Excavator Engine Parts

129486-59551 Fuel Return Pipe for Yanmar 3TNV88 4TNV98T Engines

Q: What numbers are documented for 129486-59551?

Primary Equipment Part Number: 129486-59551. Formatted Alias: 12948659551. Service Replacement: 119125-59570. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 129486-59551 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.

129486-59551 Fuel Return Pipe for Yanmar 3TNV88 4TNV98T Engines, OEM/reference 129486-59551, Fuel Return Pipe Assembly, product view 1

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OEM / reference129486-59551

SpecificationFuel Return Pipe Assembly

Catalog ID51777101

Fuel-return pipe assembly identified by part number 129486-59551. Yanmar parts records place the exact pipe in 3TNV88 and 4TNV98T fuel systems and show 119125-59570 as the current replacement for the older 129486-59551 service number. Confirm engine suffix and hose routing.

Product Type: Fuel-return pipe assembly
Service Note: Older number replaced by 119125-59570 in current catalog

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Part-number relationships

Relationship	Reference family	Number
Primary Equipment Part Number	Fuel-return pipe assembly	129486-59551
Formatted Alias	Same number without separator	12948659551
Service Replacement	Current published Yanmar service number	119125-59570

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

129486-59551

Formatting alias

12948659551

Other documented relationship

119125-59570

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

Product summary

Fuel Return Pipe Assembly

Category: Excavator Engine Parts
Catalog ID: 51777101
Photo views: 4

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

2 model references

Yanmar engines: 3TNV88-BQIKA / 4TNV98T-NSA2
Fitment limitation: Confirm engine suffix, return-pipe fittings and hose routing

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 129486-59551

Which machines use 129486-59551?

Recorded compatible model references include Yanmar engines: 3TNV88-BQIKA / 4TNV98T-NSA2, Fitment limitation: Confirm engine suffix, return-pipe fittings and hose routing. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 129486-59551?

Formatting aliases for the same number: 12948659551.

How do I confirm 129486-59551 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 verified references from the same system.

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