--- title: "Clean Truck Check Testers in Fowler, CA (5 listed)" description: "Find 5 CARB-credentialed Clean Truck Check testers in Fowler, Fresno County: 4 offer mobile testing, 2 do smoke opacity tests. Phone numbers, services and…" url: "https://ctcfinder.com/testers/fresno-county/fowler/" updated: "2026-11-01" publisher: "CTC Finder (independent directory, not affiliated with CARB)" --- # Clean Truck Check testers in Fowler, CA 5 testing businesses in Fowler (Fresno County) are on CARB's public Clean Truck Check tester list (5 credentialed testers). 4 offer mobile testing, 2 do smoke opacity tests, 3 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 Fowler - **[Diesel Emissions Fortified LLC](https://ctcfinder.com/tester/diesel-emissions-fortified-llc-fowler/)** — Fowler, CA 93625 — (559) 574-9585. Services: mobile testing, OBD testing. - **[Diesel Specialties INC](https://ctcfinder.com/tester/diesel-specialties-inc-fowler/)** — 506 N 8th St, Fowler, CA 93625 — (559) 917-3096. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Pbviii](https://ctcfinder.com/tester/pbviii-fowler/)** — 1003 E Skylar Ave, Fowler, CA 93625 — (559) 558-7002. Services: mobile testing, OBD testing, motorhome testing. - **[Randeep Dhillon](https://ctcfinder.com/tester/randeep-dhillon-fowler/)** — Fowler, CA 93625 — (559) 593-3006. Services: OBD testing. - **[Sukhpreet Aulakh](https://ctcfinder.com/tester/sukhpreet-aulakh-fowler/)** — Fowler, CA 93625 — (559) 906-5151. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. ## More testers within 20 miles - **[Coast Counties Peterbilt -East](https://ctcfinder.com/tester/coast-counties-peterbilt-east-fresno/)** — 4390 S Bagley Ave, Fresno, CA 93725 — (559) 930-9951 — 3 mi. Services: OBD testing, smoke opacity (non-OBD) testing. - **[Cost Per Mile](https://ctcfinder.com/tester/cost-per-mile-fresno/)** — Fresno, CA 93725 — (559) 321-1085 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[Diesel Dynasty](https://ctcfinder.com/tester/diesel-dynasty-fresno/)** — 6251 E American Ave, Fresno, CA 93725 — (559) 514-4783 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing. - **[Dullet Truck Terminal](https://ctcfinder.com/tester/dullet-truck-terminal-fresno/)** — 2778 S Willow Ave, Fresno, CA 93725 — (559) 575-6556 — 3 mi. Services: OBD testing, motorhome testing. - **[East Bay Tire](https://ctcfinder.com/tester/east-bay-tire-fresno/)** — 2955 S Orange Ave, Fresno, CA 93725 — (559) 217-2533 — 3 mi. Services: mobile testing, OBD testing, motorhome testing. - **[G & H Diesel Service INC.](https://ctcfinder.com/tester/g-and-h-diesel-service-inc-fresno/)** — 3304 E Malaga Ave, Fresno, CA 93725 — (559) 217-2467 — 3 mi. Services: OBD testing, motorhome testing. - **[Gerald Hansen](https://ctcfinder.com/tester/gerald-hansen-fresno/)** — Fresno, CA 93725 — (559) 393-6007 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Gibbs Trucks Centers](https://ctcfinder.com/tester/gibbs-trucks-centers-fresno/)** — 2712 S 4th St, Fresno, CA 93725 — (559) 303-8477 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Jimmy Myers](https://ctcfinder.com/tester/jimmy-myers-fresno/)** — Fresno, CA 93725 — (559) 903-4298 — 3 mi. Services: mobile testing, OBD testing. - **[Sarbjit Singh](https://ctcfinder.com/tester/sarbjit-singh-fresno/)** — Fresno, CA 93725 — (559) 691-7634 — 3 mi. Services: mobile testing, OBD testing. - **[Somer Al Hossain](https://ctcfinder.com/tester/somer-al-hossain-fresno/)** — Fresno, CA 93725 — (530) 808-5601 — 3 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing. - **[Titan fleet maintenance](https://ctcfinder.com/tester/titan-fleet-maintenance-fresno/)** — 2525 E Malaga Ave, Fresno, CA 93725 — (559) 274-8030 — 3 mi. Services: mobile testing, OBD testing. ## Trucking in Fowler Fresno County is the agricultural heart of the San Joaquin Valley. Agricultural vehicles test once a year; other trucks test twice a year. ## 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 Fowler? CTC Finder lists 5 testing businesses in Fowler from CARB's public tester list (5 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 Fowler? Yes. 4 listed businesses in Fowler 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 Fowler? 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 - [Selma](https://ctcfinder.com/testers/fresno-county/selma/) — 11 listings, 6 mi - [Fresno](https://ctcfinder.com/testers/fresno-county/fresno/) — 74 listings, 11 mi - [Reedley](https://ctcfinder.com/testers/fresno-county/reedley/) — 4 listings, 15 mi - [Clovis](https://ctcfinder.com/testers/fresno-county/clovis/) — 9 listings, 17 mi - [Dinuba](https://ctcfinder.com/testers/tulare-county/dinuba/) — 4 listings, 17 mi - [Sanger](https://ctcfinder.com/testers/fresno-county/sanger/) — 4 listings, 18 mi - [Hanford](https://ctcfinder.com/testers/kings-county/hanford/) — 7 listings, 23 mi - [Lemoore](https://ctcfinder.com/testers/kings-county/lemoore/) — 5 listings, 25 mi - [Kerman](https://ctcfinder.com/testers/fresno-county/kerman/) — 3 listings, 26 mi - [Visalia](https://ctcfinder.com/testers/tulare-county/visalia/) — 19 listings, 28 mi