---
title: "A.J.’s Mobile Truck Service — Clean Truck Check, Los Gatos, CA"
description: "A.J.’s Mobile Truck Service in Los Gatos, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing…"
url: "https://ctcfinder.com/tester/a-j-s-mobile-truck-service-los-gatos/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# A.J.’s Mobile Truck Service

Clean Truck Check tester in Los Gatos, CA (Santa Clara County).

> 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.

| Field | Value |
|---|---|
| Location | 123 Bacigalupi Dr, Los Gatos, CA 95032 |
| County | Santa Clara County |
| Phone | (408) 482-7358 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks A.J.’s Mobile Truck Service can test

| Your vehicle | Test required | This tester |
|---|---|---|
| Diesel, model year 2013 or newer | OBD scan | Yes |
| Alternative fuel (natural gas, propane), 2018 or newer | OBD scan | Yes |
| Diesel, model year 2012 or older (no OBD) | Smoke opacity test (SAE J1667) plus visual inspection | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Santa Clara County

A.J.’s Mobile Truck Service is one of 79 testing businesses in Santa Clara County on CARB's public tester list. 67 of them offer mobile testing and 27 do smoke opacity tests.

## When your truck is due

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/). You can test up to 90 days before a deadline. Free email reminders: https://ctcfinder.com/reminders/

## Frequently asked questions

### Does A.J.’s Mobile Truck Service offer mobile Clean Truck Check testing?

Yes. A.J.’s Mobile Truck Service says on CARB's tester list that it offers mobile testing, so it can come to your yard or job site. Ask about a trip fee when you call.

### Can A.J.’s Mobile Truck Service test a 2012 or older diesel truck?

Yes. A.J.’s Mobile Truck Service lists smoke opacity testing, the test CARB requires for diesel trucks of model year 2012 and older (no OBD). See [OBD vs smoke opacity](https://ctcfinder.com/guide/obd-vs-smoke-opacity-test/).

### How much does A.J.’s Mobile Truck Service charge for a Clean Truck Check?

A.J.’s Mobile Truck Service has not published prices with us; call (408) 482-7358 for a quote. Published California prices are usually $50–$135 per vehicle for an OBD test and $190–$200 for a smoke opacity test, plus CARB's annual fee ($32.13 in 2026). See the [cost guide](https://ctcfinder.com/guide/cost/).

### Is A.J.’s Mobile Truck Service a CARB-credentialed tester?

A.J.’s Mobile Truck Service appears on CARB's public Clean Truck Check tester list, last checked November 1, 2026. Only credentialed testers can submit results to CARB; after the test, confirm the passing result shows for your vehicle in CTC-VIS.

## Other testers nearby

- **[South Bay Mobile Smog](https://ctcfinder.com/tester/south-bay-mobile-smog-los-gatos/)** — Los Gatos, CA 95030 — (408) 458-7621 — 5 mi. Services: mobile testing, OBD testing.
- **[Mike Kazemi](https://ctcfinder.com/tester/mike-kazemi-san-jose/)** — San Jose, CA 95124 — (510) 357-2525 — 5 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[James Risher](https://ctcfinder.com/tester/james-risher-san-jose/)** — San Jose, CA 95123 — (775) 781-0679 — 6 mi. Services: mobile testing, OBD testing.
- **[Reo Inc-Stchevron](https://ctcfinder.com/tester/reo-inc-stchevron-san-jose/)** — 6096 Cottle Rd, San Jose, CA 95123 — (408) 226-7414 — 6 mi. Services: OBD testing, motorhome testing.
- **[Roberto Garcia](https://ctcfinder.com/tester/roberto-garcia-san-jose/)** — San Jose, CA 95123 — (669) 286-6463 — 6 mi. Services: mobile testing, OBD testing.
- **[Andrew Newland](https://ctcfinder.com/tester/andrew-newland-campbell/)** — Campbell, CA 95008 — (408) 691-1746 — 7 mi. Services: OBD testing, motorhome testing.