HITACHI LR21550 Alternator – Genuine OEM Auto Spare Parts

OE Reference Numbers

NISSAN23120-19V01•23120-21000•23120-14801•23500-99008•23100-01N06•23100-20R00•23100-59S01•23100-H7703•23135-99001•23142-50405

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OE Number stands for Original Equipment Number — the number of a complete component or sub-assembly originally fitted to the vehicle. OE Number is interchangeable with the term Genuine Number.

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Add your car to see parts that fit it exactly.

Select your vehicle

Add your car to see parts that fit it exactly.

OE parts come from the original manufacturer. Aftermarket parts are quality alternatives, often at a lower price.

48 results

HITACHI

OE Verified by Carbus24

Exact Match

LR21550 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

HITACHI

OE Verified by Carbus24

Exact Match

LR21550 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

MERCEDES-BENZ

OE Verified by Carbus24

0124325041 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

MERCEDES-BENZ

OE Verified by Carbus24

0124325041 - Alternator

Outer Diameter [mm]:47.00 mm

Quality:STANDARD LINE

Height [mm]:14.00 mm

Inner Diameter [mm]:17.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

MERCEDES-BENZ

OE Verified by Carbus24

0124325076 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

MERCEDES-BENZ

OE Verified by Carbus24

0124325076 - Alternator

Outer Diameter [mm]:47.00 mm

Quality:STANDARD LINE

Height [mm]:14.00 mm

Inner Diameter [mm]:17.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120339503 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120339503 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120339510 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120339510 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120450009 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120450009 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469501 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469501 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469531 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469531 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469574 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469574 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469664 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120469664 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

FORD

OE Verified by Carbus24

0120469713 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

FORD

OE Verified by Carbus24

0120469713 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489538 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489538 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489571 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489571 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489576 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489576 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489575 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489575 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489578 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489578 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489579 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489579 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489649 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489649 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489650 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489650 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489664 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489664 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489788 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489788 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489829 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489829 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489880 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489880 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489899 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

0120489899 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

LR24029B - Alternator NISSAN 300ZX (Z31) 3.0

HITACHI

OE Verified by Carbus24

LR24029B - Alternator NISSAN 300ZX (Z31) 3.0

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

CarBus24 Genuine Promise

HITACHI

OE Verified by Carbus24

LR24025 - Drive Bearing, alternator NISSAN 300ZX (Z31) 3.0

Voltage [V]:28 V

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

SMART

OE Verified by Carbus24

063341658000 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

SMART

OE Verified by Carbus24

063341658000 - Alternator

Outer Diameter [mm]:47.00 mm

Quality:STANDARD LINE

Height [mm]:14.00 mm

Inner Diameter [mm]:17.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

YANMAR

OE Verified by Carbus24

12979577200 - Rectifier, alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

YANMAR

OE Verified by Carbus24

12979577200 - Rectifier, alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

SKODA

OE Verified by Carbus24

114901010 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

SKODA

OE Verified by Carbus24

114901010 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201147 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201147 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201146 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201146 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201219 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

PUCH

OE Verified by Carbus24

11201219 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VOLVO

OE Verified by Carbus24

11201535 - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VOLVO

OE Verified by Carbus24

11201535 - Alternator Regulator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

OE Verified by Carbus24

11201606 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

OE Verified by Carbus24

11201606 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

HONDA

OE Verified by Carbus24

31100634045 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

HONDA

OE Verified by Carbus24

31100634045 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

HONDA

OE Verified by Carbus24

31100634811 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

HONDA

OE Verified by Carbus24

31100634811 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

DAIHATSU

OE Verified by Carbus24

2702013160000 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

DAIHATSU

OE Verified by Carbus24

2702013160000 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

TOYOTA

OE Verified by Carbus24

2702025105 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

TOYOTA

OE Verified by Carbus24

2702025105 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

NISSAN

OE Verified by Carbus24

2310051N00 - Carbon Brush, alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

NISSAN

OE Verified by Carbus24

2310051N00 - Carbon Brush, alternator

Outer Diameter [mm]:47.00 mm

Quality:STANDARD LINE

Height [mm]:14.00 mm

Inner Diameter [mm]:17.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

ITAB AUTOMOTIVE

21420602AV - Alternator Regulator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

ITAB AUTOMOTIVE

21420602AV - Alternator Regulator

Voltage [V]:24 V

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

FA1

MD001502 - Centre Muffler

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

FA1

MD001502 - Centre Muffler

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

AGC AUTOMOTIVE

4149590 - Side Window

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

AGC AUTOMOTIVE

4149590 - Side Window

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VALEO

A14N158 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VALEO

A14N158 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VALEO

A13N297 - Alternator

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

VALEO

A13N297 - Alternator

Quality:STANDARD LINE

Outer Diameter [mm]:32.00 mm

Height [mm]:10.00 mm

Inner Diameter [mm]:12.00 mm

Price on Request

Dispatch in 3 business days

CarBus24 Genuine Promise

Why Customers Choose CarBus24

Our Promises to Every Customer

Genuine Promise

Checked against the OE numbers above before listing.

Money Back Guarantee

Get the item you ordered or your money back.

Secure Transaction

Your payment info is protected at all times.

14-Day Returns

Changed your mind? Return it within 14 days.

Cross-referenced parts are cataloged as fitting the same application but are not guaranteed to be identical to the original manufacturer part. Verify fitment against your OE number or VIN before ordering.

How to Confirm This Part Fits Your Vehicle

Reference/cross-reference numbers vary by engine, transmission, chassis and production date — not by number alone. Before ordering, compare your original OE number against LR21550 number by HITACHI listed above, and check the dimensions or specifications against your original part.

If you’re unsure, contact CarBus24 with your VIN or the number printed on your original part and we’ll confirm the correct match before you order.

OE vs. Aftermarket Parts

OE (SACHS, Ford, Mazda)	Aftermarket (FAST, Valeo, LUK, Exedy)
Matches original manufacturer specification	Cross-referenced to the same application
Typically higher price	Typically lower price
Direct OE part number	Equivalent fit, different part number

Related Categories

Engine Parts

Engine components cross-referenced by OE number.

Brake System

Pads, discs and calipers for common applications.

Transmission & Clutch

Clutch kits, gearboxes and linkages.

Frequently Asked Questions

How do I know if a part matching LR21550 number by HITACHI fits my car?

Compare your original OE number against the OE Reference Numbers listed above, and check the dimensions or specifications against your original part.

What is the difference between OE and aftermarket parts?

OE parts match the original manufacturer specification. Aftermarket parts are cross-referenced to fit the same application, usually at a lower price.

Can I search by my vehicle instead of an OE number?

Yes — select your vehicle from the sidebar to see parts confirmed to fit your car.

What if I'm not sure which OE number I have?

Send us your VIN or the number printed on your original part and our team can confirm the correct match before you order.