21136464 Camshaft | Genuine Volvo Penta Part

🔧 Product Description

A specification-controlled camshaft used in D13B-C/D13B-L and D13C2/D13C4/D13C5 marine propulsion calibrations. Its lobe profiles determine valve lift, opening duration and unit-injector actuation and are matched to the engine power/emissions dataset.

🚤 Compatibility

Typically suits:

• Volvo Penta D13C2-A MP
• Volvo Penta D13C4-A MP
• Volvo Penta D13B-A MP
• Volvo Penta D13B-H MP
• Volvo Penta D13B-G MP
• Volvo Penta D13B-L MP
• Volvo Penta D13B-K MP
• Volvo Penta D13B-C MP
• Volvo Penta D13C5-A MP

• Engine Family: D

⚙️ Key Features

• Engine-setting-specific lobe profile
• Used on documented D13B-C/D13B-L and D13C2/4/5 applications
• Camshaft identification number is located at the front end
• Works with model-specific camshaft gear and oscillation damper
• Must not be substituted with 40005489 or 22783144 without checking the engine specification
• Engine type: 13-litre electronically controlled marine diesel

🔌 Function

Times and actuates the inlet valves, exhaust valves and unit-injector mechanism in synchronisation with crankshaft rotation.

⚠️ Common Signs of Failure

• Abnormal gear, valve-train or driveline noise
• Excessive runout or misalignment
• Fretting, scoring or cracked surfaces
• Timing, starting or power-delivery problems
• Metal contamination or accelerated mating-part wear

🛠️ 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

• 20999623 - cylinder camshaft bearing kits
• 22879256 - cylinder camshaft bearing kits
• 85131446 - rear camshaft bearing kit
• 22879257 - rear camshaft bearing kit

📦 Condition

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