Parts for your 2021 Suzuki Splash-Oil cap

2021 Suzuki Splash oil cap — purpose, checks and replacement

Technical sources confirm the Suzuki Splash uses a conventional engine oil filler cap. The Suzuki Splash Owner’s Manual (engine oil and servicing sections) and the K10B/K12B Suzuki engine workshop manuals show the oil filler cap on the cam/rocker cover, used for topping up engine oil and sealing the crankcase. While new Splash production ended in the mid-2010s in many markets, any Splash on the road in 2021 still runs an internal‑combustion K‑series petrol engine, and therefore requires an oil cap. The Suzuki Electronic Parts Catalogue also lists an oil filler cap and seal for Splash variants using K10B and K12B engines.

For the 2021‑on‑road Suzuki Splash, the oil cap is a small but crucial part. It seals the oil filler neck to keep dust and moisture out, helps maintain correct crankcase ventilation, and prevents oil mist from escaping under the bonnet. A tight, intact cap means cleaner servicing and steadier idle quality, especially on engines sensitive to minor vacuum leaks. Pop the bonnet and it’s the cap marked with an oil can icon on top of the engine—twist to remove, then refit snugly by hand.

Replacement and maintenance are simple and worth rolling into regular servicing. Rubber seals harden with Aussie and Kiwi heat, and a cap can become brittle over time. If there’s any oil film around the filler area, a whiff of hot oil in the cabin, or a cap that won’t seat neatly, it’s time to inspect. Most owners will only need to replace the rubber seal, but full cap assemblies are inexpensive and widely available to suit K10B/K12B-powered Splash models. Always match by engine code or VIN to be sure the bayonet fitting and seal profile are right.

• Check the oil cap each service or every 10,000–15,000 km.
• With the engine cool, wipe the filler neck, inspect the cap for cracks, and check the seal for flattening or splits.
• If the cap feels loose or the seal is perished, replace the seal or cap—no special tools needed.
• Refit by hand only, over‑tightening can distort the seal and make future removal a pain.

Running without a good cap risks oil spray under the bonnet, faster oil consumption, and the odd drivability niggle. Keeping a healthy cap fitted is cheap insurance for a tidy, reliable Splash.

Where is the oil cap on a Suzuki Splash?

It sits on top of the engine’s cam/rocker cover under the bonnet, marked with an oil can symbol. Twist anti‑clockwise to remove, clockwise to refit until it seats firmly by hand.

Is it safe to drive without the oil cap?

Best not. Oil can splash out, dust can get in, and some engines may idle poorly from the extra air leak. If the cap is missing or damaged, fit a correct replacement before driving far.

Which oil cap fits my Splash?

Most Splash models run K10B (1.0L) or K12B (1.2L) petrol engines that use a bayonet‑style cap with a rubber seal. Match by engine code or VIN to ensure the right fit, many genuine and quality aftermarket options are available.