SKU: 20861318835

Voltage Regulator Rectifier For Kawasaki KZ 550 A Z550 C LTD Z KZ 1000 1980-1983

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Description

Voltage Regulator Rectifier For Kawasaki KZ 550 A Z550 C LTD Z KZ 1000 1980-1983Voltage Regulator Rectifier Fit for Kawasaki KZ 550 A Z550 C LTD 1980 1983 Features: OEM quality, 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. Attention: This regulator is not suitable for lithium ion batteries! The battery or other electric parts can be damaged! Specifications: Condition: Aftermarket 100%

Voltage Regulator Rectifier Fit for Kawasaki KZ 550 A Z550 C LTD 1980-1983

Features:
OEM quality, 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.

Attention:
This regulator is not suitable for lithium-ion batteries! The battery or other electric parts can be damaged!

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

Other specifications :
Number of wires: 5
Number of plugs: 1 (+1)
Number of pins: 4 + 1

Replacement Part Number:
21066-1011

Fits Models:
Fit for Kawasaki - 1980 - KZ550 - KZ550-A1
Fit for Kawasaki - 1981 - KZ550 - KZ550-A2
Fit for Kawasaki - 1982 - KZ550 - KZ550-A3
Fit for Kawasaki - 1983 - KZ550 - KZ550-A4
Fit for Kawasaki - 1980 - KZ550 LTD - KZ550-C1
Fit for Kawasaki - 1981 - KZ550 LTD - KZ550-C2
Fit for Kawasaki - 1982 - KZ550 LTD - KZ550-C3
Fit for Kawasaki - 1983 - KZ550 LTD - KZ550-C4
Fit for Kawasaki - 1980 - KZ1000 LTD - KZ1000-B4
Fit for Kawasaki - 1982 - KZ1000 LTD - KZ1000-K2

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

Package includes:
1x Voltage Regulator Rectifier

(Comes exactly as pictured.)

Note:
Before installing your new regulator rectifier;

Check the AC output of the stator.
Replace any burned or corroded connectors on stator and regulator/rectifier
Check and repair any melted wiring.
Use hi-temp dielectric grease on all connectors.

How to distinguish CDI box with AC fired or CDI box with DC fired?
If headlights turn on without the engine running(with just the key on), it is a DC system. In the AC system, turning headlights on require the engine to be running. Another indication is, if the engine will only runs with a battery it is DC. If it will runs without a battery, it is a AC system.

What does the voltage regulator do?
This regulator has the task of converting the alternating voltage (AC) generated by the alternator into the direct voltage (DC) 12V used in the vehicle electrical system and keeping the voltage within a certain range.
The voltage regulator is also responsible for ensuring that the battery is charged and that the light bulbs do not burn out.

How do I know if the charge regulator can be defective?
- Incandescent lamps burn out all the time.
- Headlights get brighter and darker.
- The battery is constantly empty.

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: 20861318835

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Alex
Phoenix, US
★★★★★ 5
Fits amazing!
Color: Brown, Color: Brown
Fits just right, like a glove on my desk. Make sure you take measurement on the width, it is long. Saves a lot of space. Easy to assemble, but make sure you’re aligning the front with the front on the 1 & 2. Sturdy, amazing quality.
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Reviewed in the United States on January 23, 2026
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Alice
Carnegie, US
★★★★★ 1
Terrible Quality Control
Color: Oak, Color: Oak
A piece of the wood didn’t even come punctured. Unable to assemble this. Waste of time and money. Avoid at all costs.
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Reviewed in the United States on February 26, 2026
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Brandon
West Palm Beach, US
★★★★★ 5
Great Tray For Storing My Everyday Carries
Size: 8.5" x 5.8" x 1.9", Color: Black
My everyday carry items (wallet, keys, etc.), used to just get thrown around wherever when I'd get home, but this little tray makes a great, defined, space for me to keep those things when I don't need them on me. The soft lining reduces the obnoxious sound of throwing keys on a hard surface, and of course keeps me from scratching up a surface. The build feels quality and I haven't seen any damage to it yet. Also the all black version with gold buckle looks quite good and adds a subtle touch of luxury. Absolute recommend for the price.
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Reviewed in the United States on April 15, 2026
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David Jordan
San Leandro, US
★★★★★ 5
Just the right size to empty your pockets.
Size: 8.5" x 5.8" x 1.9", Color: Orange
Perfect size to empty my pockets when I get home. Fits my wallet, keys, AirPods, etc. excellent quality.
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Reviewed in the United States on March 21, 2026
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Pilot Wife
Houston, US
★★★★★ 5
Nice and classy
Size: 8.5" x 5.8" x 1.9", Color: Black
Bought this for my husband for Christmas and he loved it. Super classy elegant well made box. Perfect for bedside nightstand for your watch and rings.
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Reviewed in the United States on December 4, 2025

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