Idler Pulley for Volvo Penta D4, D6 diesel engines

Idler tensioner pully for Volvo Penta D4, D6 diesel engines.

The Volvo Penta 3847482 idler pulley is a component designed to maintain compressor/alternator belt routing and tension on Volvo Penta D4 and D6 marine diesel engines. By keeping the drive belt properly aligned, it ensures reliable operation of engine-driven accessories such as the alternator and compressor while reducing belt vibration and wear.  

Weight: 0.295kg
Diameter: 74mm
Height: 28mm
Hole-diameter: 9mm

For the following Volvo Penta diesel engines:

D4-150A-G
D4-175i-G
D4-180i-B, D4-180i-C, D4-180i-D,
D4-180i-E, D4-180i-F
D4-210A-A, D4-210A-B
D4-210i-A, D4-210i-B
D4-225A-C, D4-225A-D, D4-225A-E, D4-225A-F
D4-225i-B, D4-225i-C, D4-225i-D,
D4-225i-E, D4-225i-F
D4-230A-G
D4-230i-G
D4-260A-A, D4-260A-B, D4-260A-C,
D4-260A-D, D4-260A-E, D4-260A-F
D4-260D-B, D4-260D-C, D4-260D-D,
D4-260D-E, D4-260D-F
D4-260i-A, D4-260i-B, D4-260i-C,
D4-260i-D, D4-260i-E, D4-260i-F
D4-270A-G
D4-270i-G
D4-300A-A, D4-300A-C, D4-300A-D,
D4-300A-E, D4-300A-F, D4-300A-G
D4-300D-A, D4-300D-C, D4-300D-D,
D4-300D-E, D4-300D-F
D4-300i-A, D4-300i-C, D4-300i-D,
D4-300i-E, D4-300i-F, D4-300i-G
D4-320A-G
D4-320i-G

D6-280A-A, D6-280A-B, D6-280A-C,
D6-280A-D, D6-280A-E
D6-280i-A, D6-280i-B, D6-280i-C,
D6-280i-D, D6-280i-E
D6-300A-F, D6-300A-G
D6-300D-G
D6-300i-F, D6-300i-G
D6-310A-A, D6-310A-B, D6-310A-C,
D6-310A-D, D6-310A-E
D6-310D-B, D6-310D-C, D6-310D-D, D6-310D-E
D6-310i-A, D6-310i-B, D6-310i-C,
D6-310i-D, D6-310i-E
D6-330A-B, D6-330A-C, D6-330A-D,
D6-330A-E, D6-330A-F
D6-330D-B, D6-330D-C, D6-330D-D,
D6-330D-E, D6-330D-F
D6-330i-B, D6-330i-C, D6-330i-D,
D6-330i-E, D6-330i-F
D6-340A-G
D6-340D-G
D6-340i-G
D6-350A-A, D6-350A-B
D6-370A-B, D6-370A-C, D6-370A-D,
D6-370A-E, D6-370A-F
D6-370D-A, D6-370D-B, D6-370D-C,
D6-370D-D, D6-370D-E, D6-370D-F
D6-370i-A, D6-370i-B, D6-370i-C,
D6-370i-D, D6-370i-E, D6-370i-F
D6-380A-G
D6-380D-G
D6-380i-G
D6-400A-E, D6-400A-F, D6-400A-G
D6-435D-A, D6-435D-C, D6-435D-D,
D6-435D-E, D6-435D-F
D6-435i-A, D6-435i-C, D6-435i-D,
D6-435i-E, D6-435i-F
D6-440A-G
D6-440D-G
D6-440i-G, D6-440i-WJ-G
D6-480D-G
D6-480i-G, D6-480i-WJ-G


A worn or damaged idler pulley can cause belt noise, misalignment, accelerated belt wear, or even belt failure, potentially leading to charging or cooling issues.