O-ring toilet – code: 43990-0066 (31043066) – Jabsco

Jabsco Toilet O-ring – original spare part for onboard toilet maintenance

The’Jabsco Toilet O-ring with code 43990-0066 (supplier code 31043066) is a sealing component designed for the maintenance of Jabsco marine toilets. In an onboard sanitary system, sealing elements are essential to preserve the system's efficiency and keep connections subject to wear over time in order.

This spare part is intended for scheduled replacement or restoration interventions, when you want to return the toilet to the operating conditions specified by the manufacturer. Choosing the correct code is essential to avoid incompatibilities and to work quickly and cleanly during maintenance operations.

Product features and details

The product is identified by the following references:

• Description: Toilet O-ring
• Code: 43990-0066
• Supplier code: 31043066
• Supplier: Jabsco Marine Italia s.r.l.

Declared compatibility

According to the available information, the O-ring is compatible with Jabsco toilets of the following series:

• 37010
• 37045
• 37245
• 37055
• 37255
• 37075
• 37275

Note: for a precise check, it is advisable to always compare the code 43990-0066 (or 31043066) with the exploded spare parts diagram or the documentation of the toilet installed onboard.

Role of the O-ring in the toilet system

The O-ring is a sealing element used in various points of the toilet assembly (depending on the model and configuration). In general, it helps to:

• maintain the estate between mated components;
• reduce the risk of seepage or leaks at the joints;
• support orderly maintenance by replacing a component subject to wear.

Typical onboard applications

This spare part is suitable for nautical contexts where Jabsco toilets of the indicated series are present. It can be used in activities of:

• routine maintenance of the toilet (inspection and replacement of seals);
• restoration in case of suboptimal sealing or aged components;
• service interventions during storage or refit of the sanitary system.

In the nautical field, having the correct spare part available helps reduce downtime and allows for targeted intervention without resorting to improvised solutions.

Advantages

• Spare part identified by code: the presence of codes 43990-0066 and 31043066 facilitates the identification of the correct component.
• Consistency with Jabsco components: solution recommended for those who wish to keep the toilet compliant with the configuration provided by the manufacturer.
• Maintenance support: useful for scheduled interventions and for managing wear parts.
• Declared compatibility with specific series: clear reference to series 37010, 37045, 37245, 37055, 37255, 37075, 37275.

Usage and operational notes

Tips for choosing the replacement

To purchase with confidence:

• check the series of the installed Jabsco toilet (among those listed);
• check the spare part code shown on documentation or exploded view: 43990-0066 / 31043066;
• if you are replacing an existing component, compare the references of the removed spare part with those of the product.

General maintenance instructions

When replacing an O-ring, it is good practice to work carefully to avoid damage to mating surfaces and to ensure correct assembly. In the absence of specific model instructions, always follow the procedures provided by the toilet manufacturer and good onboard maintenance practices.

When to consider replacement

Replacing a seal can be considered during scheduled maintenance or when typical signs of wear on elastomer components are detected (e.g., hardening or deformation). Periodic inspection of the sanitary system helps keep the installation in order and prevents more invasive interventions.

FAQ – Frequently Asked Questions

Is this O-ring compatible with my Jabsco toilet?

It is declared compatible with Jabsco toilets series 37010, 37045, 37245, 37055, 37255, 37075, and 37275. For confirmation, compare code 43990-0066 (or 31043066) with the spare parts exploded view of your model.

What is the difference between codes 43990-0066 and 31043066?

43990-0066 is the spare part code indicated for the Toilet O-ring, while 31043066 is the associated supplier product code. Both help identify the same item during ordering and verification.

In which cases is it advisable to replace the Toilet O-ring?

It is generally replaced during routine maintenance or when the seal is no longer optimal. For specific indications for your model, refer to the Jabsco documentation.

Does this product include other components or a gasket kit?

From the available information, the product is indicated as a single Toilet O-ring (code 43990-0066 / 31043066).

How can I be sure to order the correct replacement part?

Check the toilet series (among those indicated) and verify that the spare part code corresponds to 43990-0066 or 31043066 on the documentation or the exploded spare parts diagram. In case of doubt, it is useful to identify the exact model of the installed toilet.