STARTER MOTOR WR450F WRF, 5TJ-81890-00-00, 5TJ-81890-20-00, SMU0349
4.1 Trustpilot 99.9% positive on eBay
Delivery to United States 5–8 business days
Spread the cost with 
Yamaha WRF WR450F starter motor. PMDD, 12-Volt, CW, 9-Spline. Rotation CW. Dimensions: 147mm OAL, 11.3mm Gear OD, 29.8mm Registration OD, 23.6mm Drive Shaft Length, 16.3mm Registration Height with O-ring. Features (2) 7mm Unthreaded Mounting Holes and 5mm x 0.8 Threaded Tab B+. Part Numbers: 5TJ-81890-00-00, 5TJ-81890-20-00, SMU0349. Cross-reference numbers: RICKS 61-413, LESTER 18844, MX-01302, STY0349, YS-37N, 18844, 410-54140.
- SKU
- 19-1878.DR
- Brand
- Arrowhead Electrical
- Availability
- In Stock (1)
Fitments (4)
| Make | Model | Year |
|---|---|---|
| YAMAHA | WR 450F | 2003 |
| YAMAHA | WR 450F | 2004 |
| YAMAHA | WR 450F | 2005 |
| YAMAHA | WR 450F | 2006 |
- General Product Group
- Ignition & Electrical Parts
- General Product Type
- Starter Motor
- Variant Id
- 297979
FULL DESCRIPTION
Yamaha WRF WR450F Starter Motor
This high-quality starter motor is a direct replacement for your Yamaha WRF WR450F motorcycle. Designed to meet or exceed OEM specifications, it ensures reliable starting power and is built to handle increased power loads.
Key Features:
- 12-Volt system
- Clockwise (CW) rotation
- 9-Spline gear
- 147mm Overall Length (OAL)
- 11.3mm Gear Outer Diameter (OD)
- 29.8mm Registration Outer Diameter (OD)
- 23.6mm Drive Shaft Length
- 16.3mm Registration Height with O-ring
- (2) 7mm Unthreaded Mounting Holes
- 5mm x 0.8 Threaded B+ Tab
- Matches original equipment in appearance
- All electrical parts are factory tested before shipping
Note: Due to the nature of electrical components, this part is non-returnable and has no warranty.
Cross Reference Numbers:
- SMU0349
- RICKS 61-413
- LESTER 18844
- 5TJ-81890-00-00
- 5TJ-81890-10-00
- 5TJ-81890-20-00
- MX-01302
- STY0349
- YS-37N
- 18844
- 410-54140
QUESTIONS? JUST ASK
Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).
Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.
Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.
More answers in our FAQ.
Trade pricing available
Buying parts for your business? Apply for a 2BrosParts trade account.