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AVIATION / Landing gear / REVIEWED 2026-09-11

C01Main landing gear

Support the aircraft and absorb landing loads.

Manufacturers & products

Landing gear is a program-specific structural assembly. Supplier capability and published examples below distinguish 737 portfolio involvement from other aircraft designs.

Program applicability is stated for each listing. 737NG, 737 MAX, and other aircraft examples are distinct configurations; listed products are not automatically interchangeable or approved for installation.

manufacturer

Collins Aerospace

Integrated landing gear and structures

Makes gear structures and integrated systems; its portfolio includes 737 families. [1][2]

Program / application

737 family landing-systems portfolio; exact assembly scope unverified [1][2]

Custom program inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications
  • Portfolio listing combines gear, wheels and brakes; request assembly-level effectivity.
View product & inquiry route
manufacturer

Safran Landing Systems

Airbus A320 main landing gear

Designs and supplies A320-family main landing gear. [3]

Program / application

A320 family; not a 737 main gear [3]

Custom program inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications
  • Dimensions below are main-gear product-page values, not a drawing tolerance or installation interchangeability claim.
View product & inquiry route
manufacturer

Liebherr-Aerospace

A220 landing gear

Supplies A220 landing gear under its Airbus programs. [4]

Program / application

A220; not a 737 gear [4]

Custom program inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications
  • The consulted program announcement does not provide gear dimensions or load ratings.
View product & inquiry route
manufacturer

Héroux-Devtek

Landing gear design and manufacture

Develops, manufactures and supports aircraft landing gear and actuation components. [5]

Program / application

General capability; 737 applicability unverified [5]

Custom program inquiry

Suggested route: manufacturer program/product inquiry or approved aftermarket support; confirm exact aircraft and part-number effectivity.

Product scope & qualifications
  • General manufacturer capability; no 737 main-gear installation is asserted.
View product & inquiry route

What remains unverified

  • No public main-gear load/stroke/mass specification for the illustrated 737NG configuration was established.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

  • Approved aircraft configuration

    Gear structures are designed around airframe loads, attachment points and qualification evidence.

  • Landing and ground loads · N / kg

    Compare the prescribed load cases per gear assembly rather than aircraft gross mass alone.

  • Energy absorption and stroke · mm / J

    Shock-strut travel and damping must be evaluated at the specified landing condition.

  • Stowage envelope · mm

    Retraction geometry, wheel-well space and door interfaces constrain the design.

  • Assembly mass · kg

    Clarify inclusion of wheels, brakes, actuators, fluids and dressings.

  • Fatigue and corrosion

    Compare approved life substantiation and environmental protection.

  • Wheel and actuation interfaces

    Tire, brake, steering and actuator interfaces belong to a matched installation.

  • Manufacturing and support provenance

    Track design authority, production scope and authorized repair records.

Selection & integration notes
  • Collins lists 737 Classic, NG and MAX in its landing-systems portfolio; that broad list does not allocate every main-gear component.
Supporting references [1]

Published product examples

2 REFERENCES

Specifications belong to the named product and configuration.

A320 main landing gearSafran Landing Systems
Height
3 m[3]Safran main-gear product-page value.
Width
1 m[3]Main gear.
Weight
800 kg[3]Main gear; included equipment not further specified.

Other-airframe example.

Example sources [3]
A220 landing gear referenceLiebherr-Aerospace

Published supplier relationship; main-gear performance figures are not disclosed in this source.

Example sources [4]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

  1. Landing systems brochure Collins Aerospace · Published 2022-05

    Landing-system portfolio, 737 family program list and manufacturing sites.

    Accessed 2026-09-10
  2. Collins Aerospace on the Boeing 737 MAX Collins Aerospace · Published 2023

    MAX landing systems, ice detection and evacuation portfolio affiliation.

    Accessed 2026-09-10
  3. Airbus A320 landing gear Safran · Publication date not stated

    A320 main/nose gear supply; main gear dimensions and weight.

    Accessed 2026-09-10
  4. Liebherr and Airbus landing gear collaboration Liebherr · Publication date not stated

    A220 landing gears and A350 nose gear supplier relationship.

    Accessed 2026-09-10
  5. Héroux-Devtek landing gear solutions Héroux-Devtek · Publication date not stated

    Landing gear design, manufacture and support capability.

    Accessed 2026-09-10