800YMKIT1
$ 885.00 USD
| /
| Engine Mount Kit | Capacity Per Mount | Stud Size | F&A Deflection |
| 800YMKIT1 | 50 - 170 lbs | 5/8" | 0.09 - 0.21 |
| 800YMKIT2 | 80 - 230 lbs | 5/8" | 0.09 - 0.21 |
| 800YMKIT3 | 120 - 410 lbs | 3/4" | 0.09 - 0.21 |
The R&D Marine Engine Mounts are designed specifically for the rigors of marine applications. The mounts are stiff enough to absorb forward and reverse propeller thrust yet soft enough to isolate drivetrain vibrations from the hull.
To help increase the longevity of the mounts, all steel parts are zinc plated and passivated to limit corrosion. The rubber component is covered by an oil shield to protect it from petroleum-based products.
R&D Marine mounts are preloaded based on the combined engine and transmission weight to limit engine movement. To facilitate the ease of installation, the mounts are height adjusting, and the mounting holes in the base of the mount are slotted to assist in the alignment of the drivetrain.
| Engine Mount Kit | Capacity Per Mount | Stud Size | F&A Deflection |
| 800YMKIT1 | 50 - 170 lbs | 5/8" | 0.09 - 0.21 |
| 800YMKIT2 | 80 - 230 lbs | 5/8" | 0.09 - 0.21 |
| 800YMKIT3 | 120 - 410 lbs | 3/4" | 0.09 - 0.21 |
I ordered this kit to replace the engine mounts for a Yanmar 4JH-5E on my Valiant 40. The mounts do fit the engine perfectly, but they did not fit the fiberglass braces on the boat. I would have worked on this, but the diesel mechanic said that this was no longer necessary. I contacted PYI and they immediately issued a return number. I have bought fenders and a max-prop from PYI before and I have always been impressed by the quality and the service.
Worked with PYI for the last 16 years, always excellent service, answered all my questions and got my orders out on time and the way I needed them shipped. Technical support has been great.
Awesome customer service and technical support at the highest engineering level of PYI' s vast marine product inventory is exceptional. !!!!!!!
Not knowing which type of mounts that were your required, your technical support person went over the various types which was extremely helpful since there were no information available from the engine manufacturer.
Fits and works great!
Great pre-sale customer support!! The mounts were a perfect fit.
I picked these because of the stainless steel shield over the rubber parts. This, along with the coating on the base is a much better design than the Vetus mounts that were replaced. The bolts that hold the mount into the stringers were also replaced since the base is thicker than the old mounts.
1) I chatted online with Eric Young who was excellent in helping me to identify my old mounts & provide order number for new
2) a couple days later, once I’d confirmed the old mounts were toast (threads rusted so bad they were unlikely to be adjustable for realignment) I was able to go online & easily order the correct replacements
3) AND specify rapid shipment vis UPS that actually worked across the border and up into rural Canada.
Shipment worked, mounts bolted directly in place, and alignment was easy. Lots o’ stars for PYI.
great product and service, set arrived with one mount wrong weight raqnge replacement was overnighted along with prepaid return lable for wrong mount. The R&D mounts are high quality, comparing the original Yanmar mounts to the R&D mounts I'll just say is like comparing a ford pinto to ferrari
I called to ask about motor mounts and I was immediately connected to an engineer who helped answer all of my questions about the mounts compatibility and performance. I have not yet installed these mounts on my boat, but I'm confident they'll work great.
Sales assisted for seamless return of incorrect parts. Thanks
Excellent product delivered promptly as requested. However, I erred in ordering. These are not low profile mounts and we're 10 -15 mm too tall to fit my application. All other dimensions were a perfect fit. I regret that I won't be able to observe how these mounts attenuate vibration in service.
Engine Mounts - Max Load 220 - 440 lbs.
Very well made mounts. Company has very knowledgeable techs for any questions you may have to help you modify your current hardware to these pieces. Certainly will use this contact for future purchases.
GREAT SERVICE
Yanmar Engine Mount Kits
I had these installed on my Yanmar 4JH3-HTE 2 years ago and I can say this was the best decision for my boat. Immediately after installing the engine mounts and starting the motor you could feel the difference in the amount vibration that gets transmitted through the hull.
At the advice of my installer (Marine Max) in Coco FL they said to buy the heavy duty mounts for both sides and not just the starboard side as recommended by the manufacturer.
With the reduced vibration and keeping the engine from shifting out of alignment with the shaft these mounts have reduced my amount of repairs and maintenance.
Great got parts within two days
Hi,
I have to change my engine mounts for a Yanmar 4LHA STP. Could you tell me which is my Yanmar reference?
BR
Jean-Luc
Hello Jean-Luc,
The R&D Marine Engine Mount we suggest is the 800-021YX.
Engine Mount Foot Print and Stude Size: 7.25" to 8.11" Foot Print - 3/4 UNF stud size
Engine Mount Minimum Height: 3.94"
Weight Capacity Per Engine Mount: 120-410 lbs.
Which kit for an Yanmar 3YM30? dry weight is 293 lbs.
Hello,
The 800YMKIT1 would be the correct kit for that engine.
Please advise part numbers for the mounts in the 3GMkit . The Yanmar 3GM30 has 2 X Y75 and 2 X Y100 as the engine centre of gravity is not central to the engine.
As you noted, both the Yanmar 2GM and 3GM use different mounts for the front and rear from the factory.
Because the R&D Marine Engine Mount 800-037Y has a weight range of 50 - 175 pounds / mount, we are able to use the same mount for all four.
Which mounts go on the port side - 1 & 4 marked with a 10 - 3 & 2 with an 11
Hello,
800-010Y go on the oil filter side and the 800-011Y go on the starter side.