The Jabsco 18948-0001-B is a genuine Jabsco 18948-0001 neoprene impeller kit supplied in plain bulk packaging. It is the same 12-blade, key-drive impeller found in the retail pack, with a 2-9/16 inch diameter, a 1-5/8 inch width and a brass insert bored for a 5/8 inch keyed shaft, so it drops straight into pumps built for the 18948-0001 impeller.
A fresh impeller is the single most important service item on a raw water cooling pump. Hardened, cracked or set blades move less water, run the engine hotter and can shed pieces into the heat exchanger. Replacing the impeller on schedule keeps cooling flow strong and protects the engine, and the neoprene compound is the right choice for fresh and salt water service.
Key Features
- Genuine Jabsco 18948-0001 impeller in bulk packaging
- 12 flexible neoprene blades for strong self-priming suction
- Brass insert with key drive for a secure fit on a 5/8 inch shaft
- Exact Jabsco dimensions for proper sealing against the wear plate
- Suited to engine cooling and fresh or salt water transfer
Applications
- Raw water cooling pumps on marine inboard engines
- Marine generator seawater pumps using the 18948-0001 impeller
- Jabsco 42730-0000 series flexible impeller pumps
- Spare impeller for the boat's onboard parts kit
Specifications
- Part Number: 18948-0001-B
- Packaging: Bulk, single kit
- Impeller Material: Neoprene
- Number of Blades: 12
- Diameter: 2-9/16 in (65 mm)
- Width: 1-5/8 in (41.3 mm)
- Shaft: 5/8 in (16 mm)
- Drive Type: Key drive
- Insert: Brass
Frequently Asked Questions
Q: What is the difference between the -B and -P versions?
Both contain the same Jabsco 18948-0001 impeller. The -B version comes in plain bulk packaging, while the -P version comes in a retail pack.
Q: Should I lubricate the impeller before installing it?
Yes. A light coat of glycerin or a pump-safe lubricant on the blades and pump body makes installation easier and protects the blades during the first dry seconds of startup.
Q: Which direction should the blades face?
Blades should trail in the direction of rotation. If you are reusing a pump body, note the blade direction of the old impeller before removing it.
Q: How long can the pump run dry?
Only a few seconds. Running dry quickly overheats and damages flexible impeller blades, so open the seacock before starting the engine.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct impeller kit.
CLRMarine
