★ RAM 2500 · DIESEL

Ram 2500 Smog Check

QUICK ANSWER

Ram 2500 (diesel) in California requires a standard biennial smog inspection at any BAR-licensed station. Key tip: Cummins 6.7L must have intact DPF + DEF + EGR. No deletes, no aftermarket tunes. Restore OEM before testing.

Smog tips for Ram 2500 owners

Cummins 6.7L must have intact DPF + DEF + EGR. No deletes, no aftermarket tunes. Restore OEM before testing.

For full Ram smog requirements, including hybrid + PHEV + BEV variants, see our Ram smog check guide.

Common questions

Where can I get a smog check for my Ram 2500?

Any of our 15 BAR-licensed STAR-certified locations in San Diego, Riverside, Orange, and Los Angeles counties handle Ram 2500 smog inspections. Walk-ins welcome — 15-25 minute inspections. Same-day DMV cert filing.

What's the common reason a Ram 2500 fails smog?

Cummins 6.7L must have intact DPF + DEF + EGR. No deletes, no aftermarket tunes. Restore OEM before testing.

How much does a Ram 2500 smog check cost?

$55-$85 plus the $8.25 California state certificate fee. Ram 2500 hybrid + PHEV variants are same pricing. BEV (100% electric) variants are exempt — no cost.

Is the Ram 2500 exempt from California smog?

Only 100% battery-electric variants are exempt. Hybrid and plug-in hybrid Ram 2500 models still need biennial smog inspection. Gasoline-only versions follow standard rules — required every 2 years for vehicles 8+ years old.