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NSK 40BWD20 Wheel Bearing - Front or Rear
| Brand | NSK 40BWD20 |
|---|---|
| Position | Front and Rear |
| ABS Equipped | Yes |
| ABS Type - Tone Ring, Sensor, Magnetic Encoder | Magnetic encoder |
| Generation | 1 |
| Inside Diameter | 40 |
| Outside Diameter | 78 |
| Width, Outer Race | 40 |
| Fits | Buick and Chevrolet · 44 vehicles |
OE technology. Vehicle-specific fit, form, and performance for a precise replacement.
Low-friction design. Superfinished raceway helps promote smooth rotation and reduced wear.
Sealed for life. Multi-lip sealing and all-weather grease help resist contamination.
Wheel Bearing Overview
NSK 40BWD20 is an ABS-equipped wheel bearing built with a magnetic encoder and sealed-for-life construction. It is a fitment-based replacement for select Buick, Chevrolet, and Chevrolet Trax applications, with OE-style performance and low-friction operation.
Key Features
- ABS-equipped wheel bearing with a magnetic encoder for sensor signal integration.
- Premium OE technology with vehicle-specific fit, form, and performance.
- Superfinished, precision-matched bearing raceway for reduced friction.
- Advanced multi-lip sealing for resistance to water and contamination.
- Sealed-for-life design with premium all-weather grease for zero maintenance.
Detailed Description
NSK 40BWD20 is engineered as a wheel bearing for ABS-equipped applications that require a magnetic encoder type. The bearing uses premium OE technology, a low-friction raceway, and multi-lip sealing to support smooth rotation and consistent sensor response in demanding driving conditions. This part number, 40BWD20, is listed for 2012-2020 Chevrolet Sonic front, 2013-2020 Buick Encore front and rear, 2015-2020 Chevrolet Trax front and rear, 2014-2016 Chevrolet Spark EV front, and 2021-2022 Buick Encore rear and Chevrolet Trax rear. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Uses
- Wheel noise or rough rotation from a worn bearing.
- ABS warning concerns related to encoder-equipped bearing service.
- Contamination damage from failed sealing.
- Excess friction that affects hub smoothness and bearing life.
Installation Notes
Verify ABS type, dimensions, and vehicle position before installation. Confirm the bearing matches the required 40 mm inside diameter, 78 mm outside diameter, and 40 mm outer race width. Use the exact fitment listing for the correct Buick Encore, Chevrolet Sonic, Chevrolet Trax, or Chevrolet Spark EV application.
Quality Assurance
NSK is a global bearing manufacturer and an OE supplier to major automobile manufacturers and suppliers. The 40BWD20 is built for long bearing life and stable operating performance in demanding conditions.
| Year | Make | Model | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2022 | Buick | Encore | AWD | — | — | — | Rear | NSK IS THE O.E. MANUFACTURER |
| 2022 | Chevrolet | Trax | AWD | — | — | — | Rear | NSK IS THE O.E. MANUFACTURER |
| 2021 | Buick | Encore | AWD | — | — | — | Rear | NSK IS THE O.E. MANUFACTURER |
| 2021 | Chevrolet | Trax | AWD | — | — | — | Rear | NSK IS THE O.E. MANUFACTURER |
| 2020 | Buick | Encore | — | — | — | — | Front | — |
| 2020 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2020 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2020 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2020 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2019 | Buick | Encore | — | — | — | — | Front | — |
| 2019 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2019 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2019 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2019 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2018 | Buick | Encore | — | — | — | — | Front | — |
| 2018 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2018 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2018 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2018 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2017 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2017 | Buick | Encore | — | — | — | — | Front | — |
| 2017 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2017 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2017 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2016 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2016 | Buick | Encore | — | — | — | — | Front | — |
| 2016 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2016 | Chevrolet | Spark EV | — | -L | -- | ELECTRIC | Front | — |
| 2016 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2016 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2015 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2015 | Buick | Encore | — | — | — | — | Front | — |
| 2015 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2015 | Chevrolet | Spark EV | — | -L | -- | ELECTRIC | Front | — |
| 2015 | Chevrolet | Trax | AWD | — | — | — | Rear | — |
| 2015 | Chevrolet | Trax | — | — | — | — | Front | — |
| 2014 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2014 | Buick | Encore | — | — | — | — | Front | — |
| 2014 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2014 | Chevrolet | Spark EV | — | -L | -- | ELECTRIC | Front | — |
| 2013 | Buick | Encore | AWD | — | — | — | Rear | — |
| 2013 | Buick | Encore | — | — | — | — | Front | — |
| 2013 | Chevrolet | Sonic | — | — | — | — | Front | — |
| 2012 | Chevrolet | Sonic | — | — | — | — | Front | — |
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