# 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.

- [Original product page](https://best-deals.pro/product/trq-psa04178-front-steering-knuckle-set)
- [View offer](https://best-deals.pro/visit/trq-psa04178-front-steering-knuckle-set)
- Market: US
- Language: en-US
- Currency: USD
- Brand: TRQ
- Model: TRQ PSA04178 2 Piece Steering Knuckle Assembly Set
- Category: Cars & Motorcycles > Auto Parts & Maintenance > Mechanical Parts
- Price: 190.30 USD
- Previous price: 224.95 USD
- Discount: 15%
- Price checked: 2026-11-14T05:36:50.536Z

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## 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

## Before you buy

- 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.

## 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.

## 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.

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## Images

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 1](https://best-deals.pro/i/IW07lRvsuQlEi2O5rB7RvWBIwkvFrXq7hdLkNIldBVN11AO78f50ovraJpS2QN8XXAHdmjOiEleefhGPQvINiu48EFbFCSlnRU4IGvhMCQSlTefA5SpDu6tp.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 2](https://best-deals.pro/i/2myKsqiA5GKEDujMNTA1EQJZUhZr5-kPxkIMH72yaLlXKm2egRENY4dve3VHdC9CNLLwtNUMPhiphGqepKdjbdBtRlnnxokDSj9DzR3HSAPHbTFpvP2gqYFw.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 3](https://best-deals.pro/i/xUYtOtUdMXxHQ9UYsCYEx_Oxo-eBnuqjFgFNocX3jVx6j6aOIxtI-JJEu_-5NkvRjd6OGH5eOKDd-OoximkK6EP5C-g1QrZsYn40EdwLW7Da57bjPt9jTge1.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 4](https://best-deals.pro/i/xrVwQv46uP3tQ7gWQlQ-sM-nevzRz3Ug2EF9rmTXFSLDJiKTGznV0aLilr3Cza0WNw_LLipcVdCq75AzxWINmdNoaZkxp7SvtrYVqALdjwcYW-WiZZdOgkwx.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 5](https://best-deals.pro/i/R6jDBgVILvzV2B0rVIjwacESb-nb96ZVhMKBR8Xdw9a3tHECo14XQvETQtacqMqs_LM5LXZ7PCpQ2RVQFL0m-frsWz2rR3RbOFPjYbafBrwhTynbPOzLwBxo.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 6](https://best-deals.pro/i/PSzEKWeQk2xq8oj1wV5ut9k4n7bPnrqXzTPlyv4ia7uJuPWT6Fgr9_rDiWLz6tT16n01ptoQdHoy_ytOEzxJdCNUA8ztPvseAY-efcTMDI9etR3mf0Lw9Tr2.jpg)

![TRQ PSA04178 Front Steering Knuckle Set, Driver and Passenger Side — 7](https://best-deals.pro/i/d9lsekXE-fqYOr6XQT82LSwH9h7Pj9ZZGV72tMu9PxDEkV30SltmTVyEWsCS7VrJto3-sIVk2wA5Cd_94xCszJLpYH23CN94uFajAPZlZ6JPRPXFaVhPpYrF.jpg)