V-Belt (Sea Water Pump) – Fits MerCruiser, Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L, 8.2L (Replaces 57-13457T, 3853368)
V-Belt (Sea Water Pump) – Fits MerCruiser, Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L, 8.2L (Replaces 57-13457T, 3853368) 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.
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V-Belt (Sea Water Pump) – Fits MerCruiser, Volvo Penta 4.3L, 5.0L, ...
V-Belt (Sea Water Pump) – Fits MerCruiser, Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L, 8.2L (Replaces 57-13457T, 3853368) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket V-Belt (Sea Water Pump) is designed for a reliable fit on a wide range of MerCruiser and Volvo Penta engines. It is compatible with MerCruiser 4.3L V6, 5.0L V8, 5.7L V8, 7.4L V8, and 8.2L V8 models manufactured between 1981 and 1997, where it drives the seawater pump. It also fits various Volvo Penta 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L engines equipped with V-belt systems.
This belt is a direct interchange for Mercury part numbers 57-13457T and 13457Q, Volvo Penta 3853368, Sierra 18-15290, and JLM Marine 57-13457.
- Application: Designed for the sea water pump drive on most compatible engines.
- Installation: Mounts to the external engine accessory drive.
- Material: Constructed from durable rubber with fiber reinforcement for longevity.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Mercury | 57-13457T | 13457Q | |
| Mercury | 13457Q | Current OEM part number | |
| Volvo Penta | 3853368 | ||
| Sierra | 18-15290 | Aftermarket Interchange | |
| JLM Marine | 57-13457 | Aftermarket Interchange |
Engine & Model Compatibility
Confirm your engine model and year in the table below to ensure fitment. Because models can vary, we recommend comparing your old part to our images and specifications.
For MerCruiser applications: This belt is typically used for the seawater pump drive. Please verify your engine model and serial number range (where provided) for an exact match.
For Volvo Penta applications: This belt is commonly used for the alternator or power steering pump, depending on the specific model. Visual confirmation against your existing belt is recommended.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| MerCruiser | 4.3L (GEN II) (2 BBL.) GM 262 V-6 | 180 | 4-Stroke | 1996 | 57-13457T/13457Q | 0F601127 THRU 0F802999 |
| MerCruiser | 4.3LX (GEN II) (4 BBL.) GM 262 V-6 | 190 | 4-Stroke | 1996 | 57-13457T/13457Q | 0F601127 THRU 0F802999 |
| MerCruiser | 230 MIE (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1987–1995 | 57-13457T/13457Q | 0B522506 THRU 0B788151 |
| MerCruiser | 260 MIE GM 350 V-8 | 260 | 4-Stroke | 1987 | 57-13457T/13457Q | 0B522506 THRU 0B788196 |
| MerCruiser | 5.0L MIE (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1987–1995 | 57-13457T/13457Q | 0B522506 THRU 0B788151 |
| MerCruiser | 5.7L MIE GM 350 V-8 | 260 | 4-Stroke | 1988–1993 | 57-13457T/13457Q | 0B788197 THRU 0F024999 |
| MerCruiser | 5.7L MIE GM 350 V-8 | 260 | 4-Stroke | 1994–1995 | 57-13457T/13457Q | 0F025000 THRU 0F622099 |
| MerCruiser | 5.7L MIE GM 350 V-8 | 260 | 4-Stroke | 1994–1995 | 57-13457T/13457Q | 0F622151 THRU 0F746099 |
| MerCruiser | 5.7L MIE GM 350 V-8 | 260 | 4-Stroke | 1996 | 57-13457T/13457Q | 0F622100 THRU 0F622150 |
| MerCruiser | 5.7L MIE GM 350 V-8 | 260 | 4-Stroke | 1996 | 57-13457T/13457Q | 0F746100 THRU 0K040306 |
| MerCruiser | 7.4L MIE MPI (LH) GEN. VI GM 454 V-8 | 310 | 4-Stroke | 1996–1997 | 57-13457T/13457Q | 0F820104 THRU 0K999999 |
| MerCruiser | 340 MIE W/B/W GM 454 V-8 | 340 | 4-Stroke | 1981–1987 | 57-13457T/13457Q | 5889914 THRU 0B788365 |
| MerCruiser | 8.2L MIE MPI (LH) GEN. VI GM 502 V-8 | 385 | 4-Stroke | 1996–1997 | 57-13457T/13457Q | 0F819620 THRU 0K999999 |
| MerCruiser | 200 (2 BBL.) GM 305 V-8 | 200 | 4-Stroke | 1987 | 57-13457T/13457Q | 0B525982 THRU 0B774444 |
| MerCruiser | 230 (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1987 | 57-13457T/13457Q | 0B525982 THRU 0B773739 |
| MerCruiser | 260 (4 BBL.) GM 305 V-8 | 260 | 4-Stroke | 1987 | 57-13457T/13457Q | 0B525982 THRU 0B773739 |
| MerCruiser | 350 MAG. ALPHA GM 350 V-8 | 260 | 4-Stroke | 1987–1995 | 57-13457T/13457Q | 0B525982 THRU 0F600999 |
| MerCruiser | 5.0L (2 BBL.) GM 305 V-8 | 200 | 4-Stroke | 1988–1995 | 57-13457T/13457Q | 0B774445 THRU 0F600999 |
| MerCruiser | 5.0LX (4 BBL.) GM 305 V-8 | 220 | 4-Stroke | 1988–1995 | 57-13457T/13457Q | 0B773740 THRU 0F600999 |
| MerCruiser | 5.7L (2 BBL.) GM 350 V-8 | 260 | 4-Stroke | 1996 | 57-13457T/13457Q | 0F601000 THRU 0K001526 |
| MerCruiser | 5.7L GM 350 V-8 | 260 | 4-Stroke | 1988–1995 | 57-13457T/13457Q | 0B525982 THRU 0F600999 |
| Volvo Penta | 4.3L Engines | 190–205 | 4-Stroke | 1986–2014 | 3853368 | Alternator drive belt on various models |
| Volvo Penta | 5.0L Engines | 220–270 | 4-Stroke | 1983–1995 | 3853368 | Alternator drive belt on various models |
| Volvo Penta | 5.7L Engines | 260–300 | 4-Stroke | 1987–2000 | 3853368 | Alternator drive belt on various models |
| Volvo Penta | 7.4L Engines | 310–340 | 4-Stroke | 1981–1995 | 3853368 | Power steering belt on various models |
| Volvo Penta | 8.2L Engines | 380–420 | 4-Stroke | 1990–1997 | 3853368 | Power steering belt on various models |
Technical Specs
- Product Type
- V-Belt (Sea Water Pump Drive Belt)
- Installation
- External Engine Accessory Drive
- Effective Length
- 29.64 inches (753 mm)
- Top Width
- 0.5 inches (13 mm)
- Application
- Sea Water Pump Drive on Most Applications
- Belt Type
- V-Belt
- Material
- Rubber with Fiber Reinforcement
- Color
- Black
- Operating Temperature
- -40°C to 118°C (-40°F to 244°F)
- Warranty
- 1 Year (Aftermarket)
What’s in the Box
- 1 x V-Belt (Replaces 57-13457T/13457Q, 3853368)
Installation Notes
- Safety First: Disconnect the battery and ensure the engine is cool before beginning work.
- Release Tension: Locate the belt tensioner for the old belt. Loosen the tensioner pulley bolt or use a breaker bar to release the tension on the belt.
- Remove Old Belt: Carefully slide the old V-belt off the pulleys. Note the routing path.
- Verify Fitment: Compare the new belt with the old one to confirm the length and width match.
- Install New Belt: Route the new belt around the pulleys, following the correct path. Ensure it is properly seated in all pulley grooves.
- Apply Tension: Re-engage the tensioner to apply the correct tension to the new belt. Consult your engine's service manual for specific tension values (typically, about 1/2 inch of deflection).
- Final Checks: Once tensioned, tighten any bolts you loosened. Reconnect the battery and briefly start the engine to check for proper belt tracking and listen for any unusual noises.
Troubleshooting & FAQ
How do I know if this is the right belt for my engine?
The best way is to confirm your engine model and year are listed in our compatibility table. Additionally, you can cross-reference your existing belt's part number with the ones listed in our Part Number Matrix. Visually comparing the length and width to the technical specs is also a a good final check.
What are the signs of a failing water pump V-belt?
Common signs include high-pitched squealing noises (especially on startup), visible cracks or fraying on the belt's surface, a glazed or shiny appearance on the sides, or a noticeable loss of tension. An overheating engine can also be a symptom of a failed or slipping sea water pump belt.
How often should I replace my engine's V-belts?
There is no fixed interval, as it depends on engine hours, operating conditions, and exposure to the elements. We recommend a thorough visual inspection at least once a year and proactive replacement every 3-5 years or whenever signs of wear become apparent.
Is this belt different from an automotive V-belt?
Yes. While they may look similar, marine-grade belts are constructed with materials designed to withstand the harsh marine environment, including exposure to water, salt, oil, and higher under-cowling temperatures. Using an automotive belt can lead to premature failure.
What is the difference between a V-Belt and a serpentine belt?
This is a V-Belt, which has a classic trapezoidal (V-shaped) profile and typically drives one or two accessories. A serpentine belt is a flat, multi-ribbed belt that "snakes" its way around many pulleys to power multiple accessories at once. They are not interchangeable.
My engine model isn't listed, but the part number matches. Will it fit?
If your engine's service manual specifies a part number that matches a cross-reference in our Part Number Matrix (like 57-13457T or 3853368), it is very likely the correct part. However, we always recommend verifying the physical dimensions (length and width) against your old belt before installation.
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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