Wacker Neuson old style PT3 and PT3A genuine OEM mechanical seal, o-ring kit.
Add our DHS Quality Parts brand Pump Vacuum Test Gauge to accurately test the diagnose pump performance.
SERVICE NOTE: See ITEM NUMBER fitment below. DOES NOT FIT ALL MODELS.

MODEL SPECIFICATIONS:
- PT3 NEW: The newest production model of the PT3 and PT3A, with threaded impeller
- PT3: Second generation PT3 and PT3A, with threaded impeller
- PT3 OLD: First generation PT3 and PT3A, with impeller secured by castle nut
!! VERIFY ITEM NUMBER ON DATA TAG BEFORE ORDERING OR CALL TO CONFIRM FITMENT !!
- Genuine Wacker Neuson part
- Wacker 0078837, 5000078837
- Mechanical seal 0078837, 5000078837
- Cover o-rings 0029730, 5000029730
- Volute o-ring 0029731, 5000029731
- Impeller o-ring 0029727, 5000029727
- This part fits first generation Wacker PT3 and PT3A models
This part only fits PT3 pumps with the following ITEM numbers:
- 5000006729
- 5000006730
- 5000006731
- 5000007118
- 5000007119
- 5000007171
Wacker Neuson
Mechanical Seal | Wacker PT2, PT2A, PT3, PT3A | 0078837, 5000078837
MSRP:
Was:
Now:
$22.13
Wacker Neuson
Old Style Mechanical Seal Kit | Wacker PT2, PT2A - Non-Threaded Impeller | 0078837, 5000078837
MSRP:
Was:
Now:
$50.95
Wacker Neuson
New Style Mechanical Seal Kit | Wacker PT3, PT3A - Threaded Impeller | 0117819, 5000117819
MSRP:
Was:
Now:
$65.95
Wacker Neuson
Pump Overhaul Kit - Wacker Neuson PT3, PT3A (Threaded Impeller) - Genuine OEM Kit
MSRP:
Was:
Now:
$234.95
Wacker Neuson
O-Ring Kit | Wacker PT3, PT3A - Non-Threaded Impeller | 29730, 29731, 29727
MSRP:
Was:
Now:
$19.95
Wacker Neuson
Wacker Neuson Part # 5000117819 - Mechanical Seal, PT3, PT3A - Genuine OEM Part
MSRP:
Was:
Now:
$48.95
Wacker Neuson
Mechanical Seal Kit | Wacker PT3, PT3A - 5100 Series | 5100044463
MSRP:
Was:
Now:
$134.95
Wacker Neuson
Wacker Neuson Part # 5000117806 - Impeller, PT3, PT3A - Genuine OEM Part
MSRP:
Was:
Now:
$122.95
Wacker Neuson
O-Ring Kit | Wacker PT3, PT3A - Threaded Impeller | 119408, 119409, 119410, 119411
MSRP:
Was:
Now:
$18.50