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JMP JPR-V3000 Seawater Pump – Fits Volvo Penta TAMD/TMD 102-122 Series (Replaces 3829313, 3583112)

Sale price $1,490.09 Regular price $2,384.00
Shipping calculated at checkout.

Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This is a high-quality JMP Marine replacement seawater pump, the JMP JPR-V3000 Seawater Pump – Fits Volvo Penta TAMD/TMD 102-122 Series. It is engineered as a direct, OEM-style fit for various Volvo Penta diesel marine engines, specifically the TAMD/TMD 102, 103, 120, and 122 series.

This unit serves as a direct replacement for Volvo Penta part numbers 3829313, 3583112, 3829312, 866396, and 845189.

  • Offers simple, direct OEM-style installation.
  • Constructed from heavy-duty, marine-grade cast housing for durability.
  • Features an upgraded mechanical seal for superior reliability over traditional lip seals.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number Notes
JMP Marine JPR-V3000 Aftermarket Replacement
Volvo Penta 3829313
Volvo Penta 866396 Old Part Number
Volvo Penta 3583112
Volvo Penta 845189 Old Part Number
Volvo Penta 3829312

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Engine Type OEM Part No.
Volvo Penta TAMD102A Diesel 3829313
Volvo Penta TAMD102D Diesel 3829313
Volvo Penta TAMD103A-A Diesel 3829313
Volvo Penta TAMD120 Diesel 3829313
Volvo Penta TAMD121 Diesel 3829313
Volvo Penta TAMD122A Diesel 3829313
Volvo Penta TAMD122P-A Diesel 3829313
Volvo Penta TAMD122P-B Diesel 3829313
Volvo Penta TAMD122P-C Diesel 3829313
Volvo Penta TMD102A Diesel 3829313
Volvo Penta TMD122A Diesel 3829313

Technical Specs

Product Type
Engine Cooling Seawater Pump
Installation
Direct OEM-Style Replacement
Port Type
2" Flange
Housing Material
Heavy Duty Marine Grade Casting
Shaft Material
3X Series Non-Magnetic Marine Grade
Seal Type
Mechanical Seal (improved over traditional lip seal)
Dimensions (L×W×H)
280 × 190 × 200 mm
Weight
9.8 kg (21.5 lbs)
Impeller Compatibility
JMP 8301-01K
Compatible Volvo Impeller
875814, 845796
Internal Parts Compatibility
Yes (with original Volvo Penta parts)
Recommended Service Kit
Minor: JSM0031, Major: JSK0030 (sold separately)
Manufacturer
JMP Marine
Original Pump Manufacturer
Jabsco

What’s in the Box

  • 1 x JMP Marine Volvo Penta Replacement Engine Cooling Pump (JPR-V3000)

Installation Notes

  1. Ensure the engine is off, cool, and the battery is disconnected. Close the seacock to prevent water ingress.
  2. Place a suitable container below the pump and drain the coolant from the system.
  3. Carefully loosen the hose clamps and remove the intake and outlet hoses from the pump. Note their orientation.
  4. Unbolt the old pump from its mounting bracket on the engine. It may require gentle persuasion to release if seated for a long time.
  5. Thoroughly clean the pump mounting surface on the engine, removing any old gasket material or sealant residue.
  6. Position the new gasket (if supplied) and mount the new pump, ensuring it is correctly aligned.
  7. Hand-tighten the mounting bolts, then torque them to the engine manufacturer’s specifications in a crossing pattern.
  8. Reconnect the intake and outlet hoses and secure them with the clamps.
  9. Refill the cooling system with the appropriate coolant.
  10. Open the seacock, reconnect the battery, and start the engine. Immediately check the pump and hose connections for any leaks.

Troubleshooting & FAQ

How do I confirm this pump fits my specific engine?

Verify your engine model matches one of the models listed in the "Engine & Model Compatibility" table, such as TAMD122A or TMD102A. Also, confirm your existing pump corresponds to one of the OEM part numbers like 3829313.

What makes this JMP pump different from the original OEM pump?

This JMP replacement pump is designed with several enhancements for longevity, including a heavy-duty cast housing and a modern mechanical seal, which provides greater durability compared to the traditional lip seal found in some original pumps.

What are the signs of a failing seawater pump?

Common symptoms of pump failure include engine overheating alarms, visible water leaks from the pump body or weep holes, a noticeable reduction in water flow from the exhaust, and grinding or squealing noises originating from the pump assembly during operation.

How often should the impeller inside the pump be replaced?

Impeller lifespan varies with use and water conditions. As a general rule, inspect the impeller annually and plan to replace it every 1-2 seasons or every 200-300 hours of engine operation to prevent unexpected failure.

Can I use original Volvo Penta parts to service this pump?

Yes, this pump is designed to be fully compatible with original Volvo Penta internal parts, allowing for flexible maintenance and repair options.

What service kits are available for this pump?

Two dedicated service kits are sold separately to maintain this pump: kit JSM0031 for minor service (impeller, gaskets) and kit JSK0030 for major service (including bearings and seals).

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.

Payment & Security

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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