Our offices are closed for Labor Day. Orders placed online will be processed on Tuesday 9/2/2025.
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This is a Northern Lights O-Ring. This is a genuine Northern Lights part shipped with a 6-month warranty.
Call us at 888.687.0539 with questions or buy online. As always, your satisfaction is guaranteed!
SEAL - M643 / M643K / M643M / NL643 (SEA WATER PUMP, LIP TYPE)
$26.34
O-RING - M643 / M643K / M643M / NL643
$1.83
MECHANICAL SEAL - M643 / M643K / M643M / NL643 (SEA WATER PUMP, GREEN)
$64.47
MOUNTING O-RING - M643 / M643K / M643M / NL643 (SEA WATER PUMP)
$1.64
