2 Pack 4 Inch Exhaust Riser Elbow For MerCruiser 8079882A 51140 44354A3 44354A9

Product Overview

This 4-inch exhaust riser elbow (2-pack) is designed for MerCruiser stern drive engines, serving as a direct replacement for worn or corroded elbows. The riser elbow directs exhaust gases from the manifold into the exhaust system, ensuring proper engine performance and cooling.

Key Features & Performance

• Durable construction to withstand high exhaust temperatures and marine environments
• Precision-fit design matches OEM specifications for reliable sealing
• Includes two elbows for a complete port and starboard replacement
• 4-inch diameter opening for standard exhaust system compatibility
• Direct bolt-on replacement – no modifications needed

Fitment & Compatibility

• Compatible with MerCruiser stern drive engines using OEM part numbers 8079882A, 51140, 44354A3, 44354A9
• Fits various MerCruiser models including 4.3L, 5.0L, 5.7L V8 engines (verify serial number)

Common Uses

• Replacing failed exhaust riser elbows on MerCruiser inboard/outboard engines
• Routine maintenance during exhaust system overhaul
• Upgrading from corroded factory elbows for longer service life
• Marine engine rebuilds and restoration projects

Technical Specifications

• Part Number(s): 8079882A, 51140, 44354A3, 44354A9
• Size: 4 inches
• Quantity: 2

Frequently Asked Questions

Q: Will this elbow fit my MerCruiser 5.7L Alpha One? A: This elbow is designed for engines using the listed OEM part numbers. Check your existing part number or consult your engine serial number to confirm compatibility.

Q: Are gaskets included with the 2-pack? A: This listing is for the elbows only. Gaskets and hardware are sold separately to ensure proper sealing fitment.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.