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Description
Kawasaki REGULATOR-VOLTAGE21066-2081Restore your Kawasaki engine to full operating condition with this genuine OEM replacement part engineered to meet the same quality standards as the original. Compatibility FX series (verify your model number before purchasing) FXV series FXT series Important: Always verify your exact engine model number and serial number before purchasing. Kawasaki engine series share many part numbers but not all parts are interchangeable between variants. Part
Restore your Kawasaki engine to full operating condition with this genuine OEM replacement part — engineered to meet the same quality standards as the original.
✅ Compatibility
- FX series (verify your model number before purchasing)
- FXV series
- FXT series
⚠️ Important: Always verify your exact engine model number and serial number before purchasing. Kawasaki engine series share many part numbers but not all parts are interchangeable between variants.
🛠️ Part Details
- OEM Part Number: 21066-2081
- Replaces: Verify with your Kawasaki dealer or engine manual
- Brand: Kawasaki — Genuine OEM
- Type: Original Equipment Manufacturer (OEM) replacement
⭐ Key Features
- Genuine OEM part manufactured to Kawasaki factory specifications
- Direct replacement — no modifications, drilling or adapting required
- Engineered for the temperature, vibration and load demands of commercial outdoor equipment
- Quality-controlled and tested to Kawasaki's standards
- Correct fit eliminates compatibility risks associated with aftermarket alternatives
🔧 What Problem This Solves
- Engine or equipment not performing correctly due to worn or damaged original part
- Component failure causing downtime or unsafe operating conditions
- Original part no longer sealing, engaging or functioning as designed
📏 Specifications
- Part Name: Regulator-Voltage
- Material: Refer to OEM specifications for your engine model
- Manufacturer: Kawasaki
- Condition: New — Genuine OEM
🔨 Installation
- Difficulty: Moderate — refer to your engine service manual
- Tools Required: Basic hand tools, Torque wrench, Refer to service manual for specific requirements
- Estimated Time: Varies — refer to your engine's service manual
- Tip: Always consult your Kawasaki engine service manual for torque specifications and step-by-step procedures.
💪 Why Choose This Part
Avoid the cycle of cheap aftermarket failures — one OEM part correctly installed outlasts multiple low-cost alternatives.
🛒 Order With Confidence
✓ Genuine OEM — Guaranteed Fit — This is a genuine Kawasaki OEM part backed by the manufacturer's quality guarantee. If you have any questions about compatibility, provide your engine model and serial number and our team will confirm fitment before you purchase.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 944 reviews
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Product Reviews
★★★★★ 3
Eaten by my Thighs
Color: 04-multicolour (4-pack), Size: X-Large
I wanted to love them. Sadly they have let me down.
Pros: natural breathable fabric , super soft and comfortable, cotton panty gussets for feminine health and panty liners will stick!! Yay:). And the colors! They are great!
But here’s the Con. And it’s the con of all cons.
THEY RIDE UP!! Eaten by my thighs. I’m 5’6” and in the general area of 175. I fluctuate depending on how many times I visit the bakery! :) I don’t have a thigh gap but it is not a super tight thigh squeeze. I seldom have thigh climb but these do. I tried two different sizes to see if that made a difference. Nope.
I was miserable at a recent theme park in these. I was wearing long heavy dresses and it was quite awkward to yank these legs down non stop.
They feel amazing and they have all the requirements
1. Soft
2. Comfortable and stretches with you
3. Breathable with nice thin fabric. Not bulky
4. Natural fibers
5. Great colors
If you are a person that is not blessed with Thunder Thighs, please order these. They are great! I wear them at home and to locations that I will not be doing a lot of walking at. I have washed them so many times and they look like new still.
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Reviewed in the United States on October 4, 2025
★★★★★ 5
Best Boxer Briefs for Women!
Color: 09-multicolour (4-pack), Size: Large
I rarely give 5⭐️’s but these deserve it! Hands down, the most comfortable material, stitching, waistband, moisture wicking and overall comfort. They sit right beneath my bellybutton, they wash and dry well and they’re sturdy. I have tried 3 styles and these are the best.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Super comfortable! Great for layering under loose, cheeky shorts. Colors amazing!
Color: Multicolor B (5-pack), Size: Small
I specifically got these to wear under some loose shorts I got from Amazon (5 Pack Modal Lounge Shorts) so my cheeks don't show when bending over, and the pop of color looks amazing anyway! I have a 27" waist and 37.25" hips, and size Small works perfect for me. I love how these shorts have a classic underwear lining that a pad would sit perfectly on, whereas the longer boxer style ones of this same brand do not have that classic panty liner style crotch. The material is uniquely thick, stretchy, and thin/breezy all at once! To be honest, I am not opposed to wearing these straight up as shorts to work out it. They look like cute booty shorts and no one would know they're technically underwear. Plus when you buy a 5 pack like this, you're getting an amazing price whereas most athletic shorts are priced at $20 per pair or more, and they're not made with ANY natural materials like these BambooCool shorts are. I like them!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Best Sleep Shorts EVER ♥️
Color: Multicolor a (5-pack), Size: Medium
Love, love, LOVE these bamboo BoyShorts! I wear them for sleeping because they’re incredibly light, soft and comfortable while still having a great liner. They fit to my body while not feeling tight, snug or restrictive. Soooo comfortable. I’m 5’8” 145 lbs and went with Medium. ♥️
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Amazing fit!!!
Color: Multicolor a (5-pack), Size: Large
These are quite literally the best underwear I have ever worn. I am going to replace all of my underwear with just these. I got the shorter boy shorts cut and they are amazing. These let my body be the shape that my body is, no squeezing or tight waist band. I feel so normal and comfortable in them, they’re breathable and soft!! I absolutely love them after so much trial and error with underwear I finally found the ones!
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Reviewed in the United States on April 20, 2026