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STG50497 Starter Motor 410-54140 5TJ-81890-00-00 5TJ-81890-10-00 5TJ-81890-20-00 for Yamaha WR450F WR450 449cc 2003-2006 12V 9T PMDD Replacement

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PRODUCT DETAILS

STG50497 Starter Motor 410-54140 5TJ-81890-00-00 5TJ-81890-10-00 5TJ-81890-20-00 for Yamaha WR450F WR450 449cc 2003-2006 12V 9T PMDD Replacement

Part Numbers

Yamaha: 5TJ-81890-00-00 / 5TJ-81890-10-00 / 5TJ-81890-20-00

Arrowhead: 410-54140 / SMU0349

J&N Electrical Products: 410-54140

EMS: YS-37 / YS-37N

Hi-Level: STY0349

Lester: 18844

PIC: 191-248 / 191-248A / 191-248B

Societa Generale Ricambi: 17.81123

Product Description

The STG50497 Starter Motor is a 100% new aftermarket replacement starter designed for Yamaha WR450F and WR450 449cc dirt bikes from 2003 through 2006.

Featuring a 12V electrical system, 9-tooth pinion, clockwise rotation and permanent magnet direct drive (PMDD) design, this starter provides reliable starting performance for off-road motorcycle applications.

The starter cross-references Yamaha 5TJ-81890-00-00, 5TJ-81890-10-00 and 5TJ-81890-20-00, as well as 410-54140, SMU0349, 18844 and other aftermarket reference numbers.

Product Specifications

Specification	Details
Product Type	Starter Motor
Item Condition	Aftermarket Part
Condition	New
Starter Type	Permanent Magnet Direct Drive (PMDD)
Voltage	12V
Rotation Direction	Clockwise (CW)
Number of Teeth	9T
Overall Length	147 mm
Gear Outside Diameter	11.3 mm
Registration Outside Diameter	29.8 mm
Drive Shaft Length	23.6 mm
Registration Height with O-Ring	16.3 mm
Mounting Holes	2
Mount Hole Diameter	7 mm
Mount Hole Type	Unthreaded
B+ Terminal	5 mm × 0.8 Threaded Tab
Estimated Net Weight	Approx. 1 kg

OEM / Cross Reference Table

Brand	Reference Numbers
Yamaha	5TJ-81890-00-00, 5TJ-81890-10-00, 5TJ-81890-20-00
Arrowhead	410-54140, SMU0349
J&N Electrical Products	410-54140
EMS	YS-37, YS-37N
Hi-Level	STY0349
Lester	18844
PIC	191-248, 191-248A, 191-248B
Societa Generale Ricambi	17.81123

Compatible Applications

Brand	Model / Application	Engine	Year
Yamaha	WR450F	449cc	2003
Yamaha	WR450F	449cc	2004
Yamaha	WR450F	449cc	2005
Yamaha	WR450F	449cc	2006
Yamaha	WR450	449cc	2003–2006

PRODUCT HIGHLIGHTS

Product Highlights

Reliable Motorcycle Starting	Direct OEM Cross Reference	Compact PMDD Design
12V, 9-tooth and clockwise rotation provide dependable starting performance for the Yamaha 449cc engine.	Replaces Yamaha 5TJ-81890-00-00, 5TJ-81890-10-00 and 5TJ-81890-20-00, plus 410-54140 and SMU0349.	PMDD design with 147 mm overall length, 11.3 mm gear OD and two 7 mm unthreaded mounting holes.

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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