Sierra Oil Indicator with Washer 18-8369, Replaces 336982, Pack of 5

The Sierra 18-8369 Oil Indicator with Washer is a replacement oil level indicator designed for use in the engine oil system. Each indicator includes an integrated washer, so it installs as a complete unit without needing to source a separate seal. This part is used together with the Sierra 18-1236 Drain Screw as part of the oil monitoring setup.

The 18-8369 is a direct cross-reference for OEM part number 336982, giving boat owners and marine technicians a straightforward replacement option when the original indicator wears out, cracks, or no longer seats properly. It features a machined construction for a precise fit against the drain screw assembly, and its compact size keeps it a low-profile, purpose-built component rather than a universal fitting.

This item is sold as a package of 5 oil indicators, making it a practical option for shops or owners who service multiple engines or want spares on hand. Because it is a small, low-cost wear item that is easy to overlook until it fails, keeping a package in stock helps avoid downtime waiting on a single replacement part.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-8369
• Product Name: Oil Indicator with Washer
• Package Quantity: Pack of 5
• Used With: Sierra 18-1236 Drain Screw
• Exterior Finish: Machined
• Product Dimensions: 0.39 x 0.39 x 0.39 inches
• Weight: 0.06 pounds
• UPC: 808282228439

Fitment

Fitment details for a specific engine model are not specified for this part; it is designed to be used with the Sierra 18-1236 Drain Screw.

Replaces (OEM)

• 336982

Frequently Asked Questions

What does the Sierra 18-8369 oil indicator do? The Sierra 18-8369 is an oil indicator with an integrated washer, installed as part of the engine oil monitoring setup alongside the drain screw assembly.

Does the 18-8369 oil indicator come with a washer? Yes, the 18-8369 is sold as an oil indicator with washer, so each unit installs with its washer already included rather than requiring a separate seal.

What OEM part number does the Sierra 18-8369 replace? It replaces OEM part number 336982, making it a direct cross-reference for that original part.

How many oil indicators are in one package of 18-8369? The 18-8369 is sold in a package of 5 oil indicators.

What drain screw is the 18-8369 oil indicator used with? The 18-8369 oil indicator is used with the Sierra 18-1236 Drain Screw.

How much does the Sierra 18-8369 oil indicator weigh? The Sierra 18-8369 weighs 0.06 pounds.

What are the dimensions of the 18-8369 oil indicator? The 18-8369 measures 0.39 x 0.39 x 0.39 inches.

Is the 18-8369 oil indicator machined? Yes, the 18-8369 has a machined exterior finish.

Can I buy just one 18-8369 oil indicator instead of a package? The 18-8369 is sold as a package of 5 units, not individually.

Is the Sierra 18-8369 an aftermarket replacement for OEM part 336982? Yes, the Sierra 18-8369 oil indicator with washer is manufactured as a replacement for OEM part number 336982.

Do I need the 18-1236 drain screw to use the 18-8369 oil indicator? The 18-8369 oil indicator is designed for use with the Sierra 18-1236 Drain Screw as part of the same assembly.

What is included when I order the Sierra 18-8369? Ordering the 18-8369 gets you a package of 5 oil indicators, each with its washer included.