Monroe 172991L Suspension Strut and Coil Spring Assembly - Rear Left

Rear Left Quick-Strut for Corolla

Monroe Quick-Strut Complete Strut Assembly 172991L is a vehicle-specific rear left suspension strut and coil spring assembly for the 2014-2019 Toyota Corolla. It is fit checked and ride tested to help restore factory ride height and ride performance with a single, assembled unit.

The Monroe Quick-Strut line is built for direct replacement applications, combining the strut, coil spring, and mount into one assembly for the rear left position on Toyota Corolla models. Part number 172991L is assembled in Paragould, Arkansas and is engineered around the original suspension layout for the listed vehicles.

Key Features

• Vehicle-specific design for the rear left suspension on 2014-2019 Toyota Corolla
• Complete strut and coil spring assembly for OE-style replacement
• Fit checked and ride tested for application-specific performance
• Engineered to restore factory ride height and ride feel
• Gas charged construction for consistent suspension response
• Mounting hardware included
• Extended length: 16.622 in; compressed length: 12.464 in; travel length: 4.158 in

Product Details

Monroe 172991L is a Quick-Strut Complete Strut Assembly for the rear left side of the Toyota Corolla. It is built as a suspension strut and coil spring assembly with the strut mount integrated, making it a direct-fit replacement for the listed Corolla years. This part cross-references Focus Auto Parts 1345845L and National 710868 for the same application.

What It Helps Address

• Rear suspension sag from worn coil spring and strut components
• Excessive bouncing or reduced damping control
• Uneven rear ride height on a Toyota Corolla
• Noisy or worn rear strut mount and spring assembly
• Loss of original ride quality in the rear left suspension

Installation Notes and Tips

Fits 2014-2019 Toyota Corolla, rear left. Confirm the vehicle’s rear left suspension configuration before installation and compare the original assembly dimensions to the listed compressed length, extended length, and travel length. Because this is a complete assembly, it can reduce the need to transfer individual spring and mount components during replacement.

Quality Assurance

Monroe Quick-Strut assemblies are fit checked and ride tested to support application-specific replacement performance. Part number 172991L is assembled in Paragould, AR and built for the listed Toyota Corolla fitment.