Excavator Hydraulic Spare Parts

176-5321 Modulating Solenoid Valve for Cat D3G D4G D5G D6R D6T

Q: What numbers are documented for 176-5321?

Primary Manufacturer Part Number: 176-5321. Related Owned-Source Number - Verify Function: 226-9629. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 176-5321 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

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OEM / reference176-5321

Specification2-Pin Modulating Solenoid Valve

Catalog ID77400416

176-5321 is documented by Cat as a modulating solenoid valve assembly with a two-pin connector, 7/8-14 male thread and replaceable cartridge/seal components. Manufacturer-listed applications include D3G, D4G, D5G, D6R and D6T tractors plus 973C/973D loaders and selected 349E/349F/352F excavators. Confirm the complete number, coil voltage, connector keying, cartridge nose, thread, hydraulic function and machine serial before ordering.

Product Type: Modulating Solenoid Valve Assembly
Connector: 2 pin
Thread: 7/8-14 male
Published Hex Size: 18.9 mm
Published Overall Length: 3.94 in

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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	Official Cat valve reference	176-5321
Related Owned-Source Number - Verify Function	Not asserted as interchange	226-9629

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

176-5321

Related assembly

226-9629

Formatting aliases are the same number written differently. Related assemblies and remanufactured numbers are not presented as direct interchanges.

Product summary

2-Pin Modulating Solenoid Valve

Category: Excavator Hydraulic Spare Parts
Catalog ID: 77400416
Photo views: 1

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

4 model references

Track-type tractors: Cat D3G / D4G / D5G / D6R / D6T
Track loaders: Cat 973C / 973D
Selected excavators: Cat 349E / 349F / 352F families
Fitment limitation: Confirm number, voltage, connector, cartridge, circuit and serial

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 176-5321

Which machines use 176-5321?

Recorded compatible model references include Track-type tractors: Cat D3G / D4G / D5G / D6R / D6T, Track loaders: Cat 973C / 973D, Selected excavators: Cat 349E / 349F / 352F families, Fitment limitation: Confirm number, voltage, connector, cartridge, circuit and serial. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 176-5321?

Related assembly numbers (not direct interchanges): 226-9629.

How do I confirm 176-5321 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

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