Jabsco Impeller Kit, 3-3/4 in Diameter x 2-1/2 in Depth, 1 in Shaft Diameter, Nitrile, 9-Blade, Single Flat Drive, Brass Insert
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Overview
The Jabsco 836-0003-P is a nitrile replacement impeller for flexible impeller pumps that use a 9-blade rotor measuring 3-3/4 in (95 mm) in diameter, 2-1/2 in (63.5 mm) wide, with a 1 in (25.4 mm) shaft diameter and a brass insert. It is the size many owners need when servicing bronze flexible impeller pumps used for engine cooling, bilge duty, transfer work, and other general-purpose pumping jobs on board.
The nitrile compound matters when the pump handles water that may carry oil or diesel residue, or other heavily contaminated liquids. That makes this version more relevant where the fluid is not consistently clean, as long as the pump calls for this exact impeller size and material.
Key features
- 9-blade impeller with a 3-3/4 in outside diameter, 2-1/2 in width, and 1 in shaft diameter
- Nitrile construction for pumps that handle water, oily liquids, or contaminated water
- Brass insert at the hub
- Fits many bronze flexible impeller pumps when the blade count, diameter, width, shaft size, and hub details match the original impeller
- Useful as a scheduled service spare for pumps in engine cooling, bilge, transfer, and general onboard pumping service
Compatibility and fit
Before ordering, match the old impeller or pump data to the 9-blade layout, 3-3/4 in outside diameter, 2-1/2 in width, and 1 in shaft diameter. Those measurements are the quickest way to confirm fit, especially when several impellers look similar at a glance but use a different depth or hub arrangement.
This impeller is a good match for owners replacing the same nitrile configuration already specified in their pump, particularly on boats where bilge or transfer water may include oil contamination. For raw-water systems and other clean-water service, the right compound should still be confirmed against the pump requirement before installation.
Installation and maintenance
When it is time to replace the impeller, remove the end cover screws and pull the old impeller by the hub with an impeller puller or pliers. Avoid using screwdrivers against the pump body, since that can mark the housing face and create leak paths at the cover.
Greasing the new impeller before installation helps it slide into the bore and gives it protection during initial prime. Keeping a spare on board is sensible maintenance for any boat that depends on a flexible impeller pump for cooling or fluid transfer.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
Deliveries are handled by trusted carriers such as USPS, UPS, FedEx, and DHL. Estimated arrival times appear at checkout and depend on your location and the service you choose. These are estimates and can be affected by customs or carrier disruptions. A shipping confirmation with a tracking link is emailed when your order ships, and tracking may take up to 24 hours to update. You can also view tracking in your account.
Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.