Preston Hire will assume the role of naming rights sponsor on Lee Holdsworth's Team 18 Holden at Sydney Motorsport Park.
The construction equipment hire firm has been a minor partner of the team throughout the season and will take over the door branding in a one-off deal.
Owner Charlie Schwerkolt has cycled a number of brands across the car this year as the entry operates without a full-time primary sponsor.
“We are very proud to highlight the Preston Hire brand this weekend,” said Schwerkolt.
“They have been a gold partner on the car throughout all events this year, and it is really exciting to have them step up to naming rights at Sydney Motorsport Park.
“Our partnership with Preston Hire is a really important one and we look forward to hosting many of their guests at the track over the weekend.”
Holdsworth sits 19th in the championship standings after a promising weekend in Townsville last month failed to translate to the most recent round at Queensland Raceway.
The #18 Holden finished 15th, 21st and 18th across the three Ipswich races as the Walkinshaw stable continues to struggle for qualifying form.