Starter Compatible with Honda TRX90 FourTrax Sportrax 90 86cc Air-Cooled SOHC 4-Stroke 2006-2025 TRX90X TRX90EX Youth ATV 31210HP Replaces 31210-HP2-671

HONDA TRX90X SPORTRAX 90 X ATV:
• TRX90X Sportrax 90 X 86cc Air-Cooled SOHC 2-Valve 4-Stroke (2009)
• TRX90X 86cc Air-Cooled SOHC 2-Valve 4-Stroke Single-Cylinder (2012-2025)

HONDA TRX90EX SPORTRAX 90 EX ATV:
• TRX90EX Sportrax 90 EX 86cc Air-Cooled SOHC 2-Valve 4-Stroke (2007-2008)

HONDA TRX90 SPORTRAX 90 FOURTRAX ATV:
• TRX90 Sportrax 90 FourTrax 86cc Air-Cooled SOHC 2-Valve 4-Stroke (2006)

OEM PART NUMBERS:
• Honda: 31210-HP2-671 / 31210HP2671
• Mitsuba: SM05

HONDA TRX90X / TRX90EX SPORTRAX - Starter Motor PMGR:
New starter motor for Honda TRX90X, TRX90EX, and TRX90 Sportrax 90 youth ATV series. Mitsuba PMGR (Permanent Magnet Gear Reduction) design with 12V CCW rotation and 12-tooth pinion gear. Covers all Honda TRX90 variants from 2006 through 2025 including the original FourTrax designation (2006), the EX model (2007-2008), and the current X model (2009-2025). Fits the 86cc air-cooled SOHC single-cylinder 4-stroke engine with electric start and automatic clutch. Lightweight at just 2 lbs. Direct OEM Honda replacement.

⚠️ IMPORTANT: Verify OEM part number before ordering to ensure proper fitment.