Powerflex PFF5-5452 Engine Mount Inserts - BMW M340i G20/G21 B58 - Set

Engine mount insert set for the BMW M340i G20 Saloon and G21 Touring with the 3.0-litre B58 engine. Powerflex PFF5-5452 supports the voids in the retained original engine mounts. Choose the red Road Series reference or the harder Black Series alternative.B58 engine and original mount checkMatch the manufacturer-listed original mount references 22116860465 and 22116860466. This listing covers the specified M340i G20/G21 application, not every B58-powered BMW. It is not an application for four-cylinder G20/G21 cars or the S58-powered G80 M3.Road Series versus Black Series PFF5-5452: red 65A polyurethane for standard or mildly tuned road-car priorities. PFF5-5452BLK: black 95A polyurethane for firmer track-oriented mounting control. Restricting engine mount movement can increase vibration transmitted into the body, particularly at idle. The harder version should be selected with that comfort trade-off in mind, not simply because it is labelled an upgrade.Set quantity and what is retainedThe displayed price covers the manufacturer-listed two-mount vehicle quantity. These are insert components for the existing engine mounts, not two complete replacement hydraulic mounts, transmission mounts or differential bushes.Inspect the original mounts first. Inserts support serviceable original rubber; they do not repair failed rubber or a defective complete mount.Related G20/G21 chassis upgradesFor the separate front radius-arm mounting position, compare the PFF5-2501 non-adjustable bushes and PFF5-2501G caster-adjustable pair.Use the manufacturer's fitting instructions and appropriate engine support. Browse the Powerflex range. Confirm the installed engine and mount references before purchase; there is no blanket fitment guarantee.