Genuine BMW Alternator for BMW 5 Series E28 (1982-1988)

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The alternator keeps the battery in a constant state of charge anytime the engine is running. If your lights are dimming or you hear excessive bearing noise around the alternator, chances are that it's time for a replacement.
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Genuine BMW Alternator Adjusting Bar - E30 325e 325i, E28 528e ...
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Genuine BMW - Corporate Logo
T#:7124
Part#: 12311274833
In Stock
$ 44.99 USD
Free Shipping on orders $49 and up
Replace the alternator adjuster on BMW's with the M20 engine with this Genuine BMW part. Over time this part can become corroded or the teeth can become stripped.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.​

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
1982-1988 E28 BMW 528e
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Genuine BMW Alternator Bushing (20 mm Length) - E10 E12 E21 E23 E24 E...
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Genuine BMW - Corporate Logo
T#:22410
Part#: 12311268447
Ships in 1-2 days
2% off MSRP $ 45.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 45.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bush - 90 Shore Lang

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,S14,S38

Genuine BMW Alternator Pulley - 66mm - M20 2.5L
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Genuine BMW - Corporate Logo
T#:19315
Part#: 12311288238
Ships in 1-2 days
4% off MSRP $ 109.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 105.99 USD
Free Shipping
4% off MSRP
$ 109.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 105.99 USD
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Genuine BMW Pulley - D=66mm

This item fits the following BMW Chassis:
E30 M3,E30,E34

Fits BMW Engines including:
M10,M20,S14


Genuine BMW Alternator Positive Cable
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Genuine BMW - Corporate Logo
T#:40118
Part#: 12521312124
Ships in 1-2 days
4% off MSRP $ 50.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 48.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 50.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 48.99 USD
Free Shipping on orders $49 and up


Genuine BMW Ground Cable Alternator - L=170mm

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,M42,S14,S38

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Genuine BMW Alternator Fan
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Genuine BMW - Corporate Logo
T#:38896
Part#: 12311735306
Ships in 1-2 days
4% off MSRP $ 49.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 47.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 49.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 47.99 USD
Free Shipping on orders $49 and up


Genuine BMW Fan Wheel

This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Fits BMW Engines including:
M10,M20,M30,M42,S14,S38

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Bush - E23, E24, E28, E30
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Genuine BMW - Corporate Logo
T#:38731
Part#: 12311276227
Ships in 1-2 days
3% off MSRP $ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 30.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bush

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,S14,S38


Genuine BMW Alternator Brush Set
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Genuine BMW - Corporate Logo
T#:7133
Part#: 12311727756
Ships in 1-2 days
4% off MSRP $ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 24.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 25.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 24.99 USD
Free Shipping on orders $49 and up


Genuine BMW Carbon Brush Set

This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34,E36

Fits BMW Engines including:
M10,M20,M30,M42,M50,M70,S14,S38,S70

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Genuine BMW Alternator Bushing (Red) (8 mm Length) - E10 E12 E21 E23 ...
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Genuine BMW - Corporate Logo
T#:22411
Part#: 12311268449
Ships in 4 Business Days
2% off MSRP $ 40.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 39.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 40.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 39.99 USD
Free Shipping on orders $49 and up


Genuine BMW Bush - 90 Shore Kurz

Fits BMW Engines including:
M10,M20,M30


Fan Wheel - E10, E12, E21, E23, E24, E28, E3, E9
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Genuine BMW - Corporate Logo
T#:38759
Part#: 12311350199
Ships in 7 Business Days
4% off MSRP $ 53.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 51.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 53.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 51.99 USD
Free Shipping on orders $49 and up


Genuine BMW FAN WHEEL

Fits BMW Engines including:
M10,M20,M30


Alternator / PS / AC Idler Nut
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Genuine BMW - Corporate Logo
T#:7139
Part#: 12317677914
In Stock
$ 15.24

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 15.23 USD
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$ 15.23 USD
Free Shipping on orders $49 and up
GENUINE BMW ENGINE ELECTRICAL IDLER 12317677914
Woodruff Key
4X5
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Genuine BMW - Corporate Logo
T#:28561
Part#: 07119951453
In Stock
Sale - Save 26% $ 3.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2.96 USD
Free Shipping on orders $49 and up
Sale - Save 26%
$ 3.99

This product was last offered at the strikethrough price on
06-25-2026

$ 2.96 USD
Free Shipping on orders $49 and up


Genuine BMW Woodruff Key
This item fits the following BMW Chassis:
E30 M3,E70 X5M,E71 X6M,E53 48IS,E30,E34,E36,E53 X5 X5,E63,E65,E70 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16

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Washer - E12, E21, E23, E24, E28, E30
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Genuine BMW - Corporate Logo
T#:38719
Part#: 12311268420
Ships in 1-2 days
$ 10.99 USD
Free Shipping on orders $49 and up


Genuine BMW Washer

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,S14,S38



Washer
10X5,3X1-200 Hv
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Genuine BMW - Corporate Logo
T#:215808
Part#: 07119904206
Ships in 1-2 days
$ 1.99 USD
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$ 1.99 USD
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Genuine BMW Washer - 07119904206

Lock Ring - E23, E24, E28, E30
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Genuine BMW - Corporate Logo
T#:38730
Part#: 12311276226
Ships in 1-2 days
$ 9.99 USD
Free Shipping on orders $49 and up


Genuine BMW Lock Ring

This item fits the following BMW Chassis:
E30 M3,E30

Fits BMW Engines including:
M10,M20,M30,S14,S38

Genuine BMW Alternator Supporting Bracket - E23 735i E24 635CSi M30 3...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:21711
Part#: 12311708343
Ships in 7 Business Days
4% off MSRP $ 158.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD
Free Shipping
4% off MSRP
$ 158.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 152.99 USD
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Genuine BMW SUPPORTING BRACKET
Fits BMW Engines including:
M30,S38


Genuine BMW Rmfd Generator - 12311711375
90A
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Genuine BMW - Corporate Logo
T#:38825
Part#: 12311711375
Ships in 7 Business Days
$ 1,444.99 USD
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$ 1,444.99 USD
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Price includes $180.00 core charge.

Remanufactured Alternator
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Genuine BMW - Corporate Logo
T#:6699718
Part#: 12312287828KT
Ships in 4 Business Days
$ 1,211.99 USD
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$ 1,211.99 USD
Free Shipping
Price includes refundable $200 core charge