With 240 games down ... who knows how many more to go?

When he trudges onto the Coliseum field Sunday, Raiders kicker Sebastian Janikowski will set the team record for most games played. The kicker will pass Tim Brown (240), having long ago topped other Hall of Famers Gene Upshaw (217) and Art Shell (207) and Ray Guy (207).

And Janikowski, 37, shows no signs of slowing down. He has made all seven of his field-goal tries and all 10 extra points this season.

“He’s the Polish Cannon,” said Jon Condo, the team’s long snapper for the past nine years. “Still in his prime. He feels like he can kick into his mid-40s.”

Janikowski agrees.

“You look at my stats?” Janikowski asked. “That’s how I can tell. I’m doing the same thing I did 10 years ago, hitting 60-yarders in warm-ups before games. I don’t see the difference. The more you do, the more you work out, you can be strong.”

Janikowski is the Raiders’ all-time leading scorer with 1,605 points and needs five field goals of 50 yards or longer to break Jason Hanson’s NFL record of 52. Janikowski is taking some time to appreciate Sunday’s milestone.

“It means a lot,” Janikowski said. “I’m doing something right, right? It’s a great honor ... It’s a special feeling, but hopefully I will play in many more.”

Janikowski was a surprising first-round pick in 2000 from Florida State, but has navigated his way though some early-career off-field problems and 10 head coaches. He keeps coming back year after year, in noticeably better shape the past three seasons.

“In this league, you get injuries,” Janikowski said. “I never thought I would play this long. But I feel great, and I’m going to keep going as long as I can.”

He said he lifts more weights than he did when he was younger, and now manages the amount of weekly kicks, too.

“When you’re 24 or 25, you can kick three times a week,” Janikowski said. “I don’t do that anymore.”

Condo said Janikowski — a shaved-headed, 6-foot-1, 250-pounder — often gets mistaken for former Chicago linebacker Brian Urlacher when they are playing golf in the offseason in Lake Tahoe.

“I told him he just needs one of those barbed-wire tattoos,” Condo said.

Many of the previous coaches didn’t care if Janikowski came to the voluntary offseason programs, but first-year head coach Jack Del Rio made sure to broach the topic.

“I thought it was imperative that he was around, so we could work on the things we needed to work on to get our special-teams unit up to speed,” Del Rio said. “He complied and made that happen. Once he understood the why, he embraced it and was here.”

Del Rio has coached against Janikowski in Jacksonville and Denver, and Del Rio has seen that there is more to No. 11 than merely a big leg.

“I’ve learned that he’s a guy that cares a great deal about what he does as a pro,” Del Rio said. “He’s a powerful guy. He has a good work ethic. He has been a good teammate. Those are all the things I’ve been looking for.”

Not to mention the tremendous shot of confidence he gives his coaches and teammates.

“There’s a trust factor,” Condo said. Quarterback Derek Carr “knows that once we cross the 50-yard-line, ‘Hey, we get a couple of more yards, we’re in field-goal range.’ There’s nothing out of the question with the range that he has.”

Vic Tafur is a San Francisco Chronicle staff writer. E-mail: vtafur@sfchronicle.com Twitter: @VicTafur