
Dorman 540-900 Coil Spring Insulator - Rear Upper
Dorman 540-900 Coil Spring Insulator
Dorman 540-900 is a specific-fit coil spring insulator for the rear upper suspension position on select Ford and Lincoln SUVs. Built from rubber/elastomer material, it helps isolate the coil spring from the mounting surface and supports quieter, more controlled suspension operation.
Key Features
- Precision-engineered replacement for the original equipment insulator
- Rubber construction with a round shape for suspension isolation
- Press-on attachment type for the rear upper spring location
- Black finish
- Specific fit for select Ford Expedition and Lincoln Navigator applications
- Part number: 540-900
Detailed Description
This coil spring insulator is made for the rear upper suspension position on 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator models. Dorman 540-900 is built to match the original equipment application on these vehicles, helping maintain proper spring seating and reducing direct contact between suspension components. This part cross-references Ford F75Z5536AA and K160064 for the same application.
What It Helps Address
- Noise from worn or hardened spring isolators
- Metal-to-metal contact at the coil spring seat
- Improper spring cushioning at the rear upper mount
- Suspension vibration transmitted through the spring perch
- Degraded ride quality caused by damaged rubber isolators
Installation Notes and Tips
Compatible With 1997-2002 Ford Expedition, rear upper, and 1998-2002 Lincoln Navigator, rear upper. Verify the spring seat and mounting surface are clean and free of damage before installation. Because this is a press-on style insulator, proper alignment during assembly is important for correct seating. Confirm the part number 540-900 matches the vehicle’s rear upper suspension configuration before service.
Quality Assurance
Dorman states that this coil spring insulator is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment on specific vehicles.
Original: $23.82
-65%$23.82
$8.34Dorman 540-900 Coil Spring Insulator - Rear Upper
Dorman 540-900 Coil Spring Insulator
Dorman 540-900 is a specific-fit coil spring insulator for the rear upper suspension position on select Ford and Lincoln SUVs. Built from rubber/elastomer material, it helps isolate the coil spring from the mounting surface and supports quieter, more controlled suspension operation.
Key Features
- Precision-engineered replacement for the original equipment insulator
- Rubber construction with a round shape for suspension isolation
- Press-on attachment type for the rear upper spring location
- Black finish
- Specific fit for select Ford Expedition and Lincoln Navigator applications
- Part number: 540-900
Detailed Description
This coil spring insulator is made for the rear upper suspension position on 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator models. Dorman 540-900 is built to match the original equipment application on these vehicles, helping maintain proper spring seating and reducing direct contact between suspension components. This part cross-references Ford F75Z5536AA and K160064 for the same application.
What It Helps Address
- Noise from worn or hardened spring isolators
- Metal-to-metal contact at the coil spring seat
- Improper spring cushioning at the rear upper mount
- Suspension vibration transmitted through the spring perch
- Degraded ride quality caused by damaged rubber isolators
Installation Notes and Tips
Compatible With 1997-2002 Ford Expedition, rear upper, and 1998-2002 Lincoln Navigator, rear upper. Verify the spring seat and mounting surface are clean and free of damage before installation. Because this is a press-on style insulator, proper alignment during assembly is important for correct seating. Confirm the part number 540-900 matches the vehicle’s rear upper suspension configuration before service.
Quality Assurance
Dorman states that this coil spring insulator is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment on specific vehicles.
Product Information
Product Information
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Description
Dorman 540-900 Coil Spring Insulator
Dorman 540-900 is a specific-fit coil spring insulator for the rear upper suspension position on select Ford and Lincoln SUVs. Built from rubber/elastomer material, it helps isolate the coil spring from the mounting surface and supports quieter, more controlled suspension operation.
Key Features
- Precision-engineered replacement for the original equipment insulator
- Rubber construction with a round shape for suspension isolation
- Press-on attachment type for the rear upper spring location
- Black finish
- Specific fit for select Ford Expedition and Lincoln Navigator applications
- Part number: 540-900
Detailed Description
This coil spring insulator is made for the rear upper suspension position on 1997-2002 Ford Expedition and 1998-2002 Lincoln Navigator models. Dorman 540-900 is built to match the original equipment application on these vehicles, helping maintain proper spring seating and reducing direct contact between suspension components. This part cross-references Ford F75Z5536AA and K160064 for the same application.
What It Helps Address
- Noise from worn or hardened spring isolators
- Metal-to-metal contact at the coil spring seat
- Improper spring cushioning at the rear upper mount
- Suspension vibration transmitted through the spring perch
- Degraded ride quality caused by damaged rubber isolators
Installation Notes and Tips
Compatible With 1997-2002 Ford Expedition, rear upper, and 1998-2002 Lincoln Navigator, rear upper. Verify the spring seat and mounting surface are clean and free of damage before installation. Because this is a press-on style insulator, proper alignment during assembly is important for correct seating. Confirm the part number 540-900 matches the vehicle’s rear upper suspension configuration before service.
Quality Assurance
Dorman states that this coil spring insulator is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment on specific vehicles.












