MG MGB Oil Filter Cannister type GFE121/ 1137334/ Purolator Micronic L17200. GFE121 part number is for reference only. These are the original style MGB Oil Filters which don't have an anti drainback valve, designed to be mounted 'underslung' with the open end at the top, they can be fitted to all MGB's & oil pressure should be built up before revving the engine.
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