SKU: 84062161035

Drive Belt for MerCruiser, Volvo Penta, OMC 17HP-350HP Models (57-74271Q)

Sale price$19.75 Regular price$21.95
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Description

Drive Belt for MerCruiser, Volvo Penta, OMC 17HP-350HP Models (57-74271Q)Drive Belt Fits MerCruiser, Volvo Penta, OMC 17HP 350HP (Replaces 57 74271Q, 966903) This high quality aftermarket drive belt is engineered for reliable performance in a wide range of MerCruiser, Volvo Penta, and OMC 4 stroke marine engines, from 17HP to 350HP. It serves as a direct replacement component, ensuring proper fit and function for various alternator, power steering, and sea water pump applications. This belt directly replaces MerCruiser

Drive Belt – Fits MerCruiser, Volvo Penta, OMC 17HP-350HP (Replaces 57-74271Q, 966903)

This high-quality aftermarket drive belt is engineered for reliable performance in a wide range of MerCruiser, Volvo Penta, and OMC 4-stroke marine engines, from 17HP to 350HP. It serves as a direct replacement component, ensuring proper fit and function for various alternator, power steering, and sea water pump applications.

This belt directly replaces MerCruiser part numbers 57-68038, 57-74271Q, 57-74271T, 57-77274, 68038, 74271, 74271T, 77274A1; Volvo Penta part numbers 960281, 966903; and OMC part numbers 0509306, 0509308.

  • Designed for a direct, hassle-free replacement of your original OEM belt.
  • Constructed from durable materials to withstand the harsh marine environment.
  • Backed by a 1-year warranty against manufacturing defects for peace of mind.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Brand Part Number
MerCruiser 57-68038 / 57-74271Q / 57-74271T / 57-77274 / 68038 / 74271 / 74271T / 77274A1
Volvo Penta 960281 / 966903
OMC 0509306 / 0509308

Compatible Engine Models

Confirm your engine model/year in the table below. For MerCruiser owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Brand Model Stroke Years OEM Part No. Notes
MerCruiser 175/185/4.3L 4-Stroke 1985-92 57-74271Q Ser: A331455-D714106
MerCruiser 898 W/O HIGH MT P/S 4-Stroke 1977-84 57-74271Q Ser: 4762210-6218461
MerCruiser 898 W/ HIGH MT P/S 4-Stroke 1977-84 57-74271Q Ser: 4762210-6218461
MerCruiser 898/200/5.0L 4-Stroke 1985-95 57-74271Q Ser: 6218462-F600999
MerCruiser 205 4-Stroke 1985-91 57-74271Q Ser: A331455-D714369
MerCruiser 225 4-Stroke 1973-74 57-74271Q Ser: 3385721-4166999
MerCruiser 228 W/O HIGH MT P/S 4-Stroke 1977-82 57-74271Q Ser: 4765100-6218461
MerCruiser 228 W/ HIGH MT P/S 4-Stroke 1977-82 57-74271Q Ser: 4765100-6218461
MerCruiser 228/230/5.0L 4-Stroke 1983-95 57-74271Q Ser: 6218462-F600999
MerCruiser 228/230/5.0L MIE 4-Stroke 1978-87 57-74271Q Ser: 4929030-B788151
MerCruiser 233 4-Stroke 1975-77 57-74271Q Ser: 4173000-4902304
MerCruiser 250 4-Stroke 1977 57-74271Q Ser: 4768000-4908849
MerCruiser 255 MIE 4-Stroke 1977-78 57-74271Q Ser: 4498701-4924564
MerCruiser 255/260/5.7L MIE & Ski 4-Stroke 1978-86 57-74271Q Ser: 4924565-B522505
MerCruiser 260/5.7L MIE & Ski 4-Stroke 1987-93 57-74271Q Ser: B522506-F024999
MerCruiser 260 W/HM P/S 4-Stroke 1978-82 57-74271Q Ser: 4908850-6218461
MerCruiser 260 W/LM P/S 4-Stroke 1978-82 57-74271Q Ser: 4908850-6218461
MerCruiser 260/5.7L 4-Stroke 1983-95 57-74271Q Ser: 6218462-F600999
MerCruiser 350 MAG 4-Stroke 1986-95 57-74271Q Ser: A635178-F600999
MerCruiser 330 4-Stroke 1977-81 57-74271Q Ser: 4623115-6083144
MerCruiser 340 (7.4L) 4-Stroke 1981-92 57-74271Q Ser: 5889914-D715493
MerCruiser 350 MIE 4-Stroke 1976 57-74271Q Ser: 4501641-4623109
Volvo Penta MD17C 4-Stroke 966903 Alt
Volvo Penta Various Models 4-Stroke 966903/960281 Sea water pump applications
OMC 0509306/0509308

Technical Specifications

Product Type Drive Belt
Installation Direct OEM replacement
Color Black
Warranty 1-year against manufacturing defects

Package Contents

1 x Drive Belt (Replaces 57-74271Q / 966903)

Installation Guide

  1. Safety First: Ensure the engine is completely cool and turned off. Disconnect the boat's battery.
  2. Locate the Belt: Identify the existing drive belt and its path around the engine pulleys. Taking a photo can be helpful.
  3. Release Tension: Use the appropriate tool to loosen the idler or tensioner pulley, releasing tension from the belt.
  4. Remove Old Belt: Carefully slide the old belt off all pulleys.
  5. Inspect Pulleys: Before installing the new belt, spin each pulley by hand. Check for wobble, roughness, or signs of wear.
  6. Route New Belt: Following your photo or the engine diagram, route the new belt around the pulleys, ensuring it sits correctly in the grooves.
  7. Apply Tension: Carefully re-engage the tensioner to apply the correct amount of tension to the new belt. Do not overtighten.
  8. Final Check: Reconnect the battery. Briefly start the engine to ensure the belt tracks properly and operates smoothly without noise.

Troubleshooting & FAQ

How can I be sure this belt fits my MerCruiser engine?
The most reliable method is to match your engine's model and serial number to the ranges listed in our compatibility table. The serial number is critical for confirming the correct fitment for MerCruiser engines.

My engine isn't on the list, but my old belt's part number matches. Will it fit?
Yes. If your current belt has one of the part numbers listed in our cross-reference section (e.g., 57-74271Q or 966903), this product is designed as a direct replacement.

What are the signs that my drive belt needs to be replaced?
Common indicators of a failing belt include loud squealing or chirping noises from the engine, visible cracks or fraying on the belt's surface, and inconsistent performance of belt-driven components like the alternator or water pump.

How often should I inspect my drive belt?
Regular visual inspection is recommended during routine engine maintenance. Look for glazing, cracks, or contamination from oil. We suggest replacing it based on visible wear or according to your engine manufacturer's recommended service intervals.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

  • Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
  • This product is an aftermarket replacement part and is not an OEM component.
  • Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

  • Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
  • Fast Global Shipping: Free delivery worldwide in 5–15 days.
  • Direct from Manufacturer: Competitive pricing without compromising quality.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 84062161035

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Nightowl
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Dogs loved them, but gone very quickly
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Reviewed in the United States on February 27, 2026
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Michael O'Neal-Petterson
Carnegie, US
★★★★★ 3
Expensive for What You Get
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My dogs love chews and I like to try different kinds. I thought they would be longer lasting since they are braided and turkey tendon. These come in a small bag with just a few chews. The chews aren't very big either. They are chewy but not so much that they take a while to eat. I gave one to my 36 lb labradoodle and he finished it in a couple minutes - so it isn't a long-lasting treat at all. At this price point, I would expect more treats or something that lasts a while. My dog loved these but I expect more bang for my buck.
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Reviewed in the United States on December 31, 2025
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Seri Lynn
Draper, US
★★★★★ 4
Great braided dog snacks, good ingredients - cost a bit much for the number you get
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I ordered these Chicken flavored Turkey Tendon Braided Sticks for my three medium sized dogs. I had hoped these would last a little while so gave them one each (there was only like 6 in the pack), but they gobbled them down before I even realized it. They really loved them. I would love to get them these as a special treat every now and again, but they're just too expensive no longer than they last. I know that they're quality treats, made with good ingredients and that really matters, still for no more than you're getting I feel they should cost about a third less. At this rate they're about $3 a piece, and I could get more of some other treat for that price. But if you don't care about the pricing and want only the best for you dogs, then this would be a perfect choice.
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Reviewed in the United States on January 5, 2026
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Karie Watterson
Phoenix, US
★★★★★ 5
Dog chew treat
Flavor Name: Braided Stick (Chicken), Flavor Name: Braided Stick (Chicken)
​I recently purchased these Turkey Tendon Braided Sticks for my dog, and they have been a huge hit. Here are a few reasons why we both liked them: ​High Engagement: My dog was immediately interested and stayed busy with the chew. ​Healthy Ingredients: I appreciate that they are a Turkey Tendon Recipe, which feels like a much healthier alternative to some other chews on the market. ​Quality Design: The braided texture seems to help with the chewing experience and likely helps keep teeth clean. ​I will definitely be buying these again. If you're looking for a treat that is both enticing and made from good ingredients, I highly recommend giving these a try!
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Reviewed in the United States on January 3, 2026
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Amazon Customer
Alexandria, US
★★★★★ 4
My Dog Loves Them, But They Don’t Last Long
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