The West Australian Nationals candidate who unseated maverick MP Wilson Tuckey has warned the Coalition they can't rely on his support.



In a surprise result, Tony Crook unseated Liberal MP Mr Tuckey by gaining about 54 per cent of the two-party preferred count in the regional WA seat of O'Connor.



Mr Crook campaigned as an "independent voice" for regional WA and he vowed he would not sit in the Coalition party room.



He said during the campaign: "I will be a WA National, voting independently in the House of Representatives, assessing each policy and piece of legislation on its merits for regional WA."

The 50-year-old said he still stood by his position and made it clear the coalition cannot rely on his vote in trying to form government.



"Absolutely, not at all in fact," he said.



"If I do get elected I'm going to Canberra as a member of the WA Nationals. We have been exceptionally successful by being an independent political party and it's worked.



"It's made a real difference and I firmly believe the fed Nats should be the same."



The WA Nationals are a separate party from their federal counterparts, with a different structure.



With both major parties having to negotiate with a Greens member and three, possibly four, independents in order to form government, Mr Crook's position further complicates the situation.



The former farmer and pastoral consultant declared he would be just as prepared to talk with the Labor party as he would be with the Liberals.



"The simple fact is if there's a hung parliament then neither side should take the WA Nationals position for granted," he said.



One of the key sticking points for Mr Crook is the WA state government Royalties for Regions program.



He wants the federal government to match the program dollar for dollar.



"If they can announce a $2.6 billion railway line during the campaign from Parramatta to Epping, surely they can find a billion to support infrastructure in WA," Mr Crook said.



The situation mirrors the last state election in which the Liberal party were only able to form government after shoring up the support of the WA Nationals by committing to the program.



They had negotiated with the state Labor party.



Mr Crook is also in favour of the National Broadband Network as long as it can be provided to regional centres.



During the campaign, his opponent Mr Tuckey labelled the WA Nationals mad while Liberal member for Durack Barry Haase called them "feral" and "out of control".

Outspoken member for O'Connor, Wilson Tuckey.

Tuckey's dreams in ruins

Wilson Tuckey's desire to become the longest serving member of parliament has been quashed, with the man once dubbed the Liberal Party's "crazy uncle" suffering a surprising electoral defeat.