---
title: "Moorpark Diesel LLC — Clean Truck Check, Moorpark, CA"
description: "Moorpark Diesel LLC in Moorpark, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome…"
url: "https://ctcfinder.com/tester/moorpark-diesel-llc-moorpark/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Moorpark Diesel LLC

Clean Truck Check tester in Moorpark, CA (Ventura 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 | 619 Fitch Ave, Moorpark, CA 93021 |
| County | Ventura County |
| Phone | (805) 891-3313 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Moorpark Diesel LLC 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 Ventura County

Moorpark Diesel LLC is one of 68 testing businesses in Ventura County on CARB's public tester list. 61 of them offer mobile testing and 21 do smoke opacity tests. In Moorpark itself there are 4 listed businesses, 4 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 Moorpark Diesel LLC offer mobile Clean Truck Check testing?

Yes. Moorpark Diesel LLC 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 Moorpark Diesel LLC test a 2012 or older diesel truck?

Yes. Moorpark Diesel LLC 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 Moorpark Diesel LLC charge for a Clean Truck Check?

Moorpark Diesel LLC has not published prices with us; call (805) 891-3313 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 Moorpark Diesel LLC a CARB-credentialed tester?

Moorpark Diesel LLC 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

- **[Hi-Tech Auto](https://ctcfinder.com/tester/hi-tech-auto-moorpark/)** — 13806 Princeton Ave, Moorpark, CA 93021 — (805) 813-1145 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Kaylee Wale](https://ctcfinder.com/tester/kaylee-wale-moorpark/)** — Moorpark, CA 93021 — (805) 416-6230 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Rodriguez Trucking Mobile Diesel Repair](https://ctcfinder.com/tester/rodriguez-trucking-mobile-diesel-repair-moorpark/)** — 6416 N Duke St, Moorpark, CA 93021 — (805) 279-7743 — 1 mi. Services: mobile testing, OBD testing.
- **[A1 Emissions](https://ctcfinder.com/tester/a1-emissions-simi-valley/)** — 1933 3rd St, Simi Valley, CA 93065 — (805) 857-1085 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Juans Truck Smog](https://ctcfinder.com/tester/juans-truck-smog-simi-valley/)** — 679 E Easy St, Simi Valley, CA 93065 — (442) 322-0055 — 7 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[KC Truck Smog](https://ctcfinder.com/tester/kc-truck-smog-simi-valley/)** — 939 Talbert Ave, Simi Valley, CA 93065 — (805) 404-8842 — 7 mi. Services: mobile testing, OBD testing, motorhome testing.