Application Compatible for Honda CRF450R 50th Anniversary Edition: 2023 compatible for Honda CRF450R: 2019-2023 compatible for Honda CRF450R-S: 2023 compatible for Honda CRF450RWE: 2019-2023 compatible for Honda CRF450RX: 2019-2023OE/ Part number 31200-MKE-A71, 519-CSM2414 O Specification Height: 72.66 mm 2.86 " Length: 134.5 mm 5.29 " Teeth: 9 Tooth 11.54 mm 0.45 " Package included 1x Starter Motor Feature 1. High quality stater motor compatible for Honda CRF450 CRF 450RX Enduro 450RWE 2019-2022, detailed info please check the product description. 2. Manufactored by premium components: high quality magnets or field coils deliver more torque & fast starts, sealed bearings & housings lock out moisture & grime. 3. This Starter Motor will meet or exceed OEM standards, it is a direct replacement though is is NOT a genuine original. 4. All Items Tested for Reliability, Durability & Performance