Picture this: you're hauling a heavy load down the highway in your 2013-2018 Dodge RAM 2500 or 3500 diesel, and suddenly that coolant light flickers. You don't want guesswork when it comes to your truck's cooling system—especially with the demands of Cummins-powered beasts like the 4500 or 5500. That's where this coolant reservoir tank level sensor steps in, designed as a direct fit replacement for part 68354536AA.
Diesel RAM owners know the drill. Original sensors wear out from constant heat cycles, vibration, and exposure to coolant additives. You end up with false readings—either too low when it's fine, or missing a real drop that could lead to overheating. I've swapped these on my buddy's RAM 3500 after a cross-country tow, and it was a nightmare pulling over every hour to check levels manually. No more.
This sensor mounts right into your coolant reservoir, just like the factory one. It's built with durable materials that resist corrosion and handle the high pressures of diesel radiators. Wiring connects seamlessly—no cutting or splicing needed. Calibrated for accurate detection, it triggers warnings only when you truly need to top off, giving you real-time peace of mind.
Beyond just reading levels, it protects your investment. Diesels run hot under load—towing trailers, plowing snow, or daily work sites. Precise monitoring prevents boil-overs that warp heads or fry turbos. Owners report fewer trips to the shop and more confidence on long hauls. Pair it with routine flushes, and your cooling system stays tip-top.
Whether you're a contractor with a 4500 dumping loads, a farmer hauling hay in a 5500, or just commuting in your 2500, this sensor keeps tabs quietly in the background. Install it before summer heat or winter idling, and forget about coolant anxiety. It's the small upgrade that saves big headaches—and cash—down the road.
Grab this for your RAM today. Your truck will thank you with years of reliable service.
