Diesel Specialists, L.L.C.

Diesel Specialists, L.L.C., doing business as Diesel Parts Direct, supplies diesel engine components and related equipment to the federal government as a prime contractor on a high-volume, low-dollar-value transactional basis, with occasional subcontract work. The company is a for-profit limited liability corporation headquartered in Baton Rouge, Louisiana, competing on full-and-open purchase orders with no set-aside designations across its recent federal award footprint.

Diesel Parts Direct's capability portfolio centers on diesel engine components, lubricity filters, gaskets, spur gears, and related power-plant and drivetrain equipment. The vendor operates primarily as a supplier of maintenance, repair, and operations (MRO) parts to military and maritime customers. Recent representative prime awards include a $34.2 thousand firm fixed-price purchase order from the Defense Logistics Agency Troop Support Construction and Equipment division for filter-separator components (ultimate completion May 2023), a $1.6 thousand DLA Land and Maritime purchase order for spur gears (February 2026), and a $984 purchase order from DLA Land and Maritime for gasket assemblies (April 2023). The vendor's subcontract footprint is minimal—two recent modifications related to lubricity filter supply under Lockheed Martin prime contracts (November 2024 and June 2024) represent the full visible sub-engagement.

Customer concentration is dispersed across maritime and military operations. The Department of Homeland Security US Coast Guard anchors award count at four orders ($21 thousand combined potential value), while the Defense Logistics Agency Land and Maritime and the Department of Commerce National Oceanic and Atmospheric Administration each carry two to four orders. By dollar magnitude, NOAA and DLA Troop Support Construction and Equipment lead at $45 thousand and $34 thousand respectively. Across both rankings, the top five customer organizations account for 50–68% of awards and potential value, indicating a transactional, order-driven relationship pattern rather than prime contract concentration.

The award footprint spans NAICS categories dominated by diesel and engine-component manufacturing (Other Engine Equipment Manufacturing, 4 awards; Transportation Equipment and Supplies Merchant Wholesalers, 3 awards) and PSC codes concentrated on Diesel Engines and Components (7 awards) and Engine Filters (2 awards). Activity volume remains low and episodic—two awards in 2024, two in 2026, with a multiyear gap in between—reflecting the spot-purchase nature of the relationship. Combined potential value across all 28 awards (93% prime, 7% sub) sits at $222 thousand, though obligated dollars total $407 thousand, indicating consistent order-fulfillment against recurring demand signals. No parent vehicles or IDIQs are present in the source data; all awards are transactional purchase orders with no multi-year contract vehicles or blanket purchasing arrangements.

Diesel Specialists, LLC specializes in the sales and service of heavy duty industrial diesel engines.