--- title: "Clean Truck Check Testers in Wilton, CA (4 listed)" description: "Find 4 CARB-credentialed Clean Truck Check testers in Wilton, Sacramento County: 4 offer mobile testing, 4 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/sacramento-county/wilton/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Wilton, CA 4 testing businesses in Wilton (Sacramento County) are on CARB's public Clean Truck Check tester list (4 credentialed testers). 4 offer mobile testing, 4 do smoke opacity tests, 4 test motorhomes. > CTC Finder is an independent directory, not affiliated with CARB. Tester data: CARB Clean Truck Check public tester list, last checked November 1, 2026. Confirm services, hours and prices with the tester. ## Testers in Wilton - **[Cooper and SON](https://ctcfinder.com/tester/cooper-and-son-wilton/)** — Wilton, CA 95693 — (279) 272-8613. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[dieselcheckca.com](https://ctcfinder.com/tester/dieselcheckca-com-wilton/)** — Wilton, CA 95693 — (916) 243-5089. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Larry Martov MOBILE COMPLIANCE TESTING](https://ctcfinder.com/tester/larry-martov-mobile-compliance-testing-wilton/)** — Wilton, CA 95693 — (916) 538-7777. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Scott's Heavy Repair, Inc.](https://ctcfinder.com/tester/scotts-heavy-repair-inc-wilton/)** — 12249 Keating Rd, Wilton, CA 95693 — (530) 355-8700. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Amandeep Jhand](https://ctcfinder.com/tester/amandeep-jhand-elk-grove/)** — Elk Grove, CA 95624 — (209) 204-4047 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. - **[American Multi Services LLC](https://ctcfinder.com/tester/american-multi-services-llc-elk-grove/)** — 9875 Dino Dr, Elk Grove, CA 95624 — (916) 541-2045 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Best Truck and Trailer Repair](https://ctcfinder.com/tester/best-truck-and-trailer-repair-elk-grove/)** — 8318 Laporte Way, Elk Grove, CA 95624 — (408) 603-8182 — 5 mi. Services: mobile testing, OBD testing. - **[Clean Truck Check Sacramento](https://ctcfinder.com/tester/clean-truck-check-sacramento-elk-grove/)** — 9264 Sheba Cir, Elk Grove, CA 95624 — (916) 661-8288 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Elk Grove Truck & Trailer Repair Inc](https://ctcfinder.com/tester/elk-grove-truck-and-trailer-repair-inc-elk-grove/)** — 9900 Kent St, Elk Grove, CA 95624 — (916) 248-2971 — 5 mi. Services: mobile testing, OBD testing. - **[Feet Service](https://ctcfinder.com/tester/feet-service-elk-grove/)** — 8824 Flying Hawk Ct, Elk Grove, CA 95624 — (916) 402-5730 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jagvir Atwal](https://ctcfinder.com/tester/jagvir-atwal-elk-grove/)** — Elk Grove, CA 95624 — (916) 896-4337 — 5 mi. Services: not listed. - **[NorCal Calibration](https://ctcfinder.com/tester/norcal-calibration-elk-grove/)** — Elk Grove, CA 95624 — (559) 718-4378 — 5 mi. Services: mobile testing, OBD testing, motorhome testing. - **[On-Site Testing](https://ctcfinder.com/tester/on-site-testing-elk-grove/)** — 9422 Rhone Valley Way, Elk Grove, CA 95624 — (916) 538-7777 — 5 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Auto & Rig](https://ctcfinder.com/tester/auto-and-rig-sacramento/)** — 9367 Sugar Bush Cir, Sacramento, CA 95829 — (916) 516-4224 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Capital City Diesel Insp.](https://ctcfinder.com/tester/capital-city-diesel-insp-sacramento/)** — 6326 Turner Rd, Sacramento, CA 95829 — (916) 538-7777 — 8 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[DSP Logistics](https://ctcfinder.com/tester/dsp-logistics-sacramento/)** — 8293 Red Rock Dr, Sacramento, CA 95829 — (209) 483-5393 — 8 mi. Services: mobile testing, OBD testing. ## Trucking in Wilton Sacramento County sits at the I-5 / I-80 crossroads and has many government fleets, which are also subject to Clean Truck Check. ## Cost Typical published prices in California: OBD test $50–$135 per vehicle; smoke opacity test $190–$200. Prices are set by each tester. ## Frequently asked questions ### How many Clean Truck Check testers are in Wilton? CTC Finder lists 4 testing businesses in Wilton from CARB's public tester list (4 credentialed testers), last checked November 1, 2026. Listing on CARB's list is optional, so the real number can be higher. ### Is there mobile Clean Truck Check testing in Wilton? Yes. 4 listed businesses in Wilton offer mobile testing, which means the tester comes to your yard. Use the Mobile filter above to see them. ### How much does a Clean Truck Check test cost in Wilton? Testers set their own prices. Published prices for an OBD test are usually $50–$135 per vehicle; smoke opacity tests for older trucks often cost more, and mobile testers may add a trip fee. See the [cost guide](https://ctcfinder.com/guide/cost/). ### How often does my truck need a Clean Truck Check test? Most trucks test twice a year, on a schedule tied to the DMV registration expiration date. CARB says OBD trucks move to four tests a year beginning October 2027. California-registered (non-commercial) motorhomes and agricultural vehicles test once a year. See the [deadline guide](https://ctcfinder.com/guide/deadlines-2026-2027/). ## Nearby cities - [Elk Grove](https://ctcfinder.com/testers/sacramento-county/elk-grove/) — 16 listings, 8 mi - [Galt](https://ctcfinder.com/testers/sacramento-county/galt/) — 7 listings, 9 mi - [Rancho Cordova](https://ctcfinder.com/testers/sacramento-county/rancho-cordova/) — 5 listings, 13 mi - [Sacramento](https://ctcfinder.com/testers/sacramento-county/sacramento/) — 68 listings, 16 mi - [Folsom](https://ctcfinder.com/testers/sacramento-county/folsom/) — 5 listings, 19 mi - [Lodi](https://ctcfinder.com/testers/san-joaquin-county/lodi/) — 12 listings, 19 mi - [Shingle Springs](https://ctcfinder.com/testers/el-dorado-county/shingle-springs/) — 3 listings, 20 mi - [Mcclellan](https://ctcfinder.com/testers/sacramento-county/mcclellan/) — 4 listings, 21 mi - [Citrus Heights](https://ctcfinder.com/testers/sacramento-county/citrus-heights/) — 7 listings, 21 mi - [North Highlands](https://ctcfinder.com/testers/sacramento-county/north-highlands/) — 5 listings, 21 mi