The Best GMC Repair in Mabton, WA

Compare the highest-rated gmc repair mechanics in Mabton, Washington. All shops are licensed, insured, and verified through our rigorous screening process.

#1

C & M Auto and Diesel Repair

4.7
(180 reviews)
Verified

A highly regarded, family-owned shop known for its deep expertise in both diesel and gasoline powertrains. They are a top choice for GMC owners in the Lower Yakima Valley due to their technical capability with complex systems like the Duramax and Allison, combined with a reputation for honest diagnostics and quality workmanship.

2601 Yakima Valley Hwy, Sunnyside, WA 98944

Specialties & Features

Duramax diesel service
Allison transmission repair
Heavy-duty truck suspension

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Prosser Automotive

4.6
(120 reviews)
Verified

A well-established, full-service automotive repair center with a strong reputation for comprehensive diagnostics and repair. They service a wide range of vehicles but have specific expertise and positive reviews related to GM trucks, including engine diagnostics, transmission service, and general maintenance.

1206 Wine Country Rd, Prosser, WA 99350

Specialties & Features

EcoTec engine diagnostics
Transmission repair
Towing package maintenance

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

Sunnyside Car Care

4.5
(90 reviews)
Verified

A trusted local repair shop praised for its customer service and reliable repairs. While they are a general repair facility, they have demonstrated consistent capability in handling the common needs of GMC truck owners, including suspension work, brake service, and electronic diagnostics.

2535 E Lincoln Ave, Sunnyside, WA 98944

Specialties & Features

4WD and towing system service
General engine diagnostics
Routine maintenance

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes

Why These Are the Top GMC Repair Auto Repair Shops in Mabton

** The GMC repair market serving Mabton, WA, is characterized by a reliance on nearby towns, primarily Sunnyside and Prosser, for specialized services. There are no dedicated GMC or Duramax-exclusive specialists within Mabton's city limits. The competitive landscape consists of a small number of highly dependable, long-standing independent shops that have built their reputation on serving the agricultural and commercial needs of the Yakima Valley. **Average Quality:** The average quality of service is high for general repairs but requires careful selection for complex diesel or luxury electronic issues. The top providers listed have consistently high customer satisfaction ratings. **Competition Level:** Competition is moderate. The longevity of these shops indicates a stable market where reputation is paramount. Residents are loyal to shops that prove trustworthy. **Typical Pricing:** Labor rates are generally more competitive than in larger metropolitan areas like Seattle or Tri-Cities, typically ranging from **$110 - $140 per hour**. However, for specialized diesel work (Duramax) or complex transmission diagnostics (Allison), the expertise required can command rates at the higher end of this spectrum. Parts pricing is consistent with national averages. For the most specialized needs (e.g., advanced Denali electronics or transmission rebuilding), residents may still need to travel to the Tri-Cities (Kennewick, Pasco, Richland), which hosts several dealerships and nationally recognized specialist chains.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All shops are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Mabton regulations and climate