Vickers 45VT Thru-Drive Vane Pump: Parts Catalog, Service Data & Rebuild Guide

The Vickers 45VT is the thru-drive version of the 45V fixed displacement vane pump, the largest thru-drive in the V series. The input shaft passes straight through so a second pump can be bolted to the back and driven from the same motor, and the parts that define a 45VT build are the adapter plate, coupling and, on BP models, a spacer. There are four variants: VTA, VTB, VTBP and VTC. The pumping cartridge is a standard 45V section with a 12 vane rotor, and its cover bolts carry the highest torque figure of any V series thru-drive at 344 to 371 N.m. RestoPower supplies OEM or aftermarket equivalent cartridge kits, vane kits, adapter kits, coupling kits and seal kits for every 45VT variant.

Exploded View and Parts Diagram

Vickers 45VT thru-drive vane pump exploded view diagram with adapter plate, coupling and spacer kit table, seal kit table and 344-371 Nm cover bolt torque

Vickers 45VT thru-drive assembly showing the A, B and C adapter plates, couplings and the BP spacer parts. Every part number and torque figure quoted on this page is read directly off this drawing.

Adapter, Coupling and Spacer by Thru-Drive Type

This table is what makes a 45VT job different from a plain 45V. Identify your thru-drive type first.

Type	Adapter Plate	Adapter Kit	Spacer Kit	Retaining Ring	Coupling	Coupling Kit
VTA	584936	941296	-	223172	426770	02-136810
VTB	584922	941297	-	83003 (1 req'd)	584924	02-136813
VTBP	584922	941297	02-136817	83003 (2 req'd)	584924	02-136814
VTC	581833	941298	-	103989	585658	02-136816

Note printed on the drawing: for BP models an adapter kit AND a spacer kit are both required. Ordering the adapter kit alone will leave you short on a BP build. Note also that the VTB and VTBP share a coupling (584924) but take different coupling kits and a different number of retaining rings.

Seal Kits by Model

Model	Seal Kit	F3 Seal Kit
45VTA	920201	920202
45VTB	920203	920204
45VTBP	02-136931	02-136932
45VTC	920205	920206

Cartridge and Common Parts

02-136718	Vane Kit, includes 12 vanes and inserts
578900	Rotor
578903	Inlet Plate S/A
220888	Pin, 2 required
289476	Screw, 2 required
351776 / 154086 / 154088 / 353409 / 435714	O-Rings
582519	Washer, 4 required, C adapter only

BP models only: spacer 588725, O-ring 375422, washer 427700 and screw 205436 (2 req'd). Parts prefixed with a symbol on the drawing are available only as part of a kit.

Vickers 45VT Torque Specs

Fastener	Applies to	Torque
87947 Bolt (4 req'd), cover	All 45VT	344-371 N.m (255-275 lb.ft)
298147 Bolt (4 req'd), adapter plate	A and B adapters	55.2-67.8 N.m (40-50 lb.ft)
298148 Bolt (4 req'd) with washer 582519	C adapter	55.2-67.8 N.m (40-50 lb.ft)

Unlike the 35VT, all three 45VT adapter types take the same bolt torque; only the bolt part number and the washers change on the C adapter.

Download the Service Data PDF

How to Rebuild a Vickers 45VT Thru-Drive Vane Pump

A 45VT rebuild is a standard 45V cartridge job plus the thru-drive hardware at the back. Rebuild the pumping section as normal, then give the coupling and adapter their own inspection, because a worn coupling is the fault that most often brings a thru-drive back a second time. This is a heavy pump with very high cover bolt torque, so support it properly and use a wrench that genuinely reaches 371 N.m. Budget three hours.

Step 1: Identify Your Thru-Drive Type

Before you order anything, work out whether you have a VTA, VTB, VTBP or VTC. The adapter plate, coupling, coupling kit, retaining ring count and seal kit all change with the type, and a BP build additionally needs a spacer kit. Getting this wrong is the single most common ordering error on a 45VT.

Step 2: Clean, Drain and Mark

Wash the outside of the pump before anything comes apart and drain the remaining oil. Read the drained oil: bronze glitter points to the cartridge or bearing, steel points to the shaft, rotor or a failing coupling. Scribe the cover to housing relationship and the port positions, and mark the adapter plate orientation.

Step 3: Remove the Rear Pump and Adapter

Remove the second pump if one is fitted, then undo the four adapter plate bolts (298147 on an A or B, 298148 with washers 582519 on a C) and lift the adapter plate off. Recover the coupling and its retaining ring, noting how many rings your build uses: one on a VTB, two on a VTBP. On a BP build also recover spacer 588725, washer 427700 and the two 205436 screws.

Step 4: Withdraw the Cartridge Kit

Undo the four 87947 cover bolts and lift the cover straight off. These are torqued to 344-371 N.m, so expect them very tight; loosen evenly in a crossing pattern. Withdraw the cartridge as an assembly: inlet plate 578903, cam ring, rotor 578900 with its 12 vanes and inserts, and the outlet plate. Note which face of the cam ring pointed toward the cover. The two 220888 pins locate the cartridge.

Step 5: Inspect the Cartridge and the Coupling

Cam ring: look for a wear step at the two lift zones. Any ridge you can feel with a fingernail condemns the whole cartridge kit.
Rotor slots: check for bell mouthing at the outer edge, which lets the vanes cock and chatter.
Vanes and inserts: chipped or rounded leading edges mean the pump has been running cavitated. Vane kit 02-136718 covers all 12.
Coupling: inspect the splines for wear, twist or rounding. This is the part a thru-drive kills, and a worn coupling will chew the splines on a new rear pump within hours. Replace it with the coupling kit for your type rather than the bare coupling.
Adapter plate pilot: check the register bore for fretting, which lets the rear pump run misaligned.

Step 6: Reassemble and Torque

Fit a complete new cartridge kit. Never mix a new cam ring with old vanes; they wear as a matched set.
Fit all new seals from the seal kit for your model: 920201 on a VTA, 920203 on a VTB, 02-136931 on a VTBP, 920205 on a VTC, or the F3 equivalent.
Confirm the two 220888 locating pins are seated before the cover goes on.
Fit the coupling kit and the correct number of retaining rings for your type.
On a BP build, fit both the adapter kit and the spacer kit. One without the other will not assemble correctly.
Prefill the housing with clean oil, then torque the four 87947 cover bolts to 344-371 N.m (255-275 lb.ft) and the four adapter bolts to 55.2-67.8 N.m (40-50 lb.ft), both evenly in a crossing pattern.

Step 7: Test and Run In

Turn the shaft by hand with the rear pump fitted; it should rotate smoothly with no tight spots or notchiness through the coupling. Start the machine unloaded at low speed, bleed both circuits, and confirm each pump primes. Run unloaded for several minutes before applying pressure, and load each circuit separately.

Common 45VT Faults and the Parts That Fix Them

Rear pump fails repeatedly: worn coupling splines. Replace the coupling kit and check the adapter plate register for fretting.
Knocking or rattle at the back of the pump: coupling wear or a missing retaining ring. A VTBP takes two.
Whining or chattering under load: worn cam ring and vanes, or a restricted inlet. At 45VT flows the inlet is very often the real fault; check it first.
Oil weeping at the shaft: worn shaft seal, or a grooved shaft if the leak returns quickly.
Leak at the cover joint after rebuild: the 87947 bolts not brought to the full 344-371 N.m.
BP build will not go back together: spacer kit 02-136817 missing. BP models need both the adapter kit and the spacer kit.

Vickers 45VT Specifications

Type: Fixed displacement balanced vane pump with thru-drive
Variants: 45VTA, 45VTB, 45VTBP, 45VTC
Vanes: 12 vanes and inserts per cartridge
Rotor: 578900. Vane kit: 02-136718. Inlet plate: 578903
Cover bolt torque: 344-371 N.m (255-275 lb.ft), 4 off part 87947
Adapter plate bolt torque: 55.2-67.8 N.m (40-50 lb.ft)
Service reference: I-3151-S
Compatible brands: Vickers, Eaton Vickers, Danfoss legacy
Applications: Machine tools, presses, large power units needing two pumps from one drive

Shop OEM or Aftermarket Equivalent 45VT Replacement Parts

Frequently Asked Questions

How do you rebuild a Vickers 45VT thru-drive vane pump?

Identify whether you have a VTA, VTB, VTBP or VTC first, then drain and clean the pump, remove the rear pump and the four adapter plate bolts, recover the coupling and its retaining rings, undo the four 87947 cover bolts and withdraw the cartridge kit. Fit a complete new cartridge, the coupling kit for your type and the seal kit for your model, then torque the 87947 cover bolts to 344-371 N.m and the adapter bolts to 55.2-67.8 N.m and run each circuit in separately.

What is the cover bolt torque on a Vickers 45VT?

344 to 371 N.m, which is 255 to 275 lb.ft, on the four 87947 cover bolts, tightened evenly in a crossing pattern. This is the highest torque figure of any V series thru-drive, so use a wrench that genuinely reaches it. The adapter plate bolts are a much lower 55.2 to 67.8 N.m.

What seal kit fits a Vickers 45VT?

It depends on the thru-drive type. A 45VTA takes 920201, a 45VTB takes 920203, a 45VTBP takes 02-136931 and a 45VTC takes 920205. The F3 equivalents are 920202, 920204, 02-136932 and 920206 respectively.

What extra parts does a 45VT BP model need?

A BP model needs both an adapter kit and a spacer kit. That is adapter kit 941297 plus spacer kit 02-136817, and the build also uses two 83003 retaining rings rather than one, along with spacer 588725, washer 427700, O-ring 375422 and two 205436 screws.

Why does the pump on the back of my 45VT keep failing?

Almost always a worn coupling. The coupling splines take the full torque of the rear pump, and once they are rounded they destroy the splines on whatever is fitted behind. Replace the coupling kit for your type and check the adapter plate register bore for fretting at the same time.

Related Catalogs

Need help finding the right parts? Contact us at info@restopower.com or call (810) 882-1171 and we will confirm fitment the same day.