Fuel Lift Pump 129100-52101 for Yanmar 3TNV70 3TNE78A 4TNE84 4TNE88A
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
- Yanmar 3TNV70
- Yanmar 3TNE78A
- Yanmar 4TNE84
- Yanmar 4TNE88A
Product Overview
This mechanical pump moves diesel from the supply side toward the injection system. Long cranking after sitting, repeated loss of prime or low fuel delivery can point to the lift pump, but a plugged filter, tank restriction or air leak on the suction side can produce the same symptoms.
Exact matching listings identify 129100-52101 for Yanmar 3TNV70, 3TNE78A, 4TNE84 and 4TNE88A engines. Closely related Yanmar catalogs also show 129100-52100 on several TNE applications, so the number on the original pump and the mounting/lever shape should be compared.
Prime the fuel system according to the equipment procedure after installation and inspect hose condition while access is available.
Key Features & Performance
- Mechanical low-pressure fuel lift pump
- Reference 129100-52101
- Supports selected Yanmar TNV/TNE engines
- Engine-mounted lever-actuated design
Reference Numbers
- 129100-52101
- 129100-52101AFP9 as shown in matching marketplace listings
- 129100-52100 is a closely related Yanmar catalog reference on some TNE applications
Frequently Asked Questions
What should I verify before ordering?
Match the exact pump number, lever shape, flange and ports. Do not assume 129100-52100 and -52101 versions are interchangeable without comparison.
Is this a genuine equipment-manufacturer part?
This listing is for a replacement component identified by the application and reference numbers above. It is not represented as a genuine equipment-manufacturer part unless that is explicitly stated on the product packaging or elsewhere in this listing.