AUTO PART
Dorman OE Solutions Expansion Tank 603-963
Expansion Tank, OE Solutions
Manufacturer Part Number603-963
Part TypeExpansion Tank
Vehicle Focus (not verified fitment)2021 Mazda CX-5
BrandDorman OE Solutions
Verified vehicle applications are listed below. Match your exact vehicle configuration before ordering.
Confirm year, make, model, engine and drivetrain before ordering.
Confirm year, make, model, engine and drivetrain before ordering.
Part Specifications
| California Proposition 65 | WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov |
|---|---|
| Cap Included | Yes |
| Cap Type | Flip Top |
| Capacity | 850 ML ML |
| Color | Black |
| Height | 7.42 IN |
| Length | 9.235 IN |
| Level Sensor Included | No |
| Material | Plastic |
| Mounting Brackets Included | Yes |
| Mounting Hardware Included | No |
| Mounting Hole Quantity | 2 |
| Package Contents | 1 Cap |
| Package Contents | 1 Engine Coolant Reservoir |
| Package Contents | 1 Tube |
| Pressurized | No |
| Prop65 | Cancer and Reproductive |
| Shape | Irregular |
Verified Vehicle Fitment
Make: Mazda
Model: 4 verified models — see exact combinations below.
Years: 2013–2021 — varies by model and configuration.
Check before ordering: Match the year, make, model, position, and every engine, transmission or other restriction in the same row. Listed years do not apply to every model.
View vehicle applications (8 configuration groups)
| Years | Make | Model | Position | Engine / transmission / notes |
|---|---|---|---|---|
| 2017–2018 | Mazda | 3 | Front | Built in Japan |
| 2014–2016 | Mazda | 3 | Front | No additional restrictions supplied; confirm exact configuration. |
| 2017–2018 | Mazda | 3 Sport | Front | Built in Japan |
| 2014–2016 | Mazda | 3 Sport | Front | No additional restrictions supplied; confirm exact configuration. |
| 2014–2017 | Mazda | 6 | Front | No additional restrictions supplied; confirm exact configuration. |
| 2018–2021 | Mazda | 6 | Front | Aspiration: Normal |
| 2013–2018 | Mazda | CX-5 | Front | No additional restrictions supplied; confirm exact configuration. |
| 2019–2021 | Mazda | CX-5 | Front | Aspiration: Normal |
Source: supplier-verified applications for Dorman OE Solutions 603-963. A vehicle not listed is not confirmed compatible.
Shop more parts for your vehicle
Browse these vehicle parts pages, then check the restrictions on each product. Not every part on a vehicle page fits every engine or configuration.
Mazda 3
Mazda 3 Sport
Mazda 6
Mazda CX-5
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