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Filler Neck Inner 275500316
0L engines used a comletely different head that had different ports that is NOT interchangeable in any way with a 2
42673C1 - Generally didn't have the mounting bosses
What makes them different is the mounting brackets and wire length
MerCruiser 84-73153A1 Wiring Engine Wire Harness 470 3.7L 224CID 4cyl 1976-1979 Boat Cleats Filler Neck Inner 275500316Parts Included MerCruiser 84 73153A1 Wiring Harness Assembly Superseded to 84 86675A2 (Which was the 1980 1982 model's wiring harness) Includes circuit breaker & mounting plate as pictured. Item Details & Compatibility These parts were used from 1976 1979 on pretty much all of the MerCruiser 3. 7L 4cyl "470" models from this time period. Overall Good condition. Some of the wire ends have been cut, but most of everything should be here. 1976 1977 1978