Parts for your 2008 Suzuki Splash-Sump plug washers

2008 Suzuki Splash sump plug washers — what they do and when to replace them

Yes, the 2008 Suzuki Splash uses a sump plug washer (also called an oil drain plug gasket). This isn’t optional hardware. The Suzuki workshop manual for the K10B/K12B petrol engines fitted to Splash models and the Suzuki Electronic Parts Catalogue both show a separate crush-type gasket used under the M14 drain plug. The same requirement appears in technical publications for the closely related Opel/Vauxhall Agila B. That means a washer is relevant and should be replaced as part of routine servicing.

A sump plug washer’s whole job is to seal the drain plug to the alloy sump so engine oil stays exactly where it should. On the Splash it’s a soft, deformable ring—usually aluminium or copper—that “crushes” slightly as the plug is torqued up. That crush takes up tiny imperfections between the plug’s flange and the sump face, preventing weeps and drips as the oil heats and cools across daily driving.

Because it’s a crush washer, it’s designed for one-time use. Reusing it can look fine on the bench, but once it’s already flattened, it may not seal properly again. That’s why the Suzuki service literature calls for fitting a new washer at each oil change. It’s a cheap part that saves mess, driveway stains, and the risk of a low-oil warning later.

Good servicing practice on a 2008 Splash is simple:

• Have the correct 14 mm crush washer on hand before draining the oil.
• Clean the sump sealing face and the plug flange, fit a fresh washer.
• Refit the plug by hand to avoid cross-threading, then torque to spec. For K10B/K12B engines, many Suzuki documents specify around 35 N·m, always confirm in the vehicle’s service manual for your exact engine code.
• Run the engine, shut it off, and check for seepage after a few minutes. Recheck again after the first short drive.

Signs it’s time for a new washer—even between scheduled services—include a faint oil halo around the plug, drips after parking, or a plug that feels “notchy” tightening up because the old washer has hardened. If in doubt, throw a new washer on, they’re inexpensive and take seconds to replace.

A last tip for Aussie and Kiwi owners: keep a small pack of genuine-spec 14 mm crush washers in the glovebox or garage. It makes DIY oil changes quicker, tidier, and bang-on reliable.

What size sump plug washer does a 2008 Suzuki Splash use?

The Splash typically uses a 14 mm internal diameter crush washer for the oil drain plug. Thickness is commonly around 1.5 mm. Because there are small variations across markets and engine codes, it’s best to match the new washer to the old one or confirm by VIN in a Suzuki parts catalogue.

How often should the sump plug washer be replaced on a Splash?

Replace it at every oil change. It’s a deformable, single-use seal. Reusing it can lead to slow leaks, especially after a few heat cycles. Given the low cost, fitting a fresh washer each time is the smart move.

What torque should the oil drain plug be tightened to?

For K10B/K12B engines used in the Splash, workshop information commonly specifies about 35 N·m. Always verify against the specific service manual for your vehicle. Start the plug by hand, torque it accurately, then check for leaks after the engine has run.