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STG50741 Starter Motor 6K8-81800-10-00 6K8-81800-11-00 6K8-81800-12-00 for Yamaha WJ500 Wave Jammer WR500 Wave Runner 500cc | 12V 0.6kW 11T CCW DD Replacement

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ITEMNO： STG50741

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PRODUCT DETAILS

STG50741 Starter Motor 6K8-81800-10-00 6K8-81800-11-00 6K8-81800-12-00 for Yamaha WJ500 Wave Jammer WR500 Wave Runner 500cc | 12V 0.6kW 11T CCW DD Replacement

Part Numbers

API Marine: S108-102R

ARCO Marine: PWY500

Arrowhead: 410-44110

Hitachi: S108-102 / S108-102A / S108-102B

Lester: 18303

Sierra Marine: 18-6289

Stockers Starters: WY-1

Yamaha: 6K8-81800-10-00 / 6K8-81800-11-00 / 6K8-81800-12-00

Product Description

The STG50741 Starter Motor is an aftermarket replacement starter designed for selected Yamaha 500cc personal watercraft (PWC), including the WJ500 Wave Jammer and WR500 Wave Runner models from 1987 to 1993.

Featuring a 12V electrical system, 0.6kW output, an 11-tooth pinion, counterclockwise (CCW) rotation, and a direct-drive (DD) design, this starter is intended for compatible Yamaha marine engine applications.

It cross-references Yamaha OEM numbers 6K8-81800-10-00, 6K8-81800-11-00, and 6K8-81800-12-00, along with multiple marine aftermarket references.

Before ordering, compare the original starter part number, mounting arrangement, and electrical connections to confirm compatibility.

Product Specifications

Specification	Details
Product SKU	STG50741
Product Type	Starter Motor
Unit Type	Starter
Item Condition	New Aftermarket Part
Application Type	Personal Watercraft (PWC)
Voltage	12V
Power Output	0.6kW
Rotation Direction	Counterclockwise (CCW)
Number of Pinion Teeth	11T
Starter Type	Direct Drive (DD)
Compatible Engine Displacement	500cc
Estimated Net Weight	2.0kg

OEM / Cross Reference Numbers

Brand / Category	Part Numbers
API Marine	S108-102R
ARCO Marine	PWY500
Arrowhead	410-44110
Hitachi	S108-102 / S108-102A / S108-102B
Lester	18303
Sierra Marine	18-6289
Stockers Starters	WY-1
Yamaha	6K8-81800-10-00 / 6K8-81800-11-00 / 6K8-81800-12-00

Compatible Applications

Make	Equipment Type	Model	Year	Engine
Yamaha	Personal Watercraft	WJ500 Wave Jammer	1987	500cc
Yamaha	Personal Watercraft	WJ500 Wave Jammer	1988	500cc
Yamaha	Personal Watercraft	WJ500 Wave Jammer	1989	500cc
Yamaha	Personal Watercraft	WJ500 Wave Jammer	1990	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1987	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1988	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1989	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1990	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1991	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1992	500cc
Yamaha	Personal Watercraft	WR500 Wave Runner	1993	500cc

PRODUCT HIGHLIGHTS

Product Highlights

Reliable Marine Starting	Direct-Drive Construction	Yamaha OEM Cross-Reference
12V, 0.6kW output for compatible 500cc PWC engines	11-tooth pinion with counterclockwise rotation	Replaces listed Yamaha 6K8-81800 series starter numbers and compatible aftermarket references

SHIPPING

Item Details

Processing Time Orders are processed within 1-3 business days after payment confirmation

Shipping Methods DHL/UPS/ FedEx/ TNT/ Air Freight/ Sea Freight

Estimated Delivery Time Express shipping: 3-7 business days, depending on destination

Packaging Export-standard cartons with protective inner packing

Tracking Tracking number will be provided once the order is shipped

Shipping Cost Calculated based on weight, dimensions, and destination

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WARRANTY POLICY

All new aftermarket parts come with a 1-Year warranty. Quality is the first thing we consider. Check out our Warranty Assistance for more details.

SHIPPING POLICY

We offer express and standard shipping options to ensure your off-road machine gets back in action—fast and reliably. For more details, please visit our Shipping Policy .

EASY RETURN POLICY

We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.

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