Product Overview
Reliable custom rubber parts for industrial applications
Quick Answer
The Jabsco 920-0001 rubber impeller is a flexible vane pump component for replacement, maintenance service and compatible fluid handling applications. Dimensions, blade profile, hub structure, shaft connection, rubber compound, Shore A hardness, tolerance and packaging must be confirmed by drawing, official specification or physical sample before production.
The Jabsco 920-0001 rubber impeller is a flexible vane pump component used as a replacement reference for compatible pump assemblies. This page does not assume unconfirmed dimensions, material grade, hardness, blade quantity or insert details. Outer diameter, height, shaft connection, blade profile, rubber compound and tolerance should be confirmed by drawing, official specification or physical sample.
Product Overview
The Jabsco 920-0001 Rubber Impeller is an 8-blade flexible Neoprene impeller manufactured as a direct-fit replacement for Jabsco raw-water engine cooling pumps used across a wide range of marine engines. This part number is also listed under the updated designation 920-0001-P, and both are fully cross-referenced and interchangeable in the aftermarket supply chain. It is widely specified as a replacement or equivalent for Volvo Penta, Caterpillar, Cummins, Perkins, Yanmar, and Johnson pump applications, making it one of the most commonly stocked marine impeller part numbers across recreational and light commercial vessel maintenance.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 920-0001 (also listed as 920-0001-P) |
| Material | Neoprene rubber |
| Number of Blades | 8 blades/fins |
| Impeller Diameter | 65 mm (2-9/16″) |
| Impeller Width/Height | 51 mm (2″) — some cross-references list 50.8 mm |
| Shaft Hub Diameter | 16 mm (5/8″) |
| Hub Insert Type | Brass Spline Drive |
| Operating Temperature Range | 7°C to 82°C (45°F to 180°F) |
| Fluid Compatibility | Fresh water, salt water, minor oil/diesel exposure |
What Is the Jabsco 920-0001 Impeller?
The Jabsco 920-0001 is a flexible Neoprene rubber impeller with 8 curved blades mounted on a brass spline-drive hub, designed for use in bronze-bodied flexible impeller pumps that circulate raw seawater or freshwater for marine engine cooling. As the pump shaft rotates, the flexible Neoprene blades deform and re-expand within the pump housing to draw in and discharge cooling water — a self-priming action characteristic of flexible impeller pump design. This impeller is a widely cross-matched reference part number, fitted across numerous Jabsco pump bodies and OEM engine cooling systems from multiple manufacturers.
Cross-Reference & Compatibility
| Brand | Part Number |
|---|---|
| Jabsco | 920-0001, 920-0001-P, 17937-0001 |
| Caterpillar (CAT) | 7C-3286 |
| Cummins | 879194186 |
| Johnson | 09-1028B |
| Perkins | 0460024, 2488031 |
| Sherwood | 18200 |
| Vetus | IMP00301 |
| Volvo Penta | 877061, 877061-2, 801277, 3841697, 21422632 |
| Yanmar | 127610-42200 |
| Ancor (aftermarket) | AN2039 |
Engine applications: Volvo Penta 30, 41, 42, 43, 44, 70 series; Yanmar 4LH series; Styer MO256H45.
Compatible Jabsco pump models: 21140-2401, 21140-2601, 23010-0131, 23430-1641, 29600-1641, 29600-1741, 29630-1001, 29630-1101, 29630-1141, 29630-1201, 29630-1241, 50440-1401, 50540-1001.
Why Neoprene Is Used for This Impeller
- Wide chemical resistance — Neoprene tolerates exposure to fresh water, salt water, and minor amounts of oil or diesel fuel commonly present in engine cooling circuits
- Proven temperature range — rated for continuous service between 7°C and 82°C, matching typical raw-water engine cooling circuit conditions
- Industry-standard flexibility — Neoprene remains the most widely used impeller material across the marine pump industry due to its balance of flexibility, wear resistance, and cost
- Reliable spline engagement — the molded-in brass spline drive insert ensures secure, slip-free torque transfer from the pump shaft without keyway wear
Installation & Maintenance Notes
- Dry-running caution — like all flexible impeller pumps, this impeller must never be run dry, even briefly, as the Neoprene blades can overheat and deform without water lubrication and cooling
- Recommended replacement interval — typically every 1–2 boating seasons, or per engine manufacturer service schedule, to prevent unexpected cooling failure
- Service kit availability — often supplied as a complete kit including a matching gasket set and spline plug for a full service replacement in one part number
- Installation orientation — blade curvature must be installed in the correct rotational direction per the pump housing orientation to ensure proper self-priming function
Applications
- Volvo Penta 30/41/42/43/44/70 series marine engine cooling pumps
- Yanmar 4LH series marine diesel engine cooling pumps
- Caterpillar, Cummins, and Perkins marine engine cooling circuits
- Johnson and Sherwood equivalent raw-water pump applications
- General bronze flexible impeller pump bodies for engine cooling, bilge transfer, and general-purpose water transfer
Custom & OEM Manufacturing Capability
- Material options — NBR, NR, EPDM, Silicone, Neoprene (ACM), HNBR, SBR
- Hardness range — 30–95 Shore A
- Temperature range — -40°C to +300°C depending on compound selection
- Dimensional tolerance — ±0.05 mm
- Hub options — brass spline drive, keyed hub, or custom insert configuration
- Certification — ISO 9001 compliant manufacturing available
- Custom branding — OEM and ODM orders accepted with customer logo and packaging
Why Source from Julong Rubber?
- Marine industry application experience — recreational and commercial vessels
- Full cross-reference matching engineered to Jabsco, Volvo Penta, Caterpillar, Cummins, Perkins, Yanmar, and Johnson dimensional equivalents
- ISO 9001 certified manufacturing and inspection
- Full elastomer range — Neoprene as standard, plus NBR, NR, EPDM, Silicone alternatives
- Precision brass spline hub molding — secure torque transfer, no slip
- Low MOQ with tiered volume pricing
- Fast delivery for stock cross-reference parts
- OEM/ODM capability — custom logo, packaging, and specification accepted
What Information Should Buyers Provide for a Quote?
- Product drawing or physical sample
- Jabsco 920-0001 reference part number
- Pump model and installation position
- Outer diameter
- Overall height
- Hub diameter and hub structure
- Shaft hole or shaft connection detail
- Blade quantity and blade profile
- Insert structure, if applicable
- Dimensions and tolerances
- Rubber material
- Shore A hardness
- Operating temperature
- Contact media
- Rotation speed
- Rotation direction
- Required quantity
- Estimated annual volume
- Compliance requirements
- Packaging requirements
FAQ
Can this impeller be supplied as a Jabsco 920-0001 replacement?
Yes, the product can be reviewed as a replacement reference for Jabsco 920-0001 applications. However, the part number alone is not enough for production approval. Dimensions, blade profile, shaft connection, rubber compound and pump compatibility must be confirmed before manufacturing.
Why are exact dimensions not listed on this page?
Exact dimensions are not listed because no confirmed drawing, official specification or measured sample data has been provided. For rubber impellers, unsupported dimensions can cause installation problems, reduced flow, excessive friction or early blade damage. Confirmed data is required before production.
Can the impeller be manufactured from an old sample?
Yes. A physical sample can be used for reverse engineering when the original drawing is unavailable. The sample should be checked for wear, deformation and blade damage. Critical dimensions, pump chamber clearance and operating conditions should still be confirmed before tooling.
How should buyers select the rubber material?
Rubber material selection depends on the working liquid, temperature, rotation speed, dry-running risk, oil exposure and chemical contact. Buyers should provide the exact media and service conditions. Material selection depends on the application conditions.
Is tooling required for this rubber impeller?
Tooling is usually required for molded rubber impellers with custom blade geometry, hub structure or insert design. Tooling cost depends on the drawing and product structure. Prototype samples can be reviewed before batch production.
Are samples available before bulk production?
Samples are available upon request. Sample preparation depends on the confirmed dimensions, rubber compound, Shore A hardness, insert structure, tooling status and inspection requirements. Please provide a drawing, official specification or physical sample for review.
Request a Custom Quote
Send your Jabsco 920-0001 rubber impeller drawing, official specification, pump model or physical sample for review. Please include dimensions, shaft connection, blade profile, rubber material, hardness, working liquid, temperature, speed, rotation direction, quantity and packaging requirements.
