Monkey's Smog Center

Yes. Monkey's Smog Center is licensed as a Test Only smog station. This station performs the smog test and issues the certificate. It does not do repairs, so a failed vehicle has to be fixed elsewhere and brought back.

Monkey's Smog Center is open Monday 8 AM to 5:30 PM; Tuesday 8 AM to 5:30 PM; Wednesday 8 AM to 5:30 PM; Thursday 8 AM to 5:30 PM; Friday 8 AM to 5 PM; Saturday 8 AM to 3 PM; Sunday 10 AM to 3 PM. Hours can change on holidays, so call ahead if you are cutting it close.

Yes. Monkey's Smog Center accepts walk-ins, so you can drive in without booking ahead.

Monkey's Smog Center accepts Cash, Credit Card.

Monkey's Smog Center has held a BAR smog license since 2025. You can verify the license status at bar.ca.gov.

Monkey's Smog Center has not published a price on SmogCheckDeals. The Bureau of Automotive Repair puts the statewide average at $69.16 as of August 2026, about $65 for a 2000-or-newer vehicle and $73 for 1999-or-older, plus the $8.25 certificate fee. Call (209) 595-6293 for a quote.

Monkey's Smog Center does not take online bookings here, but walk-ins are welcome. Call (209) 595-6293 to check the wait.

Staff at Monkey's Smog Center speak English.

Bring the car, your registration or DMV renewal notice, and a way to pay. Most smog checks take 15 to 30 minutes, and most visits are closer to 20.

Monkey's Smog Center is a Test Only station, so it cannot do the repair. You would have the work done at a repair shop, then come back for the free retest within 30 days. California's Consumer Assistance Program covers up to $1,200 of emissions repairs for qualifying owners.

The closest alternatives in Oakdale are Oakdale Garage Inc (0.4 mi) and American Smog And Dmv (0.5 mi). Both are listed further up this page with their ratings and hours.