Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - Nitrile

Marsoni

M251S

$10.64

Get it in 3 business days with 1 day shipping. Friday, May 29

Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - NitrileProduct Details : Solid Contoured Backup Ring 5. 875" x 6. 125" x 0. 050" Nitrile Part No: 8 257 N90 Product Category: O Rings Product Type: Solid Contoured Backup Ring Series: 8 XXX Dash No.: 257 Material(s): Nitrile Material Code: NBR Durometer: 90 Temperature Range: 40F to +250F ( 40C to +121C) System Of Measurement: Inch Dimensions: 5. 875" x 6. 125" x 0. 050" Nominal I. D. (d) : 5. 875" Nominal O. D. (D) : 6. 125" Nominal Width (W): 0. 125" R: 0.

Easy Shipping

Quick Dispatch:

Your Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - Nitrile orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - Nitrile ships.

Need Help?
Questions about Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - Nitrile, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Solid Contoured Backup Ring 5.875" x 6.125" x 0.050" - Nitrile in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

For those of you with the 135 hp mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 3, 2024

Verified Purchase

Carlton Earley

Omaha, US

★★★★★ 5

fixed issue

stopped the overheat issue on my outboard!!!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on August 6, 2025

Verified Purchase

Brett W.

Belleville, US

★★★★★ 5

Carries all the current I want. Super flexible, great price

Size: 8 AWG 3 ft per color, Color: Red and Black

Very nice high quality. Somebody tried to tell me this was aluminum strands. But after test sanding an exposed end, I could see copper color. I believe the confusion is they are individually tinned strands? 🤷 Just sayin...

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 28, 2025

Verified Purchase

Noce

Lowell, US

★★★★★ 5

good quality.

Size: 8 AWG 3 ft per color, Color: Red and Black

The wire worked very well for my project.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 22, 2024