Toyota AR engine

In this dossier

• VersionsEach version, and every model that had it
• Watch outKnown faults and what to check
• OwningMaintenance and what owners say

The story

History: facts, each with its source

The 2.7L 1AR-FE arrived in late 2008 in the Venza and the Highlander. The 2.5L 2AR-FE came to the US RAV4 in 2008 and replaced the 2AZ-FE in the Camry in 2009. The A25A later replaced the AR.¹

The 2AR-FXE is an Atkinson-cycle version for hybrids, including the RAV4 Hybrid, which trades power for efficiency and leans on the electric motor for peak demands.¹

• Block: Aluminium, open deck, with cast-in iron liners¹
• Valvetrain: Twin overhead cams driven by a chain, timing varied on both cams¹
• Balance shafts: Two¹

Sources

1. Wikipedia (AR engine)