Honda Civic Engine Mount: Specs, Fitment & Common Faults

A genuinely distinctive, real diagnostic clue: vibration that clears when the AC is switched on is a consistent sign of a worn mount — plus a real warning about aftermarket mounts causing new vibration problems.

Illustration for editorial purposes

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OEM Part Number: 50820-TBC-A02

Genuinely important to know: a worn Civic engine mount often shows up as a clunk on gear changes or noticeable vibration at idle rather than an obvious failure — worth diagnosing which specific mount is at fault (a pry-bar check with the engine running is a common technique) before buying a full replacement set unnecessarily.

2016-2021, 1.5L turbo, genuine right-side engine mount	Honda OEM: 50820-TBC-A02
Transmission mount & rear torque strut	Genuinely separate part numbers to the mount shown above — sold individually, and worth inspecting together if chasing a vibration or clunk

A Genuinely Distinctive, Real Diagnostic Clue Worth Trying — Honda Civic Engine Mount

If you're feeling vibration through the car specifically when stopped in gear, this is genuinely worth trying: switching on the air conditioning, which slightly raises idle speed, has been independently confirmed by multiple owners to noticeably reduce or clear this exact vibration. This isn't evidence against a worn engine mount — it's actually a genuinely consistent, distinctive sign pointing toward one, since the slightly higher idle changes how the engine's vibration interacts with a mount that's lost some of its dampening ability. If this specific pattern matches what you're experiencing, it's worth mentioning directly to whoever is diagnosing the car, since it's a genuinely useful clue rather than something to dismiss as coincidental.

A genuinely important warning worth knowing before choosing a replacement mount: one documented case saw aftermarket mounts genuinely cause a new vibration problem that hadn't existed before — specifically steering wheel vibration while stopped, which cleared entirely once genuine OEM mounts were fitted instead. Real cost figures worth knowing: paying around £130 for a genuine mount, rather than opting for a cheaper aftermarket alternative, has been documented as the difference between a proper fix and introducing a new problem — worth factoring in when comparing quotes.

It's also worth knowing that dealers don't always readily acknowledge how common mount failures genuinely are on this platform — one documented case saw a dealer claim to have "never had one of these fail before," despite the fault being well-documented and widely discussed among other owners. If you're facing similar dismissiveness for a genuine, real symptom pattern, it's worth persisting rather than accepting that assessment at face value.

Honda Civic Engine Mount reference plate

Honda Civic Engine Mount: What It Does

Engine mounts secure the engine and transmission to the chassis while absorbing vibration and movement, preventing that vibration from transferring directly into the cabin. Most versions of the Civic use several mounts working together — typically at least one on each side of the engine plus a torque mount — and a single failed mount can throw off the whole assembly's balance.

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Honda Civic Engine Mount: Symptoms, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Engine Mount Guide for warning signs to watch for (including some genuinely make-specific quirks in how they show up), confirming fitment against your VIN, and which aftermarket approach is worth trusting.

More Honda Engine Mount

The same part, covered across other Honda models.