Toyota 2737031220 — Alternator Brush Holder
Overview
Alternator brush holder Toyota 2737031220 transfers electrical current to the alternator rotor via spring-loaded carbon brushes. The assembly comprises a heat-resistant PBT plastic housing, dual steel coil springs, copper busbars, and synthetic carbon contacts. The holder maintains brush contact against the rotor slip rings at a set angle to eliminate electrical arcing and prevent uneven commutator wear. OEM part reference is Toyota 27370-31220, with Denso cross-reference 021620-3000. Physical dimensions are 45 mm in length, 38 mm in width, and 26 mm in height, featuring a 32 mm mounting hole center distance and 14.0 mm fresh brush protruding length. Operating rating is 12V DC system voltage.
This unit fits Denso alternators rated between 80A and 130A output. Compatible vehicle fitment includes Toyota Camry V40 2.4/3.5 (2006–2011), RAV4 XA30 2.0/2.4 (2005–2012), Corolla E150 1.4/1.6 (2006–2013), Avensis T250/T270 1.8/2.0 (2003–2015), Highlander XU40 3.5 (2007–2014), and Lexus RX350 AL10 3.5 (2009–2015). Replacement is required when carbon brush length wears below 4.5 mm, charging voltage drops under 13.5V under load, headlamps flicker, or the dashboard battery warning light illuminates. Installing a replacement brush holder restores stable excitation current and protects the slip ring surface from burning.
Toyota 2737031220 — alternator brush holder. 5 offers available, starting from 33.48 USD.
Specifications
Manufacturer — Toyota. Article number — 2737031220. Name — Alternator Brush Holder. Offers — 5. From — 33.48 USD.
Compatible cross-references
Replacements and analogues: Toyota 273700m040, Toyota 273700C020, Toyota 273700F060, Toyota 273700M040, Toyota 273700S010, Subaru 2737031220.
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