Excavator Engine Parts

129150-02931 Thrust Bearing Set for Yanmar 3JH and 4JH Series

Name: 129150-02931 Thrust Bearing Set for Yanmar 3JH and 4JH Series
Brand: EexcavaStart
SKU: 129150-02931

1 / 3

3 product photos · Swipe on mobile, or hover and select a thumbnail.

OEM / reference129150-02931

SpecificationThrust Bearing Set

Catalog ID79809831

129150-02931 is cataloged as a thrust-bearing assembly in Yanmar JH-series cylinder-block and main-bearing diagrams. Published applications include 3JH25A, 3JH30A and multiple 4JH3, 4JH4, 4JH5, 4JH57 and 4JH80 variants. The owned gallery shows the matching two-piece semicircular thrust bearing set. The former 4TNV88 claim is removed because it is not supported by the retained catalog record. Confirm part number, engine suffix, bearing grade, crankshaft dimensions and serial range.

Product Type: Two-piece thrust bearing set
Catalog Position: Cylinder block / main bearing
Visible Construction: Two semicircular bearing halves with locating tabs
Condition: New replacement part

Send email inquiry Ask on WhatsApp Return to catalog

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 Yanmar Part Number	Cataloged thrust-bearing assembly	129150-02931

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

129150-02931

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

Product summary

Thrust Bearing Set

Category: Excavator Engine Parts
Catalog ID: 79809831
Photo views: 3

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

Yanmar 3JH Examples: 3JH25A / 3JH30A and related cataloged variants
Yanmar 4JH Examples: 4JH3 / 4JH4 / 4JH5 / 4JH57 / 4JH80 families
Fitment Limitation: Confirm 129150-02931, engine suffix, bearing grade, crankshaft dimensions 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 129150-02931

Which machines use 129150-02931?

Recorded compatible model references include Yanmar 3JH Examples: 3JH25A / 3JH30A and related cataloged variants, Yanmar 4JH Examples: 4JH3 / 4JH4 / 4JH5 / 4JH57 / 4JH80 families, Fitment Limitation: Confirm 129150-02931, engine suffix, bearing grade, crankshaft dimensions and serial range. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 129150-02931?

No alternate number is listed for 129150-02931. Send the original nameplate for an alternate-number check.

How do I confirm 129150-02931 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.

Browse this category