About Quality:

UMPARTS supplies the top quality products in the market. We guarantee 100% money back if you are not satisfy with the quality.

About After Sales Service:

We have a frien...

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About Quality:

UMPARTS supplies the top quality products in the market. We guarantee 100% money back if you are not satisfy with the quality.

About After Sales Service:

We have a friendly and dedicated support teams to handle any problems you come up with our products. Please contact us first via email or message for replacement, refund or technical problem caused by any reason. We promised you won't lose one cent on shopping with UMPARTS.

About UMPARTS:

UMPARTS was established in 2015. We are the fastest growing company who specialized on scooter aftermarket parts. We design and manufacture parts for scooter, ATV, mini bike, and motorcycle with Japanese OEM Standard.



  • Direct Replacement for Honda FourTrax TRX 300EX 1993 - 2004
  • Direct Replacement for Honda FourTrax TRX 400EX 1999, 2000, 2001, 2002, 2003, 2004
  • Direct Replacement for Honda SportTrax TRX 400EX 2004, 2005, 2006, 2007
  • Direct replacement for Honda Solenoid with MPN: 35850-HM3-000, 35850-HB3-771, or 35850-HM8-000.
  • Since may 2018, our solenoid has been upgraded to a premium quality copper wire and longer loop, which has a stronger magnetic switch mechanic and way better durability than the previous version solenoids. The standard price is 12.99. Now is only 9.95.
  • Direct Replacement for Honda FourTrax TRX 300EX 1993 - 2004
  • Direct Replacement for Honda FourTrax TRX 400EX 1999, 2000, 2001, 2002, 2003, 2004
  • Direct Replacement for Honda SportTrax TRX 400EX 2004, 2005, 2006, 2007
  • Direct replacement for Honda Solenoid with MPN: 35850-HM3-000, 35850-HB3-771, or 35850-HM8-000.
  • Since may 2018, our solenoid has been upgraded to a premium quality copper wire and longer loop, which has a stronger magnetic switch mechanic and way better durability than the previous version solenoids. The standard price is 12.99. Now is only 9.95.

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