---
title: "Kern Diesel Repair LLC — Clean Truck Check, Wasco, CA"
description: "Kern Diesel Repair LLC in Wasco, 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/kern-diesel-repair-llc-wasco/"
updated: "2026-11-01"
publisher: "CTC Finder (independent directory, not affiliated with CARB)"
---

# Kern Diesel Repair LLC

Clean Truck Check tester in Wasco, CA (Kern 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 | 407 Quaking Aspen Ave, Wasco, CA 93280 |
| County | Kern County |
| Phone | (661) 375-5936 |
| Mobile testing | Yes |
| OBD testing | Yes |
| Smoke opacity (non-OBD) | Yes |
| Motorhomes | Yes |
| Credentialed testers | 1 |
| Last verified | 2026-11-01 |

## Which trucks Kern Diesel 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 | Yes |
| California-registered motorhome | Same test as above by engine year, once a year | Yes |

## Clean Truck Check testers in Kern County

Kern Diesel Repair LLC is one of 107 testing businesses in Kern County on CARB's public tester list. 89 of them offer mobile testing and 53 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 Kern Diesel Repair LLC offer mobile Clean Truck Check testing?

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

Yes. Kern Diesel Repair 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 Kern Diesel Repair LLC charge for a Clean Truck Check?

Kern Diesel Repair LLC has not published prices with us; call (661) 375-5936 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 Kern Diesel Repair LLC a CARB-credentialed tester?

Kern Diesel 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

- **[L & M Truck and Equipment LLC](https://ctcfinder.com/tester/l-and-m-truck-and-equipment-llc-wasco/)** — 308 Sagebrush Ct, Wasco, CA 93280 — (661) 583-9700 — 1 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing.
- **[Reuchon Transport](https://ctcfinder.com/tester/reuchon-transport-mc-farland/)** — 12239 Garzoli Ave, Mc Farland, CA 93250 — (661) 709-0460 — 14 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[Zoraida Sierra Baez](https://ctcfinder.com/tester/zoraida-sierra-baez-buttonwillow/)** — Buttonwillow, CA 93206 — (661) 201-7677 — 15 mi. Services: OBD testing.
- **[BIT Compliance Assurance](https://ctcfinder.com/tester/bit-compliance-assurance-shafter/)** — 3308 Trail River Ln, Shafter, CA 93263 — (661) 742-7827 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.
- **[On Site Clean Truck Check Carb Testing](https://ctcfinder.com/tester/on-site-clean-truck-check-carb-testing-shafter/)** — 262 Rodriguez Ave, Shafter, CA 93263 — (661) 910-2585 — 15 mi. Services: mobile testing, OBD testing, motorhome testing.
- **[Perez Trans LLC.](https://ctcfinder.com/tester/perez-trans-llc-shafter/)** — 551 Drake Dr, Shafter, CA 93263 — (661) 978-1588 — 15 mi. Services: mobile testing, OBD testing, smoke opacity (non-OBD) testing, motorhome testing.