9704230 Blender Coupler Clutch replacment with Spanner KitCompatible for KitchenAid KSB5 KSB3 and replaces part numbers: 9704230, WP9704230VP, WP9704230,AP2930430 PS401661Easy to install, Use a flat blade screwdriver to pry the coupling off, then wipe the threads off with a dry cloth, and screw the new coupling on counter-clockwiseSix rubber teeth ,reverse aluminum thread. Long lifespan.If your Blender blades didn't spin, it may says you need change a new coupler.Blender Coupler: OD 36mm,center hole diameter 6mmSpanner:length 115mm ,diameter 7mmCompatible for most top name : for KitchenAidReplaces part No. 9704230,AP2930430, 831718, AH401661, EA401661, PS401661,WP9704230VP, WP9704230There are two ways to remove the old clutch1. you can use a thin 7mm spanner to grip the flats on the spindle under the coupler then turn the coupler clockwise.2. you can use a large flat-bladed screwdriver to gently pry the coupler off the spindle.Fits follwing Models:5KSB52ACR4,5KSB52AER4,5KSB52AGR4,5KSB52AMC4 ,5KSB52ATG4,5KSB52AWH4,5KSB52BAC4,5KSB52BAC5 ,5KSB52BBU4,5KSB52BBU5,5KSB52BER4,5KSB52BER5 ,5KSB52BGR4,5KSB52BGR5,5KSB52BMY4,5KSB52BMY5 ,5KSB52BNK4,5KSB52BNK5,5KSB52BOB4,5KSB52BOB5 ,5KSB52BPM5,5KSB52BWH4,5KSB52BWH5,5KSB52EAC4 ,5KSB52EAC5,5KSB52EBU4,5KSB52EBU5,5KSB52ECR4 ,5KSB52ECR5,5KSB52ECV5,5KSB52EER4,5KSB52EER5 ,5KSB52EGR4,5KSB52EGR5,5KSB52EMY4,5KSB52EMY5 ,5KSB52ENK4,5KSB52ENK5,5KSB52EOB4,5KSB52EOB5 ,5KSB52EPM5,5KSB52ETG4,5KSB52ETG5,5KSB52EWH4 ,5KSB52EWH5,5KSB52SBU4,5KSB52SBU5,5KSB52SER4 ,5KSB52SER5,5KSB52SGR4,5KSB52SGR5,5KSB52SOB4 ,KSB33,KSB3-3,KSB3-4,KSB5,KSB53,KSB5-3,KSB5-4Material:ABScolour:Gray+blackPackage Contents:6 x Drive Coupler1 x SpannerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.