988851 – Shift Lever Slider – Mercury Mariner

The 988851 Shift Lever Slider – Mercury Mariner is an essential component in the shift-control system found in many small and mid-size Mercury and Mariner outboards. This slider sits between the shift linkage and the shift shaft, allowing smooth and accurate gear engagement. When the slider wears down or cracks, the engine can struggle to shift cleanly, making replacement important for reliable performance.

This unit offers a solid, precise fit. The molded body supports the shift rod securely, while the metal threaded posts allow firm mounting on the bracket or linkage arm. A worn shift lever slider can cause hesitation, stiff shifting, or the engine slipping out of gear. Installing the 988851 Shift Lever Slider – Mercury Mariner restores the crisp feel of the factory control system and helps protect both the gearbox and the shift linkage.

If you are servicing an older Mercury or Mariner engine, this part often appears on the list of recommended replacements during gearcase or linkage maintenance. Many outboards that use mechanical linkages rely heavily on this slider to maintain correct alignment. A fresh slider removes play in the system and improves throttle-and-shift response.

Shop at Arizona Outboard Dismantlers to keep your outboard on the water. We supply quality components and hard-to-find parts to help you maintain confidence every time you shift into gear.