The downstream (rear) oxygen sensor for a 2017–2026 Honda CR-V differs depending on your specific engine choice, though Denso is the trusted original equipment manufacturer (OEM) supplier for these vehicles.Part Specifications by Engine1.5L Turbo Engine (2017–2022 / 2023–2026)OEM Part Numbers: 36532-5AA-A51, 36532-5AA-A01Denso Part Number: Denso 234-8027Configuration: 4-wire heated, specific narrow-band sensor with a 16.38-inch wiring harness.2.4L Naturally Aspirated Engine (2017–2019 LX Models only)OEM Part Number: 36532-5PH-A51Walker Part Number: Walker Configuration: 4-wire heated sensor dedicated explicitly to the base 2.4L non-turbo variant.Recommended Replacement OptionsDenso 234-8027 Downstream O2 Sensor: This is the absolute best plug-and-play direct replacement option for 1.5L Turbo models.