For most vehicles, replacing a single engine mount at a shop typically takes about 1 to 3 hours; if two mounts are involved or access is difficult, plan for 3 to 6 hours, and potential delays for seized hardware or additional work.
Engine mounts secure the engine to the chassis and dampen vibrations. Replacing them requires lifting the engine or using supports, removing nearby components, and ensuring proper alignment. Time estimates vary by vehicle design, the number and type of mounts, and whether additional components must be removed for access. This article provides a general guide to typical repair times, what affects them, and how to plan for a repair.
What affects the repair time
Several factors influence how long it takes to replace a motor mount. Understanding these helps set expectations for a repair quote.
Number of mounts and their location
Single front engine mount on a straightforward layout is usually quicker than replacing all engine, transmission, and torque-strut mounts in a V-configured engine.
- One mount in accessible location: generally 1–3 hours.
- Two or more mounts or complex layouts: often 3–6 hours.
- Rare cases with difficult access or special vehicles: longer than 6 hours.
Conclusion: The number and location of mounts are major time drivers; ensure the shop quotes per mount or per job.
Access, tools, and engine support
Time varies with how easily mechanics can reach bolts, whether the engine must be supported, and whether special tools or a hoist are needed.
- Engine is easily accessible: faster work.
- Needs engine support, removal of accessory belts, exhaust, or intake ducts: adds time.
- Seized or rusted fasteners: can significantly extend duration or require extra steps.
Conclusion: Access and hardware condition can turn a quick job into a longer one.
Typical time ranges by scenario
The following ranges reflect common shop estimates for car types and configurations. Actual times depend on your specific vehicle and shop practices.
- Single engine mount on a typical front-wheel-drive car: 1–3 hours.
- Two engine mounts on a typical car: 2–4 hours.
- Three mounts or a challenging layout (V6/V8, transverse engines, or AWD): 3–6 hours.
- Luxury or performance vehicles with complex mounts or corrosive hardware: 4–8+ hours.
Conclusion: Use these ranges as a planning guide; always get a detailed written estimate before work begins.
What to expect at a shop vs. DIY
Labor availability, equipment, and experience affect timing. A seasoned mechanic with proper lifting equipment may stay closer to the lower end, while DIY projects in a home garage can take longer due to space and tool access.
Summary
In short, expect about 1–3 hours for a single motor mount replacement on an average car at a shop, with 3–6 hours for two mounts or more complex setups. Complex engines and difficult access can stretch the job beyond six hours. Always obtain a written estimate and factor in potential extra time for components that may need replacement or for seized hardware.