MERCEDES-BENZ W123 Estate (S123) 250 T (123.086) (95 kW / 129 hp) 1978
Mercedes S123 250 T 2.5 Alternator (129 hp Petrol M 123.921)
57 items
RIDEX PLUS 4G0149P Alternator 12V, 55A, B+ (M6), B+ B+ D+ W, excl. vacuum pump, Ø 66 mm
Article number: 4G0149P
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Pulleys: with belt pulley
- Rated Voltage [V]: 14
- Engine Code: M123.921
- Belt Pulley Ø [mm]: 66
- Number of grooves: 1
- Plug Type ID: B+ B+ D+ W
- Vehicle Main Current: for vehicles with 12V main current
- Rotation Direction: Clockwise rotation
- Alternator Type: excl. vacuum pump
- Fastening Type: Single pivoted lever
- Clamp: B+ (M6)
- Bore Diameter 1 [mm]: 10
- Number of mounting bores: 2
- Number of threaded holes 0
- Distance from belt pulley to alternator [mm]: 77
- Item number: 4G0149P
- Our price: £81.99
- Manufacturer: RIDEX PLUS
- EAN number: 4067448818471
- Condition: New
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RIDEX 4G1417 Alternator 12V, 65A, B+,D+,W, excl. vacuum pump, Ø 70,0 mm
Article number: 4G1417
Reviews - 5
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- Construction Year to: 09 / 1979
- Engine Code: 123.920
- Transmission Code: 716.006
- Transmission Type: Manual Transmission
- Alternator Charging Current [A]: 65
- Voltage [V]: 12
- Pulleys: with belt pulley
- Rated Voltage [V]: 14
- Belt Pulley Ø [mm]: 70,0
- Number of grooves: 1
- Vehicle Main Current: for vehicles with 12V main current
- Alternator Type: excl. vacuum pump
- Fastening Type: Single pivoted lever
- Clamp: B+,D+,W
- Bore Diameter 1 [mm]: 10,5
- Number of mounting bores: 2
- Number of threaded holes 0
- Distance from belt pulley to alternator [mm]: 77,5
- Item number: 4G1417
- Our price: £110.49
- Manufacturer: RIDEX
- EAN number: 4066016900501
- Condition: New
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In stock
-51%
compared to
RRP £228.10
£110.49
price incl. 20% VAT
CASCO CAL10118AS Alternator 12V, 55A, CPA0007, with integrated regulator
Article number: CAL10118AS
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Manufacturer Restriction: BOSCH
- Pulleys: with belt pulley
- Plug Type ID: CPA0007
- Supplementary Article / Supplementary Info: with integrated regulator
- Number of mounting bores: 2
- Manufacturer: MERCEDES-BENZ
- Item number: CAL10118AS
- Our price: £101.49
- Manufacturer: CASCO
- EAN number: 2248410876331
- Condition: New
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BV PSH 555.005.055.010 Alternator 12V, 55A, B+ (M6), Ø 82,0 mm
Article number: 555.005.055.010
Reviews - 2
- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 82,0
- Number of grooves: 1
- Clamp: B+ (M6)
- Quality: +Line Original
- Number of mounting bores: 2
- Mounting Angle [degrees]: -60
- Item number: 555.005.055.010
- Our price: £103.49
- Manufacturer: BV PSH
- EAN number: 8720264084258
- Condition: New
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In stock (Item(s) left: 3)
-30%
compared to
RRP £149.06
£103.49
price incl. 20% VAT
excl. delivery costs
STARK SKGN-0320148 Alternator 12V, 55A, B+ (M6), B+ B+ D+ W, excl. vacuum pump, Ø 66 mm
Article number: SKGN-0320148
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Pulleys: with belt pulley
- Rated Voltage [V]: 14
- Engine Code: M123.921
- Belt Pulley Ø [mm]: 66
- Number of grooves: 1
- Plug Type ID: B+ B+ D+ W
- Vehicle Main Current: for vehicles with 12V main current
- Rotation Direction: Clockwise rotation
- Alternator Type: excl. vacuum pump
- Fastening Type: Single pivoted lever
- Clamp: B+ (M6)
- Bore Diameter 1 [mm]: 10
- Number of mounting bores: 2
- Number of threaded holes 0
- Distance from belt pulley to alternator [mm]: 77
- Item number: SKGN-0320148
- Our price: £116.49
- Manufacturer: STARK
- EAN number: 4059191442423
- Condition: New
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In stock (Item(s) left: 4)
-26%
compared to
RRP £158.39
£116.49
Price per item
price incl. 20% VAT
LUCAS LRA00823 Alternator 12V, 55A, Plug, 0001, Ø 70 mm
Article number: LRA00823
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Plug Type ID: 0001
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: Plug
- Bore Diameter 1 [mm]: 10
- Net weight [kg]: 4,6
- Length 4 [mm]: 56,0
- Item number: LRA00823
- Our price: £117.99
- Manufacturer: LUCAS
- EAN number: 5708279018362
- Condition: Remanufactured
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In stock (Item(s) left: 5)
£117.99
price incl. 20% VAT
A core charge of £27.21 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
VALEO REMANUFACTURED PREMIUM 436121 Alternator 14V, 55A, B+ / B+ / D+, L 60, Ø 75 mm
Article number: 436121
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-
- Construction Year to: 09 / 1979
- Engine Code: M 123.920
- Transmission Type: 4-Speed Manual Transmission
- Alternator Charging Current [A]: 55
- Voltage [V]: 14
- Product line: REMANUFACTURED PREMIUM
- Belt Pulley Ø [mm]: 75
- Number of ribs: 1
- Exchange Part
- Position / Degree: L 60
- Rotation Direction: Clockwise rotation
- Fastening Type: Double Pivot Lever
- Clamp: B+ / B+ / D+
- Weight [kg]: 4,902
- Item number: 436121
- Our price: £120.99
- Manufacturer: VALEO
- EAN number: 3276424361219
- Condition: Remanufactured
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Contents of the Alternator VALEO set:
Description of the product
Units
Article number
Alternator
1
9AR2759K
Alternator
1
9AR2784
Alternator
1
9AR2785
Alternator
1
9AR2846
Alternator
1
9AR5028K01
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In stock (Item(s) left: 1)
£120.99
price incl. 20% VAT
A core charge of £52.13 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
ELSTOCK 28-0675 Alternator 12V, 55A, Plug, 0001, Ø 70 mm
Article number: 28-0675
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Plug Type ID: 0001
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: Plug
- Bore Diameter 1 [mm]: 10
- Length [mm]: 22,0
- Net weight [kg]: 4,6
- Length 4 [mm]: 56,0
- Item number: 28-0675
- Our price: £122.99
- Manufacturer: ELSTOCK
- EAN number: 5708114008831
- Condition: Remanufactured
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Free delivery on this item
In stock (Item(s) left: 2)
£122.99
price incl. 20% VAT
A core charge of £26.20 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
HELLA 8EL 011 711-681 Alternator 14V, 55A, Ø 69 mm
Article number: 8EL 011 711-681
Reviews - 12
- Alternator Charging Current [A]: 55
- Voltage [V]: 14
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 69
- Number of grooves: 1
- Used part return not required
- TecDoc Engine Number: M 123.921
- New part without deposit
- Assy. / disassy. by qualified personnel required!
- Item number: 8EL 011 711-681
- Our price: £123.49
- Manufacturer: HELLA
- EAN number: 4082300335750
- Condition: New
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In stock
-34%
compared to
RRP £188.03
£123.49
price incl. 20% VAT
STARK SKGN-03221640 Alternator 12V, 65A, B+,D+,W, excl. vacuum pump, Ø 70,0 mm
Article number: SKGN-03221640
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-
- Construction Year to: 09 / 1979
- Engine Code: 123.920
- Transmission Code: 716.006
- Transmission Type: Manual Transmission
- Alternator Charging Current [A]: 65
- Voltage [V]: 12
- Pulleys: with belt pulley
- Rated Voltage [V]: 14
- Belt Pulley Ø [mm]: 70,0
- Number of grooves: 1
- Vehicle Main Current: for vehicles with 12V main current
- Alternator Type: excl. vacuum pump
- Fastening Type: Single pivoted lever
- Clamp: B+,D+,W
- Bore Diameter 1 [mm]: 10,5
- Number of mounting bores: 2
- Number of threaded holes 0
- Distance from belt pulley to alternator [mm]: 77,5
- Item number: SKGN-03221640
- Our price: £128.49
- Manufacturer: STARK
- EAN number: 4066016900495
- Condition: New
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In stock
-43%
compared to
RRP £228.10
£128.49
price incl. 20% VAT
AS-PL A0069 Alternator 12V, 55A
Article number: A0069
Reviews - 1
- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Manufacturer Restriction: BOSCH
- Pulleys: with belt pulley
- Quality: STANDARD LINE
- Version: 0120489556
- New part without deposit
- Item number: A0069
- Our price: £129.49
- Manufacturer: AS-PL
- EAN number: 5901259400991
- Condition: New
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In stock
-21%
compared to
RRP £163.91
£129.49
price incl. 20% VAT
AS-PL A0393 Alternator 12V, 65A
Article number: A0393
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- Alternator Charging Current [A]: 65
- Voltage [V]: 12
- Manufacturer Restriction: BOSCH
- Pulleys: with belt pulley
- Diameter [mm]: 73,00
- Quality: STANDARD LINE
- New part without deposit
- Item number: A0393
- Our price: £129.99
- Manufacturer: AS-PL
- EAN number: 5901259490732
- Condition: New
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In stock
-21%
compared to
RRP £165.94
£129.99
price incl. 20% VAT
STARDAX STX100142R Alternator 12V, 55A, Ø 70 mm
Article number: STX100142R
Reviews - 1
- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Pulleys: with belt pulley
- Engine Code: M123.921
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Number of grooves: 1
- Exchange Part
- Item number: STX100142R
- Our price: £134.49
- Manufacturer: STARDAX
- EAN number: 226382186053751860537
- Condition: New
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In stock
£134.49
price incl. 20% VAT
A core charge of £22.77 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
BV PSH 906.002.055.010 Alternator 24V, 55A, B+ (M8), Ø 116,0 mm
Article number: 906.002.055.010
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- Alternator Charging Current [A]: 55
- Voltage [V]: 24
- Belt Pulley Ø [mm]: 116,0
- Number of grooves: 2
- Clamp: B+ (M8)
- Quality: +Line Original
- Number of mounting bores: 3
- Mounting Angle [degrees]: 22
- Item number: 906.002.055.010
- Our price: £148.49
- Manufacturer: BV PSH
- EAN number: 8720264049912
- Condition: New
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In stock
-21%
compared to
RRP £188.23
£148.49
price incl. 20% VAT
HC-Cargo 110358 Alternator 14V, 55A, PL22, Ø 70,0 mm
Article number: 110358
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- Alternator Charging Current [A]: 55
- Voltage [V]: 14
- Pulleys: with belt pulley
- Belt Pulley Ø [mm]: 70,0
- Number of grooves: 1
- Plug Type ID: PL22
- Rotation Direction: Clockwise rotation
- Length [mm]: 162,50
- Item number: 110358
- Our price: £176.49
- Manufacturer: HC-Cargo
- EAN number: 2248198843502
- Condition: New
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In stock
£176.49
price incl. 20% VAT
A core charge of £7.59 (incl. 20% VAT) is NOT included in the price and will be refunded to the customer when the old part is returned
ERA 210111A Alternator 14V, 55A, B+D+, Ø 72 mm
Article number: 210111A
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- Alternator Charging Current [A]: 55
- Voltage [V]: 14
- Belt Pulley Ø [mm]: 72
- Number of grooves: 1
- Plug Type ID: B+D+
- Rotation Direction: Clockwise rotation
- Number of mounting bores: 2
- Distance from belt pulley to alternator [mm]: 77
- Belts: without V-belt
- Item number: 210111A
- Our price: £188.49
- Manufacturer: ERA
- EAN number: 2223414552600
- Condition: New
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Get a bonus of £1.23 when you purchase this product
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In stock (Item(s) left: 1)
£188.49
price incl. 20% VAT
WALKER WAL00386 Alternator 12V, 55A, Plug, 0001, Ø 70 mm
Article number: WAL00386
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- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Belt Pulley Ø [mm]: 70
- Number of ribs: 1
- Plug Type ID: 0001
- Vehicle Main Current: for vehicles with 12V main current
- Clamp: Plug
- Bore Diameter 1 [mm]: 10
- Net weight [kg]: 4,6
- Item number: WAL00386
- Our price: £202.50
- Manufacturer: WALKER
- EAN number: 4060426560607
- Condition: New
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Get a bonus of £1.31 when you purchase this product
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In stock (Item(s) left: 2)
£202.50
price incl. 20% VAT
RIDEX 4G0149 Alternator 12V, 55A, B+ (M6), B+ B+ D+ W, excl. vacuum pump, Ø 66 mm
Article number: 4G0149
Reviews - 9
- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Pulleys: with belt pulley
- Rated Voltage [V]: 14
- Engine Code: M123.921
- Belt Pulley Ø [mm]: 66
- Number of grooves: 1
- Plug Type ID: B+ B+ D+ W
- Vehicle Main Current: for vehicles with 12V main current
- Rotation Direction: Clockwise rotation
- Alternator Type: excl. vacuum pump
- Fastening Type: Single pivoted lever
- Clamp: B+ (M6)
- Bore Diameter 1 [mm]: 10
- Number of mounting bores: 2
- Number of threaded holes 0
- Distance from belt pulley to alternator [mm]: 77
- Item number: 4G0149
- Our price: £94.99
- Manufacturer: RIDEX
- EAN number: 4059191704088
- Condition: New
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Сurrently out of stock
-40%
compared to
RRP £158.40
£94.99
Price per item
price incl. 20% VAT
excl. delivery costs
RIDEX 4G1959 Alternator 12V, 55A, D+,B+(9,8), excl. vacuum pump, Ø 69 mm
Article number: 4G1959
Reviews - 3
- Alternator Charging Current [A]: 55
- Voltage [V]: 12
- Pulleys: for v-belt pulley
- Rated Voltage [V]: 14
- Belt Pulley Ø [mm]: 69
- Number of grooves: 1
- Vehicle Main Current: for vehicles with 12V main current
- Rotation Direction: Clockwise rotation
- Alternator Type: excl. vacuum pump
- usable for vehicles with alternator charging current [A]: 55
- Fastening Type: Single pivoted lever
- Clamp: D+,B+(9,8)
- Number of mounting bores: 2
- Number of threaded holes 0
- Connector Shape: angular
- Quantity Unit: Piece
- Item number: 4G1959
- Our price: £101.49
- Manufacturer: RIDEX
- EAN number: 4067448328345
- Condition: New
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BOSCH 0 986 030 360 Alternator
Article number: 0 986 030 360
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- Exchange Part
- Recommended additional repairs: V-Belt / V-Ribbed Belt
- Item number: 0 986 030 360
- Our price: £46.49
- Manufacturer: BOSCH
- EAN number: 2230130418300
- Condition: Remanufactured
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What is the best alternator for the Mercedes-Benz W123 Estate (S123) 2525 ccm?
The best alternators for the Mercedes S123 250 T (123.086) are from the following original brands:
- RIDEX
- AS-PL
- BV PSH
- BOSCH
- HELLA
How much does an alternator for the MERCEDES-BENZ W123 Estate (S123) 250 T (123.086) cost?
The price of an alternator for a Mercedes S123 250 T (123.086) Petrol ranges from £46.49 to £202.5.
How to tell if the alternator on your Mercedes S123 250 T (123.086) is bad and what to do
If the alternator is not charging the battery, symptoms such as flickering lights or a loss of power may be the first signs of a fault. The regulator, freewheel clutch and screws must be checked. If necessary, remove the alternator on your MERCEDES-BENZ W123 Estate (S123) 95 kW / 129 hp and replace it.
Which alternator do I need for my Mercedes S123 250 T (123.086) Petrol (Intake Manifold Injection/ Carburettor) 1978 - 1979?
| Alternator charging current [A] | 55; 65 |
| Pulley Ø [mm] | 66; 69; 70; 72; 75; 82; 116 |
| Pulleys | for v-belt pulley; with belt pulley |
| Weight [kg] | 4.902 |
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