Description
Overview
The Jabsco 18948-0001 Neoprene 65×41 Key-Drive Impeller delivers reliable raw-water cooling for marine engines, and it suits pump housings designed for a 65 mm outer diameter impeller. Because accurate part matching matters, this listing references Argomarine ID J53-538 and focuses on the verified Jabsco dimensions. Consequently, owners can choose with confidence for maintenance or urgent changeouts.
Features
- Neoprene rubber formulation that supports seawater service and priming performance
- 12 flexible blades that sustain steady flow across common engine RPM ranges
- Key-drive hub that transfers torque positively to reduce slip and wear
- Brass insert that improves hub strength and resists corrosion in marine environments
Specifications and Materials
| Attribute | Value |
|---|---|
| Outer diameter (OD) | 65 mm |
| Width / depth | 41 mm |
| Shaft / bore | 16 mm keyed |
| Blade count | 12 |
| Rubber compound | Neoprene |
| Hub / insert | Brass |
| Drive type | Key-drive (slot) |
For official dimensions and identification, see the Jabsco Impeller Selection Table Jabsco Impeller Selection Table
Compatibility and Fitment
Select this impeller when your pump housing accepts a 65 mm OD, 41 mm deep, 12-blade, key-drive design with a 16 mm shaft. Therefore, always compare the old impeller’s OD, width, and hub style before installation. Mention J53-538 during enquiries so our team can confirm fit with your specific pump model. If your service requires fuel or oil resistance, consider a nitrile variant instead.
Compliance and Safety
Follow Jabsco’s maintenance guidance, and replace the impeller on time or at the first sign of cracked blades. Additionally, lubricate the bore and vanes during fitting, rotate the shaft by hand to check clearance, and avoid dry starts. After servicing, run the engine briefly and verify flow at the exhaust outlet.
Marine Applications
Use this impeller in raw-water engine cooling pumps, generator sets, and auxiliary seawater circulation systems. Because neoprene handles water well and primes quickly, it suits the vast majority of cooling circuits on petrol and diesel inboards. Moreover, the keyed hub simplifies shaft alignment during quick turnarounds in the marina or workshop.
Why Choose Argomarine
Argomarine sources OEM-spec components, checks critical dimensions, and supports you with practical advice. As a result, you receive parts that fit first time and keep your vessel operating efficiently. We also ship quickly across Australia to minimise downtime. Explore related cooling spares in our Water Pump & Timing Cover Accessories category for marine cooling pumps and accessories.
