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Magneto Stator for Yamaha Moto-4 225 (1986-1988) & 250 (1989-1991) | 59V-85510-20
Magneto Stator for Yamaha Moto-4 225 (1986-1988) & 250 (1989-1991) | 59V-85510-20
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Heavy-Duty Magneto Stator for Yamaha Moto-4 225 & 250
Restore your vintage Yamaha’s electrical reliability. This premium aftermarket Magneto Stator is a precision-engineered replacement for the Yamaha Moto-4 series. Designed for the 1986–1991 production years, it provides the stable electrical output required for reliable starting, strong ignition, and consistent battery charging on the trail or the farm.
Manufactured with high-temperature resistant copper wire and premium insulating materials, this stator is built to survive the intense heat and vibration of Yamaha’s air-cooled engines. Its direct plug-and-play design matches the factory 93mm specifications exactly, ensuring a straightforward installation that gets your ATV back to work without complex modifications.
Product Compatibility
- Yamaha Moto-4 225 (YFM225): 1986, 1987, 1988
- Yamaha Moto-4 250 (YFM250): 1989, 1990, 1991
- OEM Cross-Reference: 59V-85510-20, 59V-85510-20-00
Key Technical Specifications:
- Outer Diameter: 93mm (3.66")
- Inner Diameter: 35mm (1.37")
- Thickness: 15mm (0.59")
- Material: High-purity copper windings with premium grade insulation
- Design: Direct-fit factory-style connectors
Why Choose This Stator?
- Stable Power Output: Delivers a consistent current flow, ensuring your ignition system stays strong and your battery remains charged during long rides.
- Long-Lasting Durability: The high-grade copper and insulation are specifically chosen to prevent internal short-circuiting, a common failure point in original stators of this age.
- Easy Installation: Engineered as a direct replacement
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Fitment FAQ
Will this part fit my specific model and year?
This magneto stator is intended for Yamaha Moto-4 225 (YFM225): 1986, 1987, 1988; Yamaha Moto-4 250 (YFM250): 1989, 1990, 1991; OEM Cross-Reference: 59V-85510-20, 59V-85510-20-00. Listed year information includes 1986–1988, 1989–1991, 1986–1991, 1986, 1988. It is best matched to original part number(s) 59V-85510-20, 59V-85510-20-00, 1986-1988, 1989-1991. Key physical/spec details from the product data include Outer Diameter: 93mm (3. 66"), Inner Diameter: 35mm (1. 37"), Thickness: 15mm (0. 59"). 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 59V-85510-20, 59V-85510-20-00, 1986-1988, 1989-1991 before purchase. For this magneto stator, also compare the OEM number, outer/inner diameter, core height or thickness, plug shape, wire count, mounting holes, pickup position, and rubber grommet style. This is especially important for Yamaha YFM225/YFM250 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 magneto stator for machines outside the listed compatibility, or for units with different plug layouts, pickup-coil positions, wire counts, stator diameters, or charging/ignition configurations. If your original part number does not cross-reference with 59V-85510-20, 59V-85510-20-00, 1986-1988, 1989-1991, treat the fitment as unconfirmed. Model years outside 1986–1988, 1989–1991, 1986–1991, 1986, 1988 should be verified separately. 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, outer/inner diameter, core height or thickness, plug shape, wire count, mounting holes, pickup position, and rubber grommet style. Confirm OEM/cross-reference number(s): 59V-85510-20, 59V-85510-20-00, 1986-1988, 1989-1991. Recheck listed specs such as Outer Diameter: 93mm (3. 66"), Inner Diameter: 35mm (1. 37"), Thickness: 15mm (0. 59"). If any connector, mounting point, size, or year detail is different, confirm fitment before installation.