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AVIATION / Propulsion & fuel / REVIEWED 2026-09-11

B05Fuel tanks & delivery

Store, measure, and deliver fuel.

Manufacturers & products

Fuel tanks, transfer and boost pumps, quantity sensing, venting and inerting form an integrated aircraft system. The companies below offer relevant equipment; this research does not establish the exact 737 tank bill of materials.

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

Eaton Aerospace

Fuel systems and equipment

Offers aircraft fuel distribution, gauging, venting, inerting and refueling products. [1]

Program / application

General capability; 737 applicability unverified [1]

Manufacturer inquiry

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

Product scope & qualifications

Exact 737 series and part-number effectivity are unverified in this source.

View product & inquiry route

manufacturer

Parker Aerospace

Fuel pumps and management equipment

Offers fuel boost and transfer pumps plus fuel-system integration; its published overview identifies pump manufacturing in Elyria. [2]

Program / application

Aircraft fuel capability; exact 737 product unverified [2]

Published manufacturing site: Elyria, Ohio, USA

Manufacturer inquiry

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

Product scope & qualifications

The named production location does not establish the origin of an individual installed pump.

View product & inquiry route

manufacturer

Crane Aerospace & Electronics

Fuel flow transmitters and pumps

Manufactures positive-displacement and centrifugal pumps and true mass fuel-flow transmitters through its fluid-management businesses. [3]

Program / application

General capability; 737 applicability unverified [3]

Manufacturer inquiry

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

Product scope & qualifications

The published accuracy is a technology-family statement; select the exact calibrated transmitter before comparing.

View product & inquiry route

manufacturer

Safran Aerosystems

Fuel distribution and management

Offers engine/APU feed, transfer and boost pumps with integrated fuel-management capability. [4]

Program / application

General capability; 737 applicability unverified [4]

Manufacturer inquiry

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

Product scope & qualifications

The public page does not identify a 737 part number.

View product & inquiry route

What remains unverified

Public pages do not establish a complete 737NG fuel-system supplier allocation.
Comparable pump curves, tank sensor accuracy and installation drawings require manufacturer documentation.

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

Flow at required pressure · kg/h / lb/h
Compare delivered flow with inlet conditions, altitude, temperature and pressure rise stated.
Cavitation and low-fuel operation
The inlet environment and tank geometry determine whether a pump remains effective.
Electrical input and transients · V / Hz / W
Match voltage, frequency, start demand, power and control architecture.
Fuel compatibility
Ask for the approved fuel specification and elastomer/material compatibility.
Quantity and flow accuracy · % / kg
Separate tank mass measurement from engine fuel-flow measurement and state the calibration range.
Ignition protection and inerting
Confirm the system-level fuel tank protection functions and aircraft approval.
Tank and line interfaces
Ports, canisters, check valves and sensor positions are airframe-specific.
Redundancy and support
Compare failure isolation, approved component effectivity and service network.

Selection & integration notes

Manufacturer family ranges below illustrate capability; they are not the operating range of a single pump.
Quantity, flow and pump performance are different metrics and should remain separate in the interface.

Published product examples

3 REFERENCES

Specifications belong to the named product and configuration.

Parker aircraft boost / transfer pump familyParker Aerospace

A supplier capability example. No specific part number or pump curve is provided by the consulted overview.

Example sources [2]

Crane fuel flow transmitter technologyCrane Aerospace & Electronics

Accuracy: ±0.5% of flow point[3]Engine cruise flow range; family-level claim, no specific model identified.

Not an accuracy guarantee for every flow rate, aircraft or transmitter.

Example sources [3]

Safran fuel pump portfolioSafran Aerosystems

Published flow capability: 150–100,000 lb/h (PPH)[4]Across multiple pump designs, not one pump’s adjustment range; pressure conditions unpublished.

Use individual pump curves for any real comparison.

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.

Aerospace fuel systems Eaton · Publication date not stated
Fuel distribution, gauging, venting, inerting and refueling capability.
Accessed 2026-09-10
Fuel systems Parker Aerospace · Publication date not stated
Fuel pump and management capability; Elyria fuel pump manufacturing.
Accessed 2026-09-10
Fluid management Crane Aerospace & Electronics · Publication date not stated
Fuel pump technology and fuel-flow transmitter accuracy at cruise flow.
Accessed 2026-09-10
Fuel distribution and management systems Safran · Publication date not stated
Fuel subsystem roles and published pump portfolio flow range.
Accessed 2026-09-10