × 119,5; used in: Low pressure side.
329	ROD2155	30211405	Connecting rod; dimensions: Ø70 × Ø15 × 120,5.
330	PST2162	30223219	Piston; dimensions: Ø60; used in: Low pressure side.
331	SGM2160	38230052	Piston ring; dimensions: Ø60 × 1,5 (ISO 6622); used in: Low pressure side.
332	SGM2161	38231019	Piston ring; dimensions: Ø60 × 1,5 (ISO 6622); used in: Low pressure side.
333		38340102	Wrist pin; dimensions: Ø15 × Ø10 × 40 (DIN 73126).
333	PIN2101	38340103	Wrist pin; dimensions: Ø15 × Ø10 × 52 (DIN 73126); used in: Low pressure side.
334		30229764	Connecting rod / piston; dimensions: Ø 48; used in: complete.
337	SGM2148	38230064	Piston ring; dimensions: Ø48 × 2 (ISO 6622).
338		00000011	is not required for this type !.
339	PST2161	30223331	Piston; dimensions: Ø48; used in: complete.
340	GRF2100	36131014	Shut-off valve; dimensions: Ø28 (1 1/8").
340	GRF2100	36131571	Shut-off valve; dimensions: Ø28.
340		36701539	Blind flange (LA48).
341		36600004	Pipe connection; dimensions: Ø28 - 1 1/4" - 12 UNF (steel coppered).
342	GKT2100T	37220003	Gasket ring; dimensions: Ø25,4 × Ø22,2 × 1,5 (1 1/4-12 - PTFE).
343		36620117	Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
344	SRN2102	36200111	Suction gas filter; dimensions: Ø20 × 50.
345	GKT1236	37270701	Gasket; dimensions: 68 × 38 × 1.
350	KIT2163	37281701	Gasket set.
360		38110902	Hexagon nut; dimensions: M5 (EN 1663 - M5 - 8).
406	COL234330801	34330801	Solenoid coil (230 V - 1 - 50/60 Hz).
407		38900204	Electric connector of the device.

bitzer S4T-5.2, Reciprocating compressor, Semihermetic, 4 Cylinders

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