This Clutch Slave Cylinder BORG & BECK OE Ref 21521157212 is supplied by BORG & BECK as a replacement for OEM reference 21521116300. It is intended for use in selected BMW vehicles and designed to meet original equipment fit and functional requirements.
The component is identified by manufacturer reference BES110 and EAN 5055188273192, allowing accurate part verification prior to installation. It is suitable for replacing worn, damaged, or non-functioning units where dependable operation is required.
Correct part selection is essential to ensure proper fitment and operation. Please confirm compatibility by checking the OEM reference number or using the vehicle registration lookup tool before ordering.
Compatible with selected BMW models. Detailed compatibility information is available in the Compatibility section of this page.
If this part is not suitable for your vehicle, browse alternative options in our Clutch Parts category.
e Auto Parts supplies a wide range of OE-equivalent and aftermarket vehicle components for customers across the UK and Europe. Our focus is on accurate product identification, compatibility guidance, and customer support.
320 i Rear-Wheel Drive 06/1975-08/1982, 92 kw, 1990 ccm, 125 PS, Saloon, Petrol , ENG: M10 B20
320 Rear-Wheel Drive 06/1975-07/1979, 80 kw, 1990 ccm, 109 PS, Saloon, Petrol , ENG: M10 B20
318 Rear-Wheel Drive 08/1975-08/1980, 72 kw, 1766 ccm, 98 PS, Saloon, Petrol , ENG: M10 B18 (184VA)
316 Rear-Wheel Drive 08/1975-08/1980, 66 kw, 1573 ccm, 90 PS, Saloon, Petrol , ENG: M10 B16 (164VA)
323 i Rear-Wheel Drive 01/1978-10/1982, 105 kw, 2316 ccm, 143 PS, Saloon, Petrol , ENG: M20 B23 (236EA)
320/6 Rear-Wheel Drive 08/1977-10/1982, 90 kw, 1990 ccm, 122 PS, Saloon, Petrol , ENG: M20 B20 (206VA)
318 i Rear-Wheel Drive 11/1979-08/1982, 77 kw, 1766 ccm, 105 PS, Saloon, Petrol , ENG: M10 B18 (184VA)
316 Rear-Wheel Drive 09/1980-12/1982, 66 kw, 1766 ccm, 90 PS, Saloon, Petrol , ENG: M10 B18 (184VC)
315 Rear-Wheel Drive 03/1981-03/1984, 55 kw, 1573 ccm, 75 PS, Saloon, Petrol , ENG: M10 B16 (164VB)
316 Rear-Wheel Drive 09/1983-06/1988, 66 kw, 1766 ccm, 90 PS, Saloon, Petrol , ENG: M10 B18 (184VD)
325 i X 4WD 09/1986-08/1991, 125 kw, 2494 ccm, 170 PS, Saloon, Petrol , ENG: M20 B25 (256E1), M20 B25 (256E2), M20 B25 (256EX), M20 B25 (256K1)
318 i Rear-Wheel Drive 06/1987-12/1991, 83 kw, 1796 ccm, 113 PS, Saloon, Petrol , ENG: M40 B18 (184E1)
323 i Rear-Wheel Drive 09/1983-09/1986, 110 kw, 2316 ccm, 150 PS, Saloon, Petrol , ENG: M20 B23 (236EC), M20 B23 (236EW)
324 td Rear-Wheel Drive 09/1987-08/1991, 85 kw, 2443 ccm, 115 PS, Saloon, Diesel , ENG: M21 D24 (246TB)
318 i Rear-Wheel Drive 09/1982-08/1987, 77 kw, 1766 ccm, 105 PS, Saloon, Petrol , ENG: M10 B18 (184EA), M10 B18 (184EB), M10 B18 (184EZ)
M3 2.3 Rear-Wheel Drive 02/1987-05/1989, 147 kw, 2302 ccm, 200 PS, Saloon, Petrol , ENG: S14 B23 (234EA), S14 B23 (234S2)
316 i Rear-Wheel Drive 07/1988-06/1991, 75 kw, 1596 ccm, 102 PS, Saloon, Petrol , ENG: M40 B16 (164E1)
M3 EVO II 2.5 Rear-Wheel Drive 01/1990-01/1992, 175 kw, 2467 ccm, 238 PS, Saloon, Petrol , ENG: S14 B25 (254S1)
325 e 2.7 Rear-Wheel Drive 10/1983-12/1988, 90 kw, 2693 ccm, 122 PS, Saloon, Petrol , ENG: M20 B27 (276KA), M20 B27 (276KB)
316 i Rear-Wheel Drive 09/1987-06/1991, 73 kw, 1596 ccm, 100 PS, Saloon, Petrol , ENG: M40 B16 (164E1)
320 i Rear-Wheel Drive 09/1982-12/1991, 92 kw, 1990 ccm, 125 PS, Saloon, Petrol , ENG: M20 B20 (206EB)
315 Rear-Wheel Drive 09/1982-12/1991, 55 kw, 1573 ccm, 75 PS, Saloon, Petrol , ENG: M10 B16 (16A)
325 i Rear-Wheel Drive 12/1986-06/1991, 125 kw, 2494 ccm, 170 PS, Saloon, Petrol , ENG: M20 B25 (256E1), M20 B25 (256E2), M20 B25 (256EX), M20 B25 (256K1)
M3 EVO I 2.3 Rear-Wheel Drive 10/1988-10/1990, 162 kw, 2302 ccm, 220 PS, Saloon, Petrol , ENG: S14 B23 (234EA)
318 is Rear-Wheel Drive 09/1989-08/1991, 100 kw, 1796 ccm, 136 PS, Saloon, Petrol , ENG: M42 B18 (184S1)
M3 2.3 Rear-Wheel Drive 01/1986-12/1990, 158 kw, 2302 ccm, 215 PS, Saloon, Petrol , ENG: S14 B23 (234EA), S14 B23 (234S2)
318 i Rear-Wheel Drive 09/1987-06/1991, 85 kw, 1796 ccm, 115 PS, Saloon, Petrol , ENG: M40 B18 (184E1)
323 i Rear-Wheel Drive 09/1982-08/1983, 102 kw, 2316 ccm, 139 PS, Saloon, Petrol , ENG: M20 B23 (236EB)
325 e 2.7 Rear-Wheel Drive 01/1985-08/1987, 95 kw, 2693 ccm, 129 PS, Saloon, Petrol , ENG: M20 B27 (276KB)
318 i Rear-Wheel Drive 12/1984-08/1988, 75 kw, 1766 ccm, 102 PS, Saloon, Petrol , ENG: M10 B18 (184KA)
M3 2.3 Rear-Wheel Drive 07/1986-06/1991, 143 kw, 2302 ccm, 195 PS, Saloon, Petrol , ENG: S14 B23 (234EA), S14 B23 (234S1), S14 B23 (234S2)
316 i Rear-Wheel Drive 08/1987-08/1988, 75 kw, 1766 ccm, 102 PS, Saloon, Petrol , ENG: M10 B18 (184KA)
325 i Rear-Wheel Drive 09/1983-11/1989, 126 kw, 2494 ccm, 171 PS, Saloon, Petrol , ENG: M20 B25 (256E1), M20 B25 (256E2)
316 (Ecotronic) Rear-Wheel Drive 09/1983-06/1988, 66 kw, 1766 ccm, 90 PS, Saloon, Petrol , ENG: M10 B18 (184VD)
320 i Rear-Wheel Drive 10/1986-04/1991, 95 kw, 1990 ccm, 129 PS, Saloon, Petrol , ENG: M20 B20 (206KA)
325 i Rear-Wheel Drive 08/1987-11/1993, 125 kw, 2494 ccm, 170 PS, Convertible, Petrol , ENG: M20 B25 (256E2), M20 B25 (256EX), M20 B25 (256K1)
318 i Rear-Wheel Drive 09/1990-10/1993, 83 kw, 1796 ccm, 113 PS, Convertible, Petrol , ENG: M40 B18 (184E1)
320 i Rear-Wheel Drive 07/1987-10/1993, 93 kw, 1990 ccm, 126 PS, Convertible, Petrol , ENG: M20 B20 (206KA)
M3 2.3 Rear-Wheel Drive 06/1988-06/1991, 143 kw, 2302 ccm, 195 PS, Convertible, Petrol , ENG: S14 B23 (234EA)
325 i Rear-Wheel Drive 12/1985-12/1987, 126 kw, 2494 ccm, 171 PS, Convertible, Petrol , ENG: M20 B25 (256E1), M20 B25 (256E2)
320 i Rear-Wheel Drive 05/1986-11/1993, 95 kw, 1990 ccm, 129 PS, Convertible, Petrol , ENG: M20 B20 (206KA)
320 i Rear-Wheel Drive 01/1988-12/1991, 95 kw, 1991 ccm, 129 PS, Estate, Petrol , ENG: M20 B20 (206KA)
316 i Rear-Wheel Drive 09/1991-06/1994, 75 kw, 1596 ccm, 102 PS, Estate, Petrol , ENG: M40 B16 (164E1)
324 td Rear-Wheel Drive 01/1988-06/1993, 85 kw, 2443 ccm, 115 PS, Estate, Diesel , ENG: M21 D24 (246TB)
325 i Rear-Wheel Drive 07/1987-03/1993, 125 kw, 2494 ccm, 170 PS, Estate, Petrol , ENG: M20 B25 (256K1)
318 i Rear-Wheel Drive 04/1989-06/1994, 83 kw, 1796 ccm, 113 PS, Estate, Petrol , ENG: M40 B18 (184E1)
318 i Rear-Wheel Drive 09/1987-06/1991, 85 kw, 1796 ccm, 115 PS, Estate, Petrol , ENG: M40 B18 (184E1)
316 i Rear-Wheel Drive 09/1991-06/1994, 73 kw, 1596 ccm, 100 PS, Estate, Petrol , ENG: M40 B16 (164E1)
325 i X 4WD 06/1988-10/1993, 125 kw, 2494 ccm, 170 PS, Estate, Petrol , ENG: M20 B25 (256K1)
528 Rear-Wheel Drive 01/1975-08/1976, 121 kw, 2788 ccm, 165 PS, Saloon, Petrol , ENG: M30 B28
518 i Rear-Wheel Drive 06/1979-06/1981, 75 kw, 1766 ccm, 102 PS, Saloon, Petrol , ENG: M10 B18 (184EB)
525 Rear-Wheel Drive 10/1973-08/1976, 107 kw, 2494 ccm, 145 PS, Saloon, Petrol , ENG: M30 B25 A
520 i Rear-Wheel Drive 03/1972-07/1979, 92 kw, 1990 ccm, 125 PS, Saloon, Petrol , ENG: M10 B20
520 Rear-Wheel Drive 06/1972-01/1979, 85 kw, 1990 ccm, 115 PS, Saloon, Petrol , ENG: M10 B20
528 i Rear-Wheel Drive 08/1979-06/1981, 135 kw, 2788 ccm, 184 PS, Saloon, Petrol , ENG: M30 B28
M535 i Rear-Wheel Drive 04/1980-05/1981, 160 kw, 3453 ccm, 218 PS, Saloon, Petrol , ENG: M30 B35 (356EA)
528 Rear-Wheel Drive 08/1975-07/1977, 125 kw, 2788 ccm, 170 PS, Saloon, Petrol , ENG: M30 B28
525 Rear-Wheel Drive 08/1975-06/1981, 110 kw, 2494 ccm, 150 PS, Saloon, Petrol , ENG: M30 B25 (256VA)
520/6 Rear-Wheel Drive 03/1977-06/1981, 90 kw, 1990 ccm, 122 PS, Saloon, Petrol , ENG: M20 B20 (206VA)
520 i Rear-Wheel Drive 08/1972-10/1975, 96 kw, 1990 ccm, 131 PS, Saloon, Petrol , ENG: M10 B20
518 Rear-Wheel Drive 07/1974-05/1981, 66 kw, 1766 ccm, 90 PS, Saloon, Petrol , ENG: M10 B18 (184VB)
528 i Rear-Wheel Drive 03/1977-09/1979, 130 kw, 2788 ccm, 177 PS, Saloon, Petrol , ENG: M30 B28
535 i Rear-Wheel Drive 01/1985-12/1987, 162 kw, 3430 ccm, 220 PS, Saloon, Petrol , ENG: M30 B34 (346EC)
520 i Rear-Wheel Drive 06/1981-12/1987, 92 kw, 1990 ccm, 125 PS, Saloon, Petrol , ENG: M20 B20 (206EA), M20 B20 (206EB), M20 B20 (206EC), M20 B20 (206EZ)
535 i, M 535 i Rear-Wheel Drive 01/1985-12/1987, 136 kw, 3430 ccm, 185 PS, Saloon, Petrol , ENG: M30 B34 (346KA)
518 Rear-Wheel Drive 06/1981-09/1984, 66 kw, 1766 ccm, 90 PS, Saloon, Petrol , ENG: M10 B18 (184VC), M10 B18 (184VD)
525 e Rear-Wheel Drive 09/1985-12/1987, 95 kw, 2693 ccm, 129 PS, Saloon, Petrol , ENG: M20 B27 (276EB), M20 B27 (276KB)
525 i Rear-Wheel Drive 06/1981-12/1987, 110 kw, 2494 ccm, 150 PS, Saloon, Petrol , ENG: M30 B25 (256EA)
520 i Rear-Wheel Drive 08/1985-12/1987, 95 kw, 1990 ccm, 129 PS, Saloon, Petrol , ENG: M20 B20 (206KA)
535 i, M 535 i Rear-Wheel Drive 01/1985-12/1987, 141 kw, 3430 ccm, 192 PS, Saloon, Petrol , ENG: M30 B34 (346KA)
518 i Rear-Wheel Drive 05/1981-12/1987, 77 kw, 1766 ccm, 105 PS, Saloon, Petrol , ENG: M10 B18 (184EB)
528 i Rear-Wheel Drive 06/1981-12/1987, 135 kw, 2788 ccm, 184 PS, Saloon, Petrol , ENG: M30 B28 (286EA)
525 e Rear-Wheel Drive 09/1981-12/1987, 90 kw, 2693 ccm, 122 PS, Saloon, Petrol , ENG: M20 B27 (276KA), M20 B27 (276KB)
M5 Rear-Wheel Drive 08/1985-12/1987, 210 kw, 3453 ccm, 286 PS, Saloon, Petrol , ENG: S38 B35 (356ED)
524 td Rear-Wheel Drive 09/1983-12/1987, 85 kw, 2443 ccm, 115 PS, Saloon, Diesel , ENG: M21 D24 (246TA)
M 635 CSi Rear-Wheel Drive 04/1986-02/1989, 191 kw, 3453 ccm, 260 PS, Coupe, Petrol , ENG: S38 B35 (356ED)
630 CS Rear-Wheel Drive 04/1976-08/1979, 135 kw, 2986 ccm, 184 PS, Coupe, Petrol , ENG: M30 B30
M 635 CSi Rear-Wheel Drive 04/1984-12/1988, 210 kw, 3453 ccm, 286 PS, Coupe, Petrol , ENG: M88 B35 (356ED), S38 B35 AF
633 CSi Rear-Wheel Drive 10/1975-12/1981, 147 kw, 3210 ccm, 200 PS, Coupe, Petrol , ENG: M30 B32
628 CSi Rear-Wheel Drive 09/1979-08/1987, 135 kw, 2788 ccm, 184 PS, Coupe, Petrol , ENG: M30 B28
635 CSi Rear-Wheel Drive 12/1984-12/1986, 136 kw, 3430 ccm, 185 PS, Coupe, Petrol , ENG: M30 B34 (346KA)
635 CSi Rear-Wheel Drive 12/1977-04/1989, 141 kw, 3430 ccm, 192 PS, Coupe, Petrol , ENG: M30 B34 (346EC), M30 B34 (346KA), M30 B34 (346KB)
635 CSi Rear-Wheel Drive 07/1987-04/1989, 155 kw, 3430 ccm, 211 PS, Coupe, Petrol , ENG: M30 B34 (346KB)
633 CSi Rear-Wheel Drive 09/1978-08/1984, 145 kw, 3210 ccm, 197 PS, Coupe, Petrol , ENG: M30 B32
635 CSi Rear-Wheel Drive 06/1978-04/1982, 160 kw, 3453 ccm, 218 PS, Coupe, Petrol , ENG: M30 B35 (346EC), M30 B35 (L-Jetronic,10:1), M30 B35 (Motronic,10:1)
630 CS Rear-Wheel Drive 04/1976-08/1979, 136 kw, 2986 ccm, 185 PS, Coupe, Petrol , ENG: M30 B30
2.5 Rear-Wheel Drive 06/1988-06/1991, 125 kw, 2494 ccm, 170 PS, Convertible, Petrol , ENG: M20 B25 (256K1)



