MC-20-864591 Mercruiser 8" Riser Hatch & Port Gaskets - Over 80 years of

- Over 80 years of spark plug expertise by NGK

durable stainless steel construction

P/N Length (B) Thickness (A) Thread Length (C) Width (D) Thread 165013 76mm 10mm 35mm 25mm M8 165014 90mm 10mm 50mm 25mm M8 165016 115mm 10mm 75mm 25mm M8 165017 140mm 10mm 100mm 25mm M8

Straight exhaust adapter

- Get accurate readings with GPS technology

MC-20-864591 Mercruiser 8" Riser Hatch & Port Gaskets - Over 80 years ofBARR MC 20 864591 Mercruiser V6 4. 3L 8" Dry Joint Elbow Direct replacement elbow riser used in 14 dry joint applications 8" Height for Mercruiser V6 4. 3L applications R eplaces 864591T02 See MC 20 864309 for 6 1 2" height with 7 angle riser BARR risers include plugs, gaskets and mouting hardware to mount to manifold