Stand Mixer Set Screw 1/4"-28X3/8", for KitchenAid, AP3177651, PS734239, 3400203

Stand Mixer Set Screw | Replaces KitchenAid 3400203 | OEM-Compatible

Secure your stand mixer’s internal components with this brand-new set screw, designed to replace KitchenAid part number 3400203. This OEM-style screw helps lock key assemblies in place—such as the planetary shaft or gear housing—ensuring smooth operation and long-term durability. Ideal for resolving loose attachments, gear misalignment, or vibration issues in select tilt-head mixers.

⚙️ Product Specifications:

• Type: Set screw for internal mixer assembly
• Condition: Brand New – Unused
• Fitment: OEM-matched for KitchenAid tilt-head mixers
• Material: Hardened steel with hex socket head
• ️ OEM Reference #: 3400203
• Alternate Part #: AP3177651, 1410912, 4159264, AH734239, EA734239, PS734239, W10287054
• Compatible Brands: KitchenAid
• Function: Locks planetary shaft or gear components securely

✅ Fits Models (Partial List):

3K45SS , 4K45SS , 4K45SS7OB0 , 4K45SS7WH0 , 4K45SSDWH-1 , 4K45SSWH-1 , 4KSM105GBCBU0 , 4KSM105GBCER0 , 4KSM105GBCMC0 , 4KSM150PSAC0 , 4KSM150PSBU0 , 4KSM150PSBW0 , 4KSM150PSER0 , 4KSM150PSGN0 , 4KSM150PSGR0 , 4KSM150PSLV0 , 4KSM150PSMC0 , 4KSM150PSMY0 , 4KSM150PSOB0 , 4KSM150PSPK0 , 4KSM150PSPT0 , 4KSM150PSTG0 , 4KSM150PSWH0 , 4KSM90PS7BU0 , 4KSM90PS7ER0 , 4KSM90PS7OB0 , 4KSM90PS7WH0 , 4KSM90PSAC0 , 4KSM90PSBU0 , 4KSM90PSCP0 , 4KSM90PSCR0 , 4KSM90PSER0 , 4KSM90PSGN0 , 4KSM90PSGR0 , 4KSM90PSMC0 , 4KSM90PSMY0 , 4KSM90PSNK0 , 4KSM90PSOB0 , 4KSM90PSPK0 , 4KSM90PSWH0 , 4KSM90PSWW0 , 5K45SS , 5K45SSBWH0 , 5K45SSBWH4 , 5K45SSCWH0 , 5K45SSEWH0 , 5K45SSEWH4 , 5K45SSSDWH4 , 5K45SSWH-0 , 5K45SSWH3 , 5K45SSWH4 , 5KSM1500SBMS4 , 5KSM150PSAAC0 , 5KSM150PSABU0 , 5KSM150PSABW0 , 5KSM150PSABY0 , 5KSM150PSACR0 , 5KSM150PSACU0 , 5KSM150PSACV0 , 5KSM150PSAER0 , 5KSM150PSAES0 , 5KSM150PSAGA0 , 5KSM150PSAGC0 , 5KSM150PSAGR0 , 5KSM150PSAIC0 , 5KSM150PSAMC0 , 5KSM150PSAMY0 , 5KSM150PSANK0 , 5KSM150PSAOB0 , 5KSM150PSAPK0 , 5KSM150PSAPM0 , 5KSM150PSAPT0 , 5KSM150PSATG0 , 5KSM150PSAWH0 , 5KSM150PSAYP0 , 5KSM150PSBAC0 , 5KSM150PSBAC4 , 5KSM150PSBAP4 , 5KSM150PSBBK4 , 5KSM150PSBBL4 , 5KSM150PSBBU0 , 5KSM150PSBBU4 , 5KSM150PSBBW4 , 5KSM150PSBBY4 , 5KSM150PSBBZ4 , 5KSM150PSBCA4 , 5KSM150PSBCB4 , 5KSM150PSBCD4 , 5KSM150PSBCL4 , 5KSM150PSBCP4 , 5KSM150PSBCS4 , 5KSM150PSBCV4 , 5KSM150PSBCZ4 , 5KSM150PSBEB4 , 5KSM150PSBER0 , 5KSM150PSBER4 , 5KSM150PSBES4 , 5KSM150PSBGA4 , 5KSM150PSBGP4 , 5KSM150PSBGR0 , 5KSM150PSBGR4 , 5KSM150PSBIC0 , 5KSM150PSBIC4 , 5KSM150PSBLT4 , 5KSM150PSBLV0 , 5KSM150PSBLV4 , 5KSM150PSBMC4 , 5KSM150PSBMS4 , 5KSM150PSBMY0 , 5KSM150PSBMY4 , 5KSM150PSBNK0 , 5KSM150PSBNK4 , 5KSM150PSBOB0 , 5KSM150PSBOB4 , 5KSM150PSBPE4 , 5KSM150PSBPK4 , 5KSM150PSBPM4 , 5KSM150PSBPT4 , 5KSM150PSBRI4 , 5KSM150PSBTG0 , 5KSM150PSBTG4 , 5KSM150PSBWH0 , 5KSM150PSBWH4 , 5KSM150PSBYP4 , 5KSM150PSCAC0 , 5KSM150PSCBU0 , 5KSM150PSCCA0 , 5KSM150PSCCZ0 , 5KSM150PSCER0 , 5KSM150PSCGR0 , 5KSM150PSCIC0 , 5KSM150PSCMC0 , 5KSM150PSCNK0 , 5KSM150PSCOB0 , 5KSM150PSCPK0 , 5KSM150PSCQG0 , 5KSM150PSCTG0 , 5KSM150PSCWH0 , 5KSM150PSDCA0 , 5KSM150PSDEB0 , 5KSM150PSDER0 , 5KSM150PSDGA0 , 5KSM150PSDOB0 , 5KSM150PSDPK0 , 5KSM150PSDRI0 , 5KSM150PSDSR0 , 5KSM150PSDTG0 , 5KSM150PSDWH0 , 5KSM150PSDYP0 , 5KSM150PSEAC0 , 5KSM150PSEAC4 , 5KSM150PSEAP4 , 5KSM150PSEBK4 , 5KSM150PSEBR4 , 5KSM150PSEBU0 , 5KSM150PSEBU4 , 5KSM150PSEBW4 , 5KSM150PSEBY4 , 5KSM150PSEBZ4 , 5KSM150PSECA4 , 5KSM150PSECB4 , 5KSM150PSECD4 , 5KSM150PSECH4 , 5KSM150PSECL4 , 5KSM150PSECP4 , 5KSM150PSECR0 , 5KSM150PSECR4 , 5KSM150PSECS4 , 5KSM150PSECV0 , 5KSM150PSECV4 , 5KSM150PSECZ4 , 5KSM150PSEEB4 , 5KSM150PSEER0 , 5KSM150PSEER4 , 5KSM150PSEES4 , 5KSM150PSEGA4 , 5KSM150PSEGC4 , 5KSM150PSEGP0 , 5KSM150PSEGP4 , 5KSM150PSEGR0 , 5KSM150PSEGR4 , 5KSM150PSEIC0 , 5KSM150PSEIC4 , 5KSM150PSELT4 , 5KSM150PSEMC0 , 5KSM150PSEMC4 , 5KSM150PSEMS4 , 5KSM150PSEMY0 , 5KSM150PSEMY4 , 5KSM150PSENK0 , 5KSM150PSENK4 , 5KSM150PSEOB0 , 5KSM150PSEOB4 , 5KSM150PSEPE4 , 5KSM150PSEPK0 , 5KSM150PSEPK4 , 5KSM150PSEPM4 , 5KSM150PSEPT0 , 5KSM150PSEPT4 , 5KSM150PSERI4 , 5KSM150PSETG0 , 5KSM150PSETG4 , 5KSM150PSEWH0 , 5KSM150PSEWH4 , 5KSM150PSEYP4 , 5KSM150PSGCP0 , 5KSM150PSIAC4 , 5KSM150PSIER4 , 5KSM150PSIGA4 , 5KSM150PSIGC4 , 5KSM150PSIMC4 , 5KSM150PSITG4 , 5KSM150PSIWH4 , 5KSM150PSRCU0 , 5KSM150PSRER0 , 5KSM150PSROB0 , 5KSM150PSRTG0 , 5KSM150PSRWH0 , 5KSM150PSSBU0 , 5KSM150PSSBU4 , 5KSM150PSSER0 , 5KSM150PSSER4 , 5KSM150PSSGR0 , 5KSM150PSSGR4 , 5KSM150PSSMY0 , 5KSM150PSSMY4 , 5KSM150PSSNK0 , 5KSM150PSSNK4 , 5KSM150PSSOB0 , 5KSM150PSSOB4 , 5KSM150PSSPM4 , 5KSM150PSSWH0 , 5KSM150PSSWH4 , 5KSM150PSZER0 , 5KSM150PSZOB0 , 5KSM155GBABK0 , 5KSM155GBASA0 , 5KSM156ABZ0 , 5KSM156ACA0 , 5KSM156AEB0 , 5KSM156ALT0 , 5KSM156AMS0 , 5KSM156AQC0 , 5KSM156ARI0 , 5KSM156ASR0 , 5KSM156BBZ4 , 5KSM156BCA4 , 5KSM156BEB4 , 5KSM156BFP4 , 5KSM156EBZ4 , 5KSM156ECA4 , 5KSM156EEB4 , 5KSM156EFP4 , 5KSM156PSACA0 , 5KSM156PSBCA4 , 5KSM156PSECA4 , 5KSM160APSACA0 , 5KSM160APSACS0 , 5KSM160APSCCA0 , 5KSM160APSCCS0 , 5KSM160APSWCA0 , 5KSM160APSWCS0 , 5KSM160PSAAC0 , 5KSM160PSACU0 , 5KSM160PSAER0 , 5KSM160PSAOB0 , 5KSM45EWH4 , 7K45SS , 7KSM150PSZBW0 , 7KSM150PSZCB0 , 7KSM150PSZCL0 , 7KSM150PSZCU0 , 7KSM150PSZER0 , 7KSM150PSZGA0 , 7KSM150PSZGR0 , 7KSM150PSZMY0 , 7KSM150PSZOB0 , 7KSM150PSZPT0 , 7KSM150PSZTG0 , 7KSM150PSZWH0 , 7KSM155GBZCA0 , 8KSM90TWH0 , 9KSM150PSBU0 , 9KSM150PSER0 , 9KSM150PSGR0 , 9KSM150PSMC0 , 9KSM150PSMY0 , 9KSM150PSOB0 , 9KSM150PSPK0 , 9KSM150PSWH0 , 9KSM160FGBU0 , 9KSM160FGMC0 , 9KSM90GN1 , 9KSM95AC0 , 9KSM95GA0 , 9KSM95TG0 , 9KSM95YP0 , BEA30AEAIM0 , BEA30ATAIM0 , BEA30AVAIM0 , BEA30AZAIM0 , K45SS , K45SSAC-0 , K45SSAL-0 , K45SSDAC-0 , K45SSDAL-0 , K45SSOB0 , K45SSWH-0 , K45SSWH3 , K45WSSWH-0 , KSM100PSDP0 , KSM100PSER0 , KSM100PSMC0 , KSM100PSOB0 , KSM100PSTCB0 , KSM100PSWH0 , KSM100PSWW0 , KSM105GBCBU0 , KSM105GBCER0 , KSM105GBCMC0 , KSM120BLQBU0 , KSM120BLQCB0 , KSM120BLQCL0 , KSM120BLQCU0 , KSM120BLQER0 , KSM120BLQGA0 , KSM120BLQGC0 , KSM120BLQMY0 , KSM120BLQOB0 , KSM120BLQSM0 , KSM120BLQTG0 , KSM120BLQWH0 , KSM120BLQWM0 , KSM120ER0 , KSM120MC0 , KSM120OB0 , KSM120WH0 , KSM150 , KSM150-1 , KSM150AGBCA0 , KSM150AGBCS0 , KSM150AGBES0 , KSM150AGBFP0 , KSM150AGBRI0 , KSM150APSBS0 , KSM150APSCS0 , KSM150APSGD0 , KSM150EPAQ0 , KSM150EPBU0 , KSM150EPER0 , KSM150EPGA0 , KSM150EPMC0 , KSM150EPOB0 , KSM150EPTG0 , KSM150EPWW0 , KSM150PSAC0 , KSM150PSAC1 , KSM150PSAP0 , KSM150PSAQ0 , KSM150PSBF0 , KSM150PSBK0 , KSM150PSBL0 , KSM150PSBU0 , KSM150PSBU1 , KSM150PSBW0 , KSM150PSBX0 , KSM150PSBY0 , KSM150PSCB0 , KSM150PSCG0 , KSM150PSCH0 , KSM150PSCL0 , KSM150PSCL1 , KSM150PSCN0 , KSM150PSCO0 , KSM150PSCPK0 , KSM150PSCT0 , KSM150PSCU0 , KSM150PSCV0 , KSM150PSCY0 , KSM150PSCZ0 , KSM150PSER0 , KSM150PSER1 , KSM150PSES0 , KSM150PSFB0 , KSM150PSGA0 , KSM150PSGB0 , KSM150PSGC0 , KSM150PSGG0 , KSM150PSGN0 , KSM150PSGN1 , KSM150PSGP0 , KSM150PSGR0 , KSM150PSGR1 , KSM150PSIC0 , KSM150PSLM0 , KSM150PSLR0 , KSM150PSLV0 , KSM150PSMA0 , KSM150PSMC0 , KSM150PSMG0 , KSM150PSML0 , KSM150PSMN0 , KSM150PSMR0 , KSM150PSMY0 , KSM150PSMY1 , KSM150PSOB0 , KSM150PSOB1 , KSM150PSOR0 , KSM150PSPE0 , KSM150PSPK0 , KSM150PSPL0 , KSM150PSPN0 , KSM150PSPT0 , KSM150PSQG0 , KSM150PSRB0 , KSM150PSRC0 , KSM150PSSF0 , KSM150PSSM0 , KSM150PSSU0 , KSM150PSSY0 , KSM150PSTB0 , KSM150PSTD0 , KSM150PSTG0 , KSM150PSVN0 , KSM150PSVT0 , KSM150PSWB0 , KSM150PSWG0 , KSM150PSWH0 , KSM150PSWM0 , KSM150PSWW0 , KSM150PSYC0 , KSM150PSYP0 , KSM151 , KSM152GBCP0 , KSM153PSAQ0 , KSM153PSBU0 , KSM153PSCB0 , KSM153PSCL0 , KSM153PSER1 , KSM153PSGA0 , KSM153PSGC0 , KSM153PSMC1 , KSM153PSMY0 , KSM153PSOB1 , KSM153PSTG0 , KSM153PSWH1 , KSM154GBQ2AZ0 , KSM154GBQ2BZ0 , KSM154GBQ2CA0 , KSM154GBQ2CV0 , KSM154GBQ2CZ0 , KSM154GBQ2EB0 , KSM154GBQ2FP0 , KSM154GBQ2GD0 , KSM154GBQ2LT0 , KSM154GBQ2PB0 , KSM154GBQ2PM0 , KSM154GBQ2RI0 , KSM154GBQ2SA0 , KSM154GBQ2SR0 , KSM154GBQ2TF0 , KSM154GBQ2UB0 , KSM154GBQAC0 , KSM154GBQBF0 , KSM154GBQBW0 , KSM154GBQCL0 , KSM154GBQCU0 , KSM154GBQER0 , KSM154GBQES0 , KSM154GBQGA0 , KSM154GBQGC0 , KSM154GBQMY0 , KSM154GBQOB0 , KSM154GBQSM0 , KSM154GBQTG0 , KSM154GBQWH0 , KSM155GBAZ0 , KSM155GBCA0 , KSM155GBCZ0 , KSM155GBEB0 , KSM155GBFP0 , KSM155GBGD0 , KSM155GBPB0 , KSM155GBQC0 , KSM155GBRI0 , KSM155GBSA0 , KSM155GBSR0 , KSM155GBTD0 , KSM155GBTF0 , KSM155GBUB0 , KSM158GBCA0 , KSM160APSCA0 , KSM160APSCS0 , KSM160PSER0 , KSM160PSMC0 , KSM160PSOB0 , KSM160PSWH0 , KSM45B3WH0 , KSM75 , KSM75ER0 , KSM75SL0 , KSM75WH1 , KSM85PBBK0 , KSM85PBBU0 , KSM85PBER0 , KSM85PBGA0 , KSM85PBGC0 , KSM85PBMY0 , KSM85PBOB0 , KSM85PBSL0 , KSM85PBSM0 , KSM85PBWH0 , KSM85PSBK0 , KSM85PSSL0 , KSM88PSCAQ0 , KSM88PSCER0 , KSM88PSCMC0 , KSM88PSQ2AQ0 , KSM88PSQ2BL0 , KSM88PSQ2BU0 , KSM88PSQ2CB0 , KSM88PSQ2CL0 , KSM88PSQ2ER0 , KSM88PSQ2GA0 , KSM88PSQ2GC0 , KSM88PSQ2GR0 , KSM88PSQ2MY0 , KSM88PSQ2OB0 , KSM88PSQ2PK0 , KSM88PSQ2PT0 , KSM88PSQ2SL0 , KSM88PSQ2TG0 , KSM88PSQ2WH0 , KSM88PSQ3AQ0 , KSM88PSQ3BU0 , KSM88PSQ3CB0 , KSM88PSQ3CL0 , KSM88PSQ3CO0 , KSM88PSQ3ER0 , KSM88PSQ3GA0 , KSM88PSQ3GC0 , KSM88PSQ3GR0 , KSM88PSQ3MY0 , KSM88PSQ3OB0 , KSM88PSQ3PK0 , KSM88PSQ3SL0 , KSM88PSQ3TG0 , KSM88PSQ3WH0 , KSM88PSQAC0 , KSM88PSQBF0 , KSM88PSQBL0 , KSM88PSQBW0 , KSM88PSQCE0 , KSM88PSQER0 , KSM88PSQGC0 , KSM88PSQGR0 , KSM88PSQOB0 , KSM88PSQPT0 , KSM88PSQSM0 , KSM88PSQWH0 , KSM90ER4 , KSM90MC4 , KSM90OB4 , KSM90PSAC0 , KSM90PSBC0 , KSM90PSBU0 , KSM90PSCP0 , KSM90PSCR0 , KSM90PSCV0 , KSM90PSER0 , KSM90PSGN0 , KSM90PSGR0 , KSM90PSMC0 , KSM90PSMY0 , KSM90PSNK0 , KSM90PSOB0 , KSM90PSPK0 , KSM90PSWH0 , KSM90PSWW0 , KSM95AC0 , KSM95BU0 , KSM95BY0 , KSM95CU0 , KSM95ER0 , KSM95GA0 , KSM95GR0 , KSM95IC0 , KSM95OB0 , KSM95PWH0 , KSM95SM0 , KSM95TB0 , KSM95TCB0 , KSM95TG0 , KSM95WH0
(Please verify compatibility before purchase.)

️ Installation Tips:

• Unplug mixer before servicing
• Access planetary housing or gear assembly as needed
• Use appropriate hex driver to remove old screw
• Insert new screw and tighten securely—do not overtighten
• ✅ Confirm alignment and smooth rotation before reassembly

⚠️ Installation Disclaimer:

This set screw is intended for use only with compatible KitchenAid stand mixer models. Buyer is responsible for verifying model and part number compatibility before purchase. Installation should follow manufacturer guidelines. Seller is not liable for damage caused by improper fitment, stripped threads, or misuse.

Lock it down. OEM-grade precision. Built for KitchenAid mixers.