---
title: "Maggiora Bro Drilling — Clean Truck Check, Gilroy, CA"
description: "Maggiora Bro Drilling in Gilroy, CA is on CARB's Clean Truck Check tester list with 2 credentialed testers. Offers mobile testing, OBD testing, smoke opacity…"
url: "https://ctcfinder.com/tester/maggiora-bro-drilling-gilroy/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Maggiora Bro Drilling

Clean Truck Check tester in Gilroy, 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 | Gilroy, CA 95020 |
| County | Santa Clara County |
| Phone | (669) 469-9223 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 2 |
| Last verified | 2026-11-01 |

## Which trucks Maggiora Bro Drilling 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

Maggiora Bro Drilling 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. In Gilroy itself there are 13 listed businesses, 10 of them mobile.

## 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 Maggiora Bro Drilling offer mobile Clean Truck Check testing?

Yes. Maggiora Bro Drilling 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 Maggiora Bro Drilling test a 2012 or older diesel truck?

Yes. Maggiora Bro Drilling 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 Maggiora Bro Drilling charge for a Clean Truck Check?

Maggiora Bro Drilling has not published prices with us; call (669) 469-9223 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 Maggiora Bro Drilling a CARB-credentialed tester?

Maggiora Bro Drilling appears on CARB's public Clean Truck Check tester list with 2 credentialed testers, 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

- **[B&L Truck and Tractor Repair](https://ctcfinder.com/tester/b-and-l-truck-and-tractor-repair-gilroy/)** — 8594 Forest St, Gilroy, CA 95020 — (831) 889-8611 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Cruz Tire & Truck Repair](https://ctcfinder.com/tester/cruz-tire-and-truck-repair-gilroy/)** — 5870 Monterey Rd A, Gilroy, CA 95020 — (909) 533-0433 — 1 mi. Services: mobile testing, OBD testing.
- **[Dhillon CARB Testing](https://ctcfinder.com/tester/dhillon-carb-testing-gilroy/)** — 1125 Violet Way, Gilroy, CA 95020 — (408) 775-9600 — 1 mi. Services: mobile testing, OBD testing.
- **[Mateo Huerta](https://ctcfinder.com/tester/mateo-huerta-gilroy/)** — Gilroy, CA 95020 — (650) 290-0652 — 1 mi. Services: mobile testing, OBD testing.
- **[Mosher Equipment Services LLC](https://ctcfinder.com/tester/mosher-equipment-services-llc-gilroy/)** — 1290 Masten Ave, Gilroy, CA 95020 — (408) 660-5693 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Premier Diesel LLC](https://ctcfinder.com/tester/premier-diesel-llc-gilroy/)** — 6484 Automall Pkwy, Gilroy, CA 95020 — (408) 842-2999 — 1 mi. Services: OBD testing.