---
title: "Wolfh Diesel Electric Tech — Clean Truck Check, Paramount, CA"
description: "Wolfh Diesel Electric Tech in Paramount, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing. Phone, address…"
url: "https://ctcfinder.com/tester/wolfh-diesel-electric-tech-paramount/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Wolfh Diesel Electric Tech

Clean Truck Check tester in Paramount, CA (Los Angeles 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 | 7236 Rood St, Paramount, CA 90723 |
| County | Los Angeles County |
| Phone | (310) 461-6013 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Wolfh Diesel Electric Tech 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 | Not listed |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

For a 2012 or older diesel, the nearest listed tester with smoke opacity testing is Frank4CARB - Same-Day Mobile Service in Paramount, about 1 mile away. [See listing](https://ctcfinder.com/tester/frank4carb-same-day-mobile-service-paramount/).

## Clean Truck Check testers in Los Angeles County

Wolfh Diesel Electric Tech is one of 516 testing businesses in Los Angeles County on CARB's public tester list. 465 of them offer mobile testing and 190 do smoke opacity tests. In Paramount itself there are 3 listed businesses, 3 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 Wolfh Diesel Electric Tech offer mobile Clean Truck Check testing?

Yes. Wolfh Diesel Electric Tech 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 Wolfh Diesel Electric Tech test a 2012 or older diesel truck?

Wolfh Diesel Electric Tech does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [Frank4CARB - Same-Day Mobile Service](https://ctcfinder.com/tester/frank4carb-same-day-mobile-service-paramount/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does Wolfh Diesel Electric Tech charge for a Clean Truck Check?

Wolfh Diesel Electric Tech has not published prices with us; call (310) 461-6013 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 Wolfh Diesel Electric Tech a CARB-credentialed tester?

Wolfh Diesel Electric Tech 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

- **[Frank4CARB - Same-Day Mobile Service](https://ctcfinder.com/tester/frank4carb-same-day-mobile-service-paramount/)** — 15731 Paramount Blvd STE B, Paramount, CA 90723 — (949) 632-6277 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Mauricio Arevalo](https://ctcfinder.com/tester/mauricio-arevalo-paramount/)** — Paramount, CA 90723 — (562) 489-6640 — 1 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Elevate Testing Services](https://ctcfinder.com/tester/elevate-testing-services-downey/)** — 7440 LAURA ST, Downey, CA 90242 — (562) 922-5449 — 2 mi. Services: mobile testing, OBD testing.
- **[Busd](https://ctcfinder.com/tester/busd-bellflower/)** — 15330 Woodruff Ave, Bellflower, CA 90706 — (909) 568-5351 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Elizabeth Hanohano](https://ctcfinder.com/tester/elizabeth-hanohano-bellflower/)** — Bellflower, CA 90706 — (562) 650-7102 — 2 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Jacob Ochoa](https://ctcfinder.com/tester/jacob-ochoa-bellflower/)** — Bellflower, CA 90706 — (562) 338-2866 — 2 mi. Services: mobile testing, OBD testing.