21430916 Exhaust Valve | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D9 Exhaust Valve - Part Number: 21430916

Bimetal exhaust valve used in specified Volvo Penta D9A and D9B industrial engines. The valve has an approximately 36 mm head, 8 mm stem, 192.7 mm overall length and 30-degree seat angle, with a chromed stem, armoured seating face and hardened stem tip for high exhaust-temperature service.

⚙️ Key Features

• Genuine Volvo Penta D9 exhaust valve

• Replaces earlier Volvo reference 20564039

• Approximately 36 mm head diameter, 8 mm stem and 192.7 mm overall length

• Bimetal construction with wear-resistant stem and seating surfaces

• Suitable for cylinder-head overhaul when matched to the correct valve guide, seat and spring components

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21430916 → Supersedes 20564039

OEM / Related Numbers:

• 7421430916 - Volvo Group formatted reference

• 7420564039 - Volvo Group reference for earlier 20564039

• 20570965 - Related Volvo exhaust-valve reference

Aftermarket / Verified Equivalents:

• MAHLE: 037 VA 31975 000

• AE / Federal-Mogul: V95090

• DT Spare Parts: 2.10980

• FEBI Bilstein: 179173

• TRW Engine Components: 48312

• Swedish Lorry Parts: EXV-039

• Monedero: 50012200009

• Freccia: R6754/BMCR

🚤 Compatibility

Commonly used on:

• Volvo Penta D9A and D9B industrial diesel cylinder heads

Typically suits:

• Engine / drive models:

• TAD940VE

• TAD941VE

• TAD942VE

• TAD943VE

• TAD950VE

• TAD951VE

• TAD952VE

• HP Range: Engine-rating dependent across the listed D9 industrial models

• Engine Type: Volvo Penta D9 inline six-cylinder turbocharged industrial diesel

• Year Range: D9A/D9B generation; confirm cylinder-head and engine serial number

🔌 Function

Opens to release combustion gases from the cylinder and seals against the exhaust valve seat during compression and combustion. Its heat-resistant construction transfers valve-head temperature into the seat and guide while withstanding repeated high-temperature loading.

Common signs of failure:

• Low cylinder compression or difficult starting

• Burnt, cracked or eroded valve head or seating face

• Misfire, rough running or reduced power on the affected cylinder

• Abnormal exhaust-gas temperature imbalance

• Valve-clearance instability, stem wear or sticking in the valve guide

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging