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KEY PART
NO. NO. DESCRIPTION
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 1-800-233-3723
Kohler Co. 1-800-544-2444
Tecumseh Products 1-800-558-5402
Honda Engines 1-800-426-7701
Kawasaki 1-949-460-5688
1 - - - - - - Engine Briggs Model No. 31E677
2 532 13 73-52 Muffler
9 532 19 43-19 Keeper Belt Engine
12 532 40 19-85 Pulley Engine
15 532 40 75-45 Tank Fuel
18 532 19 77-25 Cap Asm
20 532 40 15-08 Control Throttle
21 532 19 16-11 Screw 10 x 3/4 Single Lead-Hex
28 532 40 11-37 Fuel Line
29 532 13 71-80 Spark Arrester Kit
37 532 12 34-87 Clamp Hose
42 810 04 07-00 Washer Lock 7/16
43 532 17 39-37 Bolt Hex 7/16-20 x 4 Gr. 5
69 532 16 52-91 Gasket
79 532 19 23-34 Screw 5/16-18 x 3/4
81 532 14 84-56 Tube Drain Oil Easy
82 532 18 16-54 Plug Drain Oil
84 817 06 06-20 Screw 3/8-16 x 1/4
85 873 51 04-00 Nut Keps Hex 1/4-20 unc
90 817 00 06-16 Screw 3/8-16 x 1
TRACTOR - - MODEL NUMBER LTH1538 (96043003800), PRODUCT NO. 960 43 00-38
ENGINE
Engine Power Rating Information
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engi-
neers) code J11940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and
corrected in accordance with SAE J1995 (Revision 2002-5). Actual gross engine power will be lower and is affected by,
among other things, ambient operating conditions and engine-to-engine variability. Given both the wide array of prod-
ucts 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 horsepower). This difference is due to a variety of factors including, but not limited to, accessories (air cleaner, ex-
haust, 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.