1/4-20 (C)
 1/4-28 (F)
5/16-18 (C)
5/16-24 (F)
 3/8-16 (C)
 3/8-24 (F)
7/16-14 (C)
7/16-20 (F)
 1/2-13 (C)
 1/2-20 (F)
9/16-12 (C)
9/16-18 (F)
 5/8-11 (C)
 5/8-18 (F)
 3/4-10 (C)
 3/4-16 (F)

 70 in. lb. /  6 ft. lb.
 85 in. lb. /  7 ft. lb.
150 in. lb. / 13 ft. lb.
165 in. lb. / 14 ft. lb.
260 in. lb. / 22 ft. lb.
300 in. lb. / 25 ft. lb.
------------- 35 ft. lb.
------------- 45 ft. lb.
------------- 50 ft. lb.
------------- 70 ft. lb.
------------- 75 ft. lb.
------------ 100 ft. lb.
------------ 110 ft. lb.
------------ 140 ft. lb.
------------ 150 ft. lb.
------------ 200 ft. lb.

115 in. lb. / 10 ft. lb.
140 in. lb. / 12 ft. lb.
250 in. lb. / 21 ft. lb.
270 in. lb. / 23 ft. lb.
------------- 35 ft. lb.
------------- 40 ft. lb.
------------- 55 ft. lb.
------------- 75 ft. lb.
------------- 80 ft. lb.
------------ 105 ft. lb.
------------ 125 ft. lb.
------------ 165 ft. lb.
------------ 180 ft. lb.
------------ 230 ft. lb.
------------ 245 ft. lb.
------------ 325 ft. lb.

165 in. lb. / 14 ft. lb.
200 in. lb. / 17 ft. lb.
350 in. lb. / 29 ft. lb.
------------  30 ft. lb.
------------  50 ft. lb.
------------  60 ft. lb.
------------  80 ft. lb.
------------ 105 ft. lb.
------------ 115 ft. lb.
------------ 165 ft. lb.
------------ 175 ft. lb.
------------ 230 ft. lb.
------------ 260 ft. lb.
------------ 330 ft. lb.
------------ 350 ft. lb.
------------ 470 ft. lb.

165 in. lb. / 14 ft. lb.
200 in. lb. / 17 ft. lb.
350 in. lb. / 29 ft. lb.
------------  35 ft. lb.
------------  58 ft. lb.
------------  69 ft. lb.
------------  98 ft. lb.
------------ 110 ft. lb.
------------ 145 ft. lb.
------------ 160 ft. lb.
------------ 200 ft. lb.
------------ 220 ft. lb.
------------ 280 ft. lb.
------------ 310 ft. lb.
------------ 490 ft. lb.
------------ 530 ft. lb.

Kohler K-Series and Magnum Single Cylinder Torque Values and Sequences for Fasteners | Top of page

Model (Horsepower)		K90/91 (4hp)	K141 (6¼hp), K161 (7hp)	K181/M8 (8hp)	K241/M10 (10hp), K301/M12 (12hp), K321/M14 (14hp), K341/M16 (16hp) and K361 (18hp OHV)
Connecting Rods (See notes 1, 2, 3 & 4)	Posi-Lock (Flange Nut/Stud)	-	-	New 140 in. lb./12 ft. lb. Used 100 in. lb./9 ft. lb.	New 260 in. lb./22 ft. lb. Used 200 in. lb./17 ft. lb.
	Capscrew (Bolt)	140 in. lb./12 ft. lb.	200 in. lb./17 ft. lb.		285 in. lb./24 ft. lb.
Spark Plugs		234 in. lb./18-22 ft. lb.	234 in. lb./20 ft. lb.		234 in. lb./20 ft. lb
Cylinder Head Torque Sequences and Torque Values (See note 1)		K90/K91 (4hp)	K141 (6¼hp), K160/K161 (6.6hp), K181/M8 (8hp)		K241/M10 (10hp), K301/M12 (12hp), K321/M14 (14hp)	K341/M16 (16hp)	K361 (18hp OHV)
Flywheel Retaining (See note 6)	Nut (See note 1, 6)	45 ft. lb.	80 ft. lb. (See note 4)		65 ft. lb. (5/8" or 3/4" stud)
	3/8" Bolt (See note 1, 6)	250 in. lb.	-		24-35 ft. lb.
Governor Bushing		80 in. lb.	140 in. lb.		110 in. lb.
Grass Screen	Metal	-	70 - 140 in. lb.		70 - 140 in. lb.
	Plastic	-	-		20-30 in. lb.
Oil Pan	Cast Iron or Aluminum (See note 1)	250 in. lb.	Grade 5 - 250 in. lb. Grade 8 - 350 in. lb.		35 ft. lb.
	Sheet Metal (See note 1)	-	-		200 in. lb.
Plastic Fuel Pump Mounting Screws		-	40 in. lb.		40 in. lb.

Note 1 - Lubricate fastener threads with engine oil.
Note 2 - DO NOT overtorque - DO NOT loosen and retorque the hex nuts on Posi-Lock connecting rods.
Note 3 - Overtorque 20%, loosen below torque value and retorque to final torque value. NOTE: Overtorquing rod bolts 20% places stress on the threads in a NEW aluminum rod. This allows for proper tightness so bolts won't loosen later. Used rods: Torque to 285 in. lbs. one time only. NEW - Component directly from stock. USED - Component that was in a running engine.
Note 4 - To prevent rod bolts from loosening, install a split lock washer on each bolt and then torque them to specs. Posi-Lock (flange) nuts don't require a lock washer.
Note 5 - Prior to Serial No. 23209832 - 45-55 ft. lb.
Note 6 - Flywheel and crankshaft tapers must be clean and dry.

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