#1
★ Top Pick
Cyclemax Full-Synthetic KPO Oil Change Kit compatible with 2023-2025 Kawasaki NINJA ZX-4R
The ZX-4R's inline-four revs hard and runs hot, so full-synthetic protection matters more here than on most 400s. This kit is built specifically for the 2023–2025 model, which takes the guesswork out of compatibility and ensures you're getting the correct viscosity grade and filter fitment from the start. The bundled format saves a separate parts search. Caveat: verify the included oil volume matches your drain-and-fill amount before ordering, as some kits run slightly short.
View on Amazon ↗
