SKU: 64679990701

875796 Thermostat for Volvo Penta MD2 MD6 MD6A MD6B MD7 MD7A MD7B AQ120 AQ125 AQ140 BB140 | JLM Marine

Sale price$30.56 Regular price$33.95
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Description

875796 Thermostat for Volvo Penta MD2 MD6 MD6A MD6B MD7 MD7A MD7B AQ120 AQ125 AQ140 BB140 | JLM MarineThermostat for Volvo Penta MD2 MD6 MD6A MD6B MD7 MD7A MD7B AQ120 AQ125 AQ140 BB140 This high quality aftermarket thermostat is engineered to fit Volvo Penta marine diesel engines, including the MD2, MD6A, MD6B, MD7A, MD7B series, as well as AQ120, AQ125, AQ140, and BB140 models. Designed to maintain optimal operating temperature, this thermostat ensures reliable engine performance and longevity in demanding marine environments. This thermostat

Thermostat for Volvo Penta MD2 MD6 MD6A MD6B MD7 MD7A MD7B AQ120 AQ125 AQ140 BB140

This high-quality aftermarket thermostat is engineered to fit Volvo Penta marine diesel engines, including the MD2, MD6A, MD6B, MD7A, MD7B series, as well as AQ120, AQ125, AQ140, and BB140 models. Designed to maintain optimal operating temperature, this thermostat ensures reliable engine performance and longevity in demanding marine environments.

This thermostat directly replaces OEM part numbers 875796 and 833366, providing a cost-effective solution without compromising on quality or fitment.

  • Complete thermostat service kit for straightforward replacement
  • Precision-engineered to meet OEM specifications
  • Suitable for Volvo Penta diesel marine engines

Part Number Cross-Reference

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

Brand Part Number
Volvo Penta 875796
Volvo Penta 833366

Compatible Engine Models

Confirm your engine model/year in the table below.

Brand Model
Volvo Penta MD2
Volvo Penta MD6A
Volvo Penta MD6B
Volvo Penta MD7A
Volvo Penta MD7B
Volvo Penta AQ120
Volvo Penta AQ125
Volvo Penta AQ140
Volvo Penta BB140

Technical Specifications

Specification Value
Product Type Thermostat Service Kit
Application Volvo Penta Marine Diesel Engines
OEM Part Number 875796, 833366

Package Contents

Your purchase includes the following components:

  • 1 × Thermostat Service Kit

Installation Guide

  1. Ensure the engine is completely cool before beginning any work. Disconnect the battery to prevent accidental starting.
  2. Drain the cooling system by opening the drain plug or removing the lower hose. Collect coolant in a suitable container.
  3. Locate the thermostat housing on your Volvo Penta engine. It is typically mounted on the cylinder head or block.
  4. Remove the bolts or clamps securing the thermostat housing cover. Carefully lift off the cover.
  5. Extract the old thermostat from its seat. Note the orientation of the thermostat before removal.
  6. Clean the mating surfaces of the housing and cover thoroughly, removing all old gasket material and debris.
  7. Install the new thermostat in the correct orientation (spring side typically faces the engine block). Ensure it seats properly.
  8. Place a new gasket or O-ring on the housing if included in the kit. Apply a thin layer of sealant if recommended by the manufacturer.
  9. Reinstall the thermostat housing cover and tighten the bolts evenly to the manufacturer's specified torque.
  10. Refill the cooling system with the correct type and mixture of coolant as specified in your engine manual.
  11. Reconnect the battery and start the engine. Allow it to reach operating temperature while checking for leaks around the thermostat housing.
  12. Check coolant level after the engine has cooled and top off if necessary. Verify proper thermostat operation by monitoring engine temperature.

Troubleshooting & FAQ

Q: How do I know if my thermostat needs replacement?
A: Common signs include engine overheating, running too cool (not reaching normal operating temperature), erratic temperature gauge readings, or coolant leaks around the thermostat housing. If your engine takes longer than usual to warm up or runs hotter than normal, the thermostat may be stuck open or closed.

Q: Will this thermostat fit my specific Volvo Penta engine model?
A: This thermostat is designed to fit MD2, MD6A, MD6B, MD7A, MD7B, AQ120, AQ125, AQ140, and BB140 models. Cross-reference your current part number (875796 or 833366) with our listing and verify the physical appearance matches your original component before ordering.

Q: How often should I replace my marine engine thermostat?
A: Thermostats should be inspected during routine cooling system maintenance and typically replaced every 3–5 years or according to your engine manufacturer's service schedule. If you experience cooling system issues or the thermostat shows signs of corrosion or damage, replace it immediately regardless of age.

Q: What is the difference between this aftermarket thermostat and the OEM part?
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: 64679990701

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★★★★★ 5
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These are cute but not holding up as well as I had hoped. Quality is ok and the Velcro has held up great. The fabric just isn’t as good as it could be. They are much larger than expected.
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Alice
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Color: Multicolor/Alligator & Wild Duck, Size: Medium, Color: Multicolor/Alligator & Wild Duck, Size: Medium
Best dog toy! Most dog toys lady maybe a week or less but this one has been going strong for almost 2 months. Both the squeekers still work on both toys i purchased. My vizsla loves ti squeek and carry it around. We added an empty water bottle in the pocket cavity for some extra fun! Yes, we are still on the same water bottle! Fantastic durability.
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Reviewed in the United States on May 26, 2026
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Victor Densmore
Draper, US
★★★★★ 5
Great cuddle toy!
Color: Bunny (Mauve), Size: Medium, Color: Bunny (Mauve), Size: Medium
My Lolli loved this bunny. Just the right size for her to cuddle with. It’s soft and cute with just enough crinkle noise to keep her interested. Loved the color!!
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MuchosPoptartos
Phoenix, US
★★★★★ 5
Best toy for Fetch, Inside and outside. I have multiple of them!
Color: Colors May Vary, Size: 5.5 Inch
Size: LARGE This is hands-down my favorite toy for playing fetch/exercising my dog. I've already bought 2 of these, and I am buying a third because the first one is being rotated out (it got baked by the sun after 3 years outside haha). My Story: My dog LOVES to play. All the time. Inside and outside (well duh, all dogs do). But this toy allows me to play inside while not worrying too much about breaking things. My dog has grown out of his "chew to DESTROY it!" phase, so he is able to keep his toys for a long time. I hate touching toys after they've been slobbered all over, it keeps me from playing with him! There are so many toys that become slippery or slimy after just one throw! But THIS is a great toy because you are able to pick it up with one finger, and just fling it really easily, without getting your hands all gross. In fact, when i'm playing outside with my dog, I actually KICK these (large or jumbo size only) instead of throwing them. They are perfect for that! and I can get a good kick and consistent placement every time with this thing. And then, I don't have to touch it with my hands AT ALL! Reasons I love it: - Non-destructive Indoor Play: I like that this thing keeps its shape, but when it hits things, it just doinks off really lightly and doesn't cause any marks or damage to walls, windows, etc. Note: my house is also not full of knick-knacks or delicate items placed all around that are in harm's way. I'm sure it could knock down some little glass vases if it made contact. The point is, if you place your throws well, you are very unlikely to damage anything in your house (besides your wood floors from your dog's nails sliding all around haha). - Quiet: When you kick/throw this toy, and then it lands on the ground/hardwood, it doesn't sound like a bomb went off in your house. It lands softly and lightly, as if you tossed a half-empty toilet paper roll. I have hardwood at my house, so when I play with other toys, they land on the floor and go BOOM as if you just dropped a 20lb weight! If someone else is playing with my dog with other toys and i'm in the other room, it nearly scares the pants off me. I run in and say, "WHAT THE HELL IS GOING ON --oh, you're just playing! so cute. Sorry, continue on." - Slobber-Free: You don't have to touch the slobbery part in order to throw it or kick it to your dog! Very easily kick-able; it's my preferred method of playing fetch (least energy for me, although I should be the one running, ha). - Easy to catch: Super easy for my dog to catch. He should be a wide receiver cuz he catches things that, when I kick it, while it's in the air i'm thinking, "AW CRAP, that's way too far..... OH WAIT, he got it?!?! noiiice!" Makes an amateur "quarterback" proud lol. - Price: It's not $20 per ball! Some toys are $20 and they make you REALLY have to think ... "Does he REALLY need this toy....??" the answer is always NO, (because he has a million toys that are perfectly good). And then I waver so long on the purchase that I forget it even exists! - Longevity: If your dog is past the "MUST.DESTROY.ALL.THINGS!" stage, then it will last a long time. After 3 years, I'm finally replacing/rotating-out the first one I bought 3 years ago. It has been in the sun, rain, winter, mud; everything. I could still use it; it's totally usable! I was just like, "Eh, why not get a new one?" Honestly, you can never have too many of these. seriously. - Light, Easily Portable: I always pack these in my dog bag. They are light, and they can smoosh into the bag to a smaller size if my bag is full. No problem. - Least-annoying toy that your dog brings to you: My dog likes to HINT that he wants to play by bringing his toys and setting them in my lap (wherever i am). With most of his other toys, my reaction is, "GROSS! it's already so slimy!" and I flick it off of me. This Hole-Y Roller is light and not slimy so you can quickly fling it for your dog without getting side-tracked from whatever “unimportant human activity” you’re doing.
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Reviewed in the United States on September 12, 2018

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