1973 Mercury Montego equipped with 7.5L V8 Gas OHV, 7.0L V8 Gas OHV, 6.6L V8 Gas OHV, 5.8L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
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with Harrison A-6 A/C Compressor
1973 Mercury Montego equipped with 7.5L V8 Gas OHV, 7.0L V8 Gas OHV, 6.6L V8 Gas OHV, 5.8L V8 Gas OHV, 5.0L V8 Gas OHV, 4.1L L6 Gas OHV
with Harrison A-6 A/C Compressor