This is for a new upgraded heavy duty polymer Bowden cable adjuster for 1984 1985 W123's and W126 300SD's with the cable type shown. One year warranty included with illustrated instructions in a PDF file. Install takes about 15 minutes. While cable lengths and attachments at the transmission can vary Mercedes used the same style adjuster at the throttle/upper end of the cable during certain years. Compare yours to be sure that this is the correct part for your application. If you are unsure send a photo via messages. 2023 All Rights Reserved. If you are just now looking for one of these cables most have been long discontinued by Mercedes. Many listings you see online are part vendors keeping their old links active to get you to visit their site. This new adjuster is a direct replacement of your existing piece. After decades of exposure to an engine compartment these adjusters become brittle and eventually break. Even if you find a "good used" cable the adjuster piece is still aging out. As far as labor goes if the only problem is the adjuster then just replace the adjuster. No need to R R the entire cable which requires more labor plus you add the risk of creating a leak down at the transmission end. The original design by Mercedes has actually done very well given the materials available to them. This was also back when their motto was "longevity." Note that any threaded screw/nut combination requires the parts to be made of the same material if they're going to last. A metal adjuster would quickly wear out the plastic nut. An all metal setup would wear out the stranded cable constantly moving back and forth through the adjuster. Mercedes' final design focused on the stranded cable outlasting the rest of it. This new adjuster piece maintains their design with more mass and modern polymers. As mentioned installation averages 15 minutes including removal of your old piece. This adjuster installs in place without cutting or separating your cable in any way. The alternative is replacing the whole cable which requires either a mechanic or a longer DIY project under the car. Replacing the adjuster is 20x easier. If Mercedes offered a cable and also offered just the replacement adjuster I'd get the replacement adjuster and leave the rest of the cable alone. The adjuster lets you skip the mechanic/labor costs/down time of replacing the whole cable. Symptoms of a bad adjuster can include the transmission appearing to slip or flare as well as late shifting or early shifting. All of these conditions will eventually cost you a transmission. This demanding little piece has taken over a year of R D including months spent testing over 100 design variants. After long drawn out expenses + site seller fees + PayPal transaction fees + shipping fees it's barely worth it on here because of all the middle men. If it helps I can go a bit lower without the warranty. To protect intellectual property for now the item you receive will look different from the images shown. I did all of this to help keep these cars on the road. It would be so much easier if Mercedes would just stop discontinuing parts for our older cars but that won't change when they make more selling $2,400+ headlight assemblies for their newer cars. I cover all shipping and warranties so if you want to help reduce costs a little sign up to Bonanza here and click "Register" at the top right of that page. Refresh this page to buy once you have registered. Thank you. Shifter detent passing kickdown 722.416 722.405 Free shipping in the U.S. If there's a problem let me know and I'll work with you. My work keeps me away often so to be safe, handling time to get this shipped out is 1 week. SHIPPING ADDRESS: I can only send your item to the registered shipping address at time of payment.