The NGK BPR6FS standard plugs come pre-gapped as specified by your engine manufacturer. It is always recommended to check the gap before installation. Read more..
Model
Serial Number Range(s)
165 (2 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
0B434941-0B774251
170 (2 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
6916779-0B434940
180 (4 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
0B436391-0B775248
190 (4 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
6916779-0B436390
3.7L (2 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
0B774252-Up
3.7LX (4 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
0B775249-Up
470 (2 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
5520115-6218036
470 (2 BBL.) Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
6218037-6916778
470 MIE Mercury 224 I/L4 - 3.7L (224 CU IN) L4 Mercury
5520115-6218036
The NGK BPR6FS standard plugs come pre-gapped as specified by your engine manufacturer. It is always..
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