SKU: 71897426211

Voltage Regulator Rectifier For Kawasaki Z 900 Z1 Z 1000 A1 A2 21066-019

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Description

Voltage Regulator Rectifier For Kawasaki Z 900 Z1 Z 1000 A1 A2 21066-019Voltage Regulator Rectifier Fit for Kawasaki KZ900 KZ1000 A1 A2 Z1 R 21066 026 Features: Direct replacement to your original unit. Perfect fit and ready to install. Always use a sealant to mount the cable gland joint. All products shipped are tested. Instruction is NOT included. Specifications: Condition: Aftermarket 100% Brand New Quanity: 1 PC Type: Regulator Rectifier Other specifications: Number of wires: 6 Number of plugs: 1 Number of pins: 4 + 1

Voltage Regulator Rectifier Fit for Kawasaki KZ900 KZ1000 A1 A2 Z1-R - 21066-026

Features:
Direct replacement to your original unit.
Perfect fit and ready to install.
Always use a sealant to mount the cable gland joint.
All products shipped are tested.
Instruction is NOT included.

Specifications:
Condition: Aftermarket 100% Brand New
Quanity: 1 PC
Type: Regulator / Rectifier

Other specifications:
Number of wires: 6
Number of plugs: 1
Number of pins: 4 + 1 + 1

Please comfirm and compare the number of pins and plugs with the old part if the same before purchasing.

Wiring diagrams:
Yellow - Power Coil
Yellow - Power Coil
Yellow - Power Coil
Brown - Ignition Switch
White - Battery +
Black - Ground -

Replacement Part Number:
21066-013
21066-019
21066-026

(Always compare part numbers to your parts schematics and cross reference appropriately.)
(This is NOT a genuine Part, OEM part numbers are included for product type identification and comparison only.)

Fits Make/Model/Year:
Fit for Kawasaki KZ900 1973-1975
Fit for Kawasaki Z1 1973-1975
Fit for Kawasaki KZ900A/C 1976-1977
Fit for Kawasaki KZ1000A1/a2 1977-1978
Fit for Kawasaki KZ1000B LTD 1977-1980
Fit for Kawasaki Z1-R1
Fit for Kawasaki KZ1000G Z1 Classic 1980
Fit for Kawasaki KZ1000J Model 1981-1982
Fit for Kawasaki KZ1000K LTD 1981-1982
Fit for Kawasaki KZ1000M CSR 1981-1982
Fit for Kawasaki KZ1000R Eddie Lawson 1982
Fit for Kawasaki KZ1100A Shaft 1981-1982
Fit for Kawasaki KZ1100B GP 1981
Fit for Kawasaki KZ1100D Spectre 1982
Fit for Kawasaki KZ1300A/B 1979-1982

(Compatibility Chart is for reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package includes:
1x Regulator Rectifier

Note:
Signs that your regulator needs replacing:
Depending on the location of the regulator rectifier, the part can easily overheat. Other causes for a dead regulator rectifier center on the battery. Ground connections are important for good voltage, and if there is a faulty voltage, the regulator rectifier can run hot. Bad grounding, corroded battery connection and poor or loose battery connections will cause faulty voltage too.

There are generally two ways for the regulator rectifier to fail:
The first deals with diode burnout, resulting in battery drain. It is easy to assume that the issue is a bad battery because of symptoms such as dimming headlights and poor starts. Checking the voltage with a voltmeter versus relying on symptoms alone will prove highly beneficial. If the voltage drops below 13 volts, the motorcycle will begin to drain the battery and eventually the engine will stop. Check for bad connections and corrosion; these can also cause voltage issues.
The other failure type is shunt regulator burnout, where the regulator rectifier fails to control the voltage, resulting in battery overcharge. Again, a voltmeter will be useful for diagnosis. Though generally, readings above 17 volts mean the regulator rectifier is not converting the excess power correctly and all of that excess voltage may cause the headlights to become extremely bright and then blow.

The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer fits.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71897426211

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Niko Garcia
Carnegie, US
★★★★★ 4
Good shirt
Size: Medium, Color: Teal 02
Love the color and the design of the shirt. The small threads it’s made out of starting to come loose though. Now when look down at chest and stomach area, there are 15+ little strings that pop out of the shirt.
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Reviewed in the United States on April 25, 2026
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Greg
New York, US
★★★★★ 5
Awesome shirt!
Size: Medium, Color: Blue, Size: Medium, Color: Blue
This is a nice shirt! Let me start by saying I am 6 foot 2, 195pounds with about a 40 inch chest, 42 inches on a good day! Ha ha. I ordered a medium because I wanted an athletic fit. The medium fits just right. For those wanting a normal, roomier fit I would recommend the large for my size. I’ll get a lot of compliments when I wear this shirt. What I like about it is that it is wrinkle free and looks great, I would not wear it on a super hot day with a snug fit. I do live in Florida, so that makes a difference. I also ordered the black one, both the blue and the black look very good for dress /casual. It’s polyester so it’s not super soft, which is OK. That also means it does not shrink.
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Reviewed in the United States on October 4, 2025
T
Verified Purchase
Tara and Jeff
Lake Worth, US
★★★★★ 3
Nice shirt but seems to be confusion over the color/pattern.
Size: Medium, Color: Teal 02
Nice shirt. Looks sharp and feels comfy. Lightweight and breathable. Definitely an "upscale" polo that looks like it costs more than it does - so very happy with the value. Fits as expected for the size. The only issue is that I ordered a color and style called Teal-02 and they sent me Navy-01. The color and pattern is different. It's not bad, just not what I ordered. I requested a resend of the Teal...and got the same Navy color again. Annoying.
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Reviewed in the United States on May 7, 2026
T
Verified Purchase
T
Natrona Heights, US
★★★★★ 5
Nice, but a bit transparent.
Size: X-Large, Color: Lake Green
I love the feel of this shirt. It is very cool and comfortable. The only thing I will add is that this shirt is a bit see-through. If I wear it, I do not feel comfortable unless I have an undershirt on.
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Reviewed in the United States on May 13, 2026
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John
New York, US
★★★★★ 5
Nice shirt
Size: XX-Large, Color: Black
Great look Great fit... got it in a few colors
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Reviewed in the United States on April 15, 2026

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