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Alternator, Alternator regulator, Pulley 12311721921
An OEM number is a unique code containing letters and digits.
Car manufacturers use them to mark every part inside their cars.
A non-original car part carrying an OEM number demonstrates that the part meets stringent car manufacturer standards and its parameters and technical specifications are identical to original equipment.
All spare parts in the list below are equivalent to OEM number 12 31 1 721 921:
- 12 31 1 721 921 (original number of BMW)
- 12 31 1 721 921 (original number of MINI)
Alternator, Alternator regulator, Pulley OEM 12 31 1 721 921: Cost and Alternatives
| Price | £ 2 - 481 |
| OEM Brand | AD KÜHNER, ALANKO, AUTOELECTRO, BOSCH, BTS TURBO, BV PSH |
| Car maker | BMW, MINI, BMW (BRILLIANCE) |
| OEM 12311721921 Equivalents | 12311721921, 12 31 1 721 921, 12-31-1-721-921, 1231 1 721 921 |
46 items
Alternator AUTOELECTRO 12 31 1 721 92112V, 65A, B+, D+
Article number: AEA1290
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- Alternator Charging Current [A]: 65
- Voltage [V]: 12
- Pulleys: with V-ribbed belt pulley
- Number of ribs: 1
- Plug Type ID: B+, D+
- Number of mounting bores: 3
- Plug Type: Ring Connector
- Item number: AEA1290
- Our price: £334.00
- Manufacturer: AUTOELECTRO
- EAN number: 5056348600698
- Condition: New
- Reference number OEM: 12311721921
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In stock (Item(s) left: 3)
£334.00
price incl. 20% VAT
A core charge of £62.66 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Pulley, alternator HC-Cargo 12 31 1 721 921
Article number: 131200
Reviews - 1
- Width [mm]: 49,0
- Diameter [mm]: 67,0
- Pulleys: with belt pulley
- Depth [mm]: 31,00
- Number of grooves: 1
- Item number: 131200
- Our price: £10.99
- Manufacturer: HC-Cargo
- EAN number: 2248198950915
- Condition: New
- Reference number OEM: 12311721921
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Pulley, alternator HC-Cargo 12 31 1 721 921
Article number: F 032 131 200
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- Width [mm]: 49,0
- Diameter [mm]: 67,0
- Depth [mm]: 31,00
- Number of grooves: 1
- Item number: F 032 131 200
- Our price: £11.49
- Manufacturer: HC-Cargo
- EAN number: 5705541084117
- Condition: New
- Reference number OEM: 12311721921
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Bearing HC-Cargo 12 31 1 721 92135,00 mm x 32,00 mm x 15,00 mm
Article number: 131828
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- Height [mm]: 15,00
- Inner Diameter [mm]: 32,00
- Diameter [mm]: 35,00
- Item number: 131828
- Our price: £1.59
- Manufacturer: HC-Cargo
- EAN number: 224819170700561707005
- Condition: New
- Reference number OEM: 12311721921
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Bearing HC-Cargo 12 31 1 721 92147,0 mm x 17,00 mm
Article number: 333119
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- Inner Diameter [mm]: 17,00
- Diameter [mm]: 47,0
- Item number: 333119
- Our price: £4.59
- Manufacturer: HC-Cargo
- EAN number: 2248199579576
- Condition: New
- Reference number OEM: 12311721921
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Drive Bearing, alternator HC-Cargo 12 31 1 721 92147,0 mm x 17,00 mm
Article number: F 032 333 119
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- Inner Diameter [mm]: 17,00
- Diameter [mm]: 47,0
- Item number: F 032 333 119
- Our price: £4.59
- Manufacturer: HC-Cargo
- EAN number: 5711343131188
- Condition: New
- Reference number OEM: 12311721921
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Alternator ROTOVIS Automotive Electrics 12 31 1 721 92114V, 80A, li 60, Ø 70 mm
Article number: 9036770
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Belt Pulley Ø [mm]: 70
- Position / Degree: li 60
- Fastening Type: Double Pivot Lever
- Item number: 9036770
- Our price: £115.99
- Manufacturer: ROTOVIS Automotive Electrics
- EAN number: 4011930367701
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator DELCO REMY 12 31 1 721 92112V, 80A, Plug381, Ø 71,5 mm, with integrated regulator, Remy Remanufactured
Article number: DRA6770
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Pulleys: with belt pulley
- Supplementary Info: Remy Remanufactured
- Belt Pulley Ø [mm]: 71,5
- Number of ribs: 1
- Plug Type ID: Plug381
- Supplementary Article / Supplementary Info: with integrated regulator
- Weight [kg]: 5
- Used part return required
- Similar to picture
- Item number: DRA6770
- Our price: £122.99
- Manufacturer: DELCO REMY
- EAN number: 5414352265461
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Сurrently out of stock
£122.99
price incl. 20% VAT
A core charge of £35.88 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator BV PSH 12 31 1 721 92112V, 80A, M8 B+
Article number: 215.017.080.210
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Number of grooves: 1
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: M8 B+
- Quality: Bosch New
- Mounting Angle [degrees]: -60
- Item number: 215.017.080.210
- Our price: £134.99
- Manufacturer: BV PSH
- EAN number: 8720264060696
- Condition: New
- Reference number OEM: 12311721921
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Alternator HERTH+BUSS ELPARTS 12 31 1 721 92114V, 80A, li 60, Ø 70 mm
Article number: 32036770
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 70
- Position / Degree: li 60
- Used part return not required
- Item number: 32036770
- Our price: £149.49
- Manufacturer: HERTH+BUSS ELPARTS
- EAN number: 4026736104733
- Condition: New
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
-54%
compared to
RRP £329.15
£149.49
price incl. 20% VAT
Alternator EUROTEC 12 31 1 721 92114V, 80A, Ø 70 mm
Article number: 12036770
Reviews - 1
- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Pulleys: for v-belt pulley
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Item number: 12036770
- Our price: £162.49
- Manufacturer: EUROTEC
- EAN number: 4250294715777
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
-54%
compared to
RRP £358.88
£162.49
price incl. 20% VAT
Alternator ELSTOCK 12 31 1 721 92112V, 90A, M8, 0244, Ø 67 mm
Article number: 28-2950
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- Alternator Charging Current [A]: 90
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 67
- Number of ribs: 1
- Plug Type ID: 0244
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: M8
- Bore Diameter 1 [mm]: 8
- Length 3 [mm]: 80,0
- Length [mm]: 126,0
- Net weight [kg]: 6,1
- Length 4 [mm]: 16,0
- Item number: 28-2950
- Our price: £181.99
- Manufacturer: ELSTOCK
- EAN number: 5704651031196
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£181.99
price incl. 20% VAT
A core charge of £52.11 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator SNRA 12 31 1 721 92112V, 80A, with integrated regulator
Article number: BM8040
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Pulleys: with belt pulley
- Number of ribs: 1
- Supplementary Article / Supplementary Info: with integrated regulator
- Rotation Direction: Clockwise rotation
- Connector / Clamp: without connection for speed sensor
- Diameter [mm]: 70
- Technical Information Number: C04
- Item number: BM8040
- Our price: £186.99
- Manufacturer: SNRA
- EAN number: 3660089294676
- Condition: New
- Reference number OEM: 12311721921
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Alternator ALANKO 12 31 1 721 92112V, 80A, B+(M8),D+(M6), B+(M8)/D+(M6), Ø 70 mm
Article number: 11442557
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Pulleys: with belt pulley, for v-belt pulley
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Plug Type ID: B+(M8),D+(M6), B+(M8) / D+(M6)
- Exchange Part
- Rotation Direction: Clockwise rotation
- Quantity Unit: Piece
- Item number: 11442557
- Our price: £194.99
- Manufacturer: ALANKO
- EAN number: 4053082243618
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator RIDEX REMAN 12 31 1 721 92114V, 80A, li 60, Ø 70 mm
Article number: 4G1546R
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Belt Pulley Ø [mm]: 70
- Position / Degree: li 60
- Fastening Type: Double Pivot Lever
- Item number: 4G1546R
- Our price: £199.99
- Manufacturer: RIDEX REMAN
- EAN number: 4067448170395
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator ALANKO 12 31 1 721 92112V, 80A, Ø 56 mm
Article number: 11443230
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 56
- Number of ribs: 1
- Exchange Part
- Rotation Direction: Clockwise rotation
- Quantity Unit: Piece
- Item number: 11443230
- Our price: £208.50
- Manufacturer: ALANKO
- EAN number: 4053082253105
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator LUCAS 12 31 1 721 92112V, 90A, M8, 0244, Ø 67 mm
Article number: LRA02733
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- Alternator Charging Current [A]: 90
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 67
- Number of ribs: 1
- Plug Type ID: 0244
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: M8
- Bore Diameter 1 [mm]: 8
- Length 3 [mm]: 80,0
- Net weight [kg]: 6,1
- Length 4 [mm]: 16,0
- Item number: LRA02733
- Our price: £212.50
- Manufacturer: LUCAS
- EAN number: 5708279075983
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Сurrently out of stock
£212.50
price incl. 20% VAT
A core charge of £26.11 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator CEVAM 12 31 1 721 92114V, 80A, B+ M8, D+ M6, Ø 64 mm
Article number: 4416
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Pulleys: for v-belt pulley
- Belt Pulley Ø [mm]: 64
- Number of ribs: 1
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: B+ M8, D+ M6
- Item number: 4416
- Our price: £238.00
- Manufacturer: CEVAM
- EAN number: 3521750044160
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator SANDO 12 31 1 721 92112V, 85A, CPA0094, with integrated regulator
Article number: 2010135.2
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- Alternator Charging Current [A]: 85
- Voltage [V]: 12
- Manufacturer Restriction: BOSCH
- Pulleys: with belt pulley
- Plug Type ID: CPA0094
- Exchange Part
- Supplementary Article / Supplementary Info: with integrated regulator
- Number of mounting bores: 3
- Manufacturer: BMW
- Item number: 2010135.2
- Our price: £241.00
- Manufacturer: SANDO
- EAN number: 2245929175010
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£241.00
price incl. 20% VAT
A core charge of £83.55 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator DRI 12 31 1 721 92112V, 90A, M8, 0244, Ø 67 mm
Article number: 215120902
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- Alternator Charging Current [A]: 90
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 67
- Number of ribs: 1
- Plug Type ID: 0244
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: M8
- Bore Diameter 1 [mm]: 8
- Length 3 [mm]: 80,0
- Length [mm]: 126,0
- Net weight [kg]: 6,1
- Length 4 [mm]: 16,0
- Item number: 215120902
- Our price: £242.00
- Manufacturer: DRI
- EAN number: 5708114004635
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£242.00
price incl. 20% VAT
A core charge of £42.76 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator QUINTON HAZELL 12 31 1 721 92114V, 80A, Ø 70 mm
Article number: QRA1196
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Belt Pulley Ø [mm]: 70
- Fastening Type: Double Pivot Lever
- Item number: QRA1196
- Our price: £278.50
- Manufacturer: QUINTON HAZELL
- EAN number: 5050438397895
- Condition: New
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
-72%
compared to
RRP £1,024.86
£278.50
price incl. 20% VAT
Alternator MAGNETI MARELLI 12 31 1 721 92114V, 80A, li 60, Ø 70 mm
Article number: 944390367700
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Position / Degree: li 60
- Fastening Type: Double Pivot Lever
- Item number: 944390367700
- Our price: £288.50
- Manufacturer: MAGNETI MARELLI
- EAN number: 8001063534602
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Alternator BOSCH 12 31 1 721 92114V, 80A
Article number: 0 986 036 770
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Exchange Part
- Recommended additional repairs: V-Belt / V-Ribbed Belt
- Item number: 0 986 036 770
- Our price: £306.50
- Manufacturer: BOSCH
- EAN number: 3165141047226
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£306.50
price incl. 20% VAT
A core charge of £26.11 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Sample photo only
Alternator BTS TURBO 12 31 1 721 92112V, 80A
Article number: L610741
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Item number: L610741
- Our price: £308.00
- Manufacturer: BTS TURBO
- EAN number: 4250524567817
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£308.00
price incl. 20% VAT
A core charge of £78.33 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator VEMO 12 31 1 721 92114V, 80A
Article number: V20-13-36770
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- Alternator Charging Current [A]: 80
- Voltage [V]: 14
- Product line: Q+, original equipment manufacturer quality
- New Part
- Weight [kg]: 5,876
- New part without deposit
- Packaging width [cm]: 23,5
- Packaging height [cm]: 22
- Item number: V20-13-36770
- Our price: £380.50
- Manufacturer: VEMO
- EAN number: 4046001309625
- Condition: New
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
-26%
compared to
RRP £519.85
£380.50
price incl. 20% VAT
Alternator ALANKO 12 31 1 721 92112V, 200A, B+(M8),COM,DFM, B+(M8)/COM/DFM, Ø 56 mm
Article number: 10443740
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- Alternator Charging Current [A]: 200
- Voltage [V]: 12
- Pulleys: with freewheel belt pulley
- Belt Pulley Ø [mm]: 56
- Number of ribs: 7
- Plug Type ID: B+(M8),COM,DFM, B+(M8) / COM / DFM
- Rotation Direction: Clockwise rotation
- New Part
- Quantity Unit: Piece
- Item number: 10443740
- Our price: £405.50
- Manufacturer: ALANKO
- EAN number: 4053082261759
- Condition: New
- Reference number OEM: 12311721921
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Alternator HELLA 12 31 1 721 92114V, 90A, Ø 71 mm
Article number: 8EL 732 713-001
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- Alternator Charging Current [A]: 90
- Voltage [V]: 14
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 71
- Number of ribs: 1
- Exchange Part
- Item number: 8EL 732 713-001
- Our price: £442.00
- Manufacturer: HELLA
- EAN number: 4082300077049
- Condition: New
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£442.00
price incl. 20% VAT
A core charge of £52.22 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Alternator AD KÜHNER 12 31 1 721 92112V, 90A
Article number: 301041RIR
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- Alternator Charging Current [A]: 90
- Voltage [V]: 12
- Number of grooves: 1
- Diameter [mm]: 71
- Version: 301041RIR
- Item number: 301041RIR
- Our price: £458.50
- Manufacturer: AD KÜHNER
- EAN number: 805622419517
- Condition: Remanufactured
- Reference number OEM: 12311721921
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Free delivery on this item
Сurrently out of stock
£458.50
price incl. 20% VAT
A core charge of £93.99 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
Sample photo only
Alternator ALANKO 12 31 1 721 92112V, 80A, Ø 56 mm
Article number: 10443230
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- Alternator Charging Current [A]: 80
- Voltage [V]: 12
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 56
- Number of ribs: 1
- Rotation Direction: Clockwise rotation
- New Part
- Quantity Unit: Piece
- Item number: 10443230
- Our price: £471.00
- Manufacturer: ALANKO
- EAN number: 4053082407713
- Condition: New
- Reference number OEM: 12311721921
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Alternator BOSCH 12 31 1 721 92112V, 90A
Article number: 0 986 036 777
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- Alternator Charging Current [A]: 90
- Voltage [V]: 12
- Exchange Part
- Rotation Direction: Clockwise rotation
- Recommended additional repairs: V-Belt / V-Ribbed Belt
- Item number: 0 986 036 777
- Our price: £480.50
- Manufacturer: BOSCH
- EAN number: 2230846244700
- Condition: Remanufactured
- Reference number OEM: 12311721921
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