Code4040050
Operation Code: 4040050
Standard Labor Map: Engine Mount Replacement
About This Operation Code
When you see 4040050 on your mechanic's quote or invoice, it refers to the standardized automotive industry code for Engine Mount Replacement. Mechanical shops use these codes to lookup predefined labor times (guided by Alldata or Mitchell 1).
Engine mounts are rubber and metal components that secure the engine to the chassis and absorb vibration.
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Standardized Labor
Shop labor rates range from $120–$250/hour depending on your city. Using 4040050 prevents a mechanic from charging "made up" times.
Average Total Cost (Labor + Parts)
~$200-$500 each (parts $50-$150, labor $150-$350; varies by mount location and difficulty)
*Based on 2026 national averages for engine mount replacement.
View Full Pricing Guide →⚠️ Beware Overlap Labor
Dishonest shops often double-dip labor when billing multiple Op Codes. For example, if parts must be removed to access Engine Mount Replacement, they shouldn't bill full Book Time for both codes.
Recommending multiple engine/transmission mounts when maybe only one is bad (shops might say “might as well do all” - sometimes valid if all aged, but often one fails before others); using expensive OEM mounts when aftermarket could be much cheaper; diagnosing a vibration as mounts when it could be something else (e.g. misfire).
Scan Quote for Overlap →