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Description
3853983 Thermostat Kit for Volvo Penta | JLM Marine60 Thermostat Kit for Volvo Penta 7. 4 8. 1 8. 2 GI GIE GIL Marine Engines OEM 3853983 This thermostat kit is designed for Volvo Penta and OMC marine engines, fitting many 4. 3, 5. 0, 5. 7, 5. 8 Ford and GM based V6 and V8 engines including the 7. 4, 8. 1, and 8. 2 GI, GIE, and GIL series. Engineered to maintain optimal operating temperature, this kit ensures reliable cooling system performance in demanding marine environments. This aftermarket
60° Thermostat Kit for Volvo Penta 7.4 8.1 8.2 GI GIE GIL Marine Engines – OEM 3853983
This thermostat kit is designed for Volvo Penta and OMC marine engines, fitting many 4.3, 5.0, 5.7, 5.8 Ford and GM-based V6 and V8 engines including the 7.4, 8.1, and 8.2 GI, GIE, and GIL series. Engineered to maintain optimal operating temperature, this kit ensures reliable cooling system performance in demanding marine environments.
This aftermarket replacement directly crosses to OEM part numbers 3853983, 3856961, and 383307, providing a cost-effective solution without compromising quality or fit.
- Includes 160-degree thermostat, O-ring, and gasket for complete installation
- Compatible with Ford and GM-based V6 and V8 marine engines
- Not compatible with 4-cylinder engines
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Volvo Penta | 3853983 |
| Volvo Penta | 3856961 |
| Volvo Penta | 383307 |
Compatible Engine Models
Confirm your engine model/year in the table below.
| Brand | Model | Notes |
|---|---|---|
| Volvo Penta | 4.3, 5.0, 5.7, 5.8 (Ford & GM-based V6/V8) | Many engines |
| Volvo Penta | 7.4, 8.1, 8.2 GI GIE GIL | Marine engines |
| OMC | Various V6/V8 models | Check part number compatibility |
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 3853983 |
| Replaces Part Numbers | 3856961, 383307 |
| Thermostat Temperature | 160°F (60°C) |
| Application | Volvo Penta & OMC marine engines (V6/V8) |
| Engine Compatibility | Ford & GM-based V6 and V8 (NOT 4-cylinder) |
Package Contents
- 160-degree thermostat (1 pc)
- O-ring (1 pc)
- Gasket (1 pc)
Important: Verify all components against your original parts before installation. This kit does NOT fit 4-cylinder engines.
Installation Guide
- Allow the engine to cool completely and drain the cooling system to a level below the thermostat housing.
- Disconnect the negative battery cable to ensure safety during the procedure.
- Remove the upper radiator hose or coolant line connected to the thermostat housing.
- Unbolt and carefully remove the thermostat housing cover, noting the orientation of the old thermostat.
- Remove the old thermostat, O-ring, and gasket; clean all mating surfaces thoroughly to remove debris and old gasket material.
- Install the new thermostat with the correct orientation (spring side typically faces down into the engine block).
- Position the new gasket on the housing mating surface, ensuring proper alignment.
- Place the new O-ring into its designated groove on the thermostat or housing.
- Reinstall the thermostat housing cover and torque bolts to manufacturer specifications in a crisscross pattern.
- Reconnect the upper radiator hose or coolant line and secure with clamps.
- Refill the cooling system with the correct coolant mixture and bleed air from the system per manufacturer guidelines.
- Reconnect the battery, start the engine, check for leaks, and verify proper operating temperature.
Troubleshooting & FAQ
Q: How do I confirm this thermostat kit fits my Volvo Penta engine?
A: Check your engine model against our compatibility table above (4.3, 5.0, 5.7, 5.8, 7.4, 8.1, 8.2 GI/GIE/GIL V6/V8 engines). Verify your current thermostat housing matches the OEM part numbers 3853983, 3856961, or 383307. Note that this kit does NOT fit 4-cylinder engines.
Q: What are the signs that my thermostat needs replacement?
A: Common symptoms include engine overheating, running too cool (poor fuel economy, lack of heat), temperature gauge fluctuations, or coolant leaks around the thermostat housing. A thermostat stuck open or closed will cause temperature regulation issues.
Q: Can I use this 160°F thermostat if my engine originally had a different temperature rating?
A: Always use the thermostat temperature specified by your engine manufacturer. Installing a thermostat with an incorrect temperature rating can lead to overheating, poor performance, or engine damage. Verify your engine's original specification before installation.
Q: How often should I replace my marine engine thermostat?
A: Thermostats should be inspected annually and replaced every 2–3 years or per manufacturer recommendations. Marine environments accelerate corrosion and wear, so regular replacement helps prevent unexpected failures and maintains optimal engine temperature.
Q: Why does the kit include an O-ring and a gasket?
A: Different Volvo Penta and OMC engine models use different sealing methods. Some housings require an O-ring, others use a flat gasket, and some use both. Inspect your original setup and use the appropriate sealing components from the kit to ensure a leak-free installation.
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.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 689 reviews
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Product Reviews
★★★★★ 5
Excellent pee pad tray has "legs" to keep feet off of the pad
Size: 18"X24", Size: 18"X24"
My 10 week old Pekingese learned quickly to use it, and Pekingese are a very stubborn breed. We started training her by removing the grid because she was used to paper. It snaps out easily. We used pee pads with sticky tabs to attach the pad, then snapped the "frame" in place without the grid. Within a few days, she had figured it out, so we snapped the grid back in so her feet never touch the used pad. No more wet feet. I bought the medium size that is aqua blue.
For those that ask if it will fit their crate...measure your crate! My large crate is 42" x 23" and the tray fits two ways as seen in the pictures. My small crate is 23" x17" and the tray does NOT fit. I wish the company made a 10" x 14" tray for traveling. (pink???)
Start using it when you have a couple of days to give your puppy 100% of your attention. 100% attention!!
If she/he does not use it, then it is your fault for not paying attention. My puppy would go every 15 minutes at first! Put a WHITE plastic shower curtain liner on your floor so you can see if she misses it. The liner wipes off easily with Clorox wipes or goes in the washing machine. For those puppies who stand on the edge of the tray, but still miss it because their back legs are barely on it, help them walk forward and put plastic under the tray to catch any misses.
Now, at 4 months old, she seldom uses it, but it is available. Her pen is getting larger and larger. After she pees outside, we let her run around in in the living room for about an hour, then she goes back in the pen. Her attention span is short and she can't always make it back to her tray in the pen. My husband always brings her in the house after she has peed one time outside, but if I take her outside, I wait until she goes at least 3 times and there won't be accidents in the house. Sometimes, it takes more than 1 time to empty their bladder.
This pad tray is not like others on the market. Look closely at other grids, and you will see that other trays do not have the "legs" on the under side of the grid that keep the plastic grid from touching the used pad. My puppy tried to chew on the plastic tray, but she is always in our vision so we just say, "Ahhh!" and she leaves it alone. No problems with chewing. The Ahhh!" stops her every time, and we say it to stop her from doing anything wrong. Some people say their dog chews on it. Just like children, dogs need to be taught. Don't complain about how the pee pad or pee tray doesn't work. Teach your dog or your dog to not chew on it.
Like others have mentioned, my puppy likes sleeping on the tray at night, because it has air circulating under it, so it is cooler than her bed. (Not the fault of the product!) We can't break her of that habit without confusing her or removing the tray. She may stop using it if we teach her to get her off it. I have been putting frozen gel compresses wrapped in a towel in her play pen during the day, and as long as the compress stays cold, she will lay on it instead of the pad tray. Always watch, so a dog doesn't chew on the gel compresses.
I don't know why some people have said that urine runs out, because it is sealed. Maybe they are not changing the pads often enough. I started out changing them twice a day, then since my puppy started flea and tick medicine, she could start going outside. I changed the pad once a day then. Now, at 4 months old, she goes outside, but we put it in her large kennel at night. (The tray is too big to fit in her small dog kennel.) For the last three days and nights, she has not used it at all, but it is there just in case.
If your tray does not have rubber pads on the bottom, buy some or put the tray on a piece of rubber kitchen shelf liner. My tray doesn't slide. If your dog runs to it and jumps on quickly, it may slide, so put something under it.
Remember, your dog may not want to walk on it, but it is up to you to teach the dog to walk on it. They don't get a choice! You are in charge!
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Reviewed in the United States on September 17, 2020
★★★★★ 5
Hands down, best pee pad holder
Size: 18"X24"
I did so much research to find the right puppy pad holder. I would give this 10
stars if I could.
It’s softer plastic but not flimsy. The holes are comfortable for puppy feet. I see a lot
with metal grates and pictures of injured doggy feet. Our pups are small and they walk on it just fine. I used to go through 10 pee pads a day. Now one pad lasts all day. Pups can’t go wee wee and trail it all over the house. Since it’s the same pee pad, pups look for the smell and are motivated to pee pee in the same spot. Puppies used to wake up several times a night because they would pee, step in it, tear up the pee pad, make a mess. The night time drama has definitely decreased significantly.
Easy to lock, puppies can’t get into it. Easy to open to change out the pee pad. Comfortable to clean in a larger kitchen sink. Lightweight. Sometimes the doodie will go through the grates and sometimes it sits right on top, depending on the size of the doodie. Cleaning doodie stuck in the grate is never fun, but I use an old toothbrush and it works just fine.
Very happy with this item.
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Reviewed in the United States on January 29, 2026
★★★★★ 1
easily destructed by puppy that chews
Size: 24"X24"
disappointed in this purchase. It comes in 2 pieces, which are not exactly easy to fit together and cumbersome. This design flaw also makes it very easy for puppies who are prone to chewing to destroy. It last 1 day then i had to toss it
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Reviewed in the United States on January 29, 2026
★★★★★ 3
Great, for the most part
Size: 24"X24"
Love it overall and super glad I chose this one after looking at so many.
Pros:
- Perfect size for what I needed. Fits exactly in the space it was planned for
- Fits 22x22 pee pads nicely (which are easily accessible and cheaper than other sizes)
- the color is a brighter blie than I was expecting and shinier in person, which I like very much :)
Con:
I didn't realize that it's actually 4 pieces.
2 for the top, 2 for the bottom, and you have to put them together.
- I like the little weight distribution pieces they have so it keeps the top from sinking down onto the pee pad.
A few problems with that:
- I'm pretty great at putting together furniture, but for some reason one level connected fine and the other just would not go. I ended up using a flat head screwdriver to pry a piece out so it would go over the other. (If you buy it, you might understand what I mean better lol)
- with it coming in 4 pieces instead of two, it's less structurally sound and tends to bow in the middle. Even more so because they put both middles parallel instead if perpendicular.
- there are potty pads in there, but the seams create a more likely scenario of dripping onto my floor. Where I wouldn't have to worry about that with a solid piece.
- I may have to take the whole thing apart to clean between the individual pieces and this may cause it to be less secure over time due to taking apart and putting back together over time.
Great little thing overall and glad I got it :) serves it's purpose
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Reviewed in the United States on February 7, 2025
★★★★★ 5
Works Perfect!
Size: 24"X24"
Same scenario here as a lot of other reviewers... We've got a 10-week-old pup that used potty pads at first... But now is in the teething and let's tear everything up stage. It was starting to get dangerous even with other holders she was tearing up the pads completely and we were worried she was going to ingest them.
We looked at several different products, including the over twice the cost metal wolf brand. But I have to say, really glad we went with this one. It does take a minute to snap together properly, but once you do changing out pads is a breeze.
Once our girl (Mini Poodle) went on top of the greats and used the bathroom we gave her a big reward with lots of praise and a treat. She hasn't been able to tear it up at all. And I believe since she can smell her marking, she has been going back and using it about 7/10 times.
More recently, the success rate has been going up. Like I said, she hasn't been able to flip it over, break it apart etc. So we are incredibly happy with this purchase and has made our lives so much easier.
Once she gets bigger we will see how she handled it. And if she is able to break it apart. But I doubt it, there is a fairly satisfying click when you lock in both sides with the pad beneath.
We are using Frisco pads from Chewy large size and they fit pretty much perfectly. You have to fold the blue border slightly but it works great!
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Reviewed in the United States on November 3, 2024
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