New Aftermarket 4525V42A21 1AA22R Double Vane Pump

Product overview

New aftermarket 4525V42A21 1AA22R — a 4525V double vane pump: two cartridge sections on one shaft, one inlet and two independent outlets, so two circuits can run at different pressures and flows. The model number is decoded item by item below.

Model code — 4525V42A21 1AA22R

The model code fixes every mechanical interface of the pump. This unit reads as follows, using the position numbers of the model-code system:

Position	Value	Meaning
1 Seals	—	omitted — standard seals
2 Series	4525V	double pump: 45V shaft-end with 25V cover-end (first pair = shaft-end size, second pair = cover-end size)
3 Pilot	—	omitted — standard pilot
4 Shaft-end displacement	42	42 = 138 cm³/r
5 Port	A	SAE 4-bolt flange (the only option on doubles)
6 Port modifier	—	omitted — inch threaded ports
7 Cover-end displacement	21	21 = 67 cm³/r
8 Mounting	—	omitted — flange mounting
9 Shaft	1	keyed shaft
10 Port orientation	AA	viewed from the cover end — outlet 1 opposite the inlet; outlet 2 135° counter-clockwise from the inlet
11 Design	22	design number of this series
12 Rotation	R	right-hand (clockwise)
13 Special suffix	—	omitted — none

Ordering

Send us the complete model number from your nameplate and we will confirm this pump matches before you order. Port flange kits are ordered separately.

Other models in this series

More V Double Vane Pumps models we stock (4525V frame first):

• 4525V42A21 11AA22R
• 4525V42A12 1AA22R
• 4525V42A14 1AA22R
• 4525V42A17 1AA22R
• 4525V42A12 1AD 22R
• 4525V42A14 1BB22R

Series overview

Series page: V Double Vane Pumps. Parent range: V / VQ Double Vane Pumps · Family: V · VQ · 50V Series.

Cartridges and kits for this pump: V / VQ Cartridge Kits — the cartridge is interchangeable within the same position in the housing, so the original housing and shaft stay on the machine.

Not sure about the fit? Contact us with the full nameplate code and we will confirm before you order.