Product type

Fuel-System Harness

Overview

Fuel-system harnesses connect controllers with pump modules, injectors, pressure and temperature sensors, metering valves and related devices. Custom options include tank-module leads, pump branches, gasoline or diesel injector looms, sensor pigtails and repair assemblies. These are electrical components, not fuel hoses or pressure pipes.

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Fuel-System Harness - Automotive
01 / 16
Fuel Pressure Sensor 3-Wire Plug Short Pigtail
01
Fuel Pressure Sensor 3-Wire Plug Short Pigtail
Fuel Pump 4-Wire Plug Pigtail
02
Fuel Pump 4-Wire Plug Pigtail888-601
Fuel Pump Dual Rectangular Plug Corrugated-Conduit Harness
03
Fuel Pump Dual Rectangular Plug Corrugated-Conduit HarnessPN3030
Fuel Injector Rail Multi-Plug Harness
04
Fuel Injector Rail Multi-Plug Harness06L971627K
T-Branch Multi-Plug Direct-Injection Fuel Injector Harness
05
T-Branch Multi-Plug Direct-Injection Fuel Injector Harness
Fuel Injector Mounting Rail & 4-Plug Harness
06
Fuel Injector Mounting Rail & 4-Plug Harness12621096
Fuel Injector Rail & Main Plug Harness
07
Fuel Injector Rail & Main Plug Harness12621095
MAP Manifold Pressure Sensor 3-Wire Plug Pigtail
08
MAP Manifold Pressure Sensor 3-Wire Plug Pigtail
Fuel Pump Multi-Wire Plug & Terminals Set
09
Fuel Pump Multi-Wire Plug & Terminals SetFA10003
Fuel Injector Clip-Mounted Rail Harness
10
Fuel Injector Clip-Mounted Rail Harness06L971627K
Fuel Injector Dual Rail Harness Set
11
Fuel Injector Dual Rail Harness Set68087837AF
Fuel Injector 4-Plug & Main Plug Harness
12
Fuel Injector 4-Plug & Main Plug Harness12604950
Fuel Injector Rail & Large Main Plug Branch Harness
13
Fuel Injector Rail & Large Main Plug Branch Harness
Fuel Pressure Sensor 3-Pin Color-Coded Pigtail
14
Fuel Pressure Sensor 3-Pin Color-Coded Pigtail
Fuel Sensor Plug Pigtail
15
Fuel Sensor Plug Pigtail13577394／13577379
Fuel-Rail Pressure Sensor 3-Wire Plug Pigtail
16
Fuel-Rail Pressure Sensor 3-Wire Plug Pigtail
POWER / INJECTION / FEEDBACK

Map the electrical side of fuel delivery

One engine can contain several fuel-related sub-harnesses. The useful starting point is not a universal connector list but a circuit map: which device is powered, measured or switched, where it sits, and what the engine controller expects at that interface.

Fuel-System Harness fuel-rail context
01

CATEGORY BOUNDARY

Electrical assemblies, not fuel lines

Electrical assemblies, not fuel lines

A fuel-system wiring assembly can connect an in-tank pump and level sender, an external pump or filter-module device, injector banks, rail-pressure sensors, fuel-temperature sensors and metering valves. The fuel rail, hoses and pressure seals remain mechanical fluid components. This distinction matters at a quotation stage: electrical continuity and connector fit do not certify pressure containment or fluid tightness. The photographed tank outlet is installation context, not a wiring product.

Define the assembly boundary

Mark the controller-side and device-side breakpoints, branch count and service disconnects.

Keep claims separate

Electrical testing does not qualify the adjacent fuel plumbing.

02

PUMP & TANK MODULES

Pump power and sender signals follow different paths

Pump power and sender signals follow different paths

A tank module may combine an electric pump, level sender and sometimes additional sensing or control electronics in one serviceable package. Pump feed, return and protection are selected against operating and start-up current, run length, voltage drop, connector temperature and controller strategy. A sender or low-level sensor needs its specified reference, ground and signal route; do not casually share it with a noisy motor return. Confirm whether the customer needs an external connector lead, a tank-side assembly or both. The cutaway photograph shows a tank module and wiring route as context, not a specified finished assembly.

Calculate the complete loop

Supply and return resistance both affect the pump's available voltage.

Separate measurement returns

Level and pressure readings follow the controller's reference scheme.

03

GASOLINE INJECTION

Injector branches preserve cylinder order and driver intent

Injector branches preserve cylinder order and driver intent

Port-injection and direct-injection systems may use different injectors, drivers, supply arrangements and packaging. A two-pin shape alone cannot identify the ECU output, shared feed, return path or waveform. The harness drawing should specify cylinder assignment, cavity view, terminal system, branch station and orientation at each injector. If a replacement is developed from a sample, wire colors and physical reach help, but controller pin data and the actual engine variant settle the electrical identity. The photo shows an injector's electrical interface rather than a finished Super Smile harness.

Index every cylinder

A correct-looking branch can still drive the wrong injector if cylinders are crossed.

Confirm the driver

Do not infer voltage, polarity or pulse behavior from the plug shell.

04

DIESEL COMMON RAIL

Common-rail branches are controller-specific

Common-rail branches are controller-specific

Diesel common-rail injector circuits, metering devices and rail sensing sit near high-pressure hardware, heat and vibration. Their electrical driver strategy is not interchangeable with a gasoline injector lead. Depending on the engine, injector actuation may involve voltages and switching behavior beyond ordinary low-voltage sensor wiring; exact limits come from the controller and component documentation. Route electrical branches clear of service access to high-pressure lines, keep the intended shielding or separation, and protect branch exits from engine movement and abrasion. The photographed injector is an example of the device, not a compatible part claim.

Protect service access

Do not bind the electrical loom into a high-pressure pipe service route.

Follow exact control data

Injector, rail and metering connections require the approved pin and driver map.

05

SENSING & FEEDBACK

Pressure and temperature signals need stable references

Pressure and temperature signals need stable references

A rail-pressure sensor, low-pressure sensor, fuel-temperature sensor or tank-level sender may use analogue or other controller-defined outputs. Wire count and connector keying are only the beginning: reference voltage, sensor ground, signal type, fault detection and permissible noise belong in the circuit table. Keep sensitive measurement routes away from pumps and switching injector branches where the controller requires it. The pressure gauge in the photo provides a fuel-system context; it is mechanical and should not be mistaken for an electrical pressure transducer supplied with this harness.

Map the signal, not just pins

The same cavity count can conceal different reference and output schemes.

Control noise paths

Routing and return separation follow controller requirements.

06

MATERIALS & PROTECTION

Select materials for the actual fuel-exposure zone

Select materials for the actual fuel-exposure zone

Engine heat, splash, fuel vapor, diesel mist, cleaning fluids, abrasion and vibration do not create one universal material specification. Choose conductor section, insulation, sleeve, tape, seals, cavity plugs and backshells for the installed zone and the exact mating connector system. Fuel-resistant claims belong to named material grades and test conditions; an oil-resistant sleeve or a sealed-looking shell is not proof of immersion suitability. Routing, clips, bend relief and distance from hot or sharp parts remain as important as the material datasheet. The pictured pump connector illustrates an electrical interface only.

Name the exposure

Splash, vapor, mist and immersion are different selection cases.

Check the full seal system

Housing, terminal, wire diameter, wire seal and unused-cavity closure must match.

07

SOLUTIONS & RELEASE

From an old sample to a controlled repeatable assembly

From an old sample to a controlled repeatable assembly

We can scope a complete engine-side fuel branch, a pump-module lead, an injector bank, a sensor pigtail or a replacement service loom. Start with a drawing or sample, then reconcile connector part numbers, cavity view, circuit identity, load, branch dimensions, fasteners and exposure zones against the actual vehicle and controller. A first article checks mating, routing, terminal seating, circuit map and agreed visual points. Production inspection may include continuity and short checks, but functional powered tests, pressure or ingress tests, thermal cycling and chemical resistance need separate procedures, samples and acceptance limits. The service photograph illustrates access constraints, not a company test record.

Freeze a first article

Approved changes update drawing, BOM and test fixture together.

Request evidence by test

A continuity pass is not a claim of vehicle-level or fluid-system validation.

Fuel-System Harness Questions

Is a fuel-system harness the same as a fuel line?

No. The harness carries electrical power and signals to pumps, injectors, valves and sensors. Hoses, rails and pipes carry fuel and require separate fluid-system engineering and verification.

Can a connector that fits an injector be used directly?

No. Confirm the injector and controller part numbers, cavity view, driver strategy, circuit assignment, terminal system and installed environment. A shared shell shape does not prove electrical compatibility.

Does a sealed connector make the whole harness fuel-resistant?

No. Fuel exposure must be defined by liquid, vapor or mist, duration and temperature. Wire insulation, seals, protection and the mated connector all need suitable material evidence and an agreed test if a resistance claim is required.

Can you make a replacement from a used vehicle sample?

A sample helps locate connectors and branches, but repairs, heat damage, hidden wire grades and different engine variants can mislead. Match it to the vehicle, controller and pin documentation before approving a first article.

What information is needed to quote a fuel-system harness?

Please send vehicle and engine model, ECU family, pump/injector/sensor references, pin and circuit table, mating connector details, system voltage and loads, route dimensions, exposure zones, sample or drawing, quantity and requested inspection.

Image sources and licenses

PART NUMBER / INTERFACE / MATERIAL

Models, Part Numbers & Sourcing

Find a cable model or material part number, then send it for a custom replacement or original-part sourcing review.

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58 references · Search by brand or part number

Cable & Harness Models

Manufacturer-identified finished assemblies for this application.

  • American Autowire

    40019

    Fuel Tank Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    36249

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    36237

    Rear Body License Plate And Fuel Tank Extension

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    35888

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    01040

    Fuel Tank Lead Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38240

    Fuel Tank Wire Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    FB03899

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CE76996

    Fuel Tank Lead Wire (CLEARANCE)

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    510359

    1973-79 Ford Truck Classic Update: Dual Fuel Tank Harness Add-On Kit

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CH38221

    Fuel Tank Extension Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CH31934

    Fuel Tank Extension

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60511

    Ford 1986 – 1995 5.0L Fuel Injection Wiring Harness Extra Length

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60510

    Ford 1986 – 1995 5.0L Fuel Injection Wiring Harness – Std. Length

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    50102

    Fuel Pump Relay Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    30131

    Weatherproof Fuel Pump Relay Kit

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    27715

    Fuel Tank Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    23570

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    01635

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CE64439

    Fuel Tank Lead Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38241

    Fuel Tank Wire Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CG85044

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CH48402

    Fuel Tank Extension Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    39718

    Fuel Tank Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38244

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    01630

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CG70427

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    39357

    Fuel Tank Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38242

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    01625

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    PL55125

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38243

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    36272

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CG97500

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38069

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    11910

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    40669

    Fuel Tank Sender Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    37652

    Fuel Tank Wire

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    28540

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    28535

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    36269

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    FB99289

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CA21772

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CA01600

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CH01447

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CA97607

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CA71184

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    28495

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    28480

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    NV38240

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    CA48401

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    28945

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

  • American Autowire

    38416

    Fuel Tank Sender Harness

    Custom compatible replacements · Original-parts sourcing

Connector & Material Part Numbers

Category-specific material references; the final BOM follows the approved configuration.

  • Painless Performance

    70921

    PowerBraid Fuel Injection Harness Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60135

    Multec 2 Injector Connector – Single Connector Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60134

    EV6 Injector Connector – Single Connector Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60133

    EV1 Injector Connector & Terminal – Single Connector Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60131

    EV6/USCar Injector Connector Kit

    Custom compatible replacements · Original-parts sourcing

  • Painless Performance

    60130

    EV1/Bosch Style Injector Connector Kit

    Custom compatible replacements · Original-parts sourcing

Selection & Project Review

01 Application Boundary

Fuel delivery architectures differ across port-injected gasoline, gasoline direct injection and diesel common rail. A matching connector body does not establish the correct pin map, injector driver, pump current, sensor reference or environmental rating. Define each circuit and its installed zone before choosing wire, terminals, sealing and branch protection.

02 Project Inputs

Send vehicle and engine identity, controller family, system voltage, pump and injector part numbers, mating connectors and cavity views, circuit and pin tables, sensor outputs, route dimensions, clips, heat and fuel exposure, sample or drawing, quantity and agreed inspection requirements.

03 Release Records

Approved inputs become controlled drawings, a pin and circuit map, BOM, branch datums, termination and protection instructions, labels and inspection criteria. A first article is reviewed for mating, reach, routing and electrical identity before repeat build; powered function, ingress, thermal and chemical tests require separately agreed methods and limits.

04 Interface Review

Confirm the exact mating interface, pin map, dimensions and installation orientation.

05 Sample Acceptance

Agree the sample configuration and electrical, mechanical or environmental checks required by the project.

06 Change Control

Record changes to materials, drawings and process instructions before repeat manufacture.

Send the part number, drawing or sample to confirm the replacement configuration and sourcing plan.

PROJECT REVIEW / CUSTOM MANUFACTURING

Custom Wire Harness Manufacturing in China

Custom wire harness manufacturing from our China factory, with OEM/ODM project support.

A sample, clear connector photos or a description of the equipment and required quantity is enough to start a review.

Discuss Custom Manufacturing & Sourcing

Start with a part number, drawing, sample or equipment requirement.

Information for an accurate quotation

When available, include drawings and BOM, connector and mating part numbers, pinout, wire length and gauge, branch layout, quantity and required tests. Materials, inspection scope and delivery are confirmed for each project.