883166A2 Aftermarket Volvo Penta Four Bolt Reservoir | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket MerCruiser / Volvo Penta Four-Bolt Trim-Pump Reservoir - Part Number: 883166A2

Four-bolt replacement hydraulic-fluid reservoir for compatible MerCruiser and Volvo Penta trim-pump assemblies, including Volvo Penta reservoir reference 3861570.

⚙️ Key Features

• Four-bolt reservoir flange

• Approximate 97 mm reservoir style

• Moulded translucent fluid tank

• Direct replacement for cracked, stained or leaking reservoirs

• Used with the matching pump-body O-ring and filler cap

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 883166A2 → MerCruiser service reference

• 3861570 → Volvo Penta cross-brand reservoir reference

OEM / Related Numbers:

• 883166A2

• 3861570

• REC883166A2

• M525 four-bolt reservoir family

Aftermarket / Verified Equivalents:

• Recmar: REC883166A2

• Aftermarket M525 four-bolt reservoirs

• Cross-brand replacement for Volvo Penta 3861570

🚤 Compatibility

Commonly used on:

• MerCruiser and Volvo Penta hydraulic trim pumps using the four-bolt reservoir

Typically suits:

• Engine / drive models:

• MerCruiser remote pump assemblies with 97 mm four-bolt tank

• Volvo Penta SX hydraulic trim pumps using 3861570

• OMC/Volvo shared pump designs where 883166A2 is specified

• HP Range: Drive application; not engine-horsepower specific

• Engine / Drive Type: Hydraulic trim-fluid reservoir

• Year Range: Approximately 1990s-2000s, pump dependent

• Serial / Identification Range: Confirm four-bolt flange, reservoir dimensions, filler location and pump-body seal.

🔌 Function

Stores trim fluid, allows expansion and supplies the hydraulic pump while providing a visible fluid-level reference.

Common signs of failure or replacement requirement:

• Fluid leakage at the flange or tank seam

• Cracked or brittle reservoir

• Contaminated or discoloured fluid

• Air entering the pump at low fluid level

• Filler-cap or flange seal will not remain dry

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging