Ranger 4WD L4-153 2.5L SOHC VIN C SFI (2001)
Piston: Specifications
Piston Diameter
Coded Red
3.7780-3.7785 in
Measure on skirt 40 mm (1.57 in) down from face of piston
dome.
Coded Blue
3.7785-3.7790 in
Measure on skirt 40 mm (1.57 in) down from face of piston
dome.
Coded Yellow
3.7790-3.7795 in
Measure on skirt 40 mm (1.57 in) down from face of piston
dome.
Piston-to-Bore Clearance
Select Fit
0.001-0.002 in
Measure on skirt 40 mm (1.57 in) down from face of piston
dome.
Service Piston Selection Bore Size
Service Piston Grade
Required
Use bore measurement perpendicular to crank centerline
Red
3.7795-3.7800 in
Use bore measurement perpendicular to crank centerline
Blue
3.7800-3.7805 in
Use bore measurement perpendicular to crank centerline
Yellow
3.7805-3.7810 in
Use bore measurement perpendicular to crank centerline
Ring Groove Width
Compression (Top)
0.0600-0.0605 in
Use bore measurement perpendicular to crank centerline
Compression (Bottom)
0.0600-0.0605 in
Use bore measurement perpendicular to crank centerline
Oil
0.1193-0.1203 in
Use bore measurement perpendicular to crank centerline
