

Seal Ceramic Spring PB4-50
Polaris Pump Mechanical Seal
The following part numbers are all the same product w0479401a, w0479400 and R0735500
W0479401a
New part R0735500
Part #4 in Exploded diagram
✅ Fits Polaris PB4-50 (2011 → current)
❌ Does not fit PB4-50A (pre-2011)
$7.24
Original: $20.68
-65%Seal Ceramic Spring PB4-50—
$20.68
$7.24Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Polaris Pump Mechanical Seal
The following part numbers are all the same product w0479401a, w0479400 and R0735500
W0479401a
New part R0735500
Part #4 in Exploded diagram
✅ Fits Polaris PB4-50 (2011 → current)
❌ Does not fit PB4-50A (pre-2011)






