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Excavator Hydraulic Spare Parts

705-51-20160 Tandem Hydraulic Pump Assembly for Komatsu D66S-1 Crawler Loader

Name: 705-51-20160 Tandem Hydraulic Pump Assembly for Komatsu D66S-1 Crawler Loader
Brand: EexcavaStart
SKU: 705-51-20160

OEM / reference705-51-20160

SpecificationTandem Hydraulic Pump Assembly

Catalog ID74835828

Tandem hydraulic pump assembly identified by part number 705-51-20160. Independent exact-number equipment catalogs consistently place this pump on the Komatsu D66S-1 crawler loader, including serial-number range 1001 and up. The owned photographs show the same tandem pump configuration. Confirm the complete number, port layout, mounting flange and shaft before ordering.

Fitment status: Verified · Checked 2026-07-28

Product Type: Tandem Hydraulic Pump Assembly
Product Brand: EexcavaStart
Pump Construction: Tandem gear-pump assembly
Equipment System: Crawler-loader hydraulic system
Published Package Weight: 14.5 kg

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Part-number relationships

Relationship	Reference family	Number
Primary Manufacturer Part Number	Tandem hydraulic pump assembly	705-51-20160
Normalized Search Alias	Formatting-only alias; not a separate interchange	7055120160

Evidence record

Source: Exact-reference evidence retained for internal audit
Evidence grade: multi-source-supported
Checked: 2026-07-28

Source URLs, catalog files and local evidence paths are stored in the protected product audit record and are not public outbound links.

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

705-51-20160

Formatting alias

7055120160

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

Product summary

Tandem Hydraulic Pump Assembly

Category: Excavator Hydraulic Spare Parts
Catalog ID: 74835828
Photo views: 6

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

3 model references

Machine: Komatsu D66S-1 crawler loader
Published Serial Range: 1001 and up
Fitment limitation: Confirm 705-51-20160, tandem body configuration, port locations, flange, shaft and serial range

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 705-51-20160

Which machines use 705-51-20160?

Recorded compatible model references include Machine: Komatsu D66S-1 crawler loader, Published Serial Range: 1001 and up, Fitment limitation: Confirm 705-51-20160, tandem body configuration, port locations, flange, shaft and serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 705-51-20160?

Formatting aliases for the same number: 7055120160.

How do I confirm 705-51-20160 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.

Continue comparing recovered references from the same system.

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