21785693 Camshaft | Genuine Volvo Penta Part

🔧 Product Description

Precision camshaft used in the TAD540-TAD542VE timing and valve train. The lobe profile, gear relationship and journal dimensions control valve timing and must match the exact engine build.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD552VE
• Volvo Penta TAD570-72VE
• Volvo Penta TAD570-71VE-B
• Volvo Penta TAD550-51VE
• Volvo Penta TAD540-42VE

• Engine Family: TAD

⚙️ 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-event timing and lift 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

• 21534347 - camshaft bearing shell
• 950542 - locating pin
• 21735434 - camshaft gear
• 975199 - flange screw

📦 Condition

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