How do I confirm pilotpart582931-9396965081336 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Starter Gear Assembly 66T-81857-00-00 for Yamaha Outboard 40HP 45HP 50HP

For Yamaha Bearing, Gear & Shaft

Bearing, Gear & Shaft 66T-81857-00 for Yamaha

Q: What part numbers are associated with this Bearing, Gear & Shaft?

66T-81857-00, 66T-81857-00-00, 45HP, 50HP

OEM / REF: 66T-81857-00SKU: pilotpart582931-9396965081336

Starter Gear Assembly 66T-81857-00-00 for Yamaha Outboard 40HP 45HP 50HP is a Bearing, Gear & Shaft replacement part for Yamaha Transmission & Undercarriage Parts, categorized under Transmission & Undercarriage Parts > Bearing, Gear & Shaft. Use OEM part number 66T-81857-00 and confirm machine model, engine model, a...

Stock: In stock
Condition: New
Fitment: Yamaha Transmission & Undercarriage Parts
Category: Bearing, Gear & Shaft

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$47.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 17 – Aug 24
10	Aug 15 – Aug 22
50	Aug 13 – Aug 20

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Bearing, Gear & Shaft Description

This Bearing, Gear & Shaft is indexed for Yamaha s: Fit For Yamaha Outboard: 40HP, 45HP, 50HP. Compare reference number 66T-81857-00 against the label on your existing Yamaha component before ordering.

Additional cross references on file: 66T-81857-00-00, 45HP, 50HP. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

66T-81857-00 66T-81857-00-0045HP50HP

Applications

Yamaha s: Fit For Yamaha Outboard: 40HP, 45HP, 50HP

Fitment Notes

Brand or application signal: Yamaha Transmission & Undercarriage Parts
Product family: Bearing, Gear & Shaft
System category: Transmission & Undercarriage Parts > Transmission Parts > Bearing, Gear & Shaft
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.