High Performance Fuel Pressure Regulator For Volvo Penta And Mercruiser Marine Engines 4.3L 5.0L 5.7L Replaces Mercruiser 2149831 21491831 885174 And Volvo Penta 3858967 Fits Most 4.3 5.0 5.7 Not 8.1

Marine Fuel Regulator for 4.3/5.0/5.7L Engines 1 Unit
✔️ Replaces Mercruiser 2149831/21491831/885174 and Volvo 3858967

This fuel pressure regulator is a replacement part for Volvo Penta and Mercruiser marine engines, typically used on boats with 4.3L, 5.0L, or 5.7L displacements to maintain stable fuel pressure.

✅ Replaces Mercruiser 2149831, 21491831, 885174 and Volvo Penta 3858967
✅ Fits most 4.3L, 5.0L, and 5.7L marine engines (not 8.1)
✅ New fuel pressure regulator design for steady fuel flow
✅ Ready for easy swap with OEM-like fit and hoses compatibility

💡 What is a fuel pressure regulator used for in marine engines?

• Maintains consistent pressure to fuel injectors across RPMs.
• Prevents lean or rich conditions to protect engine and fuel system.
• Improves throttle response and idle quality on boats using Mercruiser or Volvo Penta systems.
• Supports reliable operation for 4.3/5.0/5.7L configurations.