TRACTOR - MODEL NO. GT54LS (96043017900), PROD. NO. 960 43 01-79
ENGINE
Engine Power Rating Information
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive En-
gineers) code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and
corrected in accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horsepower values
are derived at 3600 RPM. Actual gross engine power will be lower and is affected by, among other things, ambient operat-
ing conditions and engine-to-engine variability. Given both the wide array of products on which engines are placed and
the variety of environmental issues applicable to operating the equipment, the gas engine will not develop the rated gross
power when used in a given piece of power equipment (actual "on-site" or net power). This difference is due to a variety
of factors including, but not limited to, accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.),
application limitations, ambient operating conditions (temperature, humidity, altitude), and engine-to-engine variability.
Due to manufacturing and capacity limitations, Briggs & Stratton may substitute an engine of higher rated power for this
Series engine.
KEY
PART
NO.
NO.
DESCRIPTION
1
– – – – – – Engine B&S Model No. 44R877-0008-G1 (586005401)
(Order parts from engine manufacturer.)
2
532 44 59-62 Muffler
9
584 90 80-01 Keeper Asm. Belt Engine
11
532 17 93-35 Clutch Electric
12
532 19 43-43 Pulley Engine
15
532 43 80-82 Tank Fuel 4R
18
532 43 92-08 Cap Asm
20
586 21 96-01 Control Throttle
21
532 41 63-58 Screw #10 x 0.750 BOS Thread
28
532 40 11-35 Fuel Line
29
532 13 71-80 Spark Arrester Kit
37
532 12 34-87 Clamp Hose
41
532 12 61-97 Washer 1-1/2 OD x 15/32 ID x .250
42
810 04 07-00 Washer Lock 7/16
45
873 51 04-00 Nut Keps Hex 1/4-20 unc
62
532 43 40-17 Shield Heat Muffler
69
532 16 53-91 Gasket
70
581 88 11-01 Tube Exhaust LH
71
581 88 10-01 Tube Exhaust RH
79
532 18 39-06 Screw Socket HD 5/16-18 x 1
81
532 14 84-56 Tube Drain Oil Easy
82
532 42 82-87 Valve Oil Drain
84
817 06 06-20 Screw 3/8-16 x 1-1/4
85
532 17 99-53 Bolt 7/16-20 x 3.75 Gr. 5
87
532 17 18-77 Bolt 5/16-18 unc x 3/4 w/Sems
90
817 00 06-16 Screw 3/8-16 x 1
91
532 18 74-95 Bushing
116
539 13 26-24 Knob Soft Touch
117
532 42 08-28 Valve Fuel Reserve
NOTE: All component dimensions given in U.S. inches
1 inch = 25.4 mm
For engine service and replacement parts, call the toll free
number for your engine manufacturer listed below:
Briggs & Stratton
11
1-800-233-3723