How long does it take a mechanic to replace engine mounts?
In most passenger cars, replacing a single engine mount typically takes about 1 to 2 hours of labor; two mounts usually require 2 to 4 hours; three or four mounts can take 3 to 6 hours or more, depending on the vehicle and access.
Engine mounts secure the engine to the chassis and damp vibration. Replacing them requires lifting or supporting the engine, gaining access to tight fasteners, and often removing nearby components such as shields or exhaust pieces. Time estimates vary by model, drivetrain layout, and the number of mounts involved. The following outlines typical ranges and the main factors that influence how long the job will take.
Typical time ranges by number of engine mounts
Below are general ranges shops use when estimating labor time for mounting replacements. Exact figures depend on vehicle design and local shop practices.
- One engine mount: typically 1 to 2 hours of labor.
- Two engine mounts: about 2 to 4 hours.
- Three or four engine mounts: 3 to 6+ hours.
Note that some vehicles, especially those with complex layouts or limited access, can take longer. Conversely, straightforward designs on common cars may fall at the lower end of these ranges. Always consult a shop for a model-specific estimate.
What factors affect the duration
These are the main elements that can speed up or slow down engine mount replacement times.
- Number and type of mounts, and which ones must be replaced (front vs rear or left vs right).
- Engine accessibility and clearance around the mounts, including any subframes, exhaust, or manifold components that must be moved or removed.
- Whether heat shields, belts, pulleys, or transmission crossmembers need to be removed to access fasteners.
- Need for engine support equipment (engine hoist, support bars) and the risk of engine movement if not properly secured.
- Vehicle design and layout (transverse engine mounts, turbo setups, or all-wheel-drive platforms can complicate access).
- Bolts and fasteners: corrosion or seized hardware can add significant time to remove and replace.
- Shop equipment and technician experience: lifts vs. floor jacks, torque tools, and familiarity with the specific vehicle.
These factors help explain why two similar cars can have noticeably different repair times. A well-run shop will provide a clear quote up front and flag any potential issues before work begins.
Getting an accurate estimate
Ask for a written estimate that lists labor hours, parts, and any anticipated extra work. Provide the exact make, model, engine, and whether OEM or aftermarket mounts are preferred. If you notice vibrations, clunks, or misalignment in the months leading up to the service, share these symptoms so the technician can plan appropriately and avoid surprises on the invoice.
Summary
Engine mount replacement times center on how many mounts are involved and how accessible they are. Rough guidance places single-mount jobs at about 1–2 hours, two-mount jobs at 2–4 hours, and three or four mounts at 3–6 hours or more, with real-world results varying by vehicle design and conditions. Always secure a detailed quote, understand what’s included, and plan for potential additional time if the car requires extra disassembly or encounter difficult fasteners.
