21771519 Camshaft | Genuine Volvo Penta Part

🔧 Product Description

Precision-ground engine camshaft for the D8A1-A marine diesel valve train. Cam profile, journal size and timing relationship are engine-build controlled, so the complete product number and serial number must be matched before installation.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD840GE
• Volvo Penta TAD841-43GE
• Volvo Penta D8A2-A MP
• Volvo Penta TAD853VE
• Volvo Penta TAD851-53GE
• Volvo Penta TAD880-82GE
• Volvo Penta D8A5-A MH
• Volvo Penta D8A6-A MH
• Volvo Penta D8A5-A MG
• Volvo Penta D8A6-A MG
• Volvo Penta TAD880-84VE
• Volvo Penta D8A4-A MP
• Volvo Penta D8A1-A MP
• Volvo Penta TAD840-43VE
• Volvo Penta TAD850-52VE
• Volvo Penta D8A3-A MP
• Volvo Penta TAD840GE-B
• Volvo Penta TADH880-82GE
• Volvo Penta TADH880-84VE

• Engine Family: TAD, D, TADH

⚙️ Key Features

• Precision-ground lobe profiles
• Engine-specific valve timing
• Hardened journals and running surfaces
• Designed for the matching gear and bearings
• Product- and

🔌 Function

Controls valve and, where applicable, injector-actuation timing through the engine rocker mechanism.

⚠️ Common Signs of Failure

• Pitted, scored or worn lobes
• Excessive camshaft-journal clearance
• Low power, smoke or uneven cylinder performance

🛠️ Service Notes

• Oil the journals and lobes before fitting and lower the shaft in squarely, without dragging it across the bearings or bearing bores
• Inspect the parts that run with it as a set — followers or rockers, bearings and the drive gear — and renew anything worn; a new camshaft on worn followers will not last
• Line up the gear timing marks and check valve timing before turning the engine over, and never force it against resistance
• Tighten bearing caps and drive gear fixings in the sequence and to the figures in the workshop manual for your engine
• Prime the oil system and turn the engine through by hand for a full cycle before starting, then keep the first period of running gentle

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 994304 - camshaft locating pin
• 21534347 - related camshaft bearing shell

Aftermarket / Verified Equivalents

• BF Germany 20100408001 - camshaft cross-reference supplied without bearings
• Monedero 50013000043 - D8 camshaft cross-reference

📦 Condition

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