1275366 Pulley | Genuine Volvo Penta Part

🔧 Product Description

A genuine Volvo Penta toothed crankshaft pulley or timing-belt sprocket used on D3 marine diesel engines. The sprocket mounts on the front of the crankshaft and drives the timing belt at exactly half camshaft speed. It is separate from the vibration damper 30731865, although both components are installed together in the crankshaft pulley assembly.

🚤 Compatibility

• Engine Family: D
• HP Range: 110-220 HP
• Year Range: Approximately 2004-2008 for the primary D3-A/B/C marine applications

Full model list at the end of this description.

⚙️ Key Features

• OEM Volvo Penta part number 1275366
• System group: Engine
• Net weight: approximately 1.20 kg
• Fits D3 series marine diesel engines in inboard and sterndrive configurations
• Direct replacement pulley for belt-driven engine accessory applications
• Engine type: Volvo Penta 2.4L inline 5-cylinder common-rail marine diesel

🔌 Function

The pulley carries the drive belt and transmits rotational force from the engine to belt-driven auxiliary equipment. Correct pulley condition and alignment keep belt tension stable and ensure reliable accessory drive operation.

⚠️ Common Signs of Failure

• Belt squeal or chirping at start-up or under load
• Visible groove wear, scoring or corrosion on the pulley face
• Belt misalignment, edge fraying or premature belt wear
• Wobble or runout visible while the engine is running
• Rubber isolator cracking or separation on damped pulley designs

🛠️ Service Notes

• Inspect the belt running surfaces before fitting — a pulley with glazed, scored, pitted or rust-roughened grooves will chew through a new belt in very little running time
• Check that the pulley runs true and that its bearing or bush turns smoothly with no roughness or side play; fit a new belt whenever a pulley is changed
• Confirm that every pulley in the drive lies in the same plane and that the belt profile matches each groove — misalignment shows up as belt dust, squeal or a worn belt edge and will destroy a new belt quickly
• Fit onto a clean, dry, burr-free shaft or hub face and tighten the retaining fasteners in the sequence and to the figures given in the workshop manual for your engine
• Turn the engine over by hand before starting to confirm the belt is fully seated in every groove and that nothing fouls, then recheck belt tension after the first running period

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 30731865 related vibration damper
• 30637335 earlier vibration damper reference
• 9465781 related crankshaft
• 3531111 related crankshaft nut
• 969445 related retaining screws

Aftermarket / Verified Equivalents

• Skandix catalogue reference: 1011488
• IPD catalogue reference: 236414

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D3-110I-B, D3-110I-C, D3-130I-C, D3-130A-A, D3-160A-A, D3-130A-B, D3-160A-B, D3-130A-C, D3-160A-C, D3-140A-D, D3-170A-D, D3-200A-D, D3-220A-D, D3-140I-D, D3-140A-E, D3-170A-E, D3-200A-E, D3-220A-E, D3-140I-E, D3-190A-B, D3-190A-C, D3-190I-A, D3-110I-A, D3-130I-A, D3-160I-A, D3-110I-D, D3-150I-D, D3-170I-D, D3-200I-D, D3-220I-D, D3-110I-E, D3-150I-E, D3-170I-E, D3-200I-E, D3-220I-E, D3-160I-C, D3-190I-B, D3-190I-C, D3-130I-B, D3-160I-B