OEM Volvo Penta 5.0L GXi-E Vortec Cylinder Head Assembly GM 12558059

OEM GM Vortec cast-iron cylinder head removed from a Volvo Penta 5.0L GXi-E marine engine. The head is marked with casting number 12558059, commonly associated with GM 305 / 5.0L V8 Vortec marine applications.

This is a complete used cylinder head assembly with eight valves, valve springs, retainers, and rocker studs installed as pictured. The 12558059 casting uses the 8-bolt Vortec-style intake mounting pattern and is commonly found on GM-based marine 5.0L engines.

The cylinder head is being sold as a used take-off and has not been pressure-tested, magnafluxed, or professionally inspected for cracks. Buyer should verify casting number, engine serial number, and required machining before installation.

Highlights

• OEM GM / Volvo Penta Marine Cylinder Head
• Removed from Volvo Penta 5.0L GXi-E
• Casting Number: 12558059
• GM 305 CID / 5.0L V8 Application
• Vortec-Style Cylinder Head
• 8-Bolt Vortec Intake Pattern
• Cast-Iron Construction
• Eight Valves Installed
• Valve Springs & Retainers Included
• Rocker Studs Included
• Complete Assembly as Pictured
• Used OEM Take-Off
• Sold Exactly as Shown

Condition

Used condition with carbon buildup, surface oxidation, gasket residue, paint wear, staining, and normal wear consistent with previous marine-engine use.

The cylinder head has not been pressure-tested or magnafluxed. Professional inspection and any necessary cleaning or machining are recommended prior to installation.

Please review all photos carefully for exact condition and included components.

Specifications

Brand: GM / Volvo Penta

Part Type: Cylinder Head Assembly

Casting Number: 12558059

Donor Engine: Volvo Penta 5.0L GXi-E

Engine Family: GM Small-Block V8

Displacement: 5.0L / 305 CID

Configuration: Vortec

Intake Pattern: 8-Bolt Vortec Style

Material: Cast Iron

Valves: 8

Condition: Used OEM Take-Off

Buyer is responsible for verifying casting number, engine serial number, fitment, and required machining before purchase.

Dealer Sale – Sunset Marine TX LLC

SKU: 10812