2Bros Parts

STARTER MOTOR WR450F WRF, 5TJ-81890-00-00, 5TJ-81890-20-, SMU0349

£168.77

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STARTER MOTOR WR450F WRF ARROWHEAD SMU0349. PMDD; 12-Volt; CW; 9-Spline, Rotation CW. SIZE: 147mm OAL; 11.3mm Gear OD; 29.8mm Registration OD; 23.6mm Drive Shaft Length; 16.3mm Registration Height with O-ring; (2) 7mm Unthreaded Mounting Holes; 5mm x 0.8 Threaded Tab B+. Part No. 19-1878.AR. Cross reference numbers: RICKS 61-413, LESTER 18844, SMU0349, 5TJ-81890-00-00, 5TJ-81890-10-00, 5TJ-81890-20-00, MX-01302, STY0349, YS-37N, 18844, 410-54140.

Specifications
SKU
19-1878.AR
Brand
Arrowhead Electrical
Availability
In Stock (2)

Fitments (4)

MakeModelYear
YAMAHAWR 450F2003
YAMAHAWR 450F2004
YAMAHAWR 450F2005
YAMAHAWR 450F2006
General Product Group
Ignition & Electrical Parts
General Product Type
Starter Motor
Variant Id
226015
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Arrowhead Electrical Starter Motor for Yamaha WR450F

This high-quality starter motor is designed as a replacement for your Yamaha WR450F. Engineered for reliability and performance, it ensures your motorcycle starts efficiently every time.

Key Features:

  • Type: PMDD (Permanent Magnet Direct Drive)
  • Voltage: 12-Volt
  • Rotation: Clockwise (CW)
  • Gear Spline Count: 9-Spline
  • Dimensions:
    • Overall Length (OAL): 147mm
    • Gear Outside Diameter (OD): 11.3mm
    • Registration Outside Diameter (OD): 29.8mm
    • Drive Shaft Length: 23.6mm
    • Registration Height (with O-ring): 16.3mm
  • Mounting: (2) 7mm Unthreaded Mounting Holes
  • Electrical Connection: 5mm x 0.8 Threaded Tab B+

This starter motor is manufactured by Arrowhead Electrical, a trusted name in powersports electrical components. It is designed to meet or exceed original equipment specifications, providing a dependable solution for your starting needs.

Cross-Reference Part Numbers:

  • RICKS 61-413
  • LESTER 18844
  • SMU0349
  • 5TJ-81890-00-00
  • 5TJ-81890-10-00
  • 5TJ-81890-20-00
  • MX-01302
  • STY0349
  • YS-37N
  • 18844
  • 410-54140
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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

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More answers in our FAQ.

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