Description

The Mercury MerCruiser Quicksilver 42461A1 is a genuine Mercury Marine OEM sleeve/ring kit used in select Mercury and Mariner outboard gearcase and lower-unit assemblies. This small sealing and wear-related kit is commonly associated with driveshaft, water pump base, and upper gear housing service where the Mercury parts diagram calls for 42461A1. It is used to help maintain the correct sealing interface around the driveshaft area during lower-unit service.

Key Features

• Genuine Mercury Marine factory OEM sleeve/ring kit.
• Mercury/MerCruiser part number: 42461A1.
• Official part label: SLEEVE/RING KIT.
• GTIN/UPC: 745061147867.
• Listed shipping weight: 0.02 lb.
• Listed shipping dimensions: 1.00 in. L x 1.25 in. W x 1.25 in. H.
• Used in select Mercury and Mariner lower-unit, gearcase, driveshaft, and water-pump-related assemblies where specified by the factory parts diagram.

Application Compatibility

Common where-used application groups include select Mercury and Mariner outboards by serial number and gearcase configuration, including:

• 30 hp and 40 hp FourStroke applications
• 40 hp EFI FourStroke and 40 Jet applications
• 45 Jet applications
• 50 hp 3-cylinder applications
• 50 hp FourStroke / BigFoot / EFI FourStroke applications
• 55 hp and 60 hp 3-cylinder applications
• 60 hp BigFoot and 60 EFI FourStroke applications
• 65 Jet and 80 Jet applications
• 70, 75, 80, and 90 hp 3-cylinder applications
• 75, 90, 115, and 125 DFI 1.5L 3-cylinder applications where specified
• 75, 80, 90, 100, and 115 EFI FourStroke applications where specified
• 100, 115, and 125 hp 4-cylinder applications where specified

Use this kit only where the Mercury/MerCruiser lower-unit or gearcase parts diagram specifically calls for 42461A1.

Fitment Notice

Confirm fitment by engine serial number, lower-unit/gearcase style, driveshaft configuration, and diagram location before ordering. Mercury used different gearcase seal, sleeve, ring, and water pump base components across engines with similar horsepower ratings, so horsepower alone is not enough to confirm fitment.

When This Part Needs Replacement

Replace this sleeve/ring kit during lower-unit service when the original sleeve or ring is worn, damaged, corroded, distorted, missing, or removed during gearcase or water pump base service. It should also be inspected when servicing water intrusion concerns, milky gear lube, driveshaft seal wear, or repeated leakage around the upper gear housing area.

Installation Notes

Install this kit only in the exact factory diagram location that calls for 42461A1. Inspect the driveshaft surface, water pump base, oil seals, gaskets, and upper gear housing components while the lower unit is apart. If water has entered the gear lube, pressure/vacuum testing the gearcase after service is recommended. Follow the Mercury service manual for the correct installation method for the specific gearcase.

Alternate/Superseded Part Numbers

• 42461A1 — Mercury/MerCruiser sleeve/ring kit number

Parts Desk Insight

This is a small lower-unit service part, but it should be matched carefully because the sleeve and ring work with the surrounding driveshaft and gearcase sealing components. If the gear lube shows signs of water contamination, inspect the related driveshaft seals, water pump base, and gearcase gaskets at the same time instead of replacing this kit alone.

Shipping: Ships same or next day for fast Canada wide shipping.