Replacement Part List

3
RYOBI 40 VOLT CHAIN SAW - MODEL NUMBER RY40503
KEY PART
NO. NUMBER DESCRIPTION QTY
PARTS LIST
The model number will be found on a label attached to the motor housing. Always mention the model number in all correspondence regarding your
CHAIN SAW or when ordering repair parts.
1 678339003 Hex Nut (5/16-18) .........................................................2
2 205119001 Bar Cover (Inc. Key No. 8) ............................................1
3 205118001 Bar Cover Assembly (Inc. Key Nos. 1-2 & 4-8).............1
4 563443001 Rubber Plate .................................................................1
5 205120001 Driving Adjustment Gear Assembly ..............................1
6 658138001 Guide Plate ..................................................................1
7 660922001 Screw (M4 x 12 mm, T20 Torx Pan Hd.) .......................3
8 941851104 Bar Cover Logo Label ...................................................1
9 205115001 Guard Assembly (Inc. Key No. 42) ................................1
10 638988001 Washer ..........................................................................1
11 636159001 E-ring ............................................................................1
12 635367001 Cap Washer ..................................................................1
13 314675001 Bar (14 in.).....................................................................1
14 682006004 Chain (14 in.) .................................................................1
15 612313001 Sprocket .......................................................................1
16 635335001 Guide Bar Plate ............................................................1
17 662083001 Screw (M4 x 12 mm, T20 Torx Pan Hd.) .......................5
18 580491001 Scabbard ......................................................................1
19 662051001 Screw (M5 x 19 mm, T20 Torx Pan Hd.) .....................12
20 537277001 Cover Housing ..............................................................1
21 537485001 Oil Pump Drive ..............................................................1
22 658198001 Washer ..........................................................................1
23 660608001 Screw (M4 x 12 mm, T-20 Torx Pan Hd.) ......................7
24 309516002 Oil Pump .....................................................................1
25 565069001 Oil Output Tube ............................................................1
26 662053001 Screw (M5 x 25, T25 Torx Pan Hd.) ..............................4
27 662052002 Screw (M5 x 8 mm, T25 Torx Pan Hd.) .........................3 ....
28 205116001 Housing Assembly (Inc. Key Nos. 39-40 & 43-46) .......1
29 314746001 Oil Tank Assembly ........................................................1
30 900876003 Terminal Block ..............................................................3
31 314747001 Motor Controller and Battery Connector Assembly .....1
32 205117001 Switch Trigger & Lock Out Button Assembly ...............1
33 742089004 Motor ............................................................................1
34 760579005 Switch ...........................................................................1
35 694143001 Spring ...........................................................................1
36 612330001 Wrench .........................................................................1
37 537276001 Front Handle .................................................................1
38 306888001 Oil Tank Cap Assembly .................................................1
39 941851111 Warning Icon Label (Right) ...........................................1
40 941851110 Warning Icon Label (Left) ..............................................1
41 537280001 Volute Cover .................................................................1
42 941851105 Logo Label ....................................................................1
43 941851106 Data Label ....................................................................1
44 941851102 Motor Side Logo Label .................................................1
45 941851109 Warning Label (English/Spanish, Left) ..........................1
46 941851108 Warning Label (English/French, Right) .........................1
Not Shown:
995000684 Operator’s Manual
12-18-18
(Rev:01)
KEY PART
NO. NUMBER DESCRIPTION QTY