Volvo Penta Exhaust Manifold Gasket 20557208 | D5 D7 Series

Volvo Penta Exhaust Manifold Gasket – 20557208

Part Information

• Part Number: 20557208
• Brand: Volvo Penta
• Official Product Type: Exhaust Manifold Gasket
• OEM Status: Genuine Volvo Penta
• Supersedes: 20405589, 20460296, 20505955
• System: Intake & Exhaust – Turbo / Exhaust Manifold Assembly
• Aftermarket Cross-Reference: Elring 447.551

What This Part Does

The 20557208 is the OEM exhaust manifold port gasket fitted between the cylinder head exhaust ports and the exhaust manifold on Volvo Penta D5 and D7 diesel engines. It seals each exhaust port against high-temperature combustion gas leakage. Because these gaskets are used individually at each port, the correct quantity depends on the engine configuration — D5 four-cylinder engines typically require 4 gaskets, while D7 six-cylinder engines typically require 6 gaskets.

Compatible Applications

D5 Series

• Volvo Penta D5A-A T
• Volvo Penta D5A-A TA
• Volvo Penta D5A-B TA
• Volvo Penta D5A-T
• Volvo Penta D5A-TA

D7 Series

• Volvo Penta D7A-A T
• Volvo Penta D7A-A TA
• Volvo Penta D7A-B TA
• Volvo Penta D7A-T
• Volvo Penta D7A-TA
• Volvo Penta D7C-TA
• Volvo Penta D7C-B TA

Fitment is assembly-specific and can vary by engine serial number and manifold configuration (Low Mounted Turbo assembly A or B). Always confirm the exact part number against your engine serial number and Volvo Penta parts diagram before ordering.

Serial Number Fitment Notice

Confirm the engine model, serial number, and exhaust manifold diagram position before ordering. Exhaust manifold gaskets can vary by engine version and manifold layout. The required quantity also varies — order enough for a complete set based on your engine’s cylinder count.

When to Replace

• Exhaust manifold is being removed for any service
• Soot staining or exhaust residue is visible around the manifold joint
• Audible exhaust leakage at the cylinder head / manifold interface
• Gasket shows compression loss, cracking, or burn-through
• Manifold, cylinder-head, or turbocharger service disturbs the sealing surfaces
• Fastener repair or manifold flange work requires re-seating the assembly

Installation Notes

Clean both the cylinder-head exhaust port faces and the manifold mating surfaces thoroughly before installation — remove old gasket material and carbon deposits without damaging the sealing faces. Inspect the manifold for warping and check all mounting studs and hardware. Install new gaskets at each port position and torque the manifold fasteners to the Volvo Penta service specification using the correct tightening sequence for the engine.

Technical FAQ

Q: Can I reuse the existing gasket if it looks undamaged?
A: Not recommended. Once an exhaust manifold gasket has been compressed and exposed to heat cycling, reusing it increases the risk of leakage after reassembly. Replace with a new gasket whenever the manifold is removed.

Q: How many gaskets do I need?
A: D5 four-cylinder engines typically use 4; D7 six-cylinder engines typically use 6. Confirm the exact quantity against the Volvo Penta parts diagram for your engine.

Q: Is 20405589 still available or has it been replaced?
A: 20557208 is the current active Volvo Penta number. Earlier numbers 20405589, 20460296, and 20505955 have been superseded by 20557208.

Parts Desk Insights

This is one of those parts where the quantity matters as much as the part number — ordering one gasket when you need a full set of four or six is a common mistake that leads to a return trip. If the manifold is already off, replace the complete set while you have access. The gasket is one of the least expensive items in an exhaust manifold service, and skipping fresh gaskets to save a few dollars often leads to repeat labor when the assembly starts leaking again after reassembly.