Mercedes 450SEL Brake Hose Parts

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Mercedes 450SEL Brake Hose
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Please verify size of existing hose prior to ordering, original hose may be blue or black and rated for brake fluid. Replacement hose is now black/gray in color and replaces 34321112459 and N203501 hose...
1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 Mercedes 450SEL
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$26.99
Reg
$28.11
List
$23.53
OEM
Please verify length and connection type on vehicle prior to ordering. 2 per car.
1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 Mercedes 450SEL
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$15.39
Reg
$16.03
List
$25.00
Please verify length and connection type on vehicle prior to ordering.
1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980 Mercedes 450SEL
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Leaves closest warehouse tomorrow.
$17.79
Reg
$18.53
List
$55.00

Based on industry averages you can expect to pay between $15.39 and $26.99 for a Mercedes 450SEL brake hose.

How Do I Know If My Mercedes 450SEL Brake Hose Needs Replacement?

Sometimes the warning signs are right in front of you. If you spot cracks in the hose, or see fluid collecting around the joints, it’s time to take a closer look. A brake pedal that feels soft or takes more effort than you remember might point to a swollen or damaged hose inside. Some folks also see little bulges in the rubber, almost like the hose is puffing out where it shouldn’t. With a car like the 450SEL, age alone works against you. Even if the hose looks fine, five years or more should put them on your list for replacement. Brake hoses don’t usually fail without warning, but skipping routine checks is asking for trouble. For peace of mind, add hose inspection to your regular service stops, especially before longer drives or after the car sits for a while.

What Is The Recommended Procedure For Replacing A Mercedes 450SEL Brake Hose?

This job needs a steady hand and a little patience. Start by raising the car so you can work safely under it. Take off the wheel. Older fittings get stuck, so a spritz of penetrating oil is your friend before you loosen anything. Once you undo the hose fittings, catch the brake fluid that escapes—it can eat paint. Hold the brake caliper steady to protect the rest of the line. When you screw in the new hose, it should be tight, but don’t force it or strip the threads. Bleed the brakes until only clear fluid and no bubbles run out. Best practice is to do both sides at the same time, since hoses age out together. Inspect your work, look for drips, and give the pedal a good press before heading out. That’s how you keep things safe and smooth.

Are There Differences Between OEM And Aftermarket Mercedes 450SEL Brake Hoses?

The short answer is yes. OEM hoses will fit and perform just like factory parts, and that appeals to many owners, especially if you’re protecting a classic. Aftermarket hoses might cost less, and you could find options with upgrades like stainless steel braiding that firms up the pedal feel. Still, not every aftermarket part lines up perfectly—sometimes the length or hardware is off just enough to make the job harder. In the end, reputation matters. Buy from trusted brands and match hardware exactly, and you’ll avoid headaches. Sticking with OEM is common for those keeping their old Mercedes as original as possible, while some don’t mind a well-made upgrade.

What Is The Typical Lifespan Of A Mercedes 450SEL Brake Hose?

You’ll hear a lot of numbers, but five to seven years is a good average. The real world is messy, and things like road salt, storage, and high heat all nibble away at soft rubber. Hoses on cars that sit can even dry out and crack from age alone, even if you rarely drive. That’s why some swap hoses during a bigger brake service or when one part of the system gives you trouble. Waiting for a clear failure can leave you stranded or dealing with a sudden brake problem, so don’t rely on luck. At the first sign of wear—or simply by the calendar—it’s smart to fit new hoses and enjoy the reassurance of solid brakes.

What Are Common Problems After Installing A New Mercedes 450SEL Brake Hose?

Odd pedal feel comes up most often, usually from trapped air that refuses to bleed out. Sometimes the hose leaks at a joint because washers weren’t replaced, or some dirt snuck in during installation. A handful of owners say the brake pedal feels stiffer, especially after switching to stainless lines from the old rubber design; others report a softer pedal. None of this is unusual. Double check every connection, watch for slow leaks, and keep an eye on fluid levels for the next week or two. Taking a little time now can save you a lot of worry later.

Why Shop For Your Mercedes 450SEL Brake Hose At AutohausAZ?

The right part, a fair price, and fast delivery make repairs less stressful. That’s the promise here. We know car fixes aren’t always planned, so we make sure your order goes out as soon as possible. Picked the wrong hose? No big deal—the return is easy, no runaround. Our team knows these cars and can help if you have a question, too. We only carry trusted brands, and we’d never put something on your Mercedes that we wouldn’t trust on our own. Shopping here, you get service that listens, prices that don’t poke holes in your wallet, and a warehouse that ships fast. We’re car people helping other car people keep their rides on the road, simple as that. Try us and see how smooth it goes.