Raw Water Pump – Fits Volvo Penta TAMD61/71/100/102/120/121/122 & TMD/TD Marine Engines (Replaces 3829311, 846354, 822787)
Raw Water Pump – Fits Volvo Penta TAMD61/71/100/102/120/121/122 & TMD/TD Marine Engines (Replaces 3829311, 846354, 822787) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Raw Water Pump – Fits Volvo Penta TAMD61/71/100/102/120/121/122 & TMD/TD Marine Engines (Replaces 3829311, 846354, 822787) is backordered and will ship as soon as it is back in stock.
Product Details
This is an aftermarket Raw Water Pump that fits Volvo Penta TAMD61/71/100/102/120/121/122 & TMD/TD series marine diesel engines. It serves as a direct-fit replacement for engine-mounted seawater cooling systems on models including TAMD61A/B, TAMD71A/B, TMD100C, TAMD102A/D, and TMD122A, ensuring reliable cooling performance.
It directly replaces Volvo Penta part numbers 3829311, 846354, and 822787, as well as JMP Marine JPR-V2000 and Johnson Pump 10-21915-01 equivalents.
- Engine-mounted for straightforward installation.
- Features a heavy-duty bronze housing for marine-grade durability.
- Includes a high-performance mechanical seal.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Volvo Penta | 846354 | 3829311 | |
| Volvo Penta | 822787 | Alternative Part Number | |
| Volvo Penta | 3829311 | Current Part Number | |
| JMP Marine | JPR-V2000 | ||
| Johnson Pump | 10-21915-01 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Volvo Penta engines, be aware of serial number breaks. For example, this part fits TAMD61A, TAMD71A, and TAMD71B engines with serial numbers up to 1101044435.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Volvo Penta | TAMD61A | 4-Stroke | 3829311 | SN-1101044435 |
| Volvo Penta | TAMD71A | 4-Stroke | 3829311 | SN-1101044435 |
| Volvo Penta | TAMD71B | 4-Stroke | 3829311 | SN-1101044435 |
| Volvo Penta | TMD100C | 4-Stroke | 3829311 | |
| Volvo Penta | TD100CHC | 4-Stroke | 3829311 | |
| Volvo Penta | TMD102A | 4-Stroke | 3829311 | |
| Volvo Penta | TAMD102A | 4-Stroke | 3829311 | |
| Volvo Penta | TAMD102D | 4-Stroke | 3829311 | |
| Volvo Penta | TMD120B | 4-Stroke | 3829311 | |
| Volvo Penta | TD120BHC | 4-Stroke | 3829311 | |
| Volvo Penta | TD121CHC | 4-Stroke | 3829311 | |
| Volvo Penta | TMD121C | 4-Stroke | 3829311 | |
| Volvo Penta | TAMD121C | 4-Stroke | 3829311 | |
| Volvo Penta | TAMD121D | 4-Stroke | 3829311 | |
| Volvo Penta | TMD122A | 4-Stroke | 3829311 |
Technical Specs
- Product Type
- Raw Water Pump (Seawater Cooling Pump)
- Installation
- Engine Mounted
- Connection
- 1-1/2" Flange (Inlet and Outlet)
- Housing Material
- Bronze (Heavy Duty Marine Grade Casting)
- Dimensions
- 34.0 × 23.5 × 23.5 cm (13.4 × 9.3 × 9.3 in) [L×W×H]
- Weight
- 8.41 kg (18.50 lbs)
- Shaft Material
- Marine Grade (Non-Magnetic)
- Compatible Impeller Kit
- 09-1029B, 21730344 (Old 875736)
- Other Technical Attributes
- Mechanical Seal
What’s in the Box
- 1 x Raw Water Pump (Replaces 3829311)
Installation Notes
- Shut off the engine and close the seacock/sea valve to stop water flow.
- Drain the existing cooling system by opening the pump's drain plugs.
- Loosen and remove the hoses connected to the pump inlet and outlet.
- Unbolt the old pump from its mounting bracket on the engine.
- Clean the mounting surface and hose connections of any old gasket material or debris.
- Mount the new pump, ensuring a secure fit. Torque bolts to manufacturer specifications.
- Reconnect the inlet and outlet hoses and tighten the clamps.
- Open the seacock, start the engine, and immediately check for leaks at all connections.
Troubleshooting & FAQ
How do I know if this pump fits my specific engine?
This pump is designed for a wide range of Volvo Penta models. The most reliable way to confirm fitment is to match your existing pump's part number to one of the direct replacement numbers listed (e.g., 3829311, 846354). Additionally, check the compatibility table for your engine model. Pay close attention to any serial number notes, as they indicate specific production ranges.
What are common signs of a failing raw water pump?
Symptoms of a worn or failing pump include engine overheating at idle or normal speeds, reduced water flow from the exhaust, visible water leaks from the pump body or seals, and unusual grinding or whining noises from the pump assembly.
How often should the pump or its impeller be serviced?
While the pump housing is built for longevity, the flexible impeller inside is a wear item. We recommend inspecting the impeller at least once a year and replacing it as a preventative measure or immediately if you notice cracks, stiffness, or significant wear. Pump seals should be inspected at the same time for any signs of leaking.
Is an impeller included with this pump?
No, this listing is for the raw water pump assembly only. To complete the installation, you will need to purchase a compatible impeller kit separately. This pump uses impeller kits 09-1029B or 21730344 (replaces older 875736).
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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