Duffin Diesel: Precision Diesel Engine Machining

Over-the-Road, Industrial and Agricultural diesel engine machine shop.

Duffin Diesel: Precision Diesel Engine Machining is a diesel repair shop in San Antonio, Texas. It is listed at 1227 Hallmark Dr, San Antonio, TX 78216, which places it among the local businesses of San Antonio that residents and visitors turn to when they need this kind of service close by. Google also lists it under used auto parts store, which is worth knowing if you are comparing several options in the area.

Auto repair in the United States is split between independent shops, dealership service departments and national chains. Independents handle most routine work (oil changes, brakes, tune-ups, check-engine diagnostics) at lower labor rates and often specialize in one make or in imports; dealers keep factory tools, software and warranty authority; chains sell speed and standard pricing on maintenance items. Most shops charge a diagnostic fee, credited toward the repair if you go ahead, and quote parts and labor separately. Certification matters: look for ASE-certified technicians and, in many states, a state repair license posted at the counter. Written estimates are required by law in most states before work begins, and you are entitled to your old parts if you ask.

Hours are published for 5 days a week. Typical hours are 8 am–5 pm. It is closed on Saturday, Sunday. Hours in the United States do change around federal holidays and long weekends, so a quick call before a special trip is sensible. The listed phone number is (210) 341-8183. Many businesses also reply to text messages on the same number if it is a cell phone. More information is available on its website, duffindiesel.com.

Customers rate it 4.4 out of 5 on Google across 69 reviews, placing it among the better-regarded diesel engine repair in San Antonio.

San Antonio is in Texas, in the South, where summers are hot and humid, winters are short, and severe storms in spring are a fact of life; businesses run air conditioning most of the year and many open early to beat the heat. Traffic in San Antonio peaks on weekday mornings and afternoons, so allow extra time then. Addresses read from the street number up to the city, state abbreviation and five-digit ZIP code; the map link on this page shows the exact spot.

Looking for alternatives? Browse all diesel engine repair in San Antonio or explore other categories in the area from the links below. Details on this page come from public sources and may change; confirm anything important by phone before relying on it. Business owners can claim the listing to keep it up to date.