Parts for your 2017 Holden Barina-Sump plug washers

2017 Holden Barina sump plug washers

Yes, the 2017 Holden Barina (TM, based on the GM T300/Sonic platform) uses a sump plug sealing washer. GM Service Information for the T300/Sonic/Barina oil change procedure specifies refitting the drain plug with a new seal where required, and ACDelco/GM Genuine Parts catalogues list a drain plug for this engine family supplied with an integral sealing gasket. Local application catalogues from Australian suppliers such as Tridon also list a matching sump plug washer for Barina TM models. Put simply, a sealing washer (either a separate crush washer or a bonded seal on the plug) is part of the design, so it’s relevant to servicing this car.

On a 2017 Barina, the sump plug washer’s whole job is to create a reliable seal between the drain plug and the alloy sump so engine oil doesn’t weep out after a service. Depending on what’s fitted, it’ll be either a soft-metal crush washer (usually copper or aluminium) that deforms once when tightened, or a plug with a bonded rubber/nylon gasket that compresses to seal. Both styles do the same thing: they spread the load, compensate for tiny surface imperfections, and protect the sump threads from the extra torque needed to “force” a seal without a washer.

For routine servicing, it’s smart practice in Australia and New Zealand to replace a soft-metal crush washer at every oil change. They’re designed as single-use items, once flattened, they don’t spring back and can seep. If the Barina’s plug uses an integrated gasket, inspect it closely each service. If the seal looks nicked, hardened, swollen or permanently compressed, replace the plug or the seal (where it’s a serviceable insert) rather than re-using it.

A few tips that Barina owners and workshops find handy:

• Confirm the washer style before you start, many Barinas use an M14 sealing arrangement, but always match what came off the car or check by VIN with a parts counter.
• Clean the sump sealing face, grit under the washer is a fast track to a drip.
• Tighten the plug to the factory torque spec for the TM Barina engine—don’t “swing off it” with a breaker bar. Over-tightening can split a bonded seal or distort a crush washer and damage the sump threads.
• After the oil change, wipe the area, run the engine, then re-check for any weeping.

Given how inexpensive washers are, replacing the seal at service time is cheap insurance for Aussie and Kiwi owners who want a clean garage floor and a healthy Barina.

Popular questions about 2017 Holden Barina sump plug washers

Does the 2017 Holden Barina actually have a sump plug washer, or is it an O-ring?
Most 2017 Barinas use either a separate crush washer or a drain plug with a bonded sealing gasket. GM’s service procedures for the T300/Sonic/Barina platform reference the sealing element during oil change, and local parts catalogues list both options for the TM. If your plug has a visible rubber-like ring under the head, that’s the bonded style, if not, you’ll be using a separate copper/aluminium washer.

What size sump plug washer does a 2017 Barina take?
Applications commonly use an M14 sealing arrangement on the TM Barina, but there can be variations. The safest move in Australia or New Zealand is to match the washer to the plug you remove, or confirm by VIN with a reputable parts counter. Using the wrong size or profile can lead to weeping or the need to over-tighten.

How often should the washer be replaced on a 2017 Barina?
Replace a soft-metal crush washer at every oil change. If your Barina has a plug with a bonded seal, inspect it each service and replace the plug or seal if it’s marked, hardened or flattened. Given the low cost, many techs still renew the sealing element every service to avoid nuisance leaks.