Lower Unit Gearcase Seal Kit – Fits Mercury/Mariner/Force 30-125 HP (Replaces 26-43035A4, 18-2626) Ranger many marine mechanics recommend replacing

many marine mechanics recommend replacing the water pump impeller and all lower unit seals every 3-5 years or 300-500 operating hours

along with tools to disconnect hydraulic lines (flare nut wrenches are recommended to prevent stripping fittings)

Alpha One (1983–1990)

Notes Yanmar 4LHA-DTE 4-Stroke 121850-42280E Yanmar 4LHA-DTP 4-Stroke 121850-42280E Yanmar 4LHA-DTZE 4-Stroke 121850-42280E Yanmar 4LHA-DTZP 4-Stroke 121850-42280E Yanmar 4LHA-HTE 4-Stroke 121850-42280E Yanmar 4LHA-HTP 4-Stroke 121850-42280E Yanmar 4LHA-HTZE 4-Stroke 121850-42280E Yanmar 4LHA-HTZP 4-Stroke 121850-42280E Yanmar 4LHA-STE 4-Stroke 121850-42280E Yanmar 4LHA-STP 4-Stroke 121850-42280E Yanmar 4LHA-STZE 4-Stroke 121850-42280E Yanmar 4LHA-STZP 4-Stroke 121850-42280E Yanmar 4LH-DTE 4-Stroke 121850-42280E Yanmar 4LH-DTZ 4-Stroke 121850-42280E Yanmar 4LH-HT 4-Stroke 121850-42280E Yanmar 4LH-HTE 4-Stroke 121850-42280E Yanmar 4LH-HTZ 4-Stroke 121850-42280E Yanmar 4LH-HTZAY 4-Stroke 121850-42280E Yanmar 4LH-ST 4-Stroke 121850-42280E Yanmar 4LH-STE 4-Stroke 121850-42280E Yanmar 4LH-STZ 4-Stroke 121850-42280E Yanmar 4LH-STZAY 4-Stroke 121850-42280E Yanmar 4LH-TE 4-Stroke 121850-42280E Yanmar 4LH-UT 4-Stroke 121850-42280E Yanmar 4LH-UTZ 4-Stroke 121850-42280E Yanmar 4LH-UTZAY 4-Stroke 121850-42280E Yanmar 4LH-WST 4-Stroke 121850-42280E Yanmar 4LH-WSTZY 4-Stroke 121850-42280E Yanmar 4TN100TE-GB1 4-Stroke 121850-42280E Industrial application Yanmar 4TN100TE-G1 4-Stroke 121850-42280E Industrial application

Lower Unit Gearcase Seal Kit – Fits Mercury/Mariner/Force 30-125 HP (Replaces 26-43035A4, 18-2626) Ranger many marine mechanics recommend replacingProduct Details This Lower Unit Gearcase Seal Kit is designed for a wide range of Mercury, Mariner, and Force outboards. It provides the essential seals and gaskets for servicing the lower unit on 30125 HP 2 stroke and 4 stroke models from 1983 to current, including Bigfoot, SeaPro, and Marathon models. It also covers Force 75120 HP outboards from 19951999. The kit serves as a direct replacement for multiple part numbers, including Mercury 26 43035A4,