Replacement Part List

RYOBI 25cc STRING TRIMMERS – ITEM NUMBERS RY251PH, RY252CS and RY253SS
5
1 660344001 Screw w/Washer (M5 x 20 mm, T20 Torx Pan Hd.) ...........6
2 940627041 Logo Label (Front) .............................................................1
3 940654088 Combustion Warning Label ...............................................1
4 310304006 Front Housing Assembly (Inc. Key Nos. 2-3).....................1
5 660353001 Clutch Shoulder Bolt (M6 x 22.5 mm, Hex Hd.) ................2
6 690696001 Curved Washer ..................................................................2
7 307091001 Clutch Assembly................................................................1
8 690695001 Washer (ID6 x OD15 x 1.2t) ...............................................2
9 690689001 Flywheel Nut ......................................................................1
10 307156001 Flywheel .............................................................................1
11 630002032 ** Muffler Gasket ...................................................................1
12 300748043 Muffler Assembly (Inc. Key Nos. 13-14) ............................1
13 638268001 Screen ...............................................................................1
14 660870001 Screw (6-20 x 1/4 in., T20 Torx Pan Hd. S.T.) .................... 3
15 638027002 Heat Shield ........................................................................1
16 660347001 Screw (M5 x 50 mm, T25 Torx Pan Hd.) ............................ 2
17 307192001 Crankcase Assembly .........................................................1
18 308004003 Starter Cup ........................................................................1
19 900709007 ** Gasket ...............................................................................1
20 290143002 Lead Wire (Red) .................................................................1
21 660968004 Screw w/Washer (M4 x 22 mm, T20 Torx Pan Hd. S.T.) .... 2
22 290143001 Lead Wire (Black) ...............................................................1
23 291337001 Coil Boot Assembly ...........................................................1
24 690969001 Washer (ID4.2 x OD10 x 1t) ...............................................2
25 590462001 Spacer (Phenolic) ..............................................................2
26 660342001 Screw (M5 x 22 mm, Soc. Hd.)..........................................2
27 870174002 * Spark Plug (Torch L7RTC) .................................................1
28 642368001 Cylinder .............................................................................1
29 307157002 Rear Housing and Starter Assembly
(Inc. Key Nos. 31-32) .........................................................1
30 660563002 Screw (M4 x 18 mm, T20 Torx Pan Hd. S.T.) .....................3
31 941788001 Primer Bulb Location Label ...............................................1
32 940627042 Logo Label (Rear) ..............................................................1
33 660970002 Shoulder Screw (M4 x 14 mm, T25 Torx Truss Hd. S.T.) ...3
34 903279002 ** Insulator Gasket ................................................................1
35 528275001 Heat Dam Insulator ............................................................1
36 T662210002 Screw (M5 x 30 mm, T25 Torx Pan Hd. S.T.) .....................2
37 903034001 ** Gasket ...............................................................................1
38 307160009 Carburetor Assembly (Inc. Key No. 39) .............................1
39 563841003 Carburetor O-Ring .............................................................1
40 307191001 Airbox Base Assembly (Inc. Key Nos. 41-45) ....................1
41 591442001 Choke Lever ......................................................................1
42 678515015 Compression Limiters........................................................2
43 591440001 Air Box Base ......................................................................1
44 590946001 Choke Plate .......................................................................1
45 660345001 Screw (M4 x 12 mm, T20 Torx Pan Hd. S.T.) .....................1
46 660454015 Screw (M5 x 44 mm, T20 Torx Pan Hd.) ............................ 2
47 560873001 Air Filter .............................................................................1
48 940647111 Choke Position Label ........................................................1
49 308649003 Airbox Cover (Inc. Key Nos. 48 & 50) ................................1
50 940686168 Starting Instructions Label ................................................1
51 205043001 Fuel Tank and Cap Assembly
(Inc. Key Nos. 52-54) .........................................................1
52 310976001 Fuel Filter ...........................................................................1
53 307159004 Fuel Cap Assembly............................................................1
54 940864004 Fuel Mixture Label .............................................................1
Not Shown:
000998930 Spark Arrestor Kit (Inc. Key Nos. 13-14)
120900222 High Altitude Kit (Not Included)
KEY PART
NO. NUMBER DESCRIPTION QTY
KEY PART
NO. NUMBER DESCRIPTION QTY
PARTS LIST (FIGURE B)
* Standard Hardware Item – May Be Purchased Locally
** Non-Reuseable Parts = Keys 11, 19, 34 and 37