
2598288
2598314
2670216
3-323
Engine Tools
Pistons, Rings and Connecting Rods
Piston Ring Expanders
Model: Cat
®
Engines
Warranty: Six Months
• Usedtoeasilyandsafelyremoveandinstallpistonrings
• Whenremovingorinstallingpistonringswithoutsuitabletool,ringsapttobe
brokenoroverstressedsotheynolongertcylinderwallproperly
Engine Bore Expander
114.3 mm (4.50 in) 5F-9059
120.7 mm (4.75 in) 7S-9470
130.2 mm (5.13 in)
1
4C-3601
137.2 mm (5.40 in) 7M-3978
139.7 mm (5.50 in) 149-7179
146.1 mm (5.75 in) 7B-7974
158.8 mm (6.25 in) 5H-9621
170 mm (6.69 in) 271-0498
175 mm (6.89 in) 271-0504
280 mm (11.02 in) 271-0505
300 mm (11.81 in) 4C-8995
1
AlsoavailableinEngineBore:133.4mm(5.25in)
Piston Ring Compressors
Model: Cat
®
Engines
Warranty: Six Months
• Simple,butpractical,one-piecepistonringcompressorssavetimeandprevent
damage to rings when installing pistons in older engines
• Taper on inside is ground to a smooth surface so rings slide through easily
• 2B-8184and6H-4140Compressorsnolongeravailablebutmaybefabricatedby
requesting drawings for FT1400 and FT1401 Compressors
• Scissors-type piston ring compressors used on more current Cat
®
engines;
mucheasierandfastertouse;ringbreakageandinjurytongerspractically
eliminated
Engine Bore Compressor
146.10 mm (5.75 in) 2B-8184 {1} or FT1400
158.80 mm (6.25 in) 6H-4140 {1} or FT1401
{1} Discontinued
Engine Bore Compresser
108 mm (4.25 in) 1U-6684
Scissors Type Ring Compressor
Engine Bore Compressor
Scissors Type Ring Compressor
105 mm (4.13 in) 187-1462
114.30 mm (4.50 in) 5P-3524
120.70 mm (4.75 in) 5P-3525
125 mm (4.92 in) 161-4163
130.10 mm (5.12 in) 161-4164
137.20 mm (5.40 in) 5P-3526
139.70 mm (5.50 in) 149-7180
145 mm (5.71 in) 200-3914
(Continued)