Quick-Reference Repair Parts for
Graco 450 st

Replaces OEM P/N	Bedford P/N	Description / Reference / Notes
Repair Kits
Displacement Pump (Fluid Section)
224-998	- - -	Replaced by 235-703
235-703	20-1856	Repair Kit with Leather & Polyethylene Packings
Piston Rods
235-709	57-1946	Piston Rod, chrome plated stainless steel
Cylinders & Sleeves
235-708	57-2099	Cylinder
Carbide Ball Seats, Check Valves & Check Balls
Upper Ball Seat (Outlet Seat)
218-197	58-1461	Piston Valve
105-444	9-140	Piston Ball (stainless steel)
Lower Ball Seat (Intake Seat)
224-966	58-2215	Intake Valve
105-445	9-183	Intake Ball (stainless steel)
Miscellaneous Fluid Section Repair Parts
105-522	43-1253	U-Cup Wiper, piston valve
108-526	15-1498	Teflon O-Ring, at top of cylinder
111-603	15-1792	Teflon O-Ring, intake valve
176-751	19-2628	Lower Jam Nut, piston
176-758	- - -	Replaced by 193-047
176-759	19-1286	Ball Stop Pin, intake
176-760	- - -	Ball Guide, intake
176-817	23-3251	Retaining Spring, attach pin at top of piston rod
176-818	44-2654	Attach Pin, at top of piston rod
180-656	17-2424	Dust Plug, upper packing nut
186-652	18-1846	Backup Washer, piston valve
187-614	- - -	Upper Locking Nut, top of cylinder, 1-3/8" thread
193-047	- - -	Upper Packing Nut & Wet Cup
Dump Valves, Prime/Spray Valves, Pressure Release Valves, and Components
Complete Assembly
235-014	20-2324	Dump Valve Repair Kit, 1/4-turn valve with pin through handle
239-914	20-2806	Dump Valve Repair Kit with solvent resistant o-ring
Components
111-600	19-2807	Grooved pin (for use with standard handle 187-625)
111-699	- - -	Replaced by 277-364
112-319	0-2431	O-Ring, fluoroelastomer, solvent resistant (optional)
118-948	6-2683	Backup Split Ring, Teflon
15C-780	- - -	Handle, dump valve, 1-5/8" diameter (optional)
15C-972	19-3252	Grooved Pin, long (use with drian valve handle 15C-780)
15E-022	58-2317	Seat, carbide
168-110	0-1104	O-Ring, viton (standard)
187-615	- - -	Replaced by 15E-022
187-625	- - -	Handle, dump valve, standard 1-1/8" diameter
224-807	- - -	Base, dump valve
277-364	20-2865	Gasket, seat (contains (1) each loose-fit & force-fit styles)
Inlet Filters, Suction Hoses/Tubes, Drain Hoses, and Components
For Lo-Boy models:
104-938	0-1847	O-Ring, suction tube (standard)
111-602	- - -	Clip, drain hose
111-612	- - -	Adapter, drain tube, 9/16"-18 thread
114-048	- - -	O-Ring, suction tube, solvent resistant (optional)
187-624	- - -	Suction Tube & Hose Assembly, 3/4" UNF thread
187-627	- - -	Inlet Tube (between suction hose assy & intake valve housing)
187-652	- - -	Drain Hose Assembly
235-004	14-1964	Inlet Filter, 3/4" UNF(f), 12 mesh, nylon cap, single screen
For Hi-Boy models:
187-765	- - -	Inlet Strainer
189-928	- - -	Suction Tube
Outlet Filter Assembly, Filter Elements & Components
Complete Assembly
235-677	- - -	Fluid Outlet Filter (short), standard outlet, complete assembly
Components
100-721	12-1482	Plug, 1/4" NPT, socket hex head
104-361	15-432	Teflon O-Ring, fluid outlet filter
162-453	12-219	Nipple, 1/4" NPS x 1/4" NPT
167-052	14-192	Outlet Filter Element, 30 Mesh, short, stainless steel
167-053	14-193	Outlet Filter Element, 60 Mesh, short, stainless steel
167-054	14-194	Outlet Filter Element, 100 Mesh, short, stainless steel
167-055	14-195	Outlet Filter Element, 200 Mesh, short, stainless steel
171-941	23-1563	Spring, compression, stainless steel
188-418	- - -	Filter Bowl, aluminum, short
188-419	- - -	Head, fluid outlet filter, standard outlet
188-420	- - -	Support, fluid outlet filter, polyethylene
Miscellaneous Parts & Accessories
218-359	- - -	Connecting Rod
235-009	47-2370	Pressure Transducer, mechanical
Graco Instruction Manuals
308-190 K	Displacement Pump
308-634 A	450st Airless Paint Sprayer
308-653 D	Upright Cart Kit
Click Pictures to Enlarge = = = = = = = = = = = = = = = =
Before ordering any repair parts or attempting any maintenance, carefully read all instructions and warnings and verify part numbers required as specified in the OEM manuals that came with your particular unit. This reference was generated on 01/02/2022.  Part numbers on this reference were last modified on 09/16/2015. Copyright © 2022 by Bedford Precision Parts LLC

Repair Parts for Graco 450 st 224-998 224998 235-703 235703 235-709 235709 235-708 235708 218-197 218197Repair Parts for Graco 450 st 105-444 105444 224-966 224966 105-445 105445 105-522 105522 108-526 108526Repair Parts for Graco 450 st 111-603 111603 176-751 176751 176-758 176758 176-759 176759 176-760 176760Repair Parts for Graco 450 st 176-817 176817 176-818 176818 180-656 180656 186-652 186652 187-614 187614Repair Parts for Graco 450 st 193-047 193047 235-014 235014 239-914 239914 111-600 111600 111-699 111699Repair Parts for Graco 450 st 112-319 112319 118-948 118948 15C-780 15C780 15C-972 15C972 15E-022 15E022Repair Parts for Graco 450 st 168-110 168110 187-615 187615 187-625 187625 224-807 224807 277-364 277364Repair Parts for Graco 450 st 104-938 104938 111-602 111602 111-612 111612 114-048 114048 187-624 187624Repair Parts for Graco 450 st 187-627 187627 187-652 187652 235-004 235004 187-765 187765 189-928 189928Repair Parts for Graco 450 st 235-677 235677 100-721 100721 104-361 104361 162-453 162453 167-052 167052Repair Parts for Graco 450 st 167-053 167053 167-054 167054 167-055 167055 171-941 171941 188-418 188418Repair Parts for Graco 450 st 188-419 188419 188-420 188420 218-359 218359 235-009 235009 308-190 308190Repair Parts for Graco 450 st K 308-634 308634 A 308-653 308653 D