
2591173
3-126
Engine Tools
Cylinder Head, Valves and Cam Followers
166-7441 Valve Seat Extractor Tool Group
Model: All Cat
®
Engines except 3600
Warranty: Six Months
• Replacesdiscontinued6V-4805ValveSeatExtractorTool
Groupanddiscontinued9S-3080ValveSeatInsertPuller
Group
• UsedtoremovevalveseatinsertsonallCat
®
engines
• Uses only 4 extractors and employs different method of in-
sertremoval,whichcauseslessdamagetotheextractors
• Providesgrindertogrooveinsideofinserttomakeinsert
removaleasierwithextractor
• 165-5647 has notched 47.63 mm (1.875 in) diameter for
easyremovalofG3500swirl-typeinserts
Reference
SMHS7935, Special Instruction
Item Description
10 Plate Assembly
Item Part Number Description Size
1 6V-4801 Stone --
-- 166-7741 ValveSeat
Extractor Tool
Group
--
2 6V-4802 Wheel --
3 165-5647 Extractor 22.23 mm (0.875 in),
34.93 mm (1.375 in),
47.63 mm (1.875 in)
plus swirl inserts
4 6V-4194 Extractor 25.4 mm (1.0 in), 38.1
mm (1.5 in), 50.8 mm
(2.0 in)
5 6V-4195 Extractor 28.58 mm (1.125 in),
41.28 mm (1.625 in)
53.98 mm (2.125 in)
Item Part Number Description Size
6 6V-4196 Extractor 31.75 mm (1.25 in),
44.45 mm (1.75 in)
57.15 mm (2.25 in)
7 222-3074 Medium Mini
Die Grinder,
requires 4C-
3689 Collar
--
8 6V-4199 Lifting Bracket --
9 6V-4197 Base Group --
11 6V-4803 Thrust Bear-
ing (Part of
6V-4804)
--
12 6V-4804 Handle As-
sembly
--
13 6V-4192 Shaft Assem-
bly
--