Flexible Impeller Kit for Volvo Penta, Yanmar and John Deere Marine Engines — Replaces 877061, 875593 and 3841697
Flexible Impeller Kit for Volvo Penta, Yanmar and John Deere Marine Engines — Replaces 877061, 875593 and 3841697 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Flexible Impeller Kit for Volvo Penta, Yanmar and John Deere Marine...
Flexible Impeller Kit for Volvo Penta, Yanmar and John Deere Marine Engines — Replaces 877061, 875593 and 3841697 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket marine flexible impeller kit is intended as a replacement for the raw-water or seawater pump impeller used on selected Volvo Penta, Yanmar and John Deere marine diesel engine applications. Listed application families include Volvo Penta AD, TAMD, KAD, KAMD and D series engines; Yanmar 4LH, 4LHA, 4BY, 6BY and related series; and selected John Deere 4045 and 6068 marine engines.
The impeller is listed as a replacement for multiple OEM and aftermarket references, including Volvo Penta 877061, 875593, 801277, 21951356, 825941 and 3841697; Yanmar 123325-42020, 123325-42021, 127610-42200, 127610-42270 and 120650-42310; JMP 7400-01; Jabsco 920-0001; Johnson 09-1028B; Sherwood 18200; John Deere RE526661 and RE49490; and Doosan 65.06804-0003.
Because impeller dimensions, shaft drives and pump configurations can vary within the same engine family, confirm the existing impeller, pump model, dimensions and reference number before ordering.
- Designed to install in the existing compatible raw-water pump housing.
- Neoprene impeller construction with a brass insert.
- Kit contents include the flexible impeller and application-specific gaskets and O-rings listed below.
Part Number Matrix
The following references are supplied as interchange leads. Confirm the complete pump and engine application before installation.
| Brand | Part Number |
|---|---|
| JMP | 7400-01, 7400-01K |
| Jabsco | 920-0001 |
| Johnson | 09-1028B, 09-1028B-1, 09-1028BT-1 |
| Sherwood | 18200, 18200K |
| Volvo Penta | 877061, 875593, 801277, 21951356, 825941, 3841697 |
| Yanmar | 123325-42020, 123325-42021, 127610-42200, 127610-42270, 120650-42310 |
| John Deere | RE526661, RE49490 |
| Doosan | 65.06804-0003 |
Engine and Model Compatibility
The applications below are listed compatibility examples, not a substitute for checking the exact engine serial range, pump assembly and impeller drive. Model, year, horsepower, stroke and shaft conditions must match the installation being serviced.
| Brand | Model or Series | Rated HP | Stroke | Reference Numbers |
|---|---|---|---|---|
| Volvo Penta | AD31/41/43; TAMD31/41/42; KAD32/42/44; KAMD42/43/44 series | Various | 4-Stroke | 877061, 875593, 3841697 |
| Volvo Penta | D4-225A-E, D4-260A-E, D4-260D-E, D4-300A-E, D4-300D-E | 225–300 | 4-Stroke | 21951356 |
| Volvo Penta | D5A-A T/TA, D7A-A T/TA, D7C-A TA, D7A-B TA, D7C-B TA | Various | 4-Stroke | 877061, 875593, 3841697 |
| Yanmar | 4BY150, 4BY150Z, 4BY180, 4BY180Z; 4BY2-150, 4BY2-150Z, 4BY2-180, 4BY2-180Z; 4BY3-150, 4BY3-180 | 150–180 | 4-Stroke | 123325-42020, 127610-42200, 120650-42310 |
| Yanmar | 4LH-DTE, 4LH-HTE, 4LH-STE, 4LH-TE; 4LHA-DTE(P), 4LHA-DTP, 4LHA-DTZE(P); 4LHA-HTE(P), 4LHA-HTP, 4LHA-HTZE(P); 4LHA-STE(P), 4LHA-STP, 4LHA-STZE(P) | Various | 4-Stroke | 123325-42020, 127610-42200, 120650-42310 |
| Yanmar | 6BY2-220, 6BY2-220Z, 6BY2-260, 6BY2-260Z; 6BY220, 6BY220Z, 6BY260, 6BY260Z; 6BY3-220, 6BY3-260 | 220–260 | 4-Stroke | 123325-42020, 127610-42200, 120650-42310 |
| Yanmar | 6PH-HTE, 6PH-PHE, 6PH-PHME, 6PH-TE, 6PHM-HTE | Various | 4-Stroke | 123325-42020, 127610-42200, 120650-42310 |
| John Deere | 4045DFM50, 4045DFM70, 4045TFM50, 4045TFM75 | Various | 4-Stroke | RE526661, RE49490 |
| John Deere | 6068SFM50, 6068TFM50, 6068TFM75, 6068TFM76 | Various | 4-Stroke | RE526661, RE49490 |
Technical Specifications
- Product Type
- Aftermarket marine flexible impeller kit
- Application
- Replacement impeller for compatible raw-water or seawater pumps
- Impeller Diameter
- 65 mm (2.56 in)
- Impeller Width
- 50 mm (1.98 in)
- Shaft Diameter
- 16 mm (0.625 in)
- Drive Configuration
- Application information lists 7-spline and 12-spline drives; verify the existing pump shaft before ordering
- Blade Count
- 8 blades
- Material
- Neoprene impeller with brass insert
- Weight
- Approximately 0.2 kg (0.45 lb)
What's in the Box
- 1 x JMP Marine flexible impeller, reference 7400-01
- 1 x Gasket, GAK0016
- 1 x Gasket, GAK0062
- 1 x O-ring, ORG0013
- 1 x O-ring, ORG0022
- 1 x O-ring, ORG0067
Some applications do not require every gasket or O-ring supplied in the kit.
Installation Notes
- Close the water-inlet seacock.
- Remove the raw-water pump end-cover screws.
- Remove the cover plate and old gasket.
- Remove the old impeller with pliers or an impeller puller, taking note of the blade orientation.
- Clean the pump housing and inspect it for scoring, corrosion or wear.
- Lubricate the replacement impeller with glycerin or a small amount of dish soap. Do not use petroleum-based lubricants.
- Install the replacement impeller with a twisting motion in the correct rotational direction for the pump.
- Fit the appropriate new gasket or O-ring to the cover plate.
- Reinstall the cover plate and tighten the screws evenly.
- Open the seacock, start the engine and check immediately for water leaks and proper cooling-water flow.
Troubleshooting and FAQ
How do I know if the impeller needs replacement?
Common symptoms include engine overheating at idle or low speed, reduced cooling-water flow from the exhaust outlet, cracked blades and missing blade sections. Inspect the impeller regularly and replace it at the interval recommended for your engine and pump.
Which spline count is correct?
Application information for this replacement lists both 7-spline and 12-spline drive configurations. Confirm the drive on the existing impeller and pump shaft before ordering; the engine model alone may not identify the correct drive.
Can I run the engine without water after installation?
No. Never operate a raw-water pump dry. Water lubricates and cools the neoprene impeller, and even brief dry running can damage the blades and lead to overheating.
Is this an OEM part?
No. This is an aftermarket replacement kit intended to replace the listed OEM and aftermarket references. It is not sold as an original equipment manufacturer component.
What should I verify before ordering?
Compare the complete pump application, reference number, impeller diameter and width, shaft diameter, drive configuration and cover-gasket arrangement with the part being replaced. If any of these details differ, do not rely on the engine family name alone.
Safety and Important Information
- Close the seacock before removing the pump cover and follow the engine manufacturer's service procedures.
- Do not operate the raw-water pump dry.
- Verify the part dimensions, drive configuration and reference numbers before purchase.
- Professional installation is recommended when the pump housing, shaft or cooling system requires inspection.
About Sea Sierra
- Marine Replacement Parts — Replacement components for common marine engine and cooling-system applications.
- Application-Focused Selection — Compare the part reference and installation details before ordering.
- Support for Your Repair — Contact support with your engine, pump and existing impeller information when application details need to be checked.
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