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NAICS Code· 336310

NAICS 336310: Motor Vehicle Gasoline Engine and Engine Parts Manufacturing

This industry comprises establishments primarily engaged in (1) manufacturing and/or rebuilding motor vehicle gasoline engines and engine parts and/or (2) manufacturing and/or rebuilding carburetors, pistons, piston rings, and engine valves, whether or not for vehicular use. Illustrative Examples: Carburetors, all types, manufacturing Crankshaft assemblies, automotive and truck gasoline engine, manufacturing Cylinder heads, automotive and truck gasoline engine, manufacturing Fuel injection systems and parts, automotive and truck gasoline engine, manufacturing Gasoline engines for hybrid automotive vehicles manufacturing Pistons and piston rings manufacturing Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing Pumps (e.g., fuel, oil, water), mechanical, automotive and truck gasoline engine (except power steering), manufacturing Timing gears and chains, automotive and truck gasoline engine, manufacturing Valves, engine, intake and exhaust, manufacturing Cross-References. Establishments primarily engaged in--Show more

NAICS 336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing encompasses the design, development, and production of internal combustion engines and associated components specifically for gasoline-powered motor vehicles. This includes crankshafts, pistons, cylinder heads, fuel injection systems, timing chains, and other precision-engineered parts critical to engine performance, emissions compliance, and durability.

164
Active Contracts
$167.3M
Total Obligations (12mo)
2.0K
Awarded Contracts (12mo)
447
Contractors Awarded (12mo)
111
Median Bidders per Award
+26.8%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 336310.

AI Industry Description

NAICS 336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing encompasses the design, development, and production of internal combustion engines and associated components specifically for gasoline-powered motor vehicles. This includes crankshafts, pistons, cylinder heads, fuel injectio...

NAICS 336310 – Motor Vehicle Gasoline Engine and Engine Parts Manufacturing encompasses the design, development, and production of internal combustion engines and associated components specifically for gasoline-powered motor vehicles. This includes crankshafts, pistons, cylinder heads, fuel injection systems, timing chains, and other precision-engineered parts critical to engine performance, emissions compliance, and durability. In government contracting, this sector supports military vehicle fleets, tactical transport platforms, and specialized ground systems requiring ruggedized, high-torque gasoline engines that meet DoD specifications for operational reliability under extreme conditions. While commercial automotive manufacturing dominates this space, federal demand focuses on niche applications where engine modularity, rapid field repairability, and compatibility with legacy military platforms are essential. Everstone Industries LLC stands as the leading contractor in this space, specializing in precision machining, cast aluminum components, and after-market engine rebuild kits tailored for military vehicle fleets. The competitive landscape is dominated by small businesses and Tier 2 suppliers with AS9100 and ITAR certifications, leveraging specialized tooling and low-volume production capabilities to serve niche DoD requirements. Large primes typically integrate these components into broader vehicle systems rather than manufacturing engines in-house. The Department of Defense is the primary federal buyer, with demand driven by sustainment programs for legacy armored vehicles, light tactical wheeled platforms, and expeditionary support vehicles. Procurement is concentrated in maintenance, repair, and overhaul (MRO) contracts, as well as engineering modifications to meet evolving fuel efficiency and emissions standards for military use. The market is characterized by low contractor density and high technical barriers to entry, creating sustained opportunities for specialized manufacturers with certified production processes and defense supply chain experience. Long-term sustainment contracts and retrofit initiatives continue to drive steady, if not high-volume, procurement activity.

Small Business Size Standard

The SBA threshold that decides who can bid NAICS 336310 work as a small business.

1,050 employees
Applies to the whole industry code

The SBA cap for this NAICS (13 CFR 121.201). A business at or under it can self-certify as small for work in this code, which is what makes it eligible for a small-business set-aside. The cap is set per NAICS, so the same company can be small in one code and not in another.

13 CFR 121.201, effective January 1, 2026. The SBA revises the table roughly once a year.

Top Contractors

Companies with the highest total award value under NAICS 336310, ranked by dollars won.

Ranked by total awards
CompanyTotal AwardsContracts
TECMOTIV (USA), INC.$23.1M19
CATERPILLAR INC$20.8M1
BAE SYSTEMS LAND & ARMAMENTS L.P.$19.8M1
HONEYWELL INTERNATIONAL INC.$8.8M2
HONEYWELL INTERNATIONAL INC. Phoenix AZ 85034 USA$8.2M1
HONEYWELL INTERNATIONAL INC.$8.2M1
EOS INC$5.5M7
LC INDUSTRIES INC$3.7M36
MARVIN LAND SYSTEMS, INC.$3.3M2
MANCON LLC$3.3M2

Top Agencies

Federal agencies directing the most contract spending toward NAICS 336310.

Department Of Defense1,759 awards$111.0M
DLA Land Warren8 awards$22.8M
DLA Land And Maritime115 awards$21.8M
Department Of Homeland Security44 awards$4.1M
Department Of State60 awards$3.0M
Al DLA Aviation At Huntsville1 award$2.5M
Department Of Defense (dod)6 awards$1.5M
Ut DLA Aviation At Ogden1 award$454K
DLA Aviation2 awards$82K
DLA Land And Maritime (albany)1 award$73K

Competition

How many companies historically bid on federal awards in NAICS 336310, from bidder counts reported on USAspending.

Crowded Field

Median above 5 bidders per reported award. · 125,188 reported awards

Median Bidders

111

Per reported award, all-time

Single-Bid Awards

8%

Share of reported awards with one bidder

10+ Bidder Awards

74%

Share of reported awards with 10+ bidders

Reported Awards

125,188

95% of 131,314 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
336310This Code
Motor Vehicle Gasoline Engine and Engine Parts Manufacturing
Crowded Field1118%
125,18895% of 131,314
33631NAICS Industry
Crowded Field11112%
162,44496% of 168,827
3363Industry Group
Motor Vehicle Parts Manufacturing
Moderate Competition325%
451,33389% of 504,695
336Subsector
Fewer Bidders238%
2,927,90480% of 3,665,512
33Sector
Manufacturing
Fewer Bidders244%
16,883,00469% of 24,369,785

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to Motor Vehicle Gasoline Engine and Engine Parts Manufacturing, by shared sector, subsector, and industry group.

Motor Vehicle Electrical and Electronic Equipment Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or rebuilding electric...
336320Same Industry GroupHigh Similarity

Motor Vehicle Steering and Suspension Components (except Spring) Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or rebuilding motor ve...
336330Same Industry GroupHigh Similarity

Motor Vehicle Brake System Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or rebuilding motor ve...
336340Same Industry GroupHigh Similarity

Motor Vehicle Transmission and Power Train Parts Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or rebuilding motor ve...
336350Same Industry GroupHigh Similarity

Motor Vehicle Seating and Interior Trim Manufacturing

This industry comprises establishments primarily engaged in manufacturing motor vehicle seating, sea...
336360Same Industry GroupHigh Similarity

Motor Vehicle Metal Stamping

This industry comprises establishments primarily engaged in manufacturing motor vehicle stampings, s...
336370Same Industry GroupHigh Similarity

Other Motor Vehicle Parts Manufacturing

This industry comprises establishments primarily engaged in manufacturing and/or rebuilding motor ve...
336390Same Industry GroupHigh Similarity

Automobile and Light Duty Motor Vehicle Manufacturing

This industry comprises establishments primarily engaged in (1) manufacturing complete automobiles a...
336110Same SubsectorMedium Similarity

Explore contracts across multiple NAICS codes Browse all NAICS Codes

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NAICS 336310 FAQ

Frequently Asked Questions

NAICS code 336310 covers Motor Vehicle Gasoline Engine and Engine Parts Manufacturing. This industry comprises establishments primarily engaged in (1) manufacturing and/or rebuilding motor vehicle gasoline engines and engine parts and/or (2) manufacturing and/or rebuilding carburetors, pistons, piston rings, and engine valves, whether or not for vehicular use. Illustrative Examples: Carburetors, all types, manufacturing Crankshaft assemblies, automotive and truck gasoline engine, manufacturing Cylinder heads, automotive and truck gasoline engine, manufacturing Fuel injection systems and parts, automotive and truck gasoline engine, manufacturing Gasoline engines for hybrid automotive vehicles manufacturing Pistons and piston rings manufacturing Manifolds (i.e., intake and exhaust), automotive and truck gasoline engine, manufacturing Pumps (e.g., fuel, oil, water), mechanical, automotive and truck gasoline engine (except power steering), manufacturing Timing gears and chains, automotive and truck gasoline engine, manufacturing Valves, engine, intake and exhaust, manufacturing Cross-References. Establishments primarily engaged in--

Recently Posted in Motor Vehicle Gasoline Engine and Engine Parts Manufacturing

NAICS: 336310
Awarded
DIBBS
FILTER ELEMENT, FLUID
Solicitation # SPE7L5-26-T-5670
Solicitation SPE7L5-26-T-5670 is a fixed-price request for the procurement of 128 fluid filter elements, identified by NSN 2910-99-248-3131 and J.C. Bamford Excavators Limited part number 320/A7120. Issued by the Department of Defense Land Supplier Operations Engines, the requirement specifies a need ship date of January 31, 2027, with delivery to the DLA Distribution DDSP New Cumberland facility in Pennsylvania. The contract mandates that inspection and acceptance occur at the destination in accordance with FAR 52.246-2. The contractor must adhere to strict packaging and marking standards, specifically MIL-STD-2073-1E for packaging and MIL-STD-129 for marking, while following DLA packaging requirements for palletization. Technical and quality standards are governed by the DLA Master List of Technical and Quality Requirements. Administrative requirements include the use of the Wide Area WorkFlow system for electronic invoicing and payment. Additionally, the solicitation incorporates various federal regulations, including DFARS 252.204-7012 for cybersecurity and DFARS 252.225-7001 regarding the Buy American and Balance of Payments Program.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
Awarded
DIBBS
HOUSING, OIL PUMP AS
Solicitation # SPE7L1-26-T-170G
This contract solicitation is for the procurement of a housing assembly for an oil pump used in non-aircraft engines, identified by NSN/Part Number 2990-01-259-0589. The total quantity requested is four units, with a delivery timeline of 154 days after the date of the order. The manufacturing process involves metal casting, which necessitates tooling, and suppliers requiring information about tooling, materials, or sourcing are directed to specific assistance teams within the Defense Logistics Agency's aviation or maritime supply chains. The contract incorporates specific technical and quality requirements as defined by the Defense Logistics Agency's master list, with compliance governed by the revision in effect at the solicitation or award date. Packaging requirements consistent with DLA procurement standards also apply, and government identification markings must be removed from any non-accepted supplies. The solicitation is issued by the Land Supply Chain office of the Department of Defense, with Hill Air Force Base identified as the place of performance. The primary point of contact for this procurement is Brice Royer, who can be reached via email or phone for further inquiries.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
Awarded
DIBBS
BRACKET, ENGINE MOUNT
Solicitation # SPE7L3-26-T-241H
Solicitation SPE7L3-26-T-241H is a request for quotations issued by the Department of Defense, specifically DLA Land and Maritime, for the procurement of 85 engine mount brackets (NSN 2510-01-589-5312). This procurement is set aside for certified Women-Owned Small Business (WOSB) concerns. The award is based on price, with quotes required to be submitted via DIBBS by September 21, 2026. Delivery is specified as 323 days after the order is received, with inspection and acceptance occurring at the origin. The contract mandates strict quality and technical compliance, requiring the manufacturer's inspection system to meet ISO 9001:2015 or an equivalent standard. A critical requirement includes First Article Testing (FAT) for three units, with the resulting report due within 90 calendar days of the contract date. Technical data for this item is subject to ITAR or EAR export controls, requiring contractors to have approved US/Canada Joint Certification Program certification. Packaging must adhere to DLA RP001 and MIL-STD-129 marking standards. Invoicing and payment must be processed electronically through the Wide Area WorkFlow (WAWF) system.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
Awarded
DIBBS
RING SET, PISTON
Solicitation # SPE7L027F0356
Defense Logistics Agency award SPE7L027F0356 is a delivery order issued on October 14, 2026, to Janel Industries Inc under the broader indefinite delivery contract SPE7L326D61TJ. This specific order is valued at 182,208.00 dollars for the procurement of 5,694 piston ring sets, identified by NSN 2815014126760. The delivery for these items is required by March 15, 2027. The overarching contract, established on July 14, 2026, is a unilateral simplified acquisition threshold contract with a maximum value of 350,000.00 dollars and a guaranteed minimum quantity of 222 units. This primary agreement carries a one-year period of performance and serves as the vehicle for the specific delivery order issued by DLA Weapons Support.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
Awarded
DIBBS
CAMSHAFT, ENGINE
Solicitation # SPE7LX-20-R-0014
Delivery order SPE7L127FA451 was awarded to Cummins Inc on October 14, 2026, by the Defense Logistics Agency for the procurement of one engine camshaft, identified by NSN 2815014412402. The total price for this specific order is 498.15 dollars, with the item designated for shipment to Hill AFB, UT. This order was issued under the broader requirements contract SPE7LX21D0007, which was originally awarded to Cummins Inc by DLA Land and Maritime on November 12, 2020. The overarching agreement is a fixed-price contract with Economic Price Adjustments covering 9,304 National Stock Numbers and has a potential 10-year duration ending November 11, 2032, with an estimated total value of 248,691,809.00 dollars.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
New
DIBBS
O-RING
Solicitation # SPE7L1-27-T-1481
Solicitation SPE7L1-27-T-1481 is a request for quotations issued by the DLA Weapons Support Land Supply Chain for the procurement of 507 O-rings, identified by NSN 5331-01-478-9901. The contract requires delivery within 127 days after order, with a need ship date of March 3, 2027, and a final required delivery date of March 9, 2027. Delivery is FOB Origin to the DLA Distribution San Joaquin facility in Tracy, California. Inspection and acceptance will occur at the destination per FAR 52.246-2. The items must be free of asbestos and adhere to strict quality and packaging standards. Specifically, the O-rings must be sealed in medium duty, waterproof, greaseproof, opaque bags according to MIL-DTL-117, Type II, Class C, Style 1 to prevent UV deterioration. Packaging and marking must comply with MIL-STD-2073-1E and MIL-STD-129, respectively. The items are designated as Type I shelf life with a non-extendable period of 180 months, requiring Special Marking Code 32. Administrative requirements include electronic invoicing via Wide Area WorkFlow and compliance with DFARS 252.225-7001 regarding the Buy American and Balance of Payments Program. The solicitation is under NAICS code 336310 and may be eligible for automated award. All quotes must be submitted through the DLA Internet Bid Board System. Additionally, the contractor must comply with DFARS 252.204-7012 for safeguarding covered defense information and provide Material Safety Data Sheets for any hazardous materials prior to the award.
DLA WEAPONS SUPPORT LAND SUPPLY CHAIN

POSTED

1 day ago

DEADLINE

in 11 days
View Details
NAICS: 336310
Awarded
DIBBS
PARTS KIT, ENGINE POPPET VALVE
Solicitation # SPE7L027F0358
Defense Logistics Agency award SPE7L027F0358 is a delivery order issued on October 14, 2026, to Artex Truck Center Inc for the procurement of Engine Poppet Valve Parts Kits under NSN 2815000741939. This specific order, valued at 7,546.80 dollars, consists of two contract line items with designated deliveries to DLA Distribution centers located in Albany, Georgia, and Barstow, California. This delivery order is executed under the broader Indefinite Delivery Contract SPE7L326D60KX, which was established on December 9, 2025, between DLA Land and Maritime and Artex Truck Center Inc. The overarching master contract has a maximum value of 250,000.00 dollars and a guaranteed minimum quantity of 170 kits, incorporating standard FAR and DFARS clauses regarding ordering procedures and limitations.
Defense Logistics Agency

POSTED

1 day ago

DEADLINE

N/A
View Details
NAICS: 336310
New
DIBBS
ACTUATOR, ELECTRO-MECHA
Solicitation # SPE7L5-27-T-0209
Solicitation SPE7L5-27-T-0209 is a request for quotations issued by the DLA Weapons Support Land Supplier Opns Engines for the procurement of two electro-mechanical linear actuators. The required items are designated as critical application items, specifically Governors America Corporation part number ADG151 under NSN 2920017063960. Delivery is expected within 161 days, with an original required delivery date of March 29, 2027, and a need ship date of April 6, 2027. Supplies are to be delivered to the DLA Distribution DDSP New Cumberland Facility in Pennsylvania, with inspection and acceptance occurring at the destination. The contract mandates strict adherence to MIL-STD-2073-1E for packaging and MIL-STD-129 for marking, alongside DLA packaging requirements RP001. Environmental and safety compliance is required, including a prohibition on Class I ozone-depleting chemicals and adherence to the Hazard Communication Standard for any hazardous materials. Administrative requirements include the use of the Wide Area Workflow system for invoicing and payment. Key regulatory clauses are incorporated, including DFARS 252.204-7012 for safeguarding covered defense information and DFARS 252.225-7001 regarding the Buy American and Balance of Payments Program.
DLA WEAPONS SUPPORT LAND SUPPLIER OPNS ENGINES

POSTED

2 days ago

DEADLINE

in 11 days
View Details
NAICS: 336310
New
DIBBS
O-RING
Solicitation # SPE7L1-27-T-1386
Solicitation SPE7L1-27-T-1386 is a fixed-price requirement issued by the DLA Weapons Support Land Supply Chain for the procurement of 50 O-rings, specifically Parker-Hannifin Corp part number P2-003-8904-9 (NSN 5331-01-693-8807). This is a Foreign Military Sales requirement for Australia, with delivery required within five days after order. The items are to be delivered FOB Origin, with both inspection and acceptance also occurring at the origin. Shipping involves a freight forwarder in Brisbane, California, for final delivery to the Joint Logistics Unit in Bandiana, Australia. The contract mandates strict adherence to technical and quality requirements, including source control drawings and DLA master list requirements RA001, RP001, RQ011, and RD003. Due to the risk of deterioration from ultraviolet rays, the O-rings must be sealed in medium-duty, waterproof, greaseproof, opaque bags per MIL-DTL-117, Type II, Class C, Style 1. General packaging and marking must comply with MIL-STD-2073-1E and MIL-STD-129. Administrative requirements include the use of the Wide Area WorkFlow system for invoicing and compliance with various FAR and DFARS clauses regarding cybersecurity, domestic sourcing, and small business representations.
DLA WEAPONS SUPPORT LAND SUPPLY CHAIN

POSTED

2 days ago

DEADLINE

in 11 days
View Details
NAICS: 336310
Awarded
DIBBS
COVER, ENGINE POPPET VALVE ROCKER ARM
Solicitation # SPE7LX27F1539
Defense Logistics Agency award SPE7LX27F1539 is a delivery order issued on October 13, 2026, to AM General LLC under the broader Indefinite Delivery Contract SPE7LX25D5008. This specific order, valued at 25,172.00 dollars, is for the procurement of engine poppet valve rocker arm covers, identified by NSN 2815011489533 and part number 5740151. The order is categorized under NAICS code 336310 and was set aside for a service-disabled veteran-owned small business. The procurement is managed by the DLA Weapons Support Strategic Acq Program Directorate and consists of multiple contract line items with scheduled deliveries occurring between July and October 2027. Supplies are to be shipped to DLA Distribution centers located in Albany, Georgia, and New Cumberland, Pennsylvania. This delivery order operates under the terms of the primary firm-fixed-price contract, which runs from January 10, 2025, through January 9, 2030, with a total maximum value of 2,805,077.10 dollars.
Defense Logistics Agency

POSTED

2 days ago

DEADLINE

N/A
View Details
NAICS: 336310
New
DIBBS
FLANGE, FUEL TANK
Solicitation # SPE7L5-27-T-0218
Solicitation SPE7L5-27-T-0218 is a fixed-price procurement issued by the DLA Weapons Support Land Supplier Opns Engines for 199 fuel tank flanges (NSN 2910-01-163-3248). The items must be manufactured using a metal casting process requiring specific tooling and must adhere to technical and quality requirements outlined in the DLA Master List. Blue Group LLC is identified as the authorized source in place of Cast-Rite. Delivery is required within 204 days, with a need ship date of May 19, 2027, and a final required delivery date of October 31, 2027. Shipping is FOB Origin, with both inspection and acceptance occurring at the origin. The contract mandates strict quality and security compliance, including a CMMC Level 2 Self-Assessment and adherence to SAE AS9003 or ISO 9001 standards. Sampling must follow MIL-STD-1916 or ASQ H1331, with zero non-conformances required for acceptance. Packaging must comply with ASTM D3951 and MIL-STD-129, with palletization following RP001. Environmental restrictions prohibit the use of Class I Ozone Depleting Chemicals. Administrative requirements include electronic invoicing via the Wide Area Workflow system and compliance with various FAR and DFARS clauses regarding trafficking in persons, hazardous materials, and the safeguarding of covered defense information.
DLA WEAPONS SUPPORT LAND SUPPLIER OPNS ENGINES

POSTED

2 days ago

DEADLINE

in 11 days
View Details
NAICS: 336310
New
DIBBS
TANK, FUEL, ENGINE
Solicitation # SPE7L3-27-U-0016
Solicitation SPE7L3-27-U-0016 is a total small business set-aside for the procurement of engine fuel tanks, specifically manufacturer part number A03-37346-141 from Daimler Truck North America LLC, identified by NSN 2910015755229. The Department of Defense, through the DLA Weapons Support Land Supplier Operations Vehicle Support, is seeking an estimated quantity of 10 units. The award will be a unilateral Simplified Indefinite-Delivery Contract based on price and the offeror's ability to conform to the terms and conditions of the request for quote. Key performance requirements include a delivery timeline of 52 days after the order is received. Packaging must adhere to ASTM D3951 and RP001 DLA Packaging Requirements, with marking and labeling following MIL-STD-129. Inspection and acceptance will occur at the destination. Payment and invoicing must be processed electronically via the Wide Area WorkFlow system. The contract incorporates various DFARS and FAR clauses, including strict mandates on cybersecurity reporting, the Buy American Act, and prohibitions on the use of covered defense telecommunications equipment.
DLA WEAPONS SUPPORT LAND SUPPLIER OPNS VEHICLE SPT

POSTED

2 days ago

DEADLINE

in 13 days
View Details

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