---
title: "Perez Bros Diesel Repair — Clean Truck Check, Zamora, CA"
description: "Perez Bros Diesel Repair in Zamora, 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/perez-bros-diesel-repair-zamora/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Perez Bros Diesel Repair

Clean Truck Check tester in Zamora, CA (Yolo 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 | 9720 County Road 99w, Zamora, CA 95698 |
| County | Yolo County |
| Phone | (530) 312-8314 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Perez Bros Diesel Repair 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 Yolo County

Perez Bros Diesel Repair is one of 42 testing businesses in Yolo County on CARB's public tester list. 36 of them offer mobile testing and 23 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 Perez Bros Diesel Repair offer mobile Clean Truck Check testing?

Yes. Perez Bros Diesel Repair 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 Perez Bros Diesel Repair test a 2012 or older diesel truck?

Yes. Perez Bros Diesel Repair 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 Perez Bros Diesel Repair charge for a Clean Truck Check?

Perez Bros Diesel Repair has not published prices with us; call (530) 312-8314 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 Perez Bros Diesel Repair a CARB-credentialed tester?

Perez Bros Diesel Repair 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

- **[DGT](https://ctcfinder.com/tester/dgt-dunnigan/)** — Dunnigan, CA 95937 — (530) 304-7280 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Gerardo Vargas](https://ctcfinder.com/tester/gerardo-vargas-esparto/)** — Esparto, CA 95627 — (530) 402-5263 — 8 mi. Services: mobile testing, OBD testing.
- **[Paul Mendoza](https://ctcfinder.com/tester/paul-mendoza-woodland/)** — Woodland, CA 95695 — (530) 514-5441 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Vadim Yev CAPITAL CITY DIESEL INSPECTIONS](https://ctcfinder.com/tester/vadim-yev-capital-city-diesel-inspections-woodland/)** — 10 West Main St, Woodland, CA 95695 — (916) 538-7777 — 9 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Yolo Smog](https://ctcfinder.com/tester/yolo-smog-woodland/)** — 374 W Main St, Woodland, CA 95695 — (530) 383-9330 — 9 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Best Smog](https://ctcfinder.com/tester/best-smog-woodland/)** — 315 East St, Woodland, CA 95776 — (530) 312-7780 — 14 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.