EMP Drain/Fill Plug Washer 27-00957-1, Replaces 311598, Fits Evinrude 40/48/50 HP w/15 Inch Shaft (1993 and Up)

This EMP Drain/Fill Plug Washer, part number 27-00957-1, is a plastic gasket used to seal the drain and fill plug on Evinrude outboard gearcases. It is designed to be used with the 18-2387 drain screw and directly replaces OEM number 311598, restoring a proper seal on the gearcase drain/fill port so gear lube stays in and water stays out. The washer is sold as a package of 5, giving you spares on hand for routine gear lube changes rather than a single-use part that leaves you without a backup.

This washer fits outboards of 40, 48, and 50 horsepower with a 15 inch shaft, on model years 1993 and up. Because it is a low-cost, high-turnover maintenance part, it is worth replacing at every gear lube service rather than reusing an old, compressed washer, which can lead to a poor seal and lube leakage or water intrusion into the gearcase.

Specifications

• Brand: EMP
• Manufacturer Part Number: 27-00957-1
• Type: Drain/Fill Plug Washer
• Material: Plastic
• Package Quantity: 5
• Used With: 18-2387 Drain Screw
• Replaces (OEM): 311598
• Fitment: Evinrude 40/48/50 HP w/15 Inch Shaft (1993 and Up)
• Weight: 0.001 pounds

Fitment

• Evinrude outboards, 40/48/50 HP with 15 inch shaft, 1993 and up

Replaces (OEM)

• 311598

Frequently Asked Questions

What does the EMP 27-00957-1 washer fit? The EMP 27-00957-1 drain/fill plug washer fits Evinrude outboards of 40, 48, and 50 horsepower with a 15 inch shaft, on model years 1993 and up.

Is this washer a direct replacement for OEM part 311598? Yes, EMP 27-00957-1 directly replaces OEM number 311598 and is built to seal the same drain/fill plug location.

What is the 27-00957-1 washer made of? It is a plastic washer, designed as a one-time-use seal for the gearcase drain/fill plug.

How many washers come in a package? 27-00957-1 is sold in a package of 5, enough for multiple gear lube services.

Which drain screw does this washer pair with? This washer is used with the 18-2387 drain screw on applicable Evinrude gearcases.

Should I reuse the old drain plug washer when changing gear lube? No; a plastic drain/fill plug washer like 27-00957-1 should be replaced at each gear lube change since a compressed or worn washer can leak.

How much does the 27-00957-1 washer weigh? The EMP 27-00957-1 washer weighs 0.001 pounds.

Does 27-00957-1 fit outboards with a different shaft length? No; this washer is specified for 40/48/50 HP Evinrude outboards with a 15 inch shaft, model years 1993 and up.

Is 27-00957-1 an OEM or aftermarket part? 27-00957-1 is an EMP aftermarket washer engineered to replace OEM number 311598.

What is included when I order this product? You receive a package of 5 EMP 27-00957-1 plastic drain/fill plug washers.