Mercedes 300SE Radiator Hose Parts

Showing 6 out of 6 part(s) found in our catalog.

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Mercedes 300SE
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Belts and Cooling
Subcategory
Radiator Coolant Hose
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1988, 1989, 1990, 1991 Mercedes 300SE, 300SEL
Ships Today
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Leaves closest warehouse today if ordered before 2 PM MST.
$6.89
Reg
$7.18
List
$10.00
1992, 1993 Mercedes 300SE
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Leaves closest warehouse today if ordered before 2 PM MST.
$7.39
Reg
$7.70
List
$11.50
1 per car.
1992, 1993 Mercedes 300SE
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Leaves closest warehouse today if ordered before 2 PM MST.
$22.39
Reg
$23.32
List
$89.00
OEM
1 per car.
1988, 1989, 1990, 1991 Mercedes 300SE, 300SEL
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Leaves closest warehouse today if ordered before 2 PM MST.
$8.99
Reg
$9.36
List
$33.00
OEM
1 per car.
1992, 1993 Mercedes 300SE
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Leaves warehouse within 1-2 business days, if still available when processed.
$15.79
Reg
$16.45
List
$22.00
OEM
1 per car.
1988, 1989, 1990, 1991 Mercedes 300SE, 300SEL
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Leaves closest warehouse today if ordered before 2 PM MST.
$11.69
Reg
$12.18
List
$23.50

Based on industry averages you can expect to pay between $6.89 and $22.39 for a Mercedes 300SE radiator hose.

What Are The Signs Of A Failing Mercedes 300SE Radiator Hose?

Problems start to show up in pretty plain ways. You might spot cracks or splitting along the hose, or notice the rubber has started to swell in strange spots. Sometimes, a leak draws a small puddle of coolant right under the nose of your car. If the hose feels unusually soft, almost squishy to the touch, it’s breaking down from the inside out. The engine temperature can creep up, and the gauge may dance higher than usual, signaling problems in the cooling system. When a hose fails, a quick look underneath often reveals the trouble: leaking coolant, low pressure, or just a hose that no longer fits tight. Swapping out a worn hose early saves a lot of grief down the road.

How Often Should The Mercedes 300SE Radiator Hose Be Replaced?

Inspection works best every 30,000 to 40,000 miles, or whenever coolant gets flushed. But the real key is paying attention to feel and appearance. Over time, heat and chemicals weaken the rubber, even if you drive less. At the first hint of a leak, mushy spot, or visible wear—don't wait. Change it out. Folks who see harsh summers or brutal winters should peek at the hose during oil changes. Catching these early problems can help you sidestep a mess far from home.

Which Hose Is The Upper And Which Is The Lower On The Mercedes 300SE?

On the 300SE, the upper radiator hose stretches from the top of the radiator across to the engine’s thermostat housing. The lower hose runs low, linking the radiator’s bottom to the water pump. You’ll see the upper hose up front when you look under the hood; the lower one hides near the bottom, close to the radiator’s drain. Both are easy enough to trace by hand, but a quick skim in the manual can settle any doubt when swapping them.

What Size Hose Clamps Are Needed For The Mercedes 300SE Radiator Hose?

Most 300SE radiator hoses need clamps that fit around a 1.5-inch diameter. Stainless worm-gear clamps stand up best to the engine heat and pressure. Always check the exact size on your replacement hose, as even a minor mismatch can allow leaks. Factory-style clamps fit best and grip evenly, so try to reuse them if possible or match the same type. Tighten with care—not too loose, not too tight, since too much pressure scars the hose.

Are Aftermarket Radiator Hoses Reliable For The Mercedes 300SE?

If you pick a solid brand, aftermarket hoses hold up well and cost less than dealer parts. The trick is to skip anything that looks or feels flimsy. A good hose should be tough, flexible, and built to handle the engine’s heat. Check that the curve and length match your original, or installation gets tricky. Plenty of drivers go with high-grade aftermarket or OEM hoses with no issues. Inspect the replacement before you install it, and you’ll save trouble later on.

Why Choose AutohausAZ For Your Mercedes 300SE Radiator Hose?

Shopping for a Mercedes 300SE radiator hose doesn’t need to be complicated or expensive. At AutohausAZ, we set out to make the whole process as simple and stress-free as possible. We work to keep our prices lower than most big-name dealerships, so our customers never have to worry about breaking the bank on high-quality parts. Our discounted options for the Mercedes 300SE radiator hose give you reliable performance for a fraction of the usual cost, all while meeting or exceeding OEM specs. We ship fast from our well-stocked warehouse, so you get your order quickly and can get back on the road without long waits. If the part isn’t quite right or you need to make a return, we keep the whole process straightforward and hassle-free. We know that when you’re fixing a car, you want less red tape and more results, so our team works to make that happen. With great prices, fast delivery, and easy returns, shopping at AutohausAZ means you can focus on what matters—getting your Mercedes running like new. Our goal is for you to feel confident every step of the way, whether you’re a first-time DIYer or a seasoned pro. Give us a shot the next time you need a radiator hose, and see why so many Mercedes owners keep coming back.