Rear Wheel Bearing and Hub Assembly 512518 - Reliable Fit for Subaru

Our review of the Rear Wheel Bearing and Hub Assembly 512518 focuses on everyday Subaru owners who need a dependable, direct-replacement rear hub. The bottom line: this hub is a practical, value-oriented option for Forester, Impreza and Crosstrek models when fitment is correct. It stands out for its high-grade alloy steel construction and pre-greased setup, which simplify installation and aim to restore wheel stability and reduce wobble, making it a sensible choice for drivers seeking a quality replacement without premium pricing.

Key Features

• Vehicle fitment: Compatible with multiple Subaru Forester, Impreza and Crosstrek model years, providing a direct-replacement hub for many common rear axle applications.
• Material quality: Crafted from high-grade alloy steel, the assembly is designed to meet automaker benchmarks for strength and durability in routine driving conditions.
• Pre-greased unit: Ships pre-greased so installers save time and the bearing receives correct lubrication from the start, reducing initial break-in noise risk.
• Stability improvement: Engineered to reduce wheel wobble and improve alignment, which contributes to steadier handling at speed and during cornering.
• 5-lug design: The 5-lug wheel stud pattern and 4-hole flange match factory mounting hardware for compatible models, limiting the need for additional parts.
• Tested components: Bearings and seals are tested by engineers and field personnel to validate fit and performance under normal driving conditions.

Who It's For

This hub assembly is best for DIY mechanics and independent shops replacing a worn rear hub on Subaru Forester 2014-2018, Impreza 2012-2021, and Crosstrek 2013-2021 where the 5-lug, non-sensor rear hub is required. It is suitable for owners who want a competitively priced, pre-greased unit that aims to restore driving stability and reduce noise when properly matched to the vehicle.

Those who should look elsewhere include owners who need a hub with an integrated speed sensor or who have models outside the listed fitment years. Also, if a vehicle has nonstandard studs or aftermarket suspension changes, verify compatibility before purchase.

Pros & Cons

Pros

• Solid alloy steel construction offers a durable replacement for routine driving needs.
• Pre-greased bearing saves installation time and helps ensure correct initial lubrication.
• Broad fitment across several Subaru models makes it versatile for common repairs.
• Designed to improve wheel stability and reduce wobble when correctly installed.

Cons

• Does not include a speed sensor, so it is not suitable for vehicles that require an integrated sensor.
• Some buyers report mixed fit and stud quality issues, so careful fit verification is recommended before installation.

Specifications

Position	Rear left and right
Wheel stud quantity	5-Lug
Flange type	4-Hole flange
Speed sensor included	No
Pre-greased	Yes
Reference part numbers	28473FJ020, 512518
Material	High-grade alloy steel

Our Verdict

The Rear Wheel Bearing and Hub Assembly 512518 is a practical replacement for compatible Subaru Forester, Impreza and Crosstrek owners who need a pre-greased, alloy steel hub to restore stability and handling. It represents good value when fitment is confirmed, but confirm that no speed sensor is required and check stud compatibility to avoid surprises during installation.

Frequently Asked Questions

Will this hub work with vehicles that need a wheel speed sensor?
No. This assembly does not include a speed sensor, so it is not suitable where an integrated sensor is required.

Does it come pre-greased?
Yes. The unit ships pre-greased to simplify installation and initial operation.

Which Subaru models are compatible?
Compatible models include Forester 2014-2018, Impreza 2012-2021, Crosstrek 2013-2021 per the listed fitment; always verify against your VIN and wheel stud pattern before purchase.