LS & LT Engine Block Coolant Threaded Plug

LS & LT Engine Block Coolant Threaded Plug

Marsoni

M251S

$29.99

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

LS & LT Engine Block Coolant Threaded PlugLS & LT Series Engine Block Coolant Water Drain Plug This plug is an OEM replacement threaded plug located on the side of the engine block in between cylinders 1 and 3 on LS blocks and next to cylinder 7 on Gen 5 LT blocks Made from high quality brass for corrosion resistance Comes with pre applied with thread sealant M28 1. 25mm thread Compatible with all GM Gen III, IV, & V, LS and LT series engine blocks Includes 1 coolant drain plug

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I bought a 3 bottle set that included the interior cleaner, cloth cleaner and leather cleaner. All three worked really well when I used them. The cloth cleaner lifted and disolved the surface dirt from the the seats and made easier to use a portable wet vac to vacuum the dirt. The interior cleaner did a far superior job on melting built up dirt on the seats, dashboard, steering wheel and other surfaces. The leather cleaner did pretty much the same as the other two and I can see myself buying this again. It dried quickly too

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Reviewed in the United States on May 31, 2026

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Han

Grantham, US

★★★★★ 5

Easy to use and high quality!

Color: Dark Black, Size: 1 Pack

Got this for my boyfriend in his car complaining about not having a place to hold his phone since his last one broke and he couldnt find one he liked again. It's perfect, zero issues very simple you just place the hooks into the heat/AC vent then screw the holder until it tightens, fit your phone in, done. It's easily adjustable in everyway. The size is perfect, it never moves or slips when driving, and you can fit it anywhere, it seems durable and we've never had it break or fall!

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Reviewed in the United States on May 27, 2026

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Brendan M.

San Leandro, US

★★★★★ 5

The best phone holders for any car and any phone

Color: Dark Black, Size: 1 Pack

One of the best phone holders I’ve ever used! I’ve used this holder for about a year now and it is perfect for my phone; it’s durable and secure on any types of bumps, won’t mess up the angle whatsoever. It has a small hole on the bottom for charging phones. The installation is really easy; you just hook it on your vent which is great compared to other suction mounts. If this one ever breaks, I am sure to purchase the same one; super worth for money.

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Reviewed in the United States on May 24, 2026

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Crabman

Belleville, US

★★★★★ 5

Works well on 2003 Corvette.

Color: Carbon Fiber, Size: 2 Pack

I purchased these for usage in my 2003 Corvette convertible. As much as I enjoy the vehicle, they are extremely insufficient for storage. No "usable" built-in cup holder, no pockets and no flat area that can hold a cell phone. The console and glove box are not ideal in this day and age since the phones are used constantly. Enter these excellent little holders. They mount perfectly on the central vent in the dash. If you slide the bases as far as possible to each side and then tighten them down, the base will overlap the non-moving portion of the vent and keep the unit quite stable. I would suspect this is applicable for any vehicle that has the traditional flat vent fins. The holder has a hook that when fished into the vent, clasps over the back of one of the fins. By hooking the fin, once tightened down (careful not to over due this as the vents are just plastic) the installation is as stable as you can ask for vs any of those goofy clamp types that slide off quite easily, especially as they age and sun softens the pads. Benefit from my mistakes on those bad purchases and stay away from clamp mounts. If you have flat fin vents and are looking for a reliable means to mount a phone, this may be just right for you. Best of luck.

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Reviewed in the United States on April 23, 2026