Product overview
New aftermarket V20P 1S13T 38D4H 12 — a V20 balanced vane pump in the earlier ordering system (a cover version with an integral flow control or priority valve). The model number is decoded item by item below.
Model code — V20P 1S13T 38D4H 12
| Series | V20 (earlier M-2004-S ordering code) |
| Cover | priority valve cover (V20P); controlled flow 4 USgpm; relief setting 2000 psi |
| Mounting | flange, 2-bolt SAE A |
| Inlet | S |
| Outlet | T |
| Ring size | 13 = 42.4 cm³/r |
| Shaft | 38 = splined |
| Outlet position | 90° CW from the inlet |
| Design number | 12 |
| Rotation | right hand (clockwise) |
| Code system | Earlier 15-item system, not interchangeable with the current 11-item code |
Ordering
V20 exists in two code generations and they are not interchangeable. Send us the complete number from your nameplate and we will confirm which system it belongs to and that this pump matches.
Other models in this series
Other V20 Vane Pump models we stock:
- V20P 1S13T 38B8J 12R — ring size 13
- V20P 1P13T 38C4H 12 — ring size 13
- V20P-1S-12T-1C-2E-12 — ring size 12
- V20P 1S11T 38C6D12R — ring size 11
- V20P 1S11T 1C6H 12 LH — ring size 11
Series overview: V20 Vane Pump. Full family: V10 · V20 · V200 · VTM42 Series. Not sure about the fit? Contact us with the full nameplate code and we will confirm before you order.




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