Sierra 18-1975-1 MerCruiser Marine Exhaust Riser Elbow 120 140 3.0LX 12076A2

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New exhaust riser/elbow for MerCruiser marine gas engines. Fits many 1982 and newer MerCruiser 120, 140, and 3.0LX 4-cylinder engines with round style riser. Please use part number cross reference below to assure fitment. This riser only uses 2 bolts to fasten it down (not 4). Comes with gasket and bolt set and new bellow with hose clamps. Each purchase is for one riser.

Riser mating bolt dimensions are 3-1/16" (77.8mm) by 2-13/16" (71.4mm) bolt center-to-center.

This part is new and high-quality cast iron construction. To determine if this is the correct replacement for you, look on your current part for casting numbers and match them to the cross reference below:

Cross Reference	Part Number
MerCruiser	12076, 12076 A2
Osco Motors	2076
Barr Marine	MC-20-12076
Sierra Marine	18-1975
Aqua Power	5726
GLM Products	51160

About Sierra
Sierra provides premium-quality aftermarket replacements for over 6,000 marine parts, tools, and components. Sierra products are engineered to meet or exceed OEM standards, and stand up in harsh marine environments. Every new Sierra part comes with a limited lifetime warranty that covers the useful life of the product against any defects in workmanship and materials.