---
title: "n and a diesel truck and trailer repair, LLC — Clean Truck Check, Corona, CA"
description: "n and a diesel truck and trailer repair, LLC in Corona, CA is on CARB's Clean Truck Check tester list. Offers mobile testing, OBD testing, motorhome testing…"
url: "https://ctcfinder.com/tester/n-and-a-diesel-truck-and-trailer-repair-llc-corona/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# n and a diesel truck and trailer repair, LLC

Clean Truck Check tester in Corona, CA (Riverside 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 | 2574 Redrock Dr, Corona, CA 92882 |
| County | Riverside County |
| Phone | (951) 207-2913 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | No |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks n and a diesel truck and trailer repair, 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 | 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 A plus auto and truck repair inc in Corona, about 1 mile away. [See listing](https://ctcfinder.com/tester/a-plus-auto-and-truck-repair-inc-corona/).

## Clean Truck Check testers in Riverside County

n and a diesel truck and trailer repair, LLC is one of 251 testing businesses in Riverside County on CARB's public tester list. 233 of them offer mobile testing and 102 do smoke opacity tests. In Corona itself there are 18 listed businesses, 17 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 n and a diesel truck and trailer repair, LLC offer mobile Clean Truck Check testing?

Yes. n and a diesel truck and trailer repair, 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 n and a diesel truck and trailer repair, LLC test a 2012 or older diesel truck?

n and a diesel truck and trailer repair, LLC does not list smoke opacity testing, which older non-OBD diesel trucks need. The nearest listed tester that does is [A plus auto and truck repair inc](https://ctcfinder.com/tester/a-plus-auto-and-truck-repair-inc-corona/) (about 1 mile). Trucks from 2013 on get an OBD scan instead.

### How much does n and a diesel truck and trailer repair, LLC charge for a Clean Truck Check?

n and a diesel truck and trailer repair, LLC has not published prices with us; call (951) 207-2913 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 n and a diesel truck and trailer repair, LLC a CARB-credentialed tester?

n and a diesel truck and trailer repair, 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

- **[A plus auto and truck repair inc](https://ctcfinder.com/tester/a-plus-auto-and-truck-repair-inc-corona/)** — 1359 W 6th St Suite D, Corona, CA 92882 — (949) 870-7444 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Clean Truck Check Express Mobile Service](https://ctcfinder.com/tester/clean-truck-check-express-mobile-service-corona/)** — 2536 Bulrush Cir, Corona, CA 92882 — (949) 331-2198 — 1 mi. Services: mobile testing, OBD testing.
- **[HD Carb Check](https://ctcfinder.com/tester/hd-carb-check-corona/)** — 12495 Limonite Ave, Corona, CA 92882 — (909) 636-2389 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Hp clean truck check](https://ctcfinder.com/tester/hp-clean-truck-check-corona/)** — 450 S Main St, Corona, CA 92882 — (714) 397-8025 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Godofredo Valencia](https://ctcfinder.com/tester/godofredo-valencia-corona/)** — Corona, CA 92878 — (951) 818-8605 — 2 mi. Services: mobile testing, OBD testing.
- **[SVT Fleet Solution](https://ctcfinder.com/tester/svt-fleet-solution-corona/)** — 509 Bateman Cir, Corona, CA 92878 — (562) 896-3429 — 2 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.