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NGK Spark Plug DPR6EA-9 (5531) Spark Plugs Sold Each Fits: Mercury/Mariner 9.9 4-stroke 1999-02 15 hp 4-stroke 1998-06 (Mercury) 15 hp 4-stroke 1998-02 (Mariner) 25 hp 4-stroke 1998-01 (Mercury) 25 hp 4-stroke 1998-02 (Mariner) 30 hp 2 cyl 4-stroke 1999-02 40 hp 3 cyl 4-stroke 1998-02 (Mercury) 40 hp 3 cyl 4-stroke 1998-01 (Mariner) 40 hp Big Foot 4 cyl 4-stroke 2001-06 (Mercury) 45 hp Bodensee 4 cyl 4-stroke 1995-02 (Mercury) 45 hp Bodensee 4 cyl 1995-98 (Mariner) 50 hp 4 cyl 4-stroke 1995-01 60 hp 4 cyl 4-stroke 2001 Champion Cross Reference: RA8HC OE: 33-827858
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