Genuine Ford 17-23 F-150 Expy Navi Ford GT Idler Pulley Kit HL3Z-8678-A - Ford (HL3Z-8678-A)
2017-2023 Ford - hl3z8678a
Genuine Ford 17-23 F-150 Expy Navi Ford GT Idler Pulley Kit HL3Z-8678-A - Ford (HL3Z-8678-A)
2017-2023 Ford - hl3z8678a
- MSRP: $61.27
- Discount: $20.16 (32.9% off)
- Sale Price: $41.11
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Details
- Brand:
- SKU:
HL3Z-8678-A
- Other Names:
Accessory Drive Belt Idler Pulley, Kit Tension Pulley, ys366
- Description:
This is a Genuine Ford tension pulley kit, sometimes referred to as the idler pulley kit, carrying Ford part number HL3Z-8678-A. The kit fits 17-23 F-150 trucks along with the related Expedition, Lincoln Navigator, and Ford GT applications using the 3.5L EcoBoost engine family. The pulley assembly maintains correct tension on the serpentine belt across the accessory drive and is a critical component for proper alternator and water pump performance. Worn idler or tension pulley bearings produce noise from the front of the engine and can lead to belt edge wear and premature belt failure if not addressed. Genuine Ford pulleys use OEM specification bearings, brackets, and tension calibration matched to the EcoBoost accessory drive. This kit ships in original Ford OEM packaging. Installation requires the use of the appropriate tensioner tool to relieve belt load, removal of the original pulley, installation of the new unit, and verification that the belt tracks correctly on all accessories after the engine is restarted. The kit is a direct replacement for the factory installed pulley and restores quiet, properly tensioned belt operation on the EcoBoost accessory drive.
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