Genuine Ford 21-25 F-150 2.7L EB Auxiliary Alternator Belt ML3Z-8620-F - Ford (ML3Z-8620-F)
2021-2025 Ford F-150 - ml3z8620f
Genuine Ford 21-25 F-150 2.7L EB Auxiliary Alternator Belt ML3Z-8620-F - Ford (ML3Z-8620-F)
2021-2025 Ford F-150 - ml3z8620f
- MSRP: $66.91
- Discount: $22.01 (32.9% off)
- Sale Price: $44.90
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Details
- Brand:
- SKU:
ML3Z-8620-F
- Other Names:
V Belt, jk6325
- Description:
This is the genuine Ford auxiliary alternator drive belt for 21-25 Ford F-150 with the 2.7L EcoBoost, equipped with the dual-alternator package commonly fitted on trucks with the heavy-duty electrical group, mobile worksite outlets, or factory upfit packages. The belt drives the secondary alternator and is engineered to the precise length and rib profile for the auxiliary accessory loop. A failing belt produces low-voltage codes, intermittent loss of auxiliary outlets, AGM battery undercharge, or visible glazing and cracking along the rib face. The dual-alternator routing differs from the primary serpentine path and is not interchangeable with the main accessory belt. Inspect the tensioner and idler pulleys during replacement; any roughness, lateral play, or seal weep calls for immediate replacement since access is already open. Confirm correct routing against the underhood placard or the Ford service manual diagram before final tensioning. After installation, monitor charging voltage at idle and load test the auxiliary circuit to confirm both alternators are pulling their share of the electrical load. Replace only with Ford-specified parts on dual-alternator trucks, since incorrect non-OEM belts commonly cause tensioner fatigue and pulley bearing wear.
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