What is the purpose of a main bearing seal?

A main bearing seal is designed to keep engine oil contained within the crankcase and prevent it from leaking out. It also helps to keep dirt and debris from entering the engine's critical bearing areas.

What does the size specification (1.500" x 2" x .313") refer to?

These measurements refer to the seal's dimensions. The first number is the inside diameter, the second is the outside diameter, and the third is the thickness of the seal itself.

Does this seal come with any installation hardware?

This product is for the seal only. Installation hardware, if required, is typically sold separately. Always refer to the manufacturer's service manual for proper installation procedures.

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Trusted Since 1957

Est. 1957

S&S Cycle 1974+ XL 1.500in x 2in x .313in Left Main Bearing Seal

Specifications

Brand: S&S Cycle
Part #: 31-4060
UPC: 31-4060

S&S Cycle 1974+ XL 1.500in x 2in x .313in Left Main Bearing Seal

Name: S&S Cycle 1974+ XL 1.500in x 2in x .313in Left Main Bearing Seal
Brand: S&S Cycle
Price: 25.20 USD
Availability: InStock

$25.20

On Backorder — Expected to ship by May 7, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 1991-2003 Harley-Davidson XLH1200. This left main bearing seal is crucial for keeping engine oil where it belongs.

Key Features

Fits 1991-2003 Harley-Davidson XLH1200 and XLH883.
Measures 1.500" ID x 2" OD x .313" thick.
Designed to prevent oil leaks from the main bearing area.
From S&S Cycle, a well-known name in Harley-Davidson performance parts.

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Fits these vehicles

Harley-Davidson XLH1200 1991-2003
Harley-Davidson XLH883 1991-2003

Product Details

When you're rebuilding the engine on your 1991-2003 Harley-Davidson XLH1200, ensuring proper sealing is key to a healthy motor. This left main bearing seal from S&S Cycle is designed to keep your engine's vital lubrication system working as it should.

This seal measures 1.500 inches on the inside diameter, 2 inches on the outside diameter, and is .313 inches thick. It's a well-made component that fits right into the specified Harley-Davidson XL models. A good seal prevents oil leaks and contamination, which are critical for the longevity of your engine's internal components.