bitzer 4FTC-20K, 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)
1	KIT29008	37285008	Gasket set; from year: 04/2013.
2	BRG23100	31113503	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial).
3	BRG23100	31113503	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial).
4	WAS24100	32050011	Thrust washer; dimensions: Ø66 × Ø48 × 1,5; from year: 07/2013.
5	WAS24100	32050011	Thrust washer; dimensions: Ø66 × Ø48 × 1,5; from year: 07/2013.
6		30111851	Eccentric shaft.
7	KEY23110	38400116	Parallel key; dimensions: 12 × 8 × 80 (steel DIN 6885 - A).
9		30229809	Connecting rod / piston; dimensions: Ø50.
11		30215405	Connecting rod; dimensions: Ø70 × Ø16 × 90.
12		30270028	Piston complete; dimensions: Ø50.
19	SGM23230	38230095	Piston ring; dimensions: Ø50 × 1,5 (ISO 6622).
20	SGM29020	38231021	Piston ring; dimensions: Ø50 × 1,5 (ISO 6622).
21	SGM29021	38231205	Piston ring; dimensions: Ø50 × 1,5 (ISO 6623).
22		30514403	Bearing cover.
22		30514404	Bearing cover.
22		30514405	Bearing cover.
22		30514406	Bearing cover.
24	GKT24000	37233910	Gasket; dimensions: 275 × 275 × 0,4; from year: 09/2019.
26	GKT23003C	38240131	Gasket ring; dimensions: A10 × 16 × 2 (copper).
27		38022811	Hexagon head screw; dimensions: M10 × 40 (ISO 4017 - M10 × 40 - 10.9); from year: 03/2023.
29	GKT23006A	38240301	Gasket ring; dimensions: A20 × 24 × 1,5 (aluminum DIN 7603).
29	GKT23000T	37220010	Gasket ring; dimensions: Ø31,9 × 1,6 × 1,8 (PTFE); from year: 08/2011.
30	PLUCMA20A	38091003	Sealing screw; dimensions: M20×1,5 (DIN 908 - M20×1,5).
30		36181553	Sight glass; dimensions: Ø22 × 1 1/8" - 18 UNEF.
32	BRG23100	31113503	Bearing bush / Slide bearing; dimensions: Ø50 × Ø45 × 40 (Radial).
36		30297701	Counter balance weight.
39	WAS23111	31100402	Spacer sleeve; dimensions: Ø60 × Ø42,1 × 30,6.
40	MTR2020	34629446	Built-in motor; dimensions: Ø223 (40P 20 HP).
42	SPRCM10X12	38035801	Set screw; dimensions: M10 × 12 (DIN 916 - M10 × 12 - 10.9).
43	KEY2E110	38410105	Gib-headed key; dimensions: 5 × 5 × 36 (steel DIN 6887 - 5 × 5 × 36).
44		32110507	Oil splasher plate; dimensions: Ø212 × 48,5.
45		38034401	Cheese-head screw; dimensions: M8 × 30 (ISO 4762 - M8 × 30 - 10.9).
46		31800002	Cheese-head screw; dimensions: M8 × 16 (ISO 4762 - M8 × 16 - 10.9).
47		38215205	Washer; dimensions: Ø 13 × Ø 8,4.
54		30297601	Counter balance weight.
55	GKT41801A	38200105	Washer; dimensions: A17 (spring steel DIN 125).
56	BLTCMA16X040	38016603	Hexagon head screw; dimensions: M16 × 40 (DIN 933 - M16 × 40 - 10.9).
60		34731602	Prism unit; dimensions: M20×1,5 (140 bar).
80		34733407	Opto-electronic unit (OLC-K1 230 V - 50/60 Hz).
90	GKT2039	37242203	Gasket; dimensions: 165 × 120 × 0,488.
91		00000003	Not available separately.
94		00000001	Article cancelled; from year: 03/2013.
95		38033901	Cheese-head screw; dimensions: M10 × 30 (ISO 4762 - M10 × 30 - 10.9); from year: 12/2018.
96		34550704	Terminal plate; dimensions: 165 × 120 × 14,5; from year: 03/2013.
100		36150128	Schrader valve; dimensions: 1/4" - 18 NPTF.
101		36610121	Plug; dimensions: 1/4" - 18 NPTF (brass).
102	PLU2E200	36610021	Plug; dimensions: 1/8" - 27 NPTF.
105	PLU2813	36611413	Sealing screw; dimensions: M22×1,5 (DIN 910 - M22×1,5).
106		32050905	Gasket ring; dimensions: Ø22 × Ø27 (DIN 7603).
110	TLT2901	38090213	Eye bolt; dimensions: M10 (DIN 580 - M10); from year: 12/2019.
120		36131554	Shut-off valve; dimensions: Ø28.
120		36131576	Shut-off valve; dimensions: Ø28; from year: 12/2023.
121		36620602	Protective cap; dimensions: M24×2 (aluminum); from year: 04/2016.
130	GKT2002	37270405	Gasket; dimensions: ØI 34,5 × 1,0 (LA66).
131	GKT2002	37270405	Gasket; dimensions: ØI 34,5 × 1,0 (LA66).
132	BLTCMA10X030	38034006	Cheese-head screw; dimensions: M10 × 30 (ISO 14579 - M10 × 30 - 8.8); from year: 04/2019.
133		38034020	Cheese-head screw; dimensions: M10 × 35 (ISO 14579 - M10 × 35 - 8.8).
150		36136718	Shut-off valve; dimensions: Ø19.
150		36136732	Shut-off valve; dimensions: Ø28.
150		36136733	Shut-off valve; dimensions: Ø22.
150		36136719	Shut-off valve; dimensions: Ø18.
150		36136721	Shut-off valve; dimensions: Ø16.
150		36136723	Shut-off valve; dimensions: Ø22.
151		36620650	Protective cap; dimensions: 3/4" - 16 UNF (aluminum).
151		36620117	Protective cap; dimensions: 3/4" - 16 UNF / L=43 (plastic - GRP).
153		31204703	Clamping ring set; dimensions: Ø18.
154		36630016	Union nut; dimensions: Ø18.
158	GKT24302	37295302	Gasket; dimensions: 75 × 75 × Ø32 × 0,3; from year: 02/2011.
159		38034020	Cheese-head screw; dimensions: M10 × 35 (ISO 14579 - M10 × 35 - 8.8).
160	PLT29213	30406213	Valve plate; dimensions: Ø50; from year: 04/2013.
161	GKT24308	37236308	Gasket; dimensions: 185 × 125 × 0,48; from year: 05/2021.
162	GKT24104	37234104	Gasket; dimensions: 191 × 115 × 0,4.
164		30236042	Cylinder head; dimensions: 191 × 115 × 43; from year: 04/2013.
165		38001910	Hexagon head screw; dimensions: M10 × 65 (ISO 4014 - M10 × 65 - 10.9).
166		00000001	Article cancelled.
171	PLU2813	36611413	Sealing screw; dimensions: M22×1,5 (DIN 910 - M22×1,5).
172		32050905	Gasket ring; dimensions: Ø22 × Ø27 (DIN 7603).
173	VSG29407	36111407	Pressure relief valve; dimensions: M22×1,5 (90 bar); from year: 06/2009.
174		36620112	Protective cap; dimensions: Ø30 × 41.
175	VSG29406	36111406	Pressure relief valve; dimensions: M24×1,5 (148 bar); from year: 06/2009.
176	GKT2904A	32050904	Gasket ring; dimensions: Ø24 × Ø29 (DIN 7603).
177		36620112	Protective cap; dimensions: Ø30 × 41.
190	HTR23100	34321904	Oil heater (200..260 V -140 W).
190		34321903	Oil heater (100..140 V - 140 W).
200		37000503	Kit damper elements.
237	GKT23000T	37220010	Gasket ring; dimensions: Ø31,9 × 1,6 × 1,8 (PTFE); from year: 08/2011.
238		36181510	Sight glass; dimensions: Ø22 × 1 1/8" - 18 UNEF.
240	GKT24000	37233910	Gasket; dimensions: 275 × 275 × 0,4; from year: 09/2019.
241		36201003	Suction gas filter; dimensions: Ø30 × 42.
242		30523812	Housing cover; from year: 04/2013.
243		38001911	Hexagon head screw; dimensions: M10 × 70 (ISO 4014 - M10 × 70 - 10.9).
470	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
470	SEN2101	34703504	Compressor protection device (110/230 V - 50/60Hz); from year: 06/2021.
470		34702804	Compressor protection device (24 V - 50/60 Hz).
470		34702805	Compressor protection device (24 V - DC).
472		38040206	Cheese-head screw; dimensions: M4 × 16 (DIN 84 - M4 × 16).
473	BLT23154	38050154	Oval head screw; dimensions: M6 × 16 (DIN 7985 - M6 × 16 - 4.8).
475	NUTVT001	38130106	Hexagon nut; dimensions: M10 (ISO 4032 - M10 - Ms).
476		31101801	Spacer sleeve; dimensions: Ø14 × Ø6,3 × 21,4.
477		34595001	Recommendation sign; dimensions: M6.
478		38215002	Thrust washer; dimensions: Ø16.
479	WASCMM10	38200204	Washer; dimensions: 10,5 (brass DIN 125).
480	BLT23851	38050851	Oval head screw; dimensions: M5 × 20 (DIN 7985 - M5 × 20 - 4.8); used in: Aluminium terminal box.
480		38093604	Screw; dimensions: BM4 × 24; used in: Plastic junction box.
484		34352101	Terminal box; dimensions: 244 x 189 x 85 (plastic IP66).

bitzer 4FTC-20K, Reciprocating compressor, Semihermetic, 4 Cylinders

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