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Impeller – Fits Volvo Penta, Jabsco, Johnson & Yanmar (Replaces 21213660, 1210-00)

Sale price $19.50 Regular price $31.00
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 marine water pump impeller is a direct-fit replacement for a wide range of gasoline and diesel engines, including Volvo Penta (3.0L-8.2L, 1993–2005), Yanmar (3JH/4JH series), and Jabsco (1210-00 pumps). Engineered for durability and efficient cooling, it ensures your engine maintains optimal operating temperature.

It interchanges with numerous part numbers, including Volvo 21213660, Jabsco 1210-0001-P, Johnson JOH09-1027B, MerCruiser 47-891801, and Perkins 24880190.

  • Designed for direct-fit installation.
  • Constructed from durable neoprene with a solid brass insert.
  • Features a 12-spline drive for secure engagement.

Part Number Matrix

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

Brand Part Number
Volvo 21213660
Volvo 21213650
Volvo 21951348
Volvo 3862567
Volvo 860203
Jabsco 1210-0001-P
Johnson JOH09-1027B
MerCruiser 47-891801
Perkins 24880190
OMC 3862567
Vetus IMP00201
Onan 08-21-1201

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Volvo Penta Fitment: Compatible with most V6 and V8 gas engines from 1993 to 2005 using crank-driven sea water pumps.

Yanmar Fitment: Broadly fits 3JH and 4JH series marine diesel engines.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta AQ 430, 500, 570 4.3, 5.0, 5.7 4-Stroke 1993 & Below 825940, 860203 Bracket Mounted
Volvo Penta 3.0L - 8.2L 3.0-8.2 4-Stroke 1994–2000 3862281 Splined Crank Mount Early
Volvo Penta 4.3/5.0/5.7/5.8/7.4/8.2 4.3-8.2 4-Stroke 2000–2005 21213660, 21951348 Crank driven sea water pumps
Brand Model Notes
Yanmar 3JH2 (E, L, TCE), 3JH25A, 3JH3 (E-YEU-E), 3JHAE, 3JH5AE, 3JH5E Compatible with 3JH Series
Yanmar 4JH2-DTE, -E, -HTE, -TE, -UTE Compatible with 4JH2 Series
Yanmar 4JH3-HTE, -TE, -DTE Compatible with 4JH3 Series
Yanmar 4JH4E, -AE, 4JH5E, 4JHE, 4JH-HTE, -HTZ, -TE, -TZ Compatible with 4JH4/5 Series
Jabsco Various Water pump impellers (Replaces 1210-0001-P)
Johnson Various Water pump impellers (Replaces JOH09-1027B)
MerCruiser Various Water pump impellers (Replaces 47-891801)
Perkins Various Water pump impellers (Replaces 24880190)
Vetus Various Water pump impellers (Replaces IMP00201)
Onan Various Water pump impellers (Replaces 08-21-1201)
Sole Diesel Various Compatible per source listings

Technical Specs

Product Type
Marine Water Pump Impeller
Installation
Direct Fit
Housing Material
Neoprene with Brass Insert
Width
31.5 mm (1-1/4")
Diameter
57 mm (2-1/4")
Shaft Diameter
16 mm (5/8")
Weight
0.1 kg (0.22 lb)
Fitting Type
12-Spline Drive (K-type bushing)
Blade Count
12
Screw Count
4
Other Technical Attributes
CEF Equivalent: CEF500107T

What’s in the Box

  • 1 x Impeller

Installation Notes

  1. Shut off the engine and close the water intake seacock.
  2. Remove the water pump cover plate screws and take off the cover.
  3. Use needle-nose pliers or an impeller puller tool to grip the hub of the old impeller and pull it straight out.
  4. Clean the inside of the pump housing and inspect it for scoring or damage.
  5. Lightly lubricate the new impeller and housing interior with water-resistant grease or dish soap.
  6. Install the new impeller by pushing it in while rotating the shaft in its normal direction of operation to bend the blades correctly.
  7. Reinstall the pump cover with a new gasket (if required) and tighten the screws evenly. Open the seacock before starting the engine.

Troubleshooting & FAQ

How do I know if this impeller fits my specific engine?

The best way to confirm fitment is to match your old part number to one listed in our Part Number Matrix. You can also check your engine model and year against the compatibility tables. When in doubt, compare the dimensions (Diameter, Width, Shaft Size) to your existing impeller.

What are the common signs of a failing impeller?

Symptoms include engine overheating at idle or low speeds, a reduced stream of water from the exhaust outlet, and visible cracks or missing blades on the old impeller upon inspection.

How often should I replace my water pump impeller?

As a general maintenance rule, it's recommended to inspect your impeller annually and replace it every 1-2 years or every 200-300 operating hours, whichever comes first. Usage in silty or sandy water may require more frequent replacement.

Is this impeller resistant to fuel or oil?

This impeller is made of neoprene, which is designed for pumping water. It has moderate resistance to oil but should not be exposed to fuel or heavy oil concentrations, which can cause it to swell or degrade. For high-oil environments, a nitrile impeller is recommended.

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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