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Straight Fitting Kit – Fits Volvo Penta/OMC Engines (Replaces 192154, 479956, 818923, 980532, 981293)

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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 Straight Fitting Kit is designed for a precise fit on a range of Volvo Penta and OMC marine engines. It is compatible with Volvo Penta V6 4.3L engines since 1991, V8 5.0-5.7L engines since 1990, and V8 7.4-8.2L engines since 1991. It also fits OMC V6 4.3L, V8 5.7L, and V8 7.4/8.2L engines since 1990/1991.

This kit serves as a direct replacement for Volvo Penta part numbers 192154, 479956, 818923, 980532, and 981293, as well as aftermarket equivalents like GLM 13982 and Sierra AM479956.

  • Installs as a direct replacement for the original fitting.
  • Compatible with both gasoline and diesel fuel systems.
  • Features a standard hose connection for secure installation.

Part Number Matrix

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

Brand Part Number
Volvo Penta 192154
Volvo Penta 479956
Volvo Penta 818923
Volvo Penta 980532
Volvo Penta 981293
GLM 13982
Sierra AM479956

Engine & Model Compatibility

Confirm your engine model and year in the tables below.

Volvo Penta Models:

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta V6 AQ175, AQ205, AQ430 A/B, 431 A/B, AQ434 Various 4-Stroke Before 1993 192154/479956 Manifold, elbow & gaskets
Volvo Penta V6 4.3L GM262 CID Various 4-Stroke After 1993 192154/479956 Manifolds, elbows & gaskets
Volvo Penta AQ & BB200, 205, 211, 231, 225, 260, 271, 290, 311, 500, 501, 570, 571, 572 GM 305/350 CID Various 4-Stroke Until 1993 192154/479956
Volvo Penta V8 7.4/8.2 GM 454/502 CID Various 4-Stroke 1992+ 192154/479956 Manifolds, elbows & gaskets
Volvo Penta V8 5.0/5.7L GM 305 CID Various 4-Stroke 1993+ 192154/479956 Manifolds, elbows & gaskets

OMC Models:

Brand Model Rated HP Stroke Years OEM Part No. Notes
OMC 4.3 GM 262 CID V6 Various 4-Stroke Since 1991 479956 Manifolds, elbows, end caps & gaskets
OMC 5.7L GM 350 CID V8 Various 4-Stroke Since 1990 479956 Manifolds, elbows, end caps & gaskets
OMC 7.4/8.2L GM 454/502 CID V8 Various 4-Stroke Since 1991 479956 Manifolds, elbows, end caps & gaskets

Technical Specs

Product Type
Straight Fitting Kit
Installation
Direct Replacement
Fuel Type
Gasoline and Diesel
Connection
Hose Connection
Dimensions
Height: 3.0 in; Width: 10.0 in; Length: 12.0 in
Fitting Type
Straight
Warranty
Standard 12 months (24 months when installed by authorized Volvo Penta dealer)

What’s in the Box

  • 1 x Straight Fitting (Replaces 192154/479956/818923/980532/981293)

Installation Notes

  1. Ensure the engine is off and completely cool. Disconnect the boat's battery.
  2. Drain the engine cooling system to a level below the fitting to be replaced.
  3. Locate the old straight fitting. Note the orientation of any connected hoses.
  4. Loosen the hose clamps and carefully twist the hoses to break the seal. Slide them off the fitting.
  5. Unscrew and remove the old fitting from the manifold or riser.
  6. Clean the threads and mating surface on the manifold/riser.
  7. Apply an appropriate marine-grade thread sealant to the new fitting.
  8. Screw the new fitting into place and tighten to the manufacturer's specified torque. Do not overtighten.
  9. Reconnect the hoses and secure them with new, high-quality hose clamps.
  10. Refill the cooling system with the correct coolant mixture.
  11. Reconnect the battery. Start the engine and carefully check for any leaks around the new fitting.

Troubleshooting & FAQ

How do I know if this fitting kit is correct for my engine?

The best way to ensure compatibility is to verify your engine model and year against the lists in the Engine & Model Compatibility section. Additionally, cross-reference your existing part number with those in the Part Number Matrix. If your part number or engine is not listed, this kit may not fit.

What are the signs of a failing straight fitting?

Common signs of failure include visible coolant leaks (drips or spray) from the fitting itself or the connected hoses, rust or corrosion on the fitting, and engine overheating caused by coolant loss. A cracked or brittle fitting should be replaced immediately.

How often should I replace my engine's cooling system fittings?

There is no fixed replacement interval for fittings. They should be inspected during regular engine maintenance for signs of corrosion, cracking, or leaks. In saltwater environments, inspections should be more frequent. Replace any fitting that appears compromised to prevent catastrophic engine failure.

Is this a single fitting or a complete kit with gaskets?

This is a single straight fitting. The compatibility notes mention "Manifolds, elbows & gaskets" to indicate the system this part belongs to, but this specific product is only the fitting. Gaskets, hoses, and clamps are not included unless specified in the "What's in the Box" section.

OEM vs. Aftermarket?

This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. All our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.

Shipping speed & cost?

We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most orders, and expedited options will appear at checkout if they are available for your location.

Warranty & returns?

Our parts are covered by a 1-year warranty against manufacturing defects under normal use. If you experience an issue, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its original condition. See our policy page or reach out for instructions.

Safety & Important Info

  • Verify images and specifications against your original part before purchasing. If anything differs—even if your model appears compatible—do not purchase.
  • This is an aftermarket replacement component, not an original equipment manufacturer (OEM) part.
  • Professional installation is highly recommended for safety, performance, and to prevent damage to your marine engine.

About Sea Sierra

  • Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.
  • Fast Global Fulfillment — We offer free standard delivery to most regions, with typical transit times of 5–15 days.
  • Manufacturer-Direct Value — By working directly with manufacturers, we provide fair pricing without compromising on materials or quality control.

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