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Voltage Regulator Rectifier for Kawasaki FR, FS, & FX Series Engines | OEM 21066-7017
Voltage Regulator Rectifier for Kawasaki FR, FS, & FX Series Engines | OEM 21066-7017
5.0 / 5.0
(16) 16 total reviews
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Product Overview
Maintain stable electrical performance for your Kawasaki engine.
This 15 Amp voltage regulator rectifier ensures consistent charging output, keeping your battery fully charged and enabling reliable PTO engagement.
Built for demanding outdoor environments, it delivers durable, heat-resistant performance for commercial mowers and heavy-duty use.
Product Compatibility
| Series | Model | Engine Type |
|---|---|---|
| Kawasaki FR Series | FR541V / FR600V / FR651V / FR691V / FR730V | Lawn Mower Engine |
| Kawasaki FS Series | FS481V / FS541V / FS600V / FS651V / FS691V / FS730V | Lawn Mower Engine |
| Kawasaki FX Series | FX481V / FX541V / FX600V / FX651V / FX691V / FX730V | Commercial Engine |
OEM Part Number:
21066-7017
Specifications
| Specification | Details |
|---|---|
| Amperage | 15 Amp |
| Voltage | 12V |
| Dimensions | 56.6mm × 36mm |
| Mounting Hole Distance | 67.3mm |
| Material | Aluminum alloy + high-grade plastic |
| Function | Voltage regulation & rectification |
Key Features
- Stable 15A Output – Ensures reliable battery charging and PTO operation
- Heavy-Duty Build – Designed for high heat and vibration environments
- Direct OEM Replacement – Matches 21066-7017 for easy installation
- Weather-Resistant Design – Dustproof, moisture-proof, corrosion-resistant
- Electrical System Protection – Prevents voltage spikes and component damage
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Fitment FAQ
Will this part fit my specific model and year?
This voltage regulator rectifier is intended for Series; Engine Type; Kawasaki FR Series; FR541V / FR600V / FR651V / FR691V / FR730V; Lawn Mower Engine; Kawasaki FS Series; FS481V / FS541V / FS600V / FS651V / FS691V / FS730V. It is best matched to original part number(s) 21066-7017. Key physical/spec details from the product data include Voltage: 12V, Mounting Hole Distance: 67.3mm, 12V. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 21066-7017 before purchase. For this voltage regulator rectifier, also compare the OEM number, plug shape, pin count, mounting-hole distance, heat-sink style, and AC/DC charging-system type. This is especially important for Kawasaki FR541V/FR600V/FR651V/FR691V models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this voltage regulator rectifier for machines outside the listed compatibility, or for units with different pin counts, plug shapes, AC/DC system types, or mounting-hole spacing. If your original part number does not cross-reference with 21066-7017, treat the fitment as unconfirmed. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, plug shape, pin count, mounting-hole distance, heat-sink style, and AC/DC charging-system type. Confirm OEM/cross-reference number(s): 21066-7017. Recheck listed specs such as Voltage: 12V, Mounting Hole Distance: 67.3mm, 12V. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Installed on my zero turn, worked and continues to work. Tested charging system with meter after installation and measured 14.6v. Easy to install and no problems since.
Installed on my Dixie chopper with Kawasaki FX730V. OEM part was over 40 dollars. Watched video on Youtube and installed in under 10 minutes. No more charging on jumping battery.
I was so happy to finally get my mower back up and running again after replacing a part. During the repair process, I couldn't help but notice that the replacement part seems to be constructed with significantly better materials and has a noticeably higher quality feel compared to the original product that I had pulled off to replace.
Part was an exact replacement for the one on my Husqvarna YT42 riding mower. Easy replacement. Just remove two wires and two screws and install the new unit. Check your battery voltage before starting the mower - should be around 12.4 VDC. After replacing the regulator, start the mower and idle at full throttle - recheck DC voltage at the battery while the mower is running - should read at least 13.4 VDC - more is better. If you don��t get at least 13.4V then check your wiring and stator output.
Works great on my Kawasaki FR engine.