Springbok assistant coaches Felix Jones and Jerry Flannery are set to join up with the Bulls on a temporary basis.
The former Munster and Ireland internationals have been part of the South Africa coaching team over the last few years.
Jones was part of the ticket for both the 2019 and 2023 World Cup wins, and returned to Rassie Erasmus' coaching team after a spell with England ended last year.
Flannery joined from Harlequins in 2024 as defence coach.
The Vodacom Bulls reached the final of the BKT United Rugby Championship in June, losing to Leinster in Dublin.
Their director of rugby Jake White departed during the summer.
"Springbok assistant coaches Felix Jones and Jerry Flannery, SA Rugby Mobi-Unit coach Duane Vermeulen, and Head of Athletic Performance Andy Edwards will provide short-term support to the Vodacom Bulls following a request from the franchise for assistance in specific technical areas," SA Rugby said.
"The request was approved by SA Rugby and the Springbok management as part of the organisation’s ongoing collaboration with its member unions.
"The Bok coaches will engage with the Bulls on a limited basis, both remotely and in person where required, in line with SA Rugby’s standard practice of sharing national coaching resources when requested."
The Bulls, under new coach Johan Ackermann, are tenth in the URC table.
Their next fixture with an Irish side is against Munster in round 14 on 28 March.
