Give your 252-series Yamaha (252S, 252XE, 252SE, or 252SD) the easy tune-up it deserves with cooling by dropping in this all-genuine Boat Service Kit. Everything inside is factory-matched to the twin 1.9 L engines found in 2021-current models, so you spend less time hunting parts and more time carving glass-smooth water.. Inside the box. Two gallons LUB-10W40-WV-04 mineral oil: formulated to hold viscosity under high-rev heat and keep internals slick.. (2) 69J-13440-04-00 oil filters: deep-pleat elements trap the micro-metal that sneaks past budget filters.. (2) 6S5-E4451-01-00 air filters: fresh pleated media lets the ECU breathe easy for snappy throttle response.. (8) PV746263 (NGK LRF6A) spark plugs: pre-gapped for reliable ignition and smooth holeshots.. (2) 6AP-R1321-10-00 stainless impellers: restore water-pump pressure, boosting circulation with cooling efficiency on scorching summer runs.. Disposable Yamaha funnel: keeps oil changes clean-no slicks in the bilge.. Practical, no-