Grand Slam Diesel Services LLC

Grand Slam Diesel Services LLC, a minority-owned sole proprietorship based in Virginia Beach, Virginia, provides diesel engine repair, rebuild, and component reconditioning services to the U.S. Coast Guard and select Department of the Navy customers as a prime contractor on small-dollar purchase orders, competing predominantly under Total Small Business Set-Aside and full-and-open procedures.

The vendor's customer base is heavily concentrated with the U.S. Coast Guard, which accounts for 40 awards and $1.4 million in combined potential value across the portfolio—representing 100% of the prime contract footprint. Two additional awards ($136 thousand combined) derive from U.S. Fleet Forces Command (Atlantic), with a single sub-award from the Department of the Army. Grand Slam's work sits entirely within marine diesel engine maintenance, repair, and rebuilding, grounded in repair of 6V92 and MTU S60 diesel engines mounted on Coast Guard 45-foot and 47-foot Motor Lifeboats and Response Boats. Representative prime awards include a $295,200 ceiling-value purchase order for repair of twelve Cummins QSC 8.3 engines to Fully Mission Capable status (July 2026, Curtis Bay, Maryland); a $105,300 order for open inspection and repair of 27 cylinder heads for 6V92 engines on 47-foot Motor Lifeboats (July 2025); and a $104,250 order for open inspection and possible repair of 30 turbo assemblies on 45-foot small boats, with delivery to the Coast Guard Surface Forces Logistics Center in Baltimore (September 2025). Smaller recurring awards address cylinder head replacement, cylinder kit repair, gear train and gear case repair, blower assembly reconditioning, and engine start-up testing and sea trials. Work is performed across distributed Coast Guard facilities nationwide—Baltimore, Bodega Bay, Miami, Clearwater, Ketchikan, Ilwaco, Galveston, Key West, and others—as well as at the contractor's Virginia Beach facility for component reconditioning. All work carries firm fixed-price terms.

The vendor's activity has grown from 11 awards in 2024 to 22 in 2025, with 10 awards logged through October 2026. Combined potential value across all 43 awards is $1.5 million, though obligated dollars exceed that figure at $2 million, reflecting executed task orders and price adjustments. Three awards (combined potential value $429 thousand) face ultimate completion dates within the next twenty-four months and represent recompete exposure. Grand Slam's sole subcontract engagement is a single Department of the Army award under HII Fleet Support Group LLC for emergency and unprogrammed repairs to U.S. Army Landing Craft Mechanized vessels (October 2025). The vendor does not hold seats on government-wide IDIQs, GWACs, or BPAs; all work flows through simplified acquisition purchase orders and brand-name sole-source solicitations. Set-aside posture splits between Total Small Business Set-Aside (approximately 50% of awards) and full-and-open procedures; neither recurs as a clear dominant strategy, though both carry firm fixed-price terms. The vendor competes directly for narrow, specialized marine diesel engine work requiring OEM Cummins or MTU technical certification and field experience on active Coast Guard fleets.