3580314 3581291 3581292 Volvo Penta Rocker Arm Assy | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta Complete Rocker Arm and Shaft Assembly - Part Numbers: 3580314 / 3581291 / 3581292

A genuine Volvo Penta valve-train assembly for MD2030 three-cylinder marine diesel engines.

The assembly is supplied with rocker shaft 3580314, the applicable intake and exhaust rocker arms 3581291 and 3581292, rocker supports, springs and valve-adjustment hardware as fitted.

The same engine platform is also identified as the Perkins Perama M30, providing additional genuine and aftermarket servicing options.

⚙️ Key Features

• Genuine Volvo Penta rocker assembly
• Rocker shaft part number 3580314
• Includes rocker arms 3581291 and 3581292
• Supplied assembled with supports and hardware where fitted
• Compatible with the Perkins Perama M30 engine platform

🚤 Compatibility

Commonly used on

• Volvo Penta MD2030 cylinder-head and valve-train assemblies
• Perkins Perama M30 marine diesel engines

Typically suits

• Engine models:
• Volvo Penta MD2030
• Volvo Penta MD2030A
• Volvo Penta MD2030B
• Volvo Penta MD2030C
• Volvo Penta MD2030D
• Perkins Perama M30
• Power Output: Approximately 29HP
• Engine Type: Three-cylinder naturally aspirated marine diesel
• Year Range: Approximately 1993-2005

🔌 Function

The rocker arms pivot on the shaft and transfer movement from the pushrods to the intake and exhaust valves. Adjustment screws establish the correct valve clearance.

⚠️ Common Signs of Failure

• Ticking or knocking from the cylinder head
• Valve clearance repeatedly moves out of specification
• Uneven valve lift or reduced cylinder compression
• Rocker arms have excessive movement on the shaft
• Oil starvation causes scoring or seizure of the shaft and bushes

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3581291 → Replaces rocker arm 861875 with the applicable valve cap
• 3581292 → Replaces rocker arm 861876 with the applicable valve cap
• 3580314 current rocker-shaft reference

OEM / Related Numbers

• 3580314 rocker shaft
• 3581291 rocker arm
• 3581292 rocker arm
• 3580315 rocker-shaft spring
• 3582684 rocker-shaft bracket / stand
• 861877 valve-adjusting screw
• 861878 adjusting-screw nut
• 861879 related rocker assembly component
• 21250646 valve cap
• 3580481 earlier valve-cap reference

Aftermarket / Verified Equivalents

• Perkins Perama M30 rocker shaft
• Perkins Perama M30 intake and exhaust rocker arms
• Specialist reconditioned complete rocker-shaft assembly
• Aftermarket valve-adjusting screws, nuts and shaft bushes

📦 Condition

• Genuine used assembly
• Supplied with the fitted components shown or stated
• Removed from running engine where applicable
• In good working condition unless otherwise stated