TRACTOR - - MODEL NUMBER 917.273521
BRIGGS & STRATTON ENGINE-MODEL NUMBER 407577, TYPE NUMBER 0283-E1
KEY PART KEY PART
NO. NO, DESCRIPTION NO, NO, DESCRIPTION
I
2
3
4
5
5A
7
8
9
I0
II
I2
I3
I5
I8
20
22
23
24
25
25
28
28
27
28
29
32
33
34
35
38
40
42
45
48
48
50
5I
5IA
5IB
53
54
73
74
75
89
98
104
105
108
II7
II8
I21
I22
I25
I27
699751 Cylinder Assembly 130 699809
499585 Kit-Bushing/Seal (Magneto Side) 13I 699812
391086 ,Seal-Oil (Magneto Side) 133 694914
699747 Sump-Engine 137 698781
693998 Head-Cylinder (Cylioder 1) 14I 699811
693999 Head-Cylinder (Cylioder 2) 148 690979
690962 -+Gasket-Cylinder Head 185 693148
499601 Breather Assembly 187 699799
690937 ,Gasket-Breather 187A 691049
690980 Screw (Breather Assembly) 188 690960
690942 Tube-Breather 192 690083
697227 ,Gasket-Crankcase 209 692909
690380 Screw (Cylinder Head) 2I I 691019
690948 Plug-Oil Drain 212 699805
691048 Crankshaft 218 691021
690947 ,Seal-Oil (PTO Side) 2I 8 691022
694988 Screw (Engine Sump) 219 698231
691054 Flywheel 220 690412
222698 Key- Flywheel 222 698761
499588 Piston Assembly (Standard) 227 69I 048
499590 Piston Assembly (.020" Over- 23I 690718
size) 240 69I 035
499604 Ring Set-Piston (Standard) 250 690957
499608 Ring Set-Piston (.020 Oversize) 252 690958
690975 Lock-Piston Pin 285 691024
690229 Pin-Piston 287 695134
499583 Rod-Connecting 278 695410
690978 Screw (Connecting Rod) 287 690960
499598 Valve- E×haast 304 695277
499597 Valve-Intake 305 691005
690983 Spring-Valve (Intake) 309 497595
690963 Spring-Valve (Exhaust) 3I O 690323
690964 Retainer-Valve 3I I 497608
499586 Keeper-Valve 332 69I 059
690977 Tappet-Valve 333 691060
699748 Camshaft 334 69I 06I
692714 Short Block 337 691043
699801 Manifold-Intake 358 699823
690949 +, OSGasket-lntake 388 691062
699803 +, OSGasket-lntake 383 690968
699800 +, OSGasket-lntake 385 690960
690951 Stud (Carburetor) 387 808656
699818 Screw (Intake Manifold) 404 690442
691055 Screen-Rotating 405 697820
691057 Screw (Rotating Screen) 43I 699806
691056 Washer (Flywheel) 445 499488
690283 Plug-Oil 447 691003
699721 Kit-Idle Speed 447A 690960
694918 OPin-Float Hinge
698537 OValve- Float Needle
699808 Valve-Choke O
698784 Jet-Main (Standard)
699820 Jet-Main (High Altitude)
699814 Kit-Carburetor Overhaul
699802 Spacer-Carburetor +
699807 Carburetor
69981 O Plug-Welch
Valve-Throttle
Kit-Throttle Shaft
Float-Carburetor
OGasket-FIoat Bowl
Kit-Choke Shaft
Key-Timing
Nut (Ring Gear)
Line-Fuel
Line-Fuel (Molded)
Screw (Control Bracket)
Adjuster-Rocker Arm
Spring-Governor
Spring-Governed Idle
Link-Throttle
Bracket-Choke Control
Link-Choke
Gear-Governor
Washer (Governor Lever)
Bracket-C_ntrol
Lever-Governor Control
Screw (Choke Valve)
Filter-Fuel
Retainer-Breather
Collector-Oil
Clamp-Casing
Screw (Casing Clamp)
+Washer-Sealing
Screw (Dipstick Tube)
Housing-Blower
Screw (Blower Housing)
Motor-Starter
Bolt (Starter Motor)
Brush Set
Nut (Flywheel)
Armature-Magneto
Screw (Magneto Armature)
Spark Plug
Set-Engine Gasket
Flywheel Puller
Wrench-Spark Plug
Screw (Fuel Pump)
Pump-Fuel
Washer (Governor Crank)
Screw (Back Plate)
Elbow-Intake
Filter-Air Cleaner Cartridge
Screw (Air Guide C_ver)
Screw (Air Guide C_ver)
Included in Engine Gasket Set, Key. No. 358
Included in Carburetor Overhaul K_t, Key. No.
12I
Included in Carburetor Gasket Set, Key No
977
Included in Valve Gasket Set, Key. No. I095
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
53
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