🔧 Altima - Engine Mount Replacement

Engine mounts hold the engine/transmission in place and absorb vibration. On your Altima there are multiple mounts (right/passenger, left/driver transmission-side, and torque mounts), and the steps + torque specs change depending on which one(s) you’re replacing.

Difficulty Level: Intermediate | Estimated Time: 2-5 hours

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⚠️ Safety & Precautions

• ⚠️ Work on a flat surface and support the car with jack stands—never rely on a jack alone.
• ⚠️ Keep the hybrid system OFF: verify the dash is not in READY mode, remove the key/fob from the car.
• ⚠️ Disconnect the 12V battery negative terminal to prevent an accidental start or fans cycling.
• ⚠️ Support the engine before removing any mount; the engine can drop and damage hoses, wiring, or the radiator.
• ⚠️ Avoid pulling or stressing any orange high-voltage cables (hybrid components).

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🔧 Required Tools

You'll need the following tools for this repair:

• Safety glasses
• Mechanic gloves
• Wheel chocks
• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wood block (2x4)
• Engine support bar (specialty)
• Metric socket set 8mm–19mm
• Metric wrench set 8mm–19mm
• 3/8" drive ratchet
• 1/2" drive breaker bar
• Torque wrench (10–200 Nm range)
• Extensions set (3", 6", 12")
• Universal joint adapter
• Trim clip remover
• Flathead screwdriver
• Penetrating oil
• Paint marker
• Work light

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Right (passenger-side) engine mount - Qty: 1
• Left (driver-side) transmission mount - Qty: 1
• Front torque mount (dogbone mount) - Qty: 1
• Rear torque mount (dogbone mount) - Qty: 1
• Engine mount fastener kit - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear tires.
• Turn the car fully OFF (not READY), remove the key/fob from the cabin.
• Open the trunk and disconnect the 12V battery negative terminal using a 10mm socket.
• Spray visible mount nuts/bolts with penetrating oil and wait 5–10 minutes.
• Please answer these so I can give the correct torque specs and exact steps:
  • Which mount(s) are you replacing: right, left, front torque, rear torque, or all?
  • Do you have an engine support bar, or will you be supporting the engine from underneath with a floor jack + wood block?

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Identify the mount(s) and access path

• Use your phone camera and a work light to locate the mount you’re replacing (right mount is near the passenger-side strut tower; left is near the driver-side frame rail; torque mounts are typically lower and accessed from underneath).
• Reply with which mount(s) you’re doing so I can provide the exact removal order and Torque to XX Nm (YY ft-lbs) values without guessing.
• Mount jobs vary a lot by location.

Step 2: Support the engine (required before loosening mounts)

• If using an engine support bar (specialty), set it across the strut towers and attach the hook/chain to a solid engine lift point, then take up the slack.
• If using a floor jack (rated 3-ton minimum), place a wood block (2x4) on the jack pad, then gently lift under a sturdy flat area of the engine oil pan casting area (light pressure only).
• Use a paint marker to mark mount/bracket positions before removal.

Step 3: Stop here to avoid wrong torque specs

• Different mounts on your Altima use different bolt sizes and torque values.
• Once you tell me which mount(s) you’re replacing, I’ll continue with the exact steps, access panels to remove, and the correct Torque to XX Nm (YY ft-lbs) specs for each fastener.

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✅ After Repair

• Reconnect the 12V battery negative terminal using a 10mm socket.
• Start the car and confirm normal idle and no excessive vibration in Park/Drive (foot on brake).
• Road test at low speed first; listen for clunks on acceleration and braking.
• Recheck the mount fasteners for tightness after a short drive.

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💰 DIY vs Shop Cost

Shop Cost: $500-$1,400 (parts + labor)

DIY Cost: $120-$600 (parts only)

You Save: $380-$800 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.