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Specifications

Basic Engine Values
Make	NISSAN	Engine Cylinders	4
Engine Model	K21	Engine Displacement CID	126
Litre	2.1L	Firing Order	1-3-4-2
Engine Displacement CC	2065	Stroke	3.27
Bore	3.5	Spark Plug Type	NI22401-FU412
Ignition Timing Idle Speed	0	Oil Pressure	0
Oil Capacity w/Filter	4.0L	Engine Compression	178 psi
Compression Ratio	8.7:1 (Gas) 9.3:1 (LPG)	Distributor Gap	0
Spark Plug Gap	.035	Idle RPM	700
Point Gap	0
Torque Values
Location	Ft Lbs.	Location	Ft Lbs.
Main Bearing Caps	61.5-68.7	Oil Pan Drain Plug	21.7
Rod Bearing Caps	23.16	Oil Pump Bolt	0
Cylinder Head Bolts	50.6 then 67.86	Rocker Arm Nut	0
Cam Sprocket Bolt	28.91	Rocker Shaft Bracket Bolt	0
Crank Pulley Bolt	162.6	Timing Cover	0
Flywheel Bolt	97.35	Spark Plug	14.45
Flywheel Housing	0	Water Outlet Bolt	0
Mainfold Bolt & Nut	0	Water Pump Bolt	0
Oil Pan Bolt	0	Water Pump Pulley Bolt	0
Piston
Piston Diameter	3.502-3.504	Cylinder Bore Clearance	0.00098-0.0017
Piston Pin Diameter	0.7871-0.7877	Piston Sleeve Clearance	0
Piston Pin Hole Bore	0
Rings
Ring Gap-Top	0.011-0.017	Side Clearance Top	0.0017-0.0031
Ring Gap-2nd	0.0177-0.0236	Side Clearance 2nd	0.0012-0.0027
Ring Gap-3rd	0	Side Clearance 3rd	0
Ring Gap-4th	0	Side Clearance 4th	0
Ring Gap-5th	0	Side Clearance 5th	0
Ring Gap-Oil	0.0078-0.0236	Side Clearance Oil	0.0026-0.0053
Crankshaft
Main Journal Diameter	2.478	Rod Journal Diameter	0
Main Run Clearance	0.0008-0.0029	Rod Run Clearance	0
Front Main Journal Diameter	0	Thrust Washer Thickness	0
Front Interior Diameter	0	Thrust Bearing Thickness	0
Center Diameter	0	End Play	0.0002
Rear Interior Diameter	0	Rear Main Journal Diameter	0
Cam Shaft
1st Journal Diameter	1.789	Cam Front Bushing ID	0
2nd Journal Diameter	1.728	Cam Center Bushing ID	0
3rd Journal Diameter	1.624	Cam Rear Bushing ID	0
4th Journal Diameter	0	Cam Lift Intake	0
5th Journal Diameter	0	Cam Lift Exhaust	0
Journal End Play	0	Cam End Play	0.00098-0.01004
Valves
Intake Length	3.9	Exhaust Length	3.9
Intake Stem Diameter	0.275	Exhaust Stem Diameter	0.274
Intake Head Diameter	1.50	Exhaust Head Diameter	1.26
Intake Face Angle	45 Degrees	Exhaust Face Angle	45 Degrees
Intake Clearance	0.015 HOT	Exhaust Clearance	0.015 HOT

Model	Engine	Required	Notes
KOMATSU FG15H-17	K21	1
KOMATSU FG15HC-17	K21	1
KOMATSU FG15HT-17	K21	1
KOMATSU FG15HT-20	K21	1
KOMATSU FG15S-17	K21	1
KOMATSU FG15SHT-20	K21	1
KOMATSU FG15ST-17	K21	1
KOMATSU FG18HT-17	K21	1
KOMATSU FG18HT-20	K21	1
KOMATSU FG18S-17	K21	1
KOMATSU FG18SHT-20	K21	1
KOMATSU FG18ST-17	K21	1
KOMATSU FG20AHT-20	K21	1
KOMATSU FG20ASHT-20	K21	1
KOMATSU FG20C-14	K21	1
KOMATSU FG20ST-14	K21	1
KOMATSU FG20ST-16	K21	1
KOMATSU FG20T-14	K21	1
KOMATSU FG20T-16	K21	1
KOMATSU FG25C-14	K21	1
KOMATSU FG25ST-14	K21	1
KOMATSU FG25ST-16	K21	1
KOMATSU FG25T-14	K21	1
KOMATSU FG25T-16	K21	1
KOMATSU FG30C-14	K21	1
NISSAN MAP1F1A15DV	K21	1
NISSAN MAP1F1A15LV	K21	1
NISSAN MAP1F1A18DV	K21	1
NISSAN MAP1F1A18LV	K21	1
NISSAN MAP1F2A25DV	K21	1
NISSAN MAP1F2A25LV	K21	1
NISSAN MAPL01A15DV	K21	1
NISSAN MAPL01A15JV	K21	1
NISSAN MAPL01A15LV	K21	1
NISSAN MAPL01A18DV	K21	1
NISSAN MAPL01A18JV	K21	1
NISSAN MAPL01A18LV	K21	1
NISSAN MAPL02A25DV	K21	1
NISSAN MAPL02A25JV	K21	1
NISSAN MAPL02A25LV	K21	1
NISSAN MCP1F1A15DU	K21	1
NISSAN MCP1F1A15DV	K21	1
NISSAN MCP1F1A15LU	K21	1
NISSAN MCP1F1A15LV	K21	1
NISSAN MCP1F1A18DU	K21	1
NISSAN MCP1F1A18DV	K21	1
NISSAN MCP1F1A18LU	K21	1
NISSAN MCP1F1A18LV	K21	1
NISSAN MCP1F1A20DU	K21	1
NISSAN MCP1F1A20DV	K21	1
NISSAN MCP1F1A20LU	K21	1
NISSAN MCP1F1A20LV	K21	1
NISSAN MCP1F2A20DU	K21	1
NISSAN MCP1F2A20DV	K21	1
NISSAN MCP1F2A20JV	K21	1
NISSAN MCP1F2A20LU	K21	1
NISSAN MCP1F2A20LV	K21	1
NISSAN MCP1F2A25DU	K21	1
NISSAN MCP1F2A25DV	K21	1
NISSAN MCP1F2A25JV	K21	1
NISSAN MCP1F2A25LU	K21	1
NISSAN MCP1F2A25LV	K21	1
NISSAN MCP1F2A28DU	K21	1
NISSAN MCP1F2A28DV	K21	1
NISSAN MCP1F2A28JV	K21	1
NISSAN MCP1F2A28LU	K21	1
NISSAN MCP1F2A28LV	K21	1
NISSAN MCPL01A15DV	K21	1
NISSAN MCPL01A15JV	K21	1
NISSAN MCPL01A15LV	K21	1
NISSAN MCPL01A18DV	K21	1
NISSAN MCPL01A18JV	K21	1
NISSAN MCPL01A18LV	K21	1

ENGINE (BRAND NEW NISSAN K21) for NISSAN for KOMATSU for TCM

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