Parts for your 2021 Suzuki Splash-Oil pump

2021 Suzuki Splash oil pump: is it fitted and what does it do?

Yes, an oil pump is fitted and absolutely relevant to the Suzuki Splash. Technical documentation for Splash powertrains confirms a mechanically driven engine oil pump across the range: the 1.0 K10B and 1.2 K12B petrol engines use a trochoid (internal gear) pump integrated at the front cover and driven by the crankshaft (Suzuki K10B/K12B Engine Workshop Manuals), while the 1.3 DDiS turbo‑diesel (Fiat Multijet) uses a gear‑type pump (FPT 1.3 Multijet Service Manual). The Suzuki Electronic Parts Catalogue for Splash/Ritz models also lists the complete oil pump assembly and related pickup/strainer and gaskets for these engines. Even though the Splash wasn’t widely sold as a 2021 model-year in many markets, vehicles registered or complied in 2021 still use these same engines and their factory oil pumps.

The oil pump’s whole job is to push pressurised oil through the engine so bearings, camshafts, timing components and the VVT system stay lubricated and cool. On a Splash, the pump picks up oil from the sump via a strainer, builds pressure, and routes it through galleries and filters. There’s a built‑in pressure relief valve so it doesn’t overdo it at higher revs. Without a healthy pump, you’ll see the low oil pressure light, top‑end clatter, VVT faults, or in the worst case, bearing damage.

As for servicing, the pump itself isn’t a routine replacement item, it’s inspected when there are symptoms or whenever the front cover/sump is off. Sensible maintenance focuses on clean oil and the right spec: quality 5W‑30 meeting the manual’s API/ILSAC for the K‑series petrol, and low‑SAPS 5W‑40/5W‑30 ACEA C3 for the DDiS. In Aussie and Kiwi conditions—short trips, heat, towing—more frequent oil and filter changes (e.g., 10,000 km) keep the pump and relief valve happy.

• Watch for: oil pressure warning lamp, rattly starts, VVT codes, metal in the sump, or sudden lifter/cam noise.
• When replacing: always fit a new pickup O‑ring/gasket, clean or renew the strainer, and reseal the timing/front cover and sump to workshop spec.
• Prime the pump and galleries with fresh oil before first start, then verify pressure with a mechanical gauge.
• If the timing chain cover is off (common on K12B/K10B), it’s a good time to assess the pump rotor end‑float and the relief valve for sticking or scoring (per the Suzuki Engine Workshop Manual checks).

Sources referenced: Suzuki K10B/K12B Engine Workshop Manuals, Suzuki Splash/Ritz Service Manual, Suzuki Electronic Parts Catalogue, Fiat/FPT 1.3 Multijet (DDiS) Service Manual. These documents outline the pump design, pressure specs, inspection steps and removal/installation procedures for Splash engines.

Popular questions about 2021 Suzuki Splash oil pump

What are the signs the Splash oil pump is failing?

Common flags are the red oil pressure lamp at idle or when hot, brief top‑end rattle on cold start that doesn’t improve, VVT‑related fault codes on K‑series petrol engines, and noticeable bearing or cam noise. A workshop will confirm with a mechanical oil pressure test before condemning the pump, as blocked strainers, tired oil, or worn bearings can mimic pump issues.

Should the oil pump be replaced as part of routine servicing?

No. It’s not a scheduled item. It’s inspected when symptoms appear or when the sump/front cover is off for other work. Sticking to correct oil specs and intervals in Australian and New Zealand conditions is the best preventive care. Replace the pump if rotors are scored, clearances are out of spec, or the relief valve sticks.

Do you need to prime the oil pump after replacement?

Yes. Pre‑fill the pump with clean engine oil, oil the pickup and seal, and crank with ignition disabled to build pressure. After first start, verify pressure on a gauge and check for leaks. This simple step protects bearings and camshafts on first fire‑up.