Genuine Delphi 7185-900W 12V Fuel Shutoff Solenoid – 7167-620A

Description

Genuine Delphi 7185-900W 12V Fuel Shutoff Solenoid

This is a genuine Delphi fuel shutoff solenoid for many CAV, Lucas, and Delphi rotary diesel injection pumps. The current Delphi service part number is 7185-900W, replacing the older 7167-620A solenoid used on many DPA, DPS, DPC, and select DP200 pump applications.

This is the genuine Delphi part shown in the product photos, not an unmarked generic replacement. It is commonly used on injection pumps installed on Ford and New Holland tractors, John Deere equipment, Case and Case IH machines, Perkins-powered equipment, industrial engines, backhoes, skid steers, and other diesel applications.

Voltage: 12 volts. Do not install this solenoid on a 24-volt electrical system.

Product Specifications

• Manufacturer: Genuine Delphi
• Delphi part number: 7185-900W
• Previous CAV / Lucas number: 7167-620A
• Voltage: 12V DC
• Operation: Energized to run
• Pump mounting thread: M14 x 1.5
• Hex size: Approximately 24mm
• Electrical connection: Single stud-and-nut terminal
• Ground: Through the solenoid body and injection pump
• Pump families: Many DPA, DPS, DPC, and select DP200 pumps
• Condition: New
• Sold as: One solenoid

What Does the Fuel Shutoff Solenoid Do?

This solenoid controls fuel flow inside the injection pump when the ignition switch is turned on or off.

With the key switched on, the solenoid receives 12 volts and retracts its internal plunger, allowing fuel to flow through the pump. When the key is switched off, power is removed and the plunger closes the fuel passage, stopping the engine.

Because this is an energized-to-run solenoid, the engine may crank normally but fail to start if the solenoid does not receive power or if the internal coil or plunger has failed.

Common Signs of a Bad Fuel Shutoff Solenoid

A failed solenoid or a problem in its electrical circuit can cause symptoms including:

• Engine cranks but will not start
• No fuel reaching the injector lines
• Engine starts only after the solenoid is manually bypassed
• Engine shuts down unexpectedly while operating
• Intermittent starting or stalling when the machine is hot
• No click from the injection pump when the key is switched on
• Engine continues running after the ignition is switched off
• Damaged, loose, or corroded electrical terminal on the old solenoid
• Fuel leaking around the solenoid body or sealing area

These symptoms do not automatically mean the solenoid itself is defective. A bad ignition switch, broken wire, weak connection, blown fuse, poor pump ground, or low system voltage can produce similar problems.

Quick Checks Before Ordering a New Solenoid

1. Confirm the machine has a 12-volt electrical system. This solenoid is not intended for 24-volt applications.
2. Check for battery voltage at the solenoid terminal with the key on. No voltage usually indicates a wiring, fuse, switch, or relay problem rather than a failed solenoid.
3. Listen or feel for a click. A working solenoid will normally move its plunger when power is applied.
4. Check the pump ground. This is a single-terminal solenoid that grounds through its metal body and the injection pump.
5. Compare the pump number and old solenoid number. Similar-looking CAV and Delphi solenoids are available in several voltages and internal configurations.

Part Numbers and Cross References

This genuine Delphi solenoid is commonly cataloged under or used in place of the following numbers:

• 7185-900W
• 7185900W
• 7167-620A
• 7167620A
• RE22744
• RE54064
• E8NN9D278AA
• 83981012
• J904630
• 3904630
• 449679A1
• F7779916
• LDFF1463
• 42558878
• 8104975
• 9959327
• 9986316
• E158792
• K957417

Cross-reference numbers are supplied for identification purposes. Equipment manufacturers occasionally used more than one injection pump or solenoid depending on engine serial number, production date, market, or previous pump replacement.

Older Screw Terminal Versus New Stud Terminal

Some original 7167-620A and 7185-900W solenoids used a screw or bolt to attach the electrical wire. The current genuine Delphi service replacement uses a threaded stud with a washer and nut.

This terminal change is normal. The solenoid still performs the same fuel shutoff function, but the existing wire must have a suitable ring terminal that fits over the new stud.

Do not overtighten the small terminal nut. The nut only needs to hold the electrical connection securely. Excessive force can damage or rotate the insulated terminal.

Common Ford and New Holland Applications

Depending on injection pump and engine configuration, associated Ford and New Holland numbers are commonly found on equipment including:

• Ford / New Holland 3230, 3430, 3930, 4130, 4630, 4830, and 5030 tractors
• Ford / New Holland 5610S, 6610S, 6810S, 7610S, and 7810S tractors
• Ford / New Holland 7840, 8240, and 8340 tractors
• Ford / New Holland 250C, 260C, 345C, 345D, 445C, and 445D equipment
• Ford / New Holland 455C, 455D, 555C, 555D, and 555E backhoes
• Ford / New Holland 575D, 575E, 655C, 655D, 655E, 675D, and 675E equipment
• New Holland L783, L785, LS180, LS190, LX865, and LX885 skid steers
• New Holland LB75.B, LB90, LB95, and related loader-backhoes

Common Case and Case IH Applications

Associated Case and Case IH numbers are commonly cataloged for equipment including:

• Case 480E and 480F
• Case 580E, 580K, 580L, and 580 Super E / K / L
• Case 680K and 680L
• Case 1840 and 1845C skid steers
• Case IH 5120, 5130, 5140, and 5150 Maxxum tractors
• Case IH 5220, 5230, 5240, and 5250 Maxxum tractors
• Select Case IH JX-series tractors using the matching CAV or Delphi pump

Common John Deere Applications

John Deere part numbers RE22744 and RE54064 are associated with many agricultural and industrial machines using compatible CAV, Lucas, or Delphi injection pumps. Commonly cataloged applications include tractors, loaders, generators, and engines in the following families:

• John Deere 5300, 5400, 5400N, and 5500
• John Deere 6300, 6400, 6506, 6600, 6800, and 6810
• John Deere 3029, 4039, 4045, 4239, 6059, and 6068 engine families
• Additional John Deere agricultural, industrial, and generator applications using RE22744 or RE54064

Important Fitment Information

Do not order this solenoid using the tractor or equipment model alone. Many equipment models were produced with multiple injection pumps, and replacement pumps may have been installed during the machine’s service life.

The best identification method is to compare:

• The complete injection pump model number
• The number stamped on the old solenoid
• The system voltage
• The mounting thread
• The plunger and spring arrangement
• The electrical terminal style

If you are unsure, send us the complete model number from the injection pump tag before ordering. Numbers from the engine block or tractor data plate may not identify the injection pump.

Installation Notes

• Disconnect battery power before removing the old solenoid.
• Clean dirt and debris from the area before opening the injection pump.
• Compare the old and new plungers, springs, seals, and terminal arrangement before installation.
• Start the pump threads by hand to prevent cross-threading.
• Do not overtighten the electrical terminal nut.
• After installation, switch the key on and verify that the solenoid operates.
• Start the engine and inspect the solenoid area for fuel leakage.
• Confirm that the engine shuts down normally when power is removed.

Need a Different Voltage or Solenoid Style?

CAV, Lucas, and Delphi pumps use several similar-looking shutoff solenoids. We stock additional 12-volt and 24-volt versions in our diesel injection pump shutoff solenoid category.

You can also browse our complete selection of CAV, Lucas, and Delphi injection pump parts.

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Need anything else?

Remember to please send us your complete pump model number if you are not sure if this fuel shut-off solenoid is right for your application.

You can call us, use our contact form, or even send us an email directly (jason@dieselitems.com)

Thanks!