Link-Belt 3A 7978 Plunger for Link-Belt Cranes (3A7978)

What is Link-Belt part 3A 7978?

Link-Belt 3A 7978 (also written 3A7978) is a Link-Belt Cranes part number listed as “PLUNGER” (plunger for Link-Belt cranes), sold each.

Valve seats, stops, plungers and springs are the internal parts of a hydraulic or pressure-regulating valve; their dimensions set how the valve opens, closes and seals.

Which Link-Belt crane does 3A 7978 fit?

Link-Belt Cranes builds rough-terrain, truck, all-terrain, telescopic crawler and lattice crawler cranes, and one part number can be used on more than one model. We confirm the fit by crane model and serial number: send both with your request and we check 3A 7978 against them before quoting.

A customer asked PE Energy for this part in January 2026, in a parts list for a Link-Belt crane.

What are the details of Link-Belt 3A 7978?

Part number: 3A 7978 / 3A7978
Listed description: PLUNGER
Part type: Plunger
Unit: EA (each)
Part number of: Link-Belt Cranes
Supply: quote-only, by part number

How do I request a quote for Link-Belt 3A 7978?

Request a quote by part number 3A 7978. Tell us the quantity, the crane model and serial number, and the delivery country. We confirm price, availability and lead time with the quote. Spaces in Link-Belt part numbers are optional: 3A 7978 and 3A7978 are the same part.

PE Energy is an independent supplier. We are not an authorized Link-Belt dealer or distributor and are not affiliated with or endorsed by Link-Belt Cranes. Link-Belt® is a trademark of its owner; the name and part numbers are used only to identify the parts we can source and quote.