Houston Drive Train Vehicle Component Sales, Inc.

Houston Drive Train Vehicle Component Sales, Inc., doing business as HDT Vehicle Component Sales, Inc., is a small business supplier of automotive and aerospace spare parts for military ground vehicles, aircraft, and maritime vessels, operating as a prime contractor under full-and-open and Total Small Business set-aside delivery orders issued primarily by the Defense Logistics Agency.

The company is a for-profit corporation headquartered in Hockley, Texas, with operations in Houston, Texas. It has maintained federal contractor registration since April 2002 and operates exclusively as a prime contractor—100 percent of its 8,463 recent federal awards are prime contracts and indefinite delivery vehicles with no subcontract activity. HDT competes predominantly under Total Small Business set-aside vehicles across the Defense Logistics Agency supply chain, though a material share of recent awards carry no set-aside designation, indicating recurring full-and-open competition as well.

HDT's capability portfolio centers on discrete automotive and drivetrain components and assemblies. Representative recent work spans brake system components (brake chambers, brake drums, brake shoes, disc brakes, calipers, brake lining kits, brake booster assemblies), seals and gaskets (plain encased seals, seal kits, gasket assemblies, O-rings, grease caps), bearing assemblies (tapered roller bearings and cones, ball bearings, universal joint bearings), transmission and drivetrain parts (propeller shafts, universal joints, spider assemblies, carrier gear assemblies, bevel gears, straight shafts, differentials), hydraulic and mechanical components (air brake chambers, cylinders, pumps, valves, filter elements), and fasteners and hardware (machine screws, self-locking nuts, cap screws, bolts, washers). A $935,550 purchase order awarded January 16, 2026, for 46,200 cushioning pads reflects the company's capacity for large-unit orders. A $472,892.70 delivery order for tie rod steering components (November 14, 2025) and a $139,107.80 order for cylinder assemblies (November 13, 2025) exemplify mid-to-large-value work. Recent smaller orders for individual components—seals, bolts, pins, clips—at values under $5,000 demonstrate the high-transaction-volume, low-value-per-order cadence characteristic of Defense Logistics Agency supply chain operations.

Customer concentration is extreme and concentrated within a single federal agency and its divisions. The Defense Logistics Agency accounts for 99 percent of awards across three primary customer lines: DLA Land and Maritime (5,118 awards, $199.7 million combined potential value), DLA Aviation (1,828 awards, $39.5 million), and DLA Troop Support Hardware (1,125 awards, $20 million). These three customer offices represent 96 percent of the company's combined potential value. The Army Materiel Command Contracting Command Detroit Arsenal has placed only 20 awards worth $7.4 million, indicating minimal diversification beyond the Defense Logistics Agency ecosystem.

HDT holds an extensive portfolio of single-award indefinite delivery contracts with DLA Land and Maritime and DLA Aviation divisions. The five largest by task-order volume are IDC SPE5EY19D0572 (169 orders, $1.4 million), SPE7LX19D0201 (130 orders, $7.7 million), SPE5EY14D0536 (91 orders, $7.4 million), SPE7LX14D0125 (73 orders, $3 million), and SPE7LX18D5033 (37 orders, $969 thousand). Recent source data shows HDT awarded 21 new single-award IDCs between January and June 2026, each with a $350,000 ceiling and one-year performance periods or until ceiling is reached. Most are structured as Total Small Business set-asides under DLA Land and Maritime and carry annual ordering estimates of 4 to 12 delivery orders per vehicle. IDCs cover air brake chambers, propeller shafts, filter elements, seals, gaskets, universal joints, bearings, brake components, and related vehicle maintenance parts. Two 2026 IDCs awarded by DLA Aviation (contracts 4610129507 and 4610131673) carry five-year performance periods extending through 2030–2031, suggesting a longer-term supplier relationship for aviation-focused components.

Activity has declined materially over the past five years, from 766 awards in 2022 to 97 in 2026 (year-to-date through June 21). Awards per year dropped 87 percent from 2022 to 2025, with only 36 awards facing completion within the next twenty-four months and carrying $2.8 million in combined potential value—a modest recompete exposure in absolute terms but reflecting the sharp reduction in annual order volume. The decline coincides with the shift from high-transaction-volume purchases across multiple indefinite delivery contracts (2022–2023) to a consolidation around fewer, higher-ceiling IDCs (2024–2026).

HDT does not subcontract; 100 percent of its award footprint is prime work. The vendor receives no sub-awards from larger primes and does not tier down work to other contractors.

The company's category concentration reflects its core competency in drivetrain and vehicle maintenance components. Top NAICS codes are Ball and Roller Bearing Manufacturing (1,429 awards), Gasket, Packing, and Sealing Device Manufacturing (1,103 awards), Motor Vehicle Transmission and Power Train Parts Manufacturing (971 awards), Bolt, Nut, Screw, Rivet, and Washer Manufacturing (724 awards), and Motor Vehicle Brake System Manufacturing (722 awards). Top PSC codes are Vehicular Brake, Steering, Axle, Wheel, and Track Components (1,652 awards), Packing and Gasket Materials (1,328 awards), Bearings, Antifriction, Unmounted (1,062 awards), and Vehicular Power Transmission Components (874 awards). This concentration signal indicates a commodity supplier—high volume, standardized components, recurring demand, and thin margins—with minimal differentiation outside the DLA supply chain network.