1、Replacing part numbers for reference: 6420907737/6420905437/64220903237/6420905037/64220905437. 2、Specially fit for Mercedes Benz W164 ML/W166 ML/X164 GL/X166 GL/W211 E/W212 E/W207 E, etc. 3、Repair kit which has original standard, designed to permanently fix the swirl flap mechanism. 4、Can directly replace the broken or shabby one, avoid malfunctioning of the intake manifold caused by the connection points of the linkage which operate swirl flaps wear out. 5、Made of high quality ABS plastic and metal material for maximum durability, has stable performance. Item Type: Intake Mainfold Runner Connecting Rod Material: ABS Plastic+Metal Color: Black+SilverRod Length: Approx. 23cm/9.05in Manufacturer Part Number: 6420907737 / 6420905437 / 64220903237 / 6420905037/ 64220905437 Fault Symptoms: 1. Poor idle 2. Power loss 3. Engine management light 4. Fail emission system 5. Delayed acceleration You can easily diagnose the fault yourself by removing the engine cover and inspecting the intake manifold to see the condition of it.Fitment: Fit for Mercedes Benz OM642 / OM642M 3.0 3.2 CDI / CRD V6 DIESEL ENGINES Fit for MERCEDES W164 ML Fit for MERCEDES W166 ML Fit for MERCEDES X164 GL Fit for MERCEDES X166 GL Fit for MERCEDES W211 E Fit for MERCEDES W212 E Fit for MERCEDES W207 E Fit for MERCEDES W251 R Fit for MERCEDES 216 CL Fit for MERCEDES W221 S Fit for MERCEDES VITO VIANO W639 Fit for MERCEDES SPRINTER 906 W906 Fit for MERCEDES W219 CLS 2 x Runner Connecting Rods 16 x Plastic Accessory