SKU: 55222456682

Massimo UTV MXU 1000 5-Pin Regulator Rectifier MSU800 21051100201

Sale price$60.99 Regular price$67.77
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Description

Massimo UTV MXU 1000 5-Pin Regulator Rectifier MSU800 210511002015 Wire Voltage Regulator Rectifier Fit for ODES UTV 650 850 1000 Dominator X2 X4 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. Attention: This regulator is not suitable for lithium ion batteries! The battery or other electric parts can be damaged! Specifications: Condition: Aftermarket 100% Brand

5-Wire Voltage Regulator Rectifier Fit for ODES UTV 650 850 1000 Dominator X2 X4

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.

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: Regulator / Rectifier

Other specifications:
Number of plugs: 2
Number of pins: 3 + 2

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

Replacement Part Number:
21051100201
21051100202
21051100203

Fits Make/Model:
Fit for Massimo UTV MSU 800
Fit for Massimo UTV MSU 800-5
Fit for Massimo UTV MXU 1000
Fit for Massimo UTV WARRIOR 800
Fit for Massimo UTV WARRIOR 1000
Fit for Massimo UTV X2-800 LT
Fit for Massimo UTV X2-1000
Fit for Massimo UTV X4-1000 LT
Fit for Massimo UTV XF-3
Fit for ODES UTV 650
Fit for ODES UTV 800
Fit for ODES UTV 1000
Fit for ODES Dominator X2 LT
Fit for ODES Dominator X4 LT
Fit for ODES Dominator X2 800
Fit for ODES Dominator X4 800
Fit for ODES Dominator X2 1000
Fit for ODES Dominator X4 1000
Fit for ODES Dominator X4 LT 800
Fit for ODES Dominator X4 LT 1000
Fit for ODES Junglecross 800ST-2
Fit for AODES DesertCross 1000-3
Fit for AODES Desertcross 1000-6 HVAC 2023
Fit for AODES Pathcross 800
Fit for AODES Pathcross 1000

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

Package includes:
1x 5-Pin 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: 55222456682

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Size: 16 Fl Oz (Pack of 1), Style: Individual
Best stuff on the market and fast delivery
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Reviewed in the United States on November 6, 2025
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Amazon Customer
Waukegan, US
★★★★★ 5
Does what it says
Size: 16 Fl Oz (Pack of 1), Style: Individual
Have a JD 280 and it was not running well at all. Surging, not running good overall, where as previously it was. I used this and after a few hours of running, it cleared up very well and runs like a "Deere" now. Product line is still, one of the best out there. Bought again for my chain saw and use it in my weed wacker too.
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Reviewed in the United States on July 7, 2025
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M. Chulick
Charlottesville, US
★★★★★ 4
Delivered quickly
Size: 16 Fl Oz (Pack of 1), Style: Individual
Just trying to keep my small engines running with this awful California fuel
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Reviewed in the United States on December 4, 2025
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Shopper scott
Belleville, US
★★★★★ 5
Good buy
Fit great. I have a toro 7.25 Brigs & Stratton 21 icnh rececyler. Mower started up great
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Reviewed in the United States on May 8, 2026

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