🔧 Frontier - Engine Mount Replacement

On your Frontier, the engine is supported by a left (driver) and right (passenger) engine mount, and there’s also a separate transmission mount. The exact steps, access points, and torque specs change depending on which mount(s) you’re replacing.

Difficulty Level: Advanced | Estimated Time: 3-6 hours

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⚠️ Safety & Precautions

• ⚠️ Support the engine before loosening any mount fasteners; an unsupported engine can drop suddenly.
• ⚠️ Use jack stands under the frame; never rely on a floor jack alone.
• ⚠️ Do not jack directly on the oil pan; use a wood block on a safe lift point.
• ⚠️ Keep hands clear of pinch points while raising/lowering the engine.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Socket set (metric, 10mm-19mm)
• Wrench set (metric, 10mm-19mm)
• Breaker bar (1/2-inch drive)
• Torque wrench (20-200 ft-lbs range)
• Pry bar (18-inch)
• Wood block (2x6, 12-inch)
• Trim clip remover
• Safety glasses
• Mechanic gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Left (driver) engine mount - Qty: 1
• Right (passenger) engine mount - Qty: 1
• Transmission mount - Qty: 1

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📋 Before You Begin

• Park on level ground, set the parking brake, and chock the rear wheels.
• Raise the front and support the frame on jack stands.
• Plan to support the engine from underneath with a floor jack and a wood block (the wood spreads the load so you don’t dent parts).
• Quick confirmation so I can give you the exact mount access path and torque specs:
• 🔹 Are you replacing both engine mounts, or just left or right?
• 🔹 Are you also replacing the transmission mount, or engine mounts only?

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm which mount(s) you’re doing

• Reply with: Left / Right / Both, and Trans mount: Yes/No.
• Once you confirm, I’ll give you the exact bolt locations, any parts that must be moved on your Frontier, and the correct Torque to XX Nm (YY ft-lbs) values for each fastener.

Step 2: Do not loosen mount bolts yet

• Do not remove any mount nuts/bolts until you have the engine safely supported with the floor jack (rated 3-ton minimum) and wood block (2x6, 12-inch).
• Most mount damage happens during support.

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✅ After Repair

• After installation, verify the engine sits level and nothing is contacting the fan shroud, exhaust, or steering shaft.
• Test drive and listen for clunks on takeoff/shift; recheck fastener tightness if anything feels off.

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💰 DIY vs Shop Cost

Shop Cost: $600-$1,400 (parts + labor)

DIY Cost: $150-$600 (parts only)

You Save: $450-$800 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 3-6 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.