SKU: 72237806995

Thermostat (72°C) – Fits Suzuki Outboard DF40-DF70 (Replaces 17670-87J00-000, 17670-87J01)

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Description

Thermostat (72°C) – Fits Suzuki Outboard DF40-DF70 (Replaces 17670-87J00-000, 17670-87J01)Thermostat (72C) Fits Suzuki Outboard DF40 DF70 (Replaces 17670 87J00 000, 17670 87J01) This replacement thermostat is designed for Suzuki 4 stroke outboard engines from 40 to 70 HP (DF40, DF50, DF60, DF70), model years 19982010. It regulates the engine's operating temperature by opening the cooling circuit at a precise 72C. It serves as a direct replacement for Suzuki part numbers 17670 87J00 000 and 17670 87J01, as well as Sierra 18 3627 and CEF

Thermostat (72°C) – Fits Suzuki Outboard DF40-DF70 (Replaces 17670-87J00-000, 17670-87J01)

This replacement thermostat is designed for Suzuki 4-stroke outboard engines from 40 to 70 HP (DF40, DF50, DF60, DF70), model years 1998–2010. It regulates the engine's operating temperature by opening the cooling circuit at a precise 72°C.

It serves as a direct replacement for Suzuki part numbers 17670-87J00-000 and 17670-87J01, as well as Sierra 18-3627 and CEF 5031762.

  • Regulates engine temperature by opening at a factory-set 72°C (161.6°F).
  • Engineered to meet OEM specifications for reliable performance.
  • Important: A new gasket is required for installation but is not included with this part.

Part Number Cross-Reference

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

Brand Part Number Superseded By
Suzuki 17670-87J00-000 17670-87J01
Suzuki 17670-87J01
Sierra 18-3627
CEF 5031762

Compatible Engine Models

Confirm your engine model/year in the table below. For Suzuki owners, You can review exploded diagrams here to verify part numbers: Suzuki Parts Diagrams & Catalog.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Suzuki DF40 40 4-Stroke 1999–2010 17670-87J00-000
Suzuki DF50 50 4-Stroke 1999–2010 17670-87J00-000 DF50X-K10 variant
Suzuki DF60 60 4-Stroke 1998–2009 17670-87J00-000
Suzuki DF70 70 4-Stroke 1998–2009 17670-87J00-000 DF70W-K9 variant

Technical Specifications

Specification Value
Product Type Thermostat
Opening Temperature 72°C (161.6°F)
Housing Material Metal
Dimensions 3 × 3 × 3 in (76.2 × 76.2 × 76.2 mm)
Weight 0.25 lbs (0.11 kg)
Function Regulates engine temperature by opening cooling circuit at specified temperature
Production Standards ISO9002 certified factories

Package Contents

1 × Thermostat (Replaces 17670-87J00-000/17670-87J01)

Note: Gasket and O-rings are not included.

Installation Guide

  1. Ensure the engine is completely cool before beginning work.
  2. Locate the thermostat housing, typically on the cylinder head or block.
  3. Place a drain pan under the housing to catch coolant, then unbolt the cover.
  4. Carefully remove the old thermostat, noting its correct orientation.
  5. Thoroughly clean the mating surfaces of the housing and its cover.
  6. Install the new thermostat, ensuring it is seated in the proper direction.
  7. Fit a new gasket (sold separately) and reinstall the housing cover, tightening bolts to the specified torque.
  8. Refill the cooling system with the appropriate coolant and start the engine to check for leaks and proper operation.

Troubleshooting & FAQ

Q: How do I confirm this thermostat fits my Suzuki outboard?
A: Check your engine model and year against the "Compatible Engine Models" table. It is also critical to verify that your existing part number matches one of the cross-referenced numbers, such as 17670-87J00-000 or 17670-87J01.

Q: What are the signs of a failing thermostat?
A: Common signs of failure include the engine overheating or, conversely, taking too long to reach its normal operating temperature. An inconsistent temperature gauge reading during operation can also indicate a faulty thermostat that is stuck open or closed.

Q: Is a gasket included with this part?
A: No, this package contains only the thermostat. You will need to purchase the correct gasket separately before beginning the installation.

Q: What is the opening temperature of this thermostat?
A: This thermostat is designed to open at a precise 72°C (161.6°F) to ensure your engine maintains its correct operating temperature for optimal performance and 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
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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: 72237806995

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Daniel Myers
Fort Morgan, US
★★★★★ 5
A Foundling's Felicity
This book or novel or whatever you may deem fit to call it has so many points in its favour that it's difficult to know where to begin. I think a rundown of a few of the myriad of characters that delight me personally might do for starters: Tom Jones - A young fellow with many "imperfections" if so they may be called, but a robust fellow with a "good heart." Prudence and what is commonly called virtue are not his strong suit - But may I remind the reader that virtue comes from the Latin word for "manliness"- Tom is certainly possessed of the word's etymological origins, if not of its modern usage (particularly in amorous matters)--And a good thing too, or we should have no story here to delight us! Squire Western- Another rambunctious character, who, for me, typifies all that is Eighteenth Century England. Every time he appeared in this book, whether it was to comment on wenching, wine, or riding to hounds a smirk would immediately cross my face followed invariably by chuckling by the end of the chapter. Henry Fielding - The author plays as much a part of the book as any of the characters with many prologues and prefaces and etc. For these, and for much of the rest of the book, I might add, the reader who has not had four years of Latin inculcated into him at an English boarding school would do well to buy the Oxford edition, which fully explains all the learned quotes - Also, as one who was thus inculcated but is inclined to laziness, the Oxford edition's notes prove extremely helpful also. Fielding also gives us a lively picture of the literary life of his time, which the Oxford footnotes do a deft job of explaining- In short, buy the Oxford edition. This review can not be comprehensive. There are simply too many characters to even make a go at encompassing them all. I'm merely describing some of the, to me, more delightful ones. The book as a whole is simply a joy to read, in its comic descriptions of all who will deign to admit that they are human, and of some priggish sorts who will not so deign. I can put it no better than Fielding Himself at the beginning of Book XV: "There are a set of religious, or rather moral writers, who teach that virtue is the certain road to happiness, and vice to misery, in this world. A very wholesome and comfortable doctrine, and to which we have but one objection, namely, that is not true." In short, this is a delightful ramble of a book which, while entertaining the reader not too attached to Sunday School, sheds light on how unvirtuous the virtuous can be, and how kind and good-natured the roguish can be as well as giving us as good a history lesson on the state of affairs in Eighteenth century England (with attention given to the Jacobite Rebellion etc.) as many a "proper" history does. Who, I ask myself, would not delight in this book? ---Well...for the priggish, there's always Jane Austen.
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Reviewed in the United States on January 24, 2007
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Alexander Kobulnicky
Lake Worth, US
★★★★★ 4
The Sidekick in Early-Modern Literature.
Tom Jones is probably the most influential novel in English history, pioneering elements like complex characterization, social criticism and authorial interjection. But you already knew that. What you want to know is, is this a good book for us in the 21st century. And here, it's not so clear. The dialogue is pretty brisk, and some of the exchanges (the stereotypical Whig Mrs. Western arguing with her Jacobite brother is a particular treat) are actually funny. The latter part of the novel evolves into a farce, with a dozen characters engaged in scheming against one another, while Tom and Sophia helplessly go along. Farce works better in drama, where it has a faster pace, but it's always a welcome mode of comedy. You don't see enough farces. Some of the characters are evocative (why do I picture Blifil as looking like Ted Cruz?) but some are not: Dowling is just a lawyer, and Mrs. Miller is a good woman, like thousands who have come since, and that's all there is to it. It's not as if every character needs to, or can, be a fully realized person, but the parts of the novel spent with these human plot devices do feel mechanical. But Mr. Partridge, Tom's traveling companion, is in a different category altogether, and he just poisons the parts of the novel that he features in (chiefly the middle third). Eighteenth Century literature has a depressing reliance on goofy loose-lipped sidekicks: Mr. Partridge, Hugh Strap, Humphrey Clinker, Andrew Fairservice, Friday. Sometimes they're servants, but sometimes they're just stupid friends. Part of this must be practical: It's difficult to follow a wandering hero (and why are the heroes of these novels always wandering? But that's a different question altogether) without giving him a friend to talk to. Maybe early novelists had a hard time sketching characters who didn't have a way to discuss the ongoing action. But mostly, I think this is the bad influence of Don Quixote, which was becoming increasingly popular in England during this period. Sancho Panza is OK, and he's certainly the funniest element of that leaden tome. But Mr. Partridge *is* Sancho Panza, cowardice, superstition and all, and one Sancho Panza was more than enough. You know? There's a limited number of things that a silly, selfless, lazy pal can do, and it's hard to read about the same old doofus, yet again.
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Reviewed in the United States on April 28, 2016

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