TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side

The TRQ PSA04178 steering knuckle assembly set includes front driver-side and passenger-side assemblies. Its listed application spans specified rear-wheel-drive Chrysler 300 and Dodge Charger models, plus selected Dodge Challenger trims, so confirm the exact vehicle and brake-code fitment before ordering.

At a glance

Kit is described as one front driver-side assembly and one front passenger-side assembly.
Manufacturer describes the components as pre-assembled direct replacements intended to install without modifications.
Fitment information specifies certain Chrysler 300, Dodge Charger and Dodge Challenger applications, with brake-code conditions on listed applications.
TRQ lists a limited lifetime warranty against defects in materials and workmanship when used as intended, with exclusions.

Price

$190.30Save 15%

Reference price: ~~$224.95~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Both front sides are covered by the stated two-piece kit, avoiding a separate purchase for the opposite side.
Pre-assembled assemblies may reduce component preparation compared with assembling separate parts, according to the listing.
The listed vehicle applications and reference numbers provide useful fitment checks before purchase.

Cons

The fitment is vehicle- and configuration-specific, including stated rear-wheel-drive and brake-code restrictions for applications in the listing.

Technical specifications

9 specifications

Identity
Brand	TRQ
Model	TRQ PSA04178 2 Piece Steering Knuckle Assembly Set
Manufacturer part number	PSA04178
Position	Front
Exterior	Machined

Application and references
OEM part numbers	5181895AD, 5181896AD
Reference numbers	5181895AD; 5181896AD; 686-388; 686-389

Dimensions and installation
Weight listed	32.6 pounds
Package dimensions	24 x 14.5 x 14.3 inches

What to know before buying

Verify year, model, trim, drivetrain and brake code against the manufacturer's compatibility chart before purchase. The stated warranty excludes normal wear and tear, misuse, abuse and unauthorized modification.

Who is it for?

A good fit for

Owners replacing both front steering knuckles on a listed compatible Chrysler 300, Dodge Charger or Dodge Challenger.
Buyers matching an existing part against the listed OEM and reference numbers.

Less suited to

Buyers unable to confirm their vehicle's exact application, including required drivetrain or brake code.
Shoppers seeking a general-purpose steering component rather than a vehicle-specific assembly.

TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side · photo 2 — Additional product photo 2

Frequently asked questions

What is included in the TRQ PSA04178 set?

The listing says it includes one front driver-side steering knuckle assembly and one front passenger-side assembly.

Which vehicles does the listing identify?

It names specified Chrysler 300 and Dodge Charger rear-wheel-drive applications from 2015–2023, and various Dodge Challenger applications from 2015–2023. Many listed applications specify brake code BR4. Confirm the complete fitment chart for your vehicle.

What reference numbers are listed?

The listing gives OEM numbers 5181895AD and 5181896AD, plus references 686-388 and 686-389.

What warranty is stated?

The listing states a limited lifetime warranty against defects in materials and workmanship when used as intended. It excludes normal wear and tear, misuse, abuse and unauthorized modification.