OE Quality
60-Day Returns

Dorman 540-161 Suspension Knuckle Bushing - Rear Lower
OE-Style Rear Lower Bushing for Cadillac CTS
Dorman 540-161 is a suspension knuckle bushing built as a standard replacement for the original equipment part on select Cadillac CTS applications. It uses steel and rubber construction to restore the rear lower trailing arm mounting point with a direct-fit service part.
Key Features
- Precision-engineered suspension knuckle bushing for OE-style replacement
- Steel and rubber construction for the rear lower suspension location
- Black and silver finish
- Standard replacement grade for service repair
- Fits select 2008-2015 Cadillac CTS rear lower trailing arm bushing applications
Product Details
This Dorman suspension knuckle bushing, part number 540-161, is made for rear lower trailing arm bushing service on Cadillac CTS models. It is engineered and tested to replace the original equipment bushing on specific vehicles, helping maintain the suspension connection at the knuckle and trailing arm interface. For buyers searching for a Cadillac CTS rear lower trailing arm bushing or Dorman 540-161 replacement, this part provides a direct service solution for the listed applications.
This part cross-references MOOG Chassis Products K200641 for the same application.
What It Helps Address
- Excess movement at the rear lower suspension mounting point
- Worn rubber causing looseness or degraded suspension feel
- Noise from a deteriorated trailing arm bushing
- Suspension alignment changes related to bushing wear
- Service replacement for a damaged Cadillac CTS knuckle bushing
Installation Notes and Tips
Verify vehicle year and rear lower position before installation. This bushing does not include mounting hardware. Because suspension bushings are press-fit service components, proper removal and installation tools are recommended to avoid damage to the knuckle or trailing arm assembly. Confirm inside diameter, outside diameter, and length against the original part before service.
Quality Assurance
Dorman states this suspension knuckle bushing is precision-engineered and rigorously tested for reliable replacement on the specified vehicles. It is supplied as a standard replacement part for select Cadillac CTS rear lower trailing arm bushing applications.
| Brand | Dorman |
| Part Number | 540-161 |
| Material | Acero, goma |
| Material | Rubber |
| Material | Steel |
| Length | 46 |
| Color | Black |
| Color | Negro |
| Color | Plateado |
| Color | Silver |
| Inside Diameter | 14.5 |
| Outside Diameter | 41.4 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Contenidos del paquete | 1 buje |
| Package Contents | 1 bushing |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2015 | Cadillac | CTS | Coupe | Rear Lower | Trailing Arm Bushing |
| 2014 | Cadillac | CTS | Wagon | Rear Lower | |
| 2013 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing | |
| 2012 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing | |
| 2011 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing | |
| 2010 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing | |
| 2009 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing | |
| 2008 | Cadillac | CTS | Rear Lower | Trailing Arm Bushing |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.