Parts for your 2021 Suzuki Splash-Transmission filter

2021 Suzuki Splash transmission-filter: is there one, and does it need replacing?

Short answer: a “transmission filter” isn’t a relevant, routinely replaced part for a 2021-labelled Suzuki Splash. That’s because the Splash range used either a 5‑speed manual (which doesn’t use a filter at all) or a 4‑speed automatic with an internal metal‑mesh strainer, not an external, serviceable filter cartridge.

Technical sources back this up. Suzuki’s factory service information for Splash/Ritz models (the globally sold RB series produced up to the mid‑2010s) shows two transmissions: a 5MT manual and a 4AT automatic. The manual gearbox is splash‑lubricated and relies on clean oil and a magnetic drain plug—there’s no provision for a filter. The 4AT, supplied by Aisin, uses an in‑pan metal screen (strainer) and case magnets to catch debris. Suzuki’s Electronic Parts Catalogue lists this component as an “oil strainer,” not a filter, and the workshop manual treats it as an inspection/overhaul item rather than a scheduled service part. Owner’s maintenance schedules typically call for ATF checks and, under severe service, fluid replacement—no periodic filter change is specified.

What this means for a Splash registered in 2021 (often an earlier build year) is simple:

• If it’s a manual: there is no transmission filter. Maintenance is limited to using the correct gear oil and changing it at the recommended interval or if contaminated.
• If it’s the 4‑speed auto: there’s no external, replaceable filter. The internal strainer sits inside the transmission pan and is normally only cleaned or replaced when the pan is removed for diagnosis or overhaul, or if there are contamination concerns.

For owners keen on preventative care in Australia or New Zealand, the sensible approach is to focus on fluid condition and driving symptoms:

• Manual: replace gear oil per the book or if shifts feel notchy, check for leaks and keep the magnet clean at service time.
• Automatic: follow the owner’s manual for ATF spec (commonly a JWS 3309/T‑IV type in these Aisin 4ATs). Many workshops recommend a conservative drain‑and‑fill every 60–80,000 km in severe use. Pan removal and strainer replacement are generally reserved for evidence of debris, burnt fluid, or shift issues.

References consulted include Suzuki’s Splash/Ritz factory service manual (Manual Transmission and Automatic Transmission sections), Suzuki Owner’s/Maintenance schedules for RB‑series Splash/Ritz, Aisin 4‑speed automatic transmission technical notes describing internal metal‑mesh strainers and pan magnets, and Suzuki EPC entries that label the part as an “oil strainer” rather than a service filter.

Popular questions

Does a 2021 Suzuki Splash have a transmission filter?
Not as a serviceable part. Manuals have no filter at all. The 4‑speed auto uses an internal strainer and magnets inside the pan, which aren’t replaced on a routine schedule. They’re inspected or replaced only if the pan is off for repair or there’s contamination.

When should the automatic transmission fluid be changed on a Splash?
Follow the owner’s manual first. Many AU/NZ workshops suggest a precautionary drain‑and‑fill about every 60–80,000 km in tougher conditions (urban stop‑start, towing, heat). If the fluid is dark, smells burnt, or shifts feel harsh, service it sooner.

Can the internal strainer on the Splash auto be replaced?
Yes, but it requires removing the transmission pan. It’s typically done when diagnosing shift issues, after fluid contamination, or during overhaul. It’s not a standard maintenance item like an engine oil filter.