SKU: 88310533732

Thermostat Kit – Fits Volvo Penta 4.3L, 5.0L, 5.7L, 8.1L Engines (Replaces 3831426)

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Description

Thermostat Kit – Fits Volvo Penta 4.3L, 5.0L, 5.7L, 8.1L Engines (Replaces 3831426)Thermostat Kit Fits Volvo Penta 4. 3L, 5. 0L, 5. 7L, 8. 1L Engines This thermostat kit is designed for a wide range of Volvo Penta marine engines, including the 4. 3L, 5. 0L, 5. 7L, and 8. 1L V6 V8 models manufactured between 2001 and 2009. It covers various series such as Gi, GXi, OSi, OSXi, and designated V6 V8 models. This kit serves as a direct replacement for Volvo Penta part number 3831426. Compatibility: Designed for gasoline petrol engines.

Thermostat Kit – Fits Volvo Penta 4.3L, 5.0L, 5.7L, 8.1L Engines

This thermostat kit is designed for a wide range of Volvo Penta marine engines, including the 4.3L, 5.0L, 5.7L, and 8.1L V6/V8 models manufactured between 2001 and 2009. It covers various series such as Gi, GXi, OSi, OSXi, and designated V6/V8 models.

This kit serves as a direct replacement for Volvo Penta part number 3831426.

  • Compatibility: Designed for gasoline/petrol engines.
  • Installation: Direct replacement for a hassle-free installation.
  • Key Feature: Includes a thermostat rated at 160°F (71°C) with an integrated rubber gasket for a leak-free seal.

Part Number Cross-Reference

Use this table to confirm equivalent part numbers.

Brand Part Number
Volvo Penta 3831426

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Volvo Penta 4.3Gi-200-R 200 4-Stroke 2001-2009 3831426 Freshwater cooling
Volvo Penta 4.3GIPBYCCE, 4.3GIPNCACE, 4.3GiJWTR 4-Stroke 2001-2009 3831426 Gi series
Volvo Penta 4.3GXi-225-R, 4.3GXi-A, 4.3GXi-B, 4.3GXi-CF 225 4-Stroke 2001-2009 3831426 GXi series
Volvo Penta 4.3OSi-GF, 4.3OSi-J, 4.3OSi-EF 4-Stroke 2001-2009 3831426 OSi series
Volvo Penta 4.3GL-A, 4.3GL-B, 4.3GLPMDA, 4.3GLPWTR 4-Stroke 2001-2009 3831426 GL series
Volvo Penta 5.0GXi-270-R, 5.0GXi-A, 5.0GXi-BF, 5.0GXi-JF 270 4-Stroke 2001-2009 3831426 GXi series
Volvo Penta 5.0OSi-DF, 5.0OSi-E, 5.0OSi-FF 4-Stroke 2001-2009 3831426 OSi series
Volvo Penta 5.0FiPHUECE, 5.0FiPNCSCE, 5.0FLPHUE 4-Stroke 2001-2009 3831426 Fi series
Volvo Penta 5.7Gi-300-J, 5.7Gi-DF, 5.7GiE-300-KF 300 4-Stroke 2001-2009 3831426 Gi series
Volvo Penta 5.7GXi-320-R, 5.7GXi-CF, 5.7GXiE-MF 320 4-Stroke 2001-2009 3831426 GXi series
Volvo Penta 5.7OSXi-D, 5.7OSXi-DF, 5.7OSXi-JF 4-Stroke 2001-2003 3831426 OSXi series
Volvo Penta V6-200-A, V6-225-A 200-225 4-Stroke 2001-2009 3831426 V6 series
Volvo Penta V8-300-A, V8-320-E-B, V8-270-E-A 270-320 4-Stroke 2001-2009 3831426 V8 series
Volvo Penta 8.1Gi-B, 8.1GXi-CF 4-Stroke 2001-2009 3831426 8.1L engines
Volvo Penta DPX420-CF, DPX420-DF, DPX375-A, DPX385XEFS 375-420 4-Stroke 2001-2009 3831426 DPX series
Volvo Penta TAMD122A, TAMD122P-A, TAMD122P-C 4-Stroke 3831426 TAMD series

Technical Specifications

Specification Value
Product Type Thermostat Kit
Installation Direct replacement
Fuel Type Gasoline/Petrol
Temperature Rating 160°F (71°C)
Other Technical Attributes Integrated rubber gasket for leak-free operation
Warranty Standard manufacturer warranty

Package Contents

  • 1 × 160°F Thermostat with integrated rubber gasket (Replaces 3831426)

Installation Guide

  1. Ensure the engine is completely cool before beginning. Disconnect the battery's negative terminal for safety.
  2. Locate the thermostat housing on the engine. It is typically found where the main coolant hose connects to the engine block.
  3. Place a drain pan under the housing to catch any spilled coolant. Loosen the hose clamp and detach the coolant hose.
  4. Unscrew the bolts holding the thermostat housing in place and carefully lift it off, noting the orientation of the old thermostat.
  5. Remove the old thermostat and gasket. Clean both mating surfaces on the engine and the housing to remove all debris.
  6. Install the new thermostat in the same orientation as the old one. The new unit includes an integrated gasket for a secure seal.
  7. Re-position the thermostat housing and tighten the bolts to the manufacturer's recommended torque specifications.
  8. Reconnect the coolant hose and secure the clamp, then top off the coolant level in the system.
  9. Reconnect the battery terminal. Start the engine and let it run, checking carefully for any leaks around the thermostat housing.
  10. Monitor the engine temperature gauge to ensure it stays within the normal operating range.

Troubleshooting & FAQ

Q: How do I confirm this thermostat kit fits my engine?

A: This kit is designed for Volvo Penta 4.3L, 5.0L, 5.7L, and 8.1L Gi, GXi, OSi, OSXi, V6, and V8 series engines from 2001-2009. Please check the "Compatible Engine Models" table to verify that your specific model is listed. It is a direct replacement for OEM part number 3831426.

Q: What are the signs of a failing thermostat?

A: Common symptoms include engine overheating, the temperature gauge reading unusually low, or significant fluctuations in engine temperature. A stuck-open thermostat will prevent the engine from reaching operating temperature, while a stuck-closed one will cause overheating.

Q: What is the temperature rating of this thermostat?

A: This thermostat is rated to open at 160°F (71°C), which is the standard specification for the compatible Volvo Penta engines to ensure optimal performance and fuel efficiency.

Q: OEM vs. Aftermarket?

A: 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.

Q: How fast do you ship and how much does it cost?

A: 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.

Q: What is your warranty and return policy?

A: 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: 88310533732

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4/5 Quality
I preordered this book and it arrived on the day it was released! The binding was not as strong as I prefer, but it is typical for books I ordered from Amazon. The story itself… 5/5! I loved the Warner chapters the most and enjoyed learning more about Jame.
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Reviewed in the United States on April 22, 2026
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Love. The series is amazing and I was tickled to snag the pretty version. Great seller, book arrived on time and in perfect condition.
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Julie Mc
Houston, US
★★★★★ 5
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***Spoilers Ahead*** ⭐️⭐️⭐️⭐️⭐️ from me!!! Release Me by Tahereh Mafi centers almost entirely on the complicated, intense connection between James and Rosabelle. James is still all in, trying to break through Rosabelle’s walls and get her to open up, while Rosabelle is focused on one goal above everything else: finding a way back home so she can destroy Klaus, help bring down what remains of The Reestablishment, and save her sister. She fully believes in that mission, but she feels trapped within the New Republic, unable to act, which only adds to her frustration and inner conflict. At the same time, Rosabelle is drawn to James in a way she cannot ignore. He becomes her only sense of safety, the one place where she can let her guard down, even as she fights against that pull. James, on the other hand, is exactly where he wants to be, with her, even as Warner and the rest of his family push back hard against the relationship because of her past. Warner’s perspective adds another layer of tension, especially as he tries to understand Rosabelle and realizes she is the first person he has ever encountered whose emotions he cannot read. As everything builds, the story leans heavily into trust, control, and the push and pull between love, loyalty, and the need to destroy the past. Tahereh Mafi really just knows how to write a love story that gets under your skin, and this one absolutely did that for me. I am fully, completely in on James and Rosabelle. The emotional intensity between them is unreal, and what makes it hit so hard is that it never feels shallow or forced. They are both so deeply gone for each other, even while Rosabelle is still fighting her own plans, her past, and everything she thinks she has to do. James is steady in the way he wants her, protects her, and keeps reaching for her, and Rosabelle’s pull toward him feels just as powerful. You can feel that these two are not casually circling each other. They are fully in it, whether they want to admit it or not. What really made this book a five-star read for me is the way Mafi writes their dialogue and inner monologues. It is intense, aching, vulnerable, and honestly kind of devastating in the best way. Every conversation between them feels loaded, and every thought they have about each other just digs the knife in deeper. I loved the tension of Rosabelle being so focused on destroying Klaus and taking down what remains of The Reestablishment, while James becomes the one place where she feels safe enough to breathe. That push and pull was beautiful. And then you have everyone around James warning him away from her, which only adds even more weight to the whole thing. Also, Warner trying to understand Rosabelle when he cannot read her the way he reads everyone else was such an interesting layer. This book gave me emotion, longing, conflict, and a romance I am fully invested in.
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