Parts for your 1998 Toyota Crown-Engine mount

1998 Toyota Crown engine-mount — what it does and when to replace it

Engine mounts are absolutely fitted to the 1998 Toyota Crown. Technical sources that document this include Toyota’s Electronic Parts Catalog (EPC) for the S150-series Crown (1995–1999, e.g., JZS151/JZS155), which lists left and right “engine mounting insulator” parts under Toyota’s 12361/12362 numbering groups, plus the related brackets. The Toyota Crown Repair Manual (EM and SF sections) also outlines engine-mount removal/installation and NVH diagnosis procedures for these models. Together, those factory sources confirm the 1998 Crown uses conventional rubber/hydraulic engine mounts, with a separate rear transmission mount.

On a ’98 Crown, the engine-mounts keep the inline-six sitting at the correct height and angle, soak up vibration, and tame the fore–aft rocking that happens when taking off, shifting, or backing off. That isolation means less buzz through the cabin, less stress on the exhaust, hoses and wiring, and better driveline alignment so the gearbox and tailshaft aren’t copping extra load.

Over time, rubber perishes and hydraulic mounts can weep their internal fluid. Typical signs a Crown’s mounts are on the way out include:

• Noticeable vibration at idle that eases off with a few revs
• Clunks or thuds on take-off, gear changes, or when shifting between Drive and Reverse
• Excessive engine movement under the bonnet, or a sagging engine height
• Visible cracks, separated rubber, or fluid leakage from a mount

There’s no fixed interval, but many owners see 150,000–250,000 km before mounts tire out, depending on age, heat, and how the car’s been driven. When replacement time comes, it’s smart to do them as a pair (left and right) and inspect the rear transmission mount too. A typical service approach is to support the engine safely with a jack and timber block, remove the through-bolts and mount-to-bracket nuts, then lift the engine just enough to swap each mount. Final tightening should be done at normal ride height, and all fasteners should be torqued to the spec in the Toyota manual. If any bolts or nuts look stretched or corroded, replace them.

Handy tips:

• Choose quality OEM or equivalent hydraulic mounts for proper NVH control
• After fitting, recheck clearances around the fan shroud, exhaust and steering shaft
• If vibrations persist, confirm idle quality and ignition/engine tune are spot-on

Popular questions about 1998 Toyota Crown engine-mounts

How can someone tell the 1998 Toyota Crown needs new engine-mounts?
They’ll often feel more vibration at idle, hear a clunk when selecting Drive or Reverse, or notice the engine shifting around under load. A quick visual check for cracked rubber or fluid seepage on the mounts is a giveaway.

Should both engine-mounts be replaced together?
Yes, it’s best practice. If one mount has collapsed, the other won’t be far behind, and replacing them as a pair keeps engine height and alignment even, restoring smoothness properly.

Are there different mounts for different Crown engines?
There can be variations across engines and trim within the S150 series. Toyota’s EPC lists the exact left/right insulator part numbers by VIN/engine code, so matching by build details ensures the correct fit.