Toyota 274150W021 — Alternator Pulley with Clutch
Overview
Alternator freewheel pulley Toyota 274150W021 isolates belt drive vibrations caused by rotational irregularities of the crankshaft. This component features 7 grooves for a V-ribbed belt, M17x1.5 internal thread, 58 mm outer diameter, and 41.5 mm overall width. Constructed from hardened steel, it incorporates an internal needle roller bearing, inner sleeve, and double-lip rubber seals to retain factory grease contamination-free. The overrunning clutch unit allows the alternator rotor to freewheel during sudden engine deceleration and idle speed variations. Cross-reference OEM numbers include 27415-0W020, 27415-0W021, and 274150W020.
Vehicle application covers Toyota models fitted with 2.0 D-4D and 2.2 D-4D diesel engines (engine codes 1AD-FTV, 2AD-FTV, 2AD-FHV). Suitable fitment includes Toyota Avensis T25 and T27 (2005–2018), Toyota RAV4 III and IV (2005–2018), Toyota Auris E150 and E180 (2006–2018), and Toyota Corolla E150 (2006–2013). Common failure symptoms include metallic rattling noises on startup, belt squeal under electrical load, belt tensioner flutter, or bearing hum. Replacement is required when the internal one-way clutch seizes solid in both rotational directions, slips continuously, or develops excessive axial play. Replacing a worn pulley protects the drive belt and tensioning elements from premature wear.
Toyota 274150W021 — alternator pulley with clutch. 5 offers available, starting from 77.67 USD.
Specifications
Manufacturer — Toyota. Article number — 274150W021. Name — Alternator Pulley with Clutch. Offers — 5. From — 77.67 USD.
Compatible cross-references
Replacements and analogues: Toyota 270600T240, Toyota 270600T260, Toyota 270600T360, Toyota 2706037101, Autokat 274150W021, CASCO CAL40312AS, Cevam 4276, ELSTOCK 285965, ELSTOCK 287552.
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