Joe Cokanasiga will make his first Gallagher Premiership start since October when Bath Rugby host Harlequins on Friday night (kick-off 19:45).
The England wing, whose inclusion sees Matt Gallagher switch to full-back, is one of four changes to the starting XV that began the last-gasp win over Leicester Tigers in Round 10.
Cameron Redpath returns to inside centre, with Ollie Lawrence moving back to the 13 jersey, while fellow Scotland international Josh Bayliss comes in at Number 8.
After featuring in the Premiership Rugby Cup last weekend, Dave Attwood retains his place in the second row after missing league games with Newcastle Falcons and Leicester Tigers due to suspension.
Captain Ben Spencer continues at scrum-half and Orlando Bailey is at fly-half. Try-scoring hero against Leicester Will Butt takes the final space in the backline.
In the pack, Valeriy Morozov, Tom Dunn and D’Arcy Rae form the front row and Fergus Lee-Warner is at lock alongside Attwood.
RPA 15 Under 23 MVP of November nominee Ted Hill and Miles Reid join Bayliss in the back row at blindside and openside flanker respectively.
On the bench, Will Spencer is back in the matchday 23 and will make his 50th Bath appearance when he enters the field.
Bath Rugby team to play Harlequins
Bath Rugby: 15 Matt Gallagher, 14 Joe Cokanasiga, 13 Ollie Lawrence, 12 Cameron Redpath, 11 Will Butt, 10 Orlando Bailey, 9 Ben Spencer ©; 1 Valeriy Morozov, 2 Tom Dunn, 3 D’Arcy Rae, 4 Dave Attwood, 5 Fergus Lee-Warner, 6 Ted Hill, 7 Miles Reid, 8 Josh Bayliss
Impact players: 16 Niall Annett, 17 Arthur Cordwell, 18 Johannes Jonker, 19 Will Spencer, 20 Tom Ellis, 21 Max Green, 22 Piers Francis, 23 Richard de Carpentier
Harlequins: 15 Nick David, 14 Cadan Murley, 13 Oscar Beard, 12 Andre Esterhuizen, 11 Josh Bassett, 10 Tommaso Allan, 9 Danny Care; 1 Joe Marler, 2 Jack Walker, 3 Wilco Louw, 4 Dino Lamb, 5 Irne Herbst, 6 Jack Kenningham, 7 Will Evans, 8 Alex Dombrandt ©
Impact players: 16 George Head, 17 Fin Baxter, 18 Simon Kerrod, 19 George Hammond, 20 Archie White, 21 Lewis Gjaltema, 22 Will Edwards, 23 Lennox Anyanwu