Enerpac ZA4T-series air-driven torque wrench pumps run hydraulic torque wrenches off shop air, with no electric supply required, making them suited to plant turnarounds, refinery bolting, and field work where spark-free operation matters. As one of the original high-pressure hydraulic builders since 1910, Enerpac rates this equipment for bolting duty alongside its broader 10,000 PSI catalog of pumps, cylinders, and presses. If you are matching an existing pump to a torque wrench or replacing a discontinued model, request a cross-reference quote and we will confirm the equivalent part.
The ZA4T units in this group cover the same air-driven torque-wrench duty but differ by flow rate, reservoir size, and valve configuration, so fit comes down to the torque wrench model, the number of bolting cycles per minute you need, and your available air pressure and volume. Confirm the pump output pressure against your wrench's rated input, then match the oil capacity to your cylinder or wrench advance volume. To place this pump inside a full bolting setup, browse Enerpac Hydraulic Pumps and the connecting Hydraulic Hoses, pair it with the right Hydraulic Cylinders or Hydraulic Jacks, and review the bolting-side Hydraulic Tools. If you are unsure which ZA4T configuration matches your wrench, send the wrench model and we will spec it.
Bolting pumps get specified once and then have to be matched years later when a unit is retired or a part number changes. We cross-reference Enerpac ZA4T-series numbers against current-production air-driven pumps and supply replacement and equivalent parts, including the valves, gauges, and couplers that wear out before the pump body does. If your existing ZA4T pump or its torque-wrench mate is no longer listed, give us the old number and the wrench it drives, and we will identify the equivalent unit. Start a cross-reference quote for any discontinued Enerpac torque-pump part.
9 Enerpac ZA4T-Series Air-Driven Torque Wrench Pumps models · 3 priced online from $11,504.45 · 6 quoted on request · all in stock
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Yes. Every Enerpac product we list is factory-new and genuine — not aftermarket or remanufactured. Item SKUs match the manufacturer part numbers, so you can verify any model directly against Enerpac documentation.
Click Request a Quote on the product (or call (800) 823-4937). We confirm current pricing and availability with the manufacturer and typically respond within one business day.
Yes — Northern Hydraulics has supplied hydraulic equipment since 1963. Call (800) 823-4937 with your application details, or send a quote request with the model you are replacing and we will cross-reference it to the right Enerpac part.
Yes. For multi-unit or recurring orders, use the Request a Quote button — volume pricing on Enerpac equipment is quoted case by case, usually within one business day.