Rear Wheel Bearing and Hub Assembly 5-Lug Low Runout - Quiet Fit

In this review of the MotorbyMotor 512518 rear wheel bearing and hub assembly, the bottom line is simple: this is a direct-replacement hub for many Subaru models that aims to reduce noise with a low-runout design and comes pre-lubricated for longer life. It is best for owners who want an OEM-style replacement that is easy to install and fits specific Forester, Crosstrek and Impreza model ranges. The single biggest reason to consider it is the low-runout construction that addresses annoying wheel noise while offering a straightforward swap for compatible vehicles.

Key Features

• Low-runout design: The hub is manufactured to minimize rotational runout, which helps reduce vibration and annoying wheel noise on fitted Subaru models.
• Direct replacement fit: It fits rear positions on specified 2012-2020 Forester, Crosstrek and Impreza trims so installation follows factory geometry and mounting points.
• Five-lug configuration: The included 5-lug hub matches vehicles that require that bolt pattern, avoiding mismatches at installation.
• Pre-filled premium grease: The assembly ships with premium grease to improve initial performance and enhance protection against wear and rust.
• Precision internal clearances: Machined tolerances control bearing clearance to help maintain correct bearing preload and service life.
• Warranty coverage: The product includes a 10 year warranty, offering long-term reassurance for the replacement part.

Who It's For

This rear hub assembly is for Subaru owners who need a like-for-like rear wheel bearing and hub replacement for compatible Forester, Crosstrek and Impreza years and trims. It is particularly useful for DIYers and independent shops that want a hub that installs without modifying suspension or axle components, and for drivers looking to address wheel noise with a unit marketed as low-runout.

Those who should look elsewhere include owners of non-listed model years or trims, drivers who require an ABS tone ring or different lug configuration, and anyone who needs guaranteed heavy-duty or long-haul performance beyond typical passenger car use given some customer reports of early failure.

Pros & Cons

Pros

• Good direct-fit compatibility for multiple Subaru Rear applications, simplifying replacement.
• Pre-lubricated with premium grease to reduce initial wear and improve corrosion resistance.
• Low-runout focus helps cut down on wheel noise and vibration for a quieter ride.
• Long 10 year warranty provides added ownership confidence.

Cons

• Mixed customer durability reports, with some accounts of premature failure under normal driving mileage.
• Fitment is limited to specific model years and trims, so verification before purchase is essential.

Specifications

Product type	Rear wheel bearing and hub assembly
Bolt pattern	5 lugs
Fitment (selected models)	2014-2018 Forester; 2013-2020 Crosstrek (select trims); 2012-2019 Impreza
Grease	Contains premium grease
Design focus	Low runout / reduced noise
Warranty	10 years

Our Verdict

The MotorbyMotor rear hub assembly is a sensible direct-replacement for owners of compatible Subaru Forester, Crosstrek and Impreza models who prioritize a straightforward install and reduced wheel noise. It offers value through pre-filled grease and a long warranty, but buyers should confirm exact trim compatibility and be aware of mixed durability reports when comparing options.

Frequently Asked Questions

Will this hub fit all Crosstrek and Impreza models?
It fits specific years and trims listed for rear positions; confirm your model year and trim before purchasing.

Does the assembly come ready to install?
Yes, it ships pre-filled with premium grease and is intended as an easy-to-install direct replacement.

Is this unit quieter than a standard hub?
The low-runout manufacturing aims to reduce wheel noise, though real-world results vary and some users report mixed noise and durability experiences.