35915 Aftermarket Mercruiser Pinion Separator | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket MerCruiser bearing thrust ring / pinion spacer - Part Number: 35915

A replacement gearcase bearing thrust ring used in selected early MerCruiser sterndrive lower units. This is a gearcase component, not a workshop separator tool. It supports and spaces the bearing-carrier assembly and cross-references to Sierra 18-3759 and GLM 23141.

⚙️ Key Features

• Precision-machined gearcase thrust ring

• Supports correct bearing-carrier spacing

• Direct replacement for obsolete Mercury 35915

• Used inside selected early MerCruiser gear housings

• Must be installed in the correct orientation during gearcase assembly

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• Mercury/MerCruiser 35915 (obsolete OEM thrust-ring reference)

OEM / Related Numbers:

• 35915

• Sierra 18-3759

• GLM 23141

• Recmar REC35915

Aftermarket / Verified Equivalents:

• Sierra: 18-3759

• GLM: 23141

• Recmar: REC35915

Important Application Notes:

• The supplied title incorrectly describes this part as a pinion-separator tool.

🚤 Compatibility

Commonly used on:

• Early MerCruiser sterndrive gearcase bearing-carrier assemblies

Typically suits:

• Drive / engine models:

• MerCruiser 225-S, 1974, serial 3856268-4200499

• MerCruiser 233, 1975-1977, serial 4200500 and later within the listed production group

• MerCruiser 470, 1976-1977, serial 4208730-4893934

• MerCruiser 120/140, 1978-1982, serial 4893635-6225576

• MerCruiser 165, 1978-1981, serial 4890460 and later within the listed production group

• MerCruiser 898, 260 and 228, 1978-1982, serial 4898730-6225576

• MerCruiser 470 and 485, 1978-1982, serial 4893835 and later within the listed production group

• Selected MerCruiser R/MR/Alpha One gearcases using thrust ring 35915

• Component Type: Bearing-carrier thrust ring / pinion spacer

• Installation Position: Lower gear housing bearing-carrier assembly

🔌 Function

The thrust ring provides the specified axial support and spacing for the bearing-carrier and gearcase components so bearing preload and gear alignment remain within specification.

Common signs the tool or component is required:

• The specified component cannot be removed or installed without damaging the surrounding housing

• A standard puller, wrench or improvised tool cannot engage the factory service points correctly

• Accurate bearing, gear, cable or pulley positioning is required during assembly

• Corrosion, press fit or retained components require controlled service force

• The applicable workshop procedure calls for the listed OEM special-tool number

📦 Condition

• Brand new aftermarket replacement tool or service component

• New and unused

• Supplied in manufacturer or equivalent protective packaging