911 (84-89), 964 Turbo 3.3 (91-92) Oil feed pipe to chain tensioner, right. Also for earlier models when converted to hydraulic fed chain tensioners.
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All 911 (78-98), 911Turbo/GT2 (01-12) Spring oil pressure relief valve, in right crankcase half
All 911 (72-94) Oil filter red, original Porsche classic. (964 only non turbo models)
911 (65-89), 964 (89-93), 993 (93-97) Gasket carter breather cover