Detroit Diesel: Release of New Garrett GTA40 & GTA42 Turbochargers for Series 60 Engines


Detroit Diesel has found a fixed number turbochargers with compressor wheel failures. As a result, current Series 60 engines with Garrett GT40 and GT42 turbochargers will be replaced by a newly designed GTA40 and GTA42 turbochargers. This change went into effect in April 2000.

Details & Reason

Detroit Diesel now installs the new GTA40 and GTA42 turbochargers on Series 60 applications. After exhaustion of old stock, the new part number may be used to service the old part number in all groups where the original part number was used. See Figure 1 for old and new turbocharger part numbers.


The difference between a GT and a GTA turbocharger, is that, a GTA turbocharger has a new CHRA (center housing rotating assembly) with a boreless compressor wheel. The servicing of these two turbochargers remains identical.

Jimmy Finch

Dallas Branch Manager, M&D Distributors

Jimmy Finch has over 33 years of experience in Diesel Engine Sales, Service and Repair. His experience started early in life at Texas Fuel Injection Service (an early acquisition of M&D) as a job with a means to an end. Somewhere in that 33 years this job turned into a fulfilling career. He started in the injector clean up department and has held practically every position leading up to his current role as Branch Manager of the Dallas, Texas location.

In his spare time, Jimmy enjoys spending time with his wife of 24 years, Priscilla. They are currently getting ready to make their way into the empty-nesters stage of life. He also enjoys the occasional hunting trip with friends and family and chasing down potential customers by the names off their trucks.

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