Central Diesel, Inc.

Central Diesel, Inc., doing business as Central Diesel Inc., is a woman-owned small business based in Richmond, Virginia, that manufactures and distributes diesel engine parts, components, and replacement assemblies to the Department of Defense as a prime contractor (100% of recent awards). The company holds SBA certifications as an Economically Disadvantaged Women-Owned Small Business and Women-Owned Small Business.

Central Diesel's footprint is dominated by transactional, high-volume purchase orders and delivery orders through the Defense Logistics Agency (DLA), primarily DLA Land and Maritime. The vendor supplies concrete diesel engine components: filter elements (fluid and intake air), starter motors and generators, engine blocks and assemblies, fuel pumps, gaskets, seals, fasteners, and related accessories for military vehicles, vessels, and ground equipment. Representative recent work includes a $157.5 million total-small-business purchase order from DLA Land and Maritime for 15 engine block assemblies (March 2022); a $2.1 million indefinite delivery contract with DLA Land and Maritime for INTA filter elements set aside for small business (October 2023); a $721.2 million indefinite delivery contract with the Department of the Air Force Pacific Air Forces for Deutz diesel engine kits (May 2022, two delivery orders totaling $275.5 thousand issued through August 2023); and a $504 thousand delivery order from the Department of the Army Materiel Command TACOM Life Cycle Management Command for tanker trailer engine and pump services (October 2022).

Customer concentration is extreme and creates material pipeline risk. DLA Land and Maritime accounts for 2,654 awards (97% of documented volume) worth $35.5 million in combined potential value, dominating the vendor's footprint by both frequency and dollars. The secondary revenue layer is sparse: the United States Marine Corps (3 awards, $4.2 million), the Department of the Air Force Pacific Air Forces (11 awards, $3 million), and the Department of the Army Materiel Command TACOM Life Cycle Management Command (4 awards, $2.7 million) together account for less than 11% of combined potential value. DLA Troop Support Hardware and Aviation bring transactional volume but minimal dollars. This dependency on a single DLA customer for 97% of award count and 66% of documented potential value exposes the vendor to significant recompete and supply chain concentration risk.

Activity has declined sharply: the vendor recorded 640 awards in 2020, 443 in 2021, 221 in 2022, 25 in 2023, and 1 award in 2026 through mid-July. This collapse mirrors the exhaustion of a high-volume, high-frequency transaction model rather than loss of individual large contracts; most awards are purchase orders for single items or small quantities with sub-five-figure ceilings. The portfolio carries $27.4 million in obligated dollars against $53.5 million in potential value (51% obligation rate), consistent with a vendor supplying recurring consumables and components through standing IDCs where task orders flow throughout the performance period.

Central Diesel holds or has held multiple single-award indefinite delivery contracts with DLA Land and Maritime and other customers, including contracts for filter elements (four separate IDCs with $250 thousand ceilings each, awarded between March and May 2022), starter motors and generators (two IDCs with $250 thousand ceilings, June 2022), engine generators (one $250 thousand IDC, March 2022), and Deutz engines with the Air Force ($721.2 million ceiling, May 2022). The vendor also holds a $2.1 million indefinite delivery contract with TACOM LCMC for tanker trailer engine pump units (October 2022). Most DLA IDCs are set-aside for total small business and carry one-year base periods with 45- to 92-day delivery windows for individual orders. This vehicle structure explains the award density and short individual contract durations.

The work is concentrated in diesel engine parts and components across five primary NAICS categories: Other Engine Equipment Manufacturing (485 awards), Motor Vehicle Electrical and Electronic Equipment Manufacturing (387 awards), Engine Electrical System Components (430 PSC-coded awards), and Engine Fuel System Components (405 PSC-coded awards). The portfolio spans fasteners, gaskets, seals, bearings, housings, armatures, regulators, switches, fans, and connectors—the full range of supporting components that anchor a diesel powertrain.

Central Diesel competes predominantly in full-and-open and total-small-business set-aside categories; approximately 50% of the documented IDC base carries small-business set-asides. The vendor does not appear on named GWACs or government-wide vehicles; the footprint is anchored to single-award DLA and Army contracts. No subcontractor relationships are documented. The extreme volume and velocity of the DLA Land and Maritime orders, combined with the sharp award decline beginning in 2023, suggests the vendor may have been displaced from standing IDCs or that those contracts have completed and have not been recompeted in Central Diesel's favor.

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