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OE Quality
60-Day Returns
DormanPart #: 540-164
Dorman 540-164 Suspension Knuckle Bushing - Rear Lower
21 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$68.70Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Buick and Cadillac, Envision, LaCrosse, Regal Sportback, Regal TourX, and XT4
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Dorman 540-164 Suspension Knuckle Bushing - Rear Lower
| Brand | Dorman |
|---|---|
| Part Number | 540-164 |
| Material | Caucho |
| Material | Élastomère |
| Material | Rubber |
| Wall Thickness | 29.62 |
| Length | 76.5 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Inside Diameter | 19 |
| Washer Included | No |
| Washer Included | Non |
| Outside Diameter | 62.2 |
| Mounting Hardware Included | No |
| Mounting Hardware Included | Non |
| Universal Or Specific Fit | Específico |
| Universal Or Specific Fit | Specific |
| Grade Type | Reemplazo estándar |
| Grade Type | Standard replacement |
| Attachment Method | Buje |
| Attachment Method | Bushing |
| Bushing Quantity | 0 |
| Arandela incluida | No |
| Contenidos del paquete | 1 buje |
| Package Contents | 1 bushing |
| Washer Included | No |
| Washer Included | Non |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 2025 | Buick | Envision | Rear Lower | At Control Arm | |
| 2025 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2024 | Buick | Envision | Rear Lower | At Control Arm | |
| 2024 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2023 | Buick | Envision | Rear Lower | At Control Arm | |
| 2023 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2022 | Buick | Envision | Rear Lower | At Control Arm | |
| 2022 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2021 | Buick | Envision | Rear Lower | At Control Arm | |
| 2021 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2020 | Buick | Regal Sportback | AWD | Rear Lower | At Control Arm |
| 2020 | Buick | Regal TourX | Rear Lower | At Control Arm | |
| 2020 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2019 | Buick | LaCrosse | Rear Lower | At Control Arm | |
| 2019 | Buick | Regal Sportback | AWD | Rear Lower | At Control Arm |
| 2019 | Buick | Regal TourX | Rear Lower | At Control Arm | |
| 2019 | Cadillac | XT4 | Rear Lower | At Control Arm | |
| 2018 | Buick | LaCrosse | Rear Lower | At Control Arm | |
| 2018 | Buick | Regal Sportback | AWD | Rear Lower | At Control Arm |
| 2018 | Buick | Regal TourX | Rear Lower | At Control Arm | |
| 2017 | Buick | LaCrosse | Rear Lower | At Control Arm |
* 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:
42803050428030518419621884196219
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.