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Starter Motor for Honda CB400 Hawk CB450SC Nighthawk CM400 CM450 1978-1986 12V

Starter Motor for Honda CB400 Hawk CB450SC Nighthawk CM400 CM450 1978-1986 12V

410-54250

£409.80 GBP
£491.76 GBP £409.80 GBP
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Free shipping over £150. Terms apply

Honda 400/450 Starter Motor

Premium Replacement for Nighthawk, Hawk & CM Series (1978-1986)

Restore the reliable ignition of your classic Honda twin with this premium aftermarket starter motor. Engineered specifically for the 400cc and 450cc engines found in the legendary Nighthawk and Hawk series, this unit provides the high-torque performance required to kick over your engine in all weather conditions.

Whether you are restoring a vintage CM400 cruiser or maintaining a daily-driven CB450SC, this starter motor offers a cost-effective alternative to expensive OEM units without sacrificing build quality. Each unit features upgraded internal components including high-quality magnets and brushes for a longer service life compared to standard budget replacements.

DIRECT FIT / KEY SELLING POINT: Designed as a "drop-in" replacement with no modifications required to your engine case or wiring harness.

Key Features

  • ✔ Enhanced Durability: Double-sealed housings to keep out moisture and debris.
  • ✔ OEM Specs: Manufactured to match original Denso/Honda mounting dimensions.
  • ✔ High Torque: Optimized windings for fast, efficient engine turnover.

Technical Specs

Voltage: 12V
Rotation: CCW (Counter-Clockwise)
Splines: 31-Spline Shaft
Starter Type: PMDD

Vehicle Fitment Guide

Make Model Year Range
Honda CB400 Hawk / T / TI / TII 1978 - 1981
Honda CB450SC Nighthawk 1982 - 1986
Honda CM400A / CM400C / CM400E / CM400T 1979 - 1981
Honda CM450A / CM450C / CM450E 1982 - 1983

OEM Part Number Cross Reference

Honda: 31200-447-008, 31200-447-018
Denso: 128000-0530
Lester: 18606
Mitsuba: SM-8

Frequently Asked Questions

Will this fit the automatic (Hondamatic) versions?

Yes, this starter is compatible with both the CM400A and CM450A Hondamatic models, as well as the standard manual shift versions.

Does it come with the O-ring?

Most of our units are supplied with a pre-installed sealing O-ring for a leak-free installation into the engine case.

Note: Please verify your vehicle model and year before purchasing.

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Shipping calculated at checkout. Free shipping over £150. Terms apply