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Starter Motor for Kawasaki Ninja 400 EX400 Z400 2018–2023 | OEM 21163-0782
Starter Motor for Kawasaki Ninja 400 EX400 Z400 2018–2023 | OEM 21163-0782
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Product Overview
Restore reliable starting performance to your Kawasaki motorcycle with this 9-tooth electric starter motor, designed for select Kawasaki Ninja 400 / EX400 and Z400 / ER400 models.
Built to replace OEM reference numbers 21163-0782 and 21163-0794, this starter motor helps solve common starting problems such as slow cranking, no-start issues, starter clicking without turning the engine, weak starter engagement, or failure of the original electric starter motor.
Manufactured with a durable metal housing, carbon brush design, and heavy-duty internal motor components, this starter motor is built to deliver dependable starting power for daily street riding, sport riding, and regular start-stop use.
Product Compatibility
This 9T CCW electric starter motor is compatible with the following Kawasaki models:
| Brand | Model | Engine / CC | Year Range | Notes |
|---|---|---|---|---|
| Kawasaki | Ninja 400 / EX400 | 400cc | 2018–2022 | Confirmed OEM 21163-0782 applications |
| Kawasaki | Ninja 400 ABS / EX400 ABS | 400cc | 2018–2022 | Includes select ABS / KRT Edition models |
| Kawasaki | Z400 / ER400 | 400cc | 2019–2022 | Confirm OEM 21163-0782 / 21163-0794 |
| Kawasaki | Z400 ABS / ER400 ABS | 400cc | 2019–2022 | Confirm OEM number before ordering |
| Kawasaki | Ninja 400 / EX400 | 400cc | 2023–2024 | Possible fitment; verify OEM and dimensions |
| Kawasaki | Z400 / ER400 | 400cc | 2023 | Possible fitment; verify OEM and dimensions |
OEM Cross Reference
21163-0782, 21163-0794
Specifications
| Specification | Details |
|---|---|
| Part Type | Electric Starter Motor |
| Voltage | 12V |
| Tooth Count | 9 Teeth |
| Rotation | CCW / Counterclockwise |
| Power Rating | Approx. 480W |
| Max Torque Speed | Approx. 5500 RPM |
| Brush Type | Carbon Brush |
| Surface Finish | Heavy Duty Metal Finish |
| Material | Metal housing with internal motor components |
| Condition | 100% New Aftermarket |
| Fitment Type | Direct Replacement |
| Installation | Installation instructions not included |
Key Features
- Direct Replacement Design – Engineered to replace the original Kawasaki starter motor with matching 9-tooth fitment on compatible Ninja 400, EX400, Z400, and ER400 models.
- Reliable Starting Performance – Helps restore strong cranking power when the original starter motor becomes weak, noisy, intermittent, or fails to engage.
- 9T CCW Configuration – Built with a 9-tooth drive and counterclockwise rotation for compatible Kawasaki 400cc motorcycle applications.
- Durable Motor Construction – Made with a heavy-duty metal housing, carbon brush design, and dependable internal components for long service life.
- Straightforward Installation – Designed for direct replacement when the OEM number, mounting points, tooth count, and connector match.
- Built for Street and Sport Riding – Suitable for daily commuting, weekend riding, and regular start-stop motorcycle use.
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Fitment FAQ
Will this part fit my specific model and year?
This starter motor is intended for Kawasaki Ninja 400 EX400 Z400 2018–2023. It is best matched to original part number(s) 21163-0782, 21163-0794. Key physical/spec details from the product data include Voltage: 12V, Tooth Count: 9 Teeth, 9 Teeth. Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. Match your original part number to 21163-0782, 21163-0794 before purchase. For this starter motor, also compare the OEM number, voltage, tooth count, rotation direction, mounting ears, bolt spacing, terminal type, and overall length. This is especially important for Kawasaki EX400/Z400 models because similar model names can use different parts by year or trim.
What models or situations does this part not fit?
Do not order this starter motor for machines outside the listed compatibility, or for units with different tooth counts, CW/CCW rotation, mounting ears, terminal locations, or voltage ratings. If your original part number does not cross-reference with 21163-0782, 21163-0794, treat the fitment as unconfirmed. Model years outside 2018–2023, 2018–2022, 2019–2022, 2023–2024, 2018 should be verified separately. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the OEM number, voltage, tooth count, rotation direction, mounting ears, bolt spacing, terminal type, and overall length. Confirm OEM/cross-reference number(s): 21163-0782, 21163-0794. Recheck listed specs such as Voltage: 12V, Tooth Count: 9 Teeth, 9 Teeth. If any connector, mounting point, size, or year detail is different, confirm fitment before installation.