They are a combined 58 years old and took long paths toward their major league debuts this season. They've become close friends and, on Wednesday night, both flashed some power.
Arcia had a two-run double in the second inning off Yovani Gallardo and homered in the sixth and again in the eighth. Fernandez, the 30-year-old rookie from Cuba, went deep again after hitting his first major league homer on Tuesday.
"We're always together," said the 28-year-old Arcia, who spent 11 years in the minors. "We're like brothers. We're always talking about how we want to play here like we played in little leagues and minor leagues. Just living the dream. Play hard every day. Take the opportunity they give to us."
Felix Pena (3-4) worked six scoreless innings, striking out three and walking one, as the Angels won for the sixth time in seven games.
Joey Gallo hit his 36th homer of the season for the Rangers, who have lost five of six. He said he was OK after some discomfort during his final at-bat.
"Just a stinger. Last at-bat, the knob dug into my wrist, so it was kind of ringing on me that last at-bat, but it's good," Gallo said. "It will be fine."
A day earlier, the Angels gave Fernandez the customary silent treatment after his homer before Trout splashed him in the face with a cup of water. This time, Trout was waiting on the top step of the dugout to give Fernandez a high-five after his third-inning homer, which made it 6-0.
The 27-year-old Trout has enjoyed watching two rookies who are older than him.
"It's awesome," Trout said. "Obviously, it's not where we want to be from the team standpoint, but guys are getting opportunities to play and they're taking advantage of it. It's fun to be a part of. I see them come in and work hard every day. You can't take that away from them. They're getting an opportunity to play in the big leagues. They're having fun with it."
Arcia, who made his major league debut on the day Martin Maldonado was traded to the Astros, has five homers this season.
Justin Upton tripled to left field to score a run in the third, snapping a skid of 15 hitless at-bats, to put the Angels ahead 3-0.
Gallardo (8-5) allowed six runs on six hits in three innings.
TROUT'S CATCH OF THE DAY
Trout had an outfield assist in the third, a two-hop throw to catcher Arcia to cut down Robinson Chirinos at the plate.
Manager Mike Scioscia said there's no doubt his center fielder should win his first Gold Glove.
"It's every outfielder's dream," Trout said. "I try to go out there and catch everything and throw everybody out. It'd be pretty cool."
The Angels revealed the Scioscia bobblehead that will be given away on Sept. 29. Asked what he thought of it, Scioscia joked, "I'm going to try to say `ugly' in three languages."
Scioscia needed it translated in Japanese, but he knew and said "feo," the Spanish word for ugly.
The bobblehead depicts Scioscia holding a lineup card that features some of the best players he's managed in 19-year tenure -- including leadoff hitter Trout and Hall of Famer Vladimir Guerrero in the No. 2 spot.
Angels: RHP Shohei Ohtani (right elbow ligament) is not getting any treatment for his injury, just routine body maintenance. He is expected to decide before the season ends whether he will have the recommended Tommy John surgery and, if so, when. ... DH Albert Pujols (elbow, knee) had surgery on his right elbow Wednesday to remove bone spurs.
Rangers: LHP Yohander Mendez (1-1, 5.27 ERA) will start for the Rangers to open a series Friday in San Diego. Mendez will make his fourth major league start. After allowing a first-inning home run to Khris Davis in his last start, he retired 10 of the final 12 batters he faced.
Angels: RHP Odrisamer Despaigne (2-2, 6.40) will be the opener on a bullpen day. The Angels had a bullpen game on Tuesday and went 7 1/3 innings before allowing a hit.
More AP MLB: https://apnews.com/tag/MLB and https://twitter.com/AP-Sports
Dodgers SS Corey Seager looking to leave difficult season in the past
Dodgers shortstop Corey Seager said being sidelined last year while his teammates were making the World Series was difficult, but he spent the offseason undergoing an intense strength-and-agility regimen while recovering from a pair of surgeries.
Phillies still sizing up Bryce Harper, Manny Machado, other free agents
Phillies president Andy MacPhail, who continues to size up free agents such as Bryce Harper and Manny Machado, says "all of our ownership group wants to win."
Roberto Osuna to close for Houston Astros this season
Roberto Osuna will close for the Houston Astros in the right-hander's first full season with the team.
Danny Farquhar takes next step in comeback, throws bullpen session for Yankees
Danny Farquhar, who suffered a brain hemorrhage from a ruptured aneurysm last April, took a massive step toward pitching again the majors, throwing a bullpen session with the Yankees on Friday.
Scott Servais: 'Overzealous' offseason behind Mallex Smith's sore shoulder
Mariners center fielder Mallex Smith will be slowed at the start of spring training due to a sore shoulder that manager Scott Servais attributes to "overzealous" offseason throwing.
Mets OF Yoenis Cespedes thinks he will play in 2019
Mets OF Yoenis Cespedes says he thinks he will be able to return this season following surgery on both heels last summer, but he doesn't know when he will be ready to play.