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Sierra 18-1970-2 Exhaust Manifold Elbow

by Sierra
Save $153.01 Save $153.01
Original price $325.00
Original price $325.00 - Original price $325.00
Original price $325.00
Current price $171.99
$171.99 - $171.99
Current price $171.99

Sierra 18-1970-2 Exhaust Manifold Elbow

  • Sierra exhaust elbow
  • Fits Mercruiser GM 185; 200; 205; 228; 230; 260; 330; 340; and 898 model engines
  • For 3 in. ID hose
  • 15 degree down angle
  • 3 1/2 in. x 3 1/8 in. bolt pattern
  • Includes 18-0897 restrictor gasket and brass plugs
  • For use with Sierra 18-1952-1; 18-1953-2; and 18-1957-2 manifolds
  • Mounting kit P/N 18-8529 – sold separately
  • Replaces Sierra 18-1970 and 18-1970-1
  • Replaces Mercury 95755A2; 98503A2; and 98504A3
  • Replaces Barr MC-20-98504
  • Replaces Marine Power 0992-15
  • Replaces Mallory 9-40557

This riser is used on most Mercruiser V-6; V-8; and Big Block applications from 1983 to 2002; where a 3 inch outlet risers is used (measured on the I.D. of the exhaust hose) with 15° down angle. OE Replacement: 98504A3; 98503 and Osco 8503A Will accept original Mercruiser oil filter bracket. Includes all pipe plugs fits either side. 3 Year Warranty. NOTE: Replaces OEM part # MERCURY MARINE 98504A3 For: V-6 & V-8 applications 15° (3" O.D. Riser) Comes with 18-0897 & brass plugs Use with: Manifold: 18-1952-1; 18-1953-1; 18-1957-1 Elbow Gasket: 18-0897 restrictor; 18-2849 open; 18-0672 blocked Mounting Kit: 18-8529 or if spacer is included use 18-8554