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B737 Cargo Conversion



With more than 350 cargo conversions-including 120+ Boeing 737 Classics, Pemco is the world’s leading provider of narrow body aircraft cargo conversions. Over the past four decades, PEMCO has brought 26 different cargo platforms to market. With five decades of tested and proven aircraft support, PEMCO is also an industry leader in maintenance, repair and overhaul (MRO) for wide and narrow body aircraft from around the world.


The PEMCO conversion is the world’s only 737 cargo conversion designed, built and supported with genuine Boeing data obtained under a full license agreement to out-perform and out-last the competition.

• The PEMCO conversion is the world’s only 737 cargo program to be chosen by Boeing for its own airplanes (Boeing Capital).
• We have earned world-wide market and regulatory acceptance with 50+ operators, 25+ countries and 20+ agencies.
• PEMCO has converted a market leading 120+ 737 300/400 freighters.
• We offer a selection of four 737-300 & 400 variants to serve all needs (F, QC, Combi).
• PEMCO is the most experienced narrow body conversion company in the world with more than 45 years of experience and over 350 conversions across 26 models. (More than any other conversion provider except Boeing).
• Our conversions provide the highest independently-certified retained asset values, leading to end-of-service equity gains.
• 737-300 and 400 freighters have the lowest unit and trip COCs of any narrow body freighter between 25,000 and 50,000 pounds or 11,340 and 22,680 kilograms per trip.
• PEMCO conversions provide the most structural payload (up to 48,000 pounds / 21,772 kilograms ) and total useable volume (up to 5,973 cubic feet / 161 cubic meters).
• We maintain conversion sites in U.S., Canada, Central America and Asia (HAECO Group).
• The optimized CG of our 11-position 737-400 freighter yields the highest possible usable payload and retains maximum best-in-class fuel efficiency for unbeatable range and operating economics.
• Operators maintain the lowest cost of ownership due to robustness of design, quality of craftsmanship and strength of warranty and tech support.
• Experience matters. Over 2 million hours on 120+ 737-300/400. AD Free for nearly two decades.

PEMCO 737-300       PEMCO 737-300


PEMCO's 737-300 and -400 freighter, QC and combi products are the world’s only designed, built, certified and supported utilizing Boeing design data to ensure the reliability and effectiveness of the cargo modification. Boeing is the world's largest aerospace company.

OMA is an Italy-based aerospace company and tier one Airbus/ Boeing/Lockheed/PEMCO supplier of Actuation Systems and Integrated Aerostructures.

HAECO subsidiaries, STAECO/Jinan & TAECO/Xiamen have performed 50+ PEMCO 737-300/400 PTF installations in the highly successful partnership with PEMCO.

With more than 50 years of experience, COOPESA R.L. is an employee-owned company providing maintenance, repair, and overhaul to narrowbody aircraft.

Kelowna Flightcraft is an award winning AMO and operates two full service MRO facilities in Kelowna, BC and Hamilton, ON Canada.

United Technologies is one of the world’s largest and best-known global aerospace suppliers in the industry. UTAS provides many of PEMCO’s smoke detection and suppression systems.

Ancra is a global leader in design and manufacture of on-board cargo loading systems (CLS), and a primary supplier of CLS for PEMCO’s 737-300 and 400 conversion products.


Two million flight hours with safe, incident-free operation says it all. That’s our track record for cargo door manufacturing. It’s the industry’s best. And it can take your bottom line to new heights with lower unit and trip costs as well as a higher retained aircraft value.

To give you the best results, we partner with the best. For more than a decade, Officine Meccaniche Aeronautiche (OMA) in Foligno, Italy, has been our trusted OEM partner for cargo door manufacturing. And we’re in good company because they’re also a trusted OEM partner to Agusta-Westland, Lockheed Martin, Airbus and many other top-tier companies worldwide.

OMA delivers unmatched quality and reliability, from dedicated jigs for professional assembly, to meeting the highest certification standards, including full design, stress, and qualification capabilities.

In addition to OMA’s world-class manufacturing, what really sets our cargo doors apart is PEMCO’s exclusive access to genuine Boeing data, which results in B737 conversions with unmatched capability and reliability. Without this data, other conversion companies must rely on unproven reverse engineering. So why settle for anything less than PEMCO? Give up the guesswork and rest assured your aircraft will perform with flying colors.



With more than 50 years of aeronautical engineering experience, PEMCO is the standard for the conversion industry from in-depth knowledge to superior design and construction, our cargo conversions are second to none

• PEMCO conversions are the world’s only 737 cargo conversions designed, built and supported with genuine Boeing data obtained under a full license agreement. ALL others are built through unsupported reverse engineering.
• PEMCO's Boeing data-based fuselage and floor beam reinforcement allows industry leading initial inspection thresholds and maximized main deck and pit volume for unsurpassed revenue generation.
• PEMCO's design expertise leads to optimized CG and best in class fuel burn and range.
• Multiple configurations are available to meet any needs including; 88" x 125" (223.5 cm x 317.5 cm), 88 x 108" (223.5 cm x 274.32 cm), 96" x 125" (243.84 cm x 317.5 cm), LD-9, AEH, LD-3 or Demi. PEMCO also offers special mission configurations accommodating military pallets, horse stalls, and other unique freight arrangements.
• Multiple configurations are available for the last pallet position: 88" x 125" (223.5 cm x 317.5 cm), AEH, LD-3 or Demi.
• Configuration available with jet engine hauling capability up to 11,000 lbs for a single 96" x 125" (243.84 cm x 317.5 cm) longitudinal pallet.
• A Quick Change version is available with more than 11 different approved LOPAs.
• Only PEMCO’s freighters are ruggedized and weatherized for harsh climate operations.
• World's only Combi configuration with Class C cargo compartment, multiple CLS configurations and optional rear air-stairs for increased airfield utility.
• Plenty of clearance between cargo door and engine nacelle.
• PEMCO’s modification integrates a “B” system source of hydraulic door actuation resulting in the most reliable system and elimination of costly independent pump overhaul.
• PEMCO’s flexible design provides the ability to engineer specialized solutions such as horse haulers or other non-standard freight.
• Main cargo door is manufactured by a world class OEM leading to unsurpassed quality and technical tolerances.
• Industry leading 60 knots wind capability
• Over 120 in service

To read more, download the pdf below
yellow square PEMCO Brochure - B737 Cargo Conversion
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