21480042 Gasket | Genuine Volvo Penta Part

🔧 Product Description

A high-temperature exhaust gasket installed between exhaust brake 21479714 and flange 21480040. Two gaskets are normally required.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD750VE
• Volvo Penta TAD760VE

• Engine Family: TAD

⚙️ Key Features

• Genuine Volvo Penta exhaust-brake gasket
• Two required per applicable assembly
• Heat- and pressure-resistant material
• Correct port and bolt-hole profile
• Replace whenever the exhaust-brake joint is dismantled
• Engine type: Six-cylinder turbocharged industrial diesel
• 2 used per assembly

🔌 Function

Seals the exhaust-brake flange joint against hot exhaust-gas leakage.

⚠️ Common Signs of Failure

• Soot around the flange
• Exhaust ticking or hissing
• Burnt or split gasket
• Loss of engine-brake effectiveness
• Repeated leakage caused by a warped flange

🛠️ Service Notes

• Fit a new gasket every time the joint is disturbed — a gasket takes a permanent set once it has been torqued and will not seal reliably a second time
• Scrape both faces back to clean bare metal, keeping the blade at a shallow angle so it lifts the old material without gouging the surface, and use a plastic scraper on aluminium castings
• Check the faces for flatness, cracks and corrosion pitting, and make sure no old gasket, carbon or hardened sealant is left in the corners or around the bolt holes
• Fit the gasket dry unless the workshop manual for your engine calls for a sealant, and then only the type it specifies — surplus sealant squeezes out into oil, coolant and fuel passages
• Draw the fasteners down progressively in the sequence and to the torque given in the manual for your engine, and recheck after the first heat cycle where the manual asks for it

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21479714 - exhaust brake
• 21480040 - flange
• 21480060 and 21480062 - nut retainers
• 20792408 - related gasket
• 21034013 - related flange

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging