SKU: 65695964523

6DR-14301-00 Thermostat for Yamaha F9.9J FT9.9L T9.9MHB | JLM Marine

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Description

6DR-14301-00 Thermostat for Yamaha F9.9J FT9.9L T9.9MHB | JLM MarineThermostat for Yamaha F9. 9J FT9. 9L T9. 9MHB Fits Yamaha 9. 9HP Outboards This aftermarket thermostat is engineered to fit select Yamaha 9. 9HP outboard models, including the F9. 9J, FT9. 9L, and T9. 9MHB. It ensures proper engine temperature regulation for consistent performance and longevity. This part directly replaces OEM part number 6DR 14301 00, providing a reliable and cost effective solution for maintaining your outboard's cooling system.

Thermostat for Yamaha F9.9J FT9.9L T9.9MHB – Fits Yamaha 9.9HP Outboards

This aftermarket thermostat is engineered to fit select Yamaha 9.9HP outboard models, including the F9.9J, FT9.9L, and T9.9MHB. It ensures proper engine temperature regulation for consistent performance and longevity.

This part directly replaces OEM part number 6DR-14301-00, providing a reliable and cost-effective solution for maintaining your outboard's cooling system.

  • Direct replacement for Yamaha part number 6DR-14301-00
  • Designed for Yamaha 9.9HP four-stroke outboards
  • Ensures optimal engine operating temperature

Part Number Cross-Reference

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

Brand Part Number
Yamaha 6DR-14301-00

Compatible Engine Models

Confirm your engine model/year in the table below. For Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Brand Model OEM Part No.
Yamaha F9.9J 6DR-14301-00
Yamaha FT9.9L 6DR-14301-00
Yamaha T9.9MHB 6DR-14301-00

Technical Specifications

Specification Value
OEM Part Number 6DR-14301-00
Fits Brand Yamaha
Compatible Models F9.9J, FT9.9L, T9.9MHB

Package Contents

  • 1 x Thermostat (Part No. 6DR-14301-00)

Installation Guide

  1. Ensure the engine is completely cool before starting work. Disconnect the battery to prevent accidental starting.
  2. Drain the cooling system and locate the thermostat housing on your engine. Consult your service manual for the exact location.
  3. Remove the bolts securing the thermostat housing cover. Carefully lift the cover and remove the old thermostat.
  4. Clean the mating surfaces of the housing and cover thoroughly, removing all old gasket material and debris.
  5. Install the new thermostat in the correct orientation (spring side typically faces inward toward the engine). Ensure proper seating in the housing recess.
  6. Replace the housing gasket or O-ring with a new one if available. Apply a thin coat of marine-grade sealant if recommended by the manufacturer.
  7. Reinstall the thermostat housing cover and torque bolts to manufacturer specifications in a criss-cross pattern.
  8. Refill the cooling system with the appropriate coolant or allow water circulation to resume. Check for leaks around the housing.
  9. Reconnect the battery and start the engine. Monitor operating temperature to confirm proper thermostat function.
  10. Allow the engine to reach normal operating temperature and verify no coolant leaks. Top off coolant if necessary.

Troubleshooting & FAQ

Q: How do I confirm this thermostat fits my Yamaha outboard?
A: Verify your engine model against the compatibility table above (F9.9J, FT9.9L, T9.9MHB). Cross-check your current thermostat's part number with 6DR-14301-00 or use the Yamaha parts diagrams linked in the Compatible Engine Models section.

Q: What are the signs that my thermostat needs replacement?
A: Common symptoms include engine overheating, running too cool (long warm-up times), inconsistent temperature readings, or coolant leaks near the thermostat housing. If your engine fails to reach normal operating temperature, the thermostat may be stuck open.

Q: How often should I replace the thermostat on my Yamaha outboard?
A: Yamaha recommends inspecting the thermostat during routine maintenance intervals (typically every 100 hours or annually). Replace it if you notice corrosion, failure to open/close properly, or as part of cooling system service every 2–3 years depending on usage and water conditions.

Q: Can I install this thermostat myself or do I need a professional?
A: If you have basic mechanical skills and tools, thermostat replacement is straightforward. However, proper torque specifications and coolant handling are critical; professional installation is recommended if you're unfamiliar with outboard cooling systems.

Q: Is this an OEM Yamaha part or an aftermarket replacement?
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: 65695964523

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4.0 ★★★★★
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Jerry Saperstein
Lake Worth, US
★★★★★ 5
A valuable book for non-lawyers and lawyers
Why would non-lawyers want to read a book on persuading judges? For several reasons actually. First, many of us are involved in work that requires persuading others to adopt our views. While legal argument is substantially more formal and rule-driven than what most of us do, learning how to construct a logical argument as if it were to be delivered to the court, that Is governed by deadlines, restrictions on length, the need to adhere to established fact (or to establish those facts) and to be neither groveling nor inflammatory can be applied to selling your widgets. Perhaps more important is the fact that most people don't understand the impact of the court's decisions on our daily lives, our pocketbooks and our freedoms. Nine people sit on the Supreme Court. They cannot be removed except for the most grievous crimes and then only if Congress were to agree. More than one Justice has demonstrated that you can be senile and sit on the nation's highest court. Going down the food chain, the same applies to the federal appellate and trial courts. It is unlikely that one person in a hundred can even name a local federal district court judge and probably not one in a thousand could name the nine Supreme Court justices. Yet these men and women have tremendous impact on our lives, as do the thousands of state court justices. I am not a lawyer, but I consult to them and am not a stranger to the courtroom, writing drafts for legal briefs, doing legal research and the like. I have seen a lot of judges in action and have learned, in general, to fear them. They can - and do - cause tremendous harm through ill-considered decisions, making decisions with insufficient facts, assuming they know more than they do and myriad other reasons. They are gods in their courtrooms and if your lawyer fails to persuade them of the justness of your cause, you lose. Just how do these people reach their decisions? While justice is supposed to be blind (fat chance!), the justices are human and thus persuadable. Bryan Garner is a noted writer on legal writing. He is actually quite witty as he explains the use of the English language to lawyers who have had their understanding of words driven out of them in law school. Antonin Scalia is a hero to many for the courageousness of his decisions and dissents, his belief that the Constitution is to be strictly interpreted and his generally brilliant writing style. In 115, frequently witty, short chapters the two authors (who occasionally openly disagree) lay down their thoughts on how judges can be persuaded. It is not all about legal writing; e.g, advice to not chew your fingernails and dressing appropriately for court. They advise on giving your oral argument, which a lot of sales and marketing people would do well to read, especially the guidance to "never speak over a judge". In a sales situation, I am surprised at how often the sales person displays his or her contempt for me by not only not listening to me, but presuming they understand the point I was going to make before they spoke over me. I don't know about you, but a lot of salespeople have lost business with me for doing that. Some of the points the authors make are points of contention themselves: i.e., "swear off substantive footnotes - or not". None of the material in this book is truly new. Law students get elements of it in their first year as do some college students. A lot can be found in books on to be a better salesperson: i.e., don't chew your fingernails, etc. And a lot of it is plain commonsense. But that doesn't mean this book is unhelpful. First, it reveals in tiny part how Scalia evaluates the briefs he reads and arguments he hears, which in itself is a fascinating peek. The authors also put things many people may have forgotten through lack of use into perspective. Finally, they remind lawyers and non-lawyers alike that you often have only one shot at winning your argument so you had best put your best foot forward. Scalia and Garner show you how to do it. Overall, this is a fun, informative and helpful read. Jerry
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2010
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Verified Purchase
Rod Sullivan
Fort Morgan, US
★★★★★ 5
Like Having an Expert Looking over Your Shoulder
I am a law professor who spent 25 years as a Plaintiff's lawyer before deciding to teach. I've been before the U.S. Circuit Courts of Appeal many times and state appellate courts a few times. One caveat to consider: I expect to be arguing before the United States Supreme Court in the future. I hesitate to be too ebullient, lest you think that I'm trying to curry favor. However, I think that this book is great. Why do I recommend it? First, it is short. This book will accomplish much of what other books try to teach about advocacy, but in many fewer pages. Secondly, it is practical. It teaches writing skills, speaking skills, and how to be persuasive with limited time. Finally, it is not just for lawyers. Anyone trying to be persuasive can apply the same skills to other situations. For those of you who are politically opposed to Justice Scalia (which, believe it or not, includes some law professors)this is a joint effort by Garner and Scalia, and they frequently disagree. Hearing both sides of the argument on how to write or speak persuasively will help you decide how you want to present your arguments. How do my political opinions and Justice Scalia's opinions mesh? Can I be fair? I think so. He's a Federalist, I consider myself an Anti-Federalist. He as supporter of administrative delegation, I think delegation of congressional responsibilities to administrative agencies is congressional abdication. In short, I'm not recommending this book because Justice Scalia and I agree on policy, because on many policy matters we don't. I'm recommending it because I think it will help you. You wont be disappointed with the book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2009
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Verified Purchase
xiwaeo
Louisville, US
★★★★★ 5
Great Read
Great book, I enjoyed reading it. I am non-lawyer so I spent time having to read and re-read sentences and paragraphs but darn good book. Highly recommend it. Sometimes a person can be in discussion with an official, doctor, lawyer, cop ..whatever--it helps to remember arguments made in this book. Most folks just try to explain a situation, heaven forbid standing in front of a court or judge in a legal matter. But, this type of reading builds confidence, a strong vocabulary and so forth. It matters most trying to persuade a person or an institution..just winning, making your point in a clear coherent and cognizant way. This book can teach you these things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 20, 2025
J
Verified Purchase
Jeff Wade
Massapequa, US
★★★★★ 4
You don't have to like Justice Scalia to like his book.
Perhaps an appellate brief that you wrote would have been perfect if only the judge had read it. The lesson you learned, hopefully, was that there is no guarantee that a judge will read your brief. The lesson you can learn from "Making Your Case" is how to write so that the judges will read what you wrote - preferably before your oral argument. Writing in a quite candid, lucid and entertaining style, Scalia and Garner serve up tips that even the most experienced lawyers can learn from. If you find yourself approaching the court's word limit, for example, you may be minimizing the chances of having your brief read, as judges really do favor brevity. How do you write for a court that is notoriously dismissive of higher court precedents? How do you best respond to a judge who asks whether you would be content with a remand? These and other critical questions are addressed simply yet insightfully. If your legal education stressed the IRAC approach (Issue, Rule, Application, Conclusion), Scalia and Garner take you a step further by stressing a syllogistic approach. Even if you have already been exposed to all the best ideas about persuading appellate judges, you are still likely to gain much rom reading "Making Your Case" because the authors organize all those ideas in a way that makes them much easier to remember and keep them in mind as you prepare your written and oral arguments. Justice Scalia calls his approach to legal reasoning and argument "textualism," which I understand to mean that his decisions are driven by the language of the law and of the case. My impression from reading many of his decisions is that he is often driven by ideology, so I can't quite square his book with his decisions. I also question the book's fundamental statement that the overriding objective of a brief is to make the court's job easier, as I prefer to write primarily for the purpose of winning the case. My criticisms of "Making Your Case" are miniscule compared to those thrown at it by Richard Posner. But although I find Judge Posner's decisions generally more fair than those of Justice Scalia, I prefer the clarity of Justice Scalia's writing - especially when he teams up with Bryan Garmer. Judge Posner notwithstanding, Scalia and Garner have put together a gem that is likely to prove invaluable for law students as well as for trial and appellate lawyers who are still interested in improving their game. If you fall into either category, buy this book, read it two or three times, and then keep it handy as a reference. It should help you make your case.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2012
F
Verified Purchase
Fig&Friday
Houston, US
★★★★★ 5
A Great Read... (for those in the legal field)
A great gift for those in the legal field. We ordered several for gifts throughout the year.. Made a great little gift basket with a bottle of whiskey :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026

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