3860079 Belt Tensioner | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta belt tensioner from the Engine group, weighing 0.726 kg and listed for 88 applications on the DPX series. Belt tensioner 3860091 weighs 0.785 kg on 16 applications, so the two are close in weight but very different in fitment - order against the application.

🚤 Compatibility

• Engine Family: DPX

Full model list at the end of this description.

⚙️ Key Features

• 0.726 kg
• 88 applications on the DPX series
• Sibling tensioner 3860091 weighs 0.785 kg on 16 applications
• Engine group

🔌 Function

Maintains correct tension on the drive belt as the belt beds in and warms up, keeping it from slipping without overloading the driven bearings.

⚠️ Common Signs of Failure

• Squeal or chirp from the belt, especially on start-up or under load
• Rumble or growl from the tensioner bearing
• Belt flapping, or tension that will not hold
• Pulley face worn, grooved or its rim chipped
• Tensioner arm stiff, sloppy or its spring gone slack

🛠️ Service Notes

• Renew the drive belt with the tensioner and check the other pulleys for wear - belts 3860086 and 3860087 cover engines in this range
• Spin the tensioner pulley by hand and feel for roughness before reusing it
• Set tension as specified after fitting and recheck once the engine has been run

🔄 Supersession & Cross Reference

Aftermarket / Verified Equivalents

• Recmar: REC3860079

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 7.4GiPEFS, 7.4GSiPEFS, 5.7GSiI-A, 5.7GSiPEFS, 5.7GXi-A, 5.7GXi-B, 5.7GXi-C, 5.7GXi-CF, 5.7GXi-D, 5.7GXi-DF, 5.7GXi-E, 5.7GXi-EF, 5.7GXi-F, 5.7GXi-FF, 5.7OSXi-D, 5.7OSXi-DF, 5.7GXiI-A, 5.7GXiI-B, 5.7GXiI-C, 5.7GXiI-D, 5.7GXiI-E, 5.7GXiI-F, 5.7OSi-A, 5.7OSi-AF, 5.7OSi-B, 5.7OSi-BF, 5.7OSi-C, 5.7OSi-CF, 5.7OSXi-A, 5.7OSXi-AF, 5.7OSXi-B, 5.7OSXi-BF, 5.7OSXi-C, 5.7OSXi-CF, 5.0OSi-DF, 5.0OSi-E, 5.0OSi-EF, 5.7Gi-A, 5.7Gi-B, 5.7Gi-BF, 5.7Gi-C, 5.7Gi-CF, 5.7Gi-D, 5.7Gi-DF, 5.7Gi-E, 5.7Gi-EF, 5.7OSi-D, 5.7OSi-DF, 5.7GiI-A, 5.7GiI-B, 5.7GiI-C, 5.7GiI-D, 5.7GiI-E, 5.0GiPEFS, 5.0GXi-D, 5.0GXi-DF, 5.0GXi-E, 5.0GXi-EF, 5.0OSi-C, 5.0OSi-CF, 5.0OSi-D, 5.0GXi-A, 5.0GXi-B, 5.0GXi-BF, 5.0GXi-C, 5.0GXi-CF, 5.0OSi-B, 4.3GIPEFS, 4.3GXi-A, 4.3GXi-B, 4.3GXi-BF, 4.3GXi-C, 4.3GXi-CF, 4.3GXi-D, 4.3GXi-DF, 4.3GXi-E, 4.3GXi-EF, 4.3OSi-BF, 4.3OSi-B, 4.3OSi-C, 4.3OSi-CF, 4.3OSi-D, 4.3OSi-DF, 4.3OSi-E, 4.3OSi-EF, 8.2GSiPEFS
• Volvo Penta DPX385XEFS
• Volvo Penta DPX415XEFS