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Diesel & truck repair in Ontario, CA

138 within 25 miles · 0 verified · updated November 1, 2026

There are 138 diesel and truck repair shops within 25 miles of Ontario, CA in the AssistAnt directory as of November 1, 2026, 7 of them based in Ontario itself. None are verified by AssistAnt yet, so check a business’s license and insurance before you hire it. Ranked by activity, never paid: members who pressed Boost this week come first, then verified and claimed businesses, then businesses whose website we checked, then everyone else nearest first. No one can pay for a higher spot.

Diesel & truck repair near Ontario

Ranked by activity, never paid. Boosted this week first, then verified and claimed, then website checked, then everyone else nearest first. Not on this list? Add yourself free →

Showing the 30 listed first. Search by ZIP code to see more.

More near Ontario

Same order as above, continued.

Questions

How many diesel and truck repair shops are near Ontario, CA?
138 within 25 miles, 7 in Ontario, as of November 1, 2026.
Which diesel and truck repair shops near Ontario, CA are verified?
None yet. Verified means AssistAnt checked the business registration and insurance; unverified listings come from public business records.
Can a business pay to rank higher on AssistAnt?
No. Ranked by activity, never paid: members who pressed Boost this week come first, then verified and claimed businesses, then businesses whose website we checked, then everyone else nearest first. No one can pay for a higher spot. AssistAnt never sells your contact information.

More in Ontario

Every trade and local freelancer in Ontario →

Nearby towns

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