CAT LeMaster Radiator Core


Models that Meet Any Operator Requirement


The Superior LeMaster core and adaptor assembly replaces Caterpillar® multi-section folded and modular cores with a one-piece conventional radiator core. Folded cores can be replaced with many different tube configurations, including in-line, canted and staggered.

All feature flat or dimpled fins that provide self-cleaning characteristics in harsh environments to minimize plugging. The full frontal area generates significant gains in radiator cooling capability. Replacement cores are available in steel, brass or heavy copper construction. Many Cat® replacement core features are also available, including face dipping, tube guards (armor shields), heavy headers, fully reinforced headers and solder-coated fins.
Caterpillar LeMaster Radiator
CATERPILLAR® (LeMASTER RADIATOR Core ASSEMBLY)
Call to Confirm Correct Part with the Bottom Tank Number
 

Application

Description
 
Height

Width

Depth

Rows

FPI
Fin
Mtrl
BH/TH Width BH/TH Length BH/TH Bolts
Part #
                         
CAT-LeMASTER 508 SKIDDER 4W8922 GROUP REPL 6 CORES BRASS FINS   24 11/16 26 1/4 4  7/16 6 7 B 6 1/2
6 1/2
25 1/2
25 1/2
32
32
284240
CAT-LeMASTER D-4 REPL 4 CORES BRASS FINS   29 1/8 24 3/4 4 1/2 6 7 B 6 1/2
6 1/2
25
25
32
32
274170
CAT-LeMASTER D-4H (IMRM) 2W6509, 8N7031 GROUPS REPL 5 CORES BRASS FINS   29 1/8 24 3/4 4 1/2 6 7 B 6 1/2
6 1/2
25
25
32
32
274222
CAT-LeMASTER D-4 REPL 4 CORES BRASS FINS   29 1/8 25 4  7/16 6 7 B 6 1/2
6 1/2
25
25
32
32
284170
CAT-LeMASTER D-4H (IMRM) 2W6509, 8N7031 GROUP REPL 5 CORES BRASS FINS   29 1/8 25 4  7/16 6 7 B 6 1/2
6 1/2
25
25
32
32
284222
CAT-LeMASTER 916, 928, IT28 1W9441 GROUP REPL 4 CORES BRASS FINS   29 1/8 28 3/4 4  7/16 6 7 B 6 1/2
6 1/2
29
29
34
34
284172
CAT-LeMASTER 916, 928, IT28 1W9441 GROUP REPL 4 CORES BRASS FINS   29 1/8 29 1/4 4 1/2 6 7 B 6 1/2
6 1/2
29
29
34
34
274172
CAT-LeMASTER 936E WO/AC 1W4553 GROUP REPL 5 CORES BRASS FINS   29 1/8 31 7/8 5  3/16 7 7 B 7
7
32
32
38
38
284148
CAT-LeMASTER 936E W/AC 1W4555 GROUP REPL 8 CORES BRASS FINS   29 1/8 31 7/8 5  3/16 7 7 B 7
7
32
32
38
38
284182
CAT-LeMASTER 936 WO/AC 1W4553 GROUP REPL 5 CORES BRASS FINS   29 1/8 32  1/16 5 1/4 7 7 B 7
7
32
32
38
38
274148
CAT-LeMASTER D-5H 9Y8531, 8N9536 GROUPS REPL 6 CORES BRASS FINS   30 7/8 26 7/8 4  7/16 6 7 B 6 1/2
6 1/2
27
27
34
34
284210
CAT-LeMASTER D-6D 1W9285 GROUP REPL 8 CORES BRASS FINS   32 3/8 31 1/4 4  7/16 6 7 B 6 1/2
6 1/2
31 1/2
31 1/2
38
38
284140
CAT-LeMASTER 3406 GEN SET REPL 8 CORES BRASS FINS   33 7/8 35 5/8 5  3/16 7 7 B 7
7
36 3/8
36 3/8
42
42
284132
CAT-LeMASTER 3406 GEN SET REPL 8 CORES BRASS FINS   33 7/8 36 5 1/4 7 7 B 7
7
36
36
42
42
274132
CAT-LeMASTER 950E W/OC** 4W1181 GROUP REPL 7 CORES BRASS FINS O/C 441000 AVAIL   36 1/8 32 1/2 5  3/16 7 7 B 7
7
33
33
40
40
284144
CAT-LeMASTER 826G w/IMRM REPL 9 CORES BRASS FINS   39  3/16 44 3/8 5  3/16 7 7 B 7
7
44 1/2
44 1/2
54
54
284200
CAT-LeMASTER 980C w/OC** REPL 15 SECTIONS   40 3/4 34 3/8 5  3/16 7 7 C 7
7
35
35
42
42
284298
CAT-LeMASTER 980C W/OC 1W8649 GROUP REPL 11 CORES BRASS 441003 O/C AVAIL   40 3/4 34 7/8 5 1/4 7 7 B 7
7
34 3/4
34 3/4
40
40
274150
CAT-LeMASTER 980C W/OC 1W8649 GROUP REPL 11 CORES BRASS FINS441003 O/C AVAIL   40 3/4 35 5  3/16 7 7 B 7
7
34 3/4
34 3/4
40
40
284150
CAT-LeMASTER 825, 826C W/OC ** 2W0037 GROUP REPL 13 CORES BRASS FINS441004 O/C AVAIL   40 3/4 38 3/4 5  3/16 7 7 B 7
7
39
39
46
46
284166
CAT-LeMASTER 825, 826C W/OC ** 2W0037 GROUP REPL 13 CORES BRASS 441004 O/C AVAIL   40 3/4 38 13/16 5 1/4 7 7 B 7
7
39
39
46
46
274166
CAT-LeMASTER 980F (IMRM) REPL 9 CORES BRASS FINS   40 3/4 43 1/8 5  3/16 7 9 B 7
7
43 1/2
43 1/2
48
48
284224
CAT-LeMASTER 980F (IMRM) REPL 9 CORES BRASS FINS   40 3/4 43  5/16 5 1/4 7 9 B 7
7
43 1/2
43 1/2
48
48
274224
CAT-LeMASTER D-8L W/AC REPL 14 CORES BRASS FINS   43 3/4 42 1/2 5  3/16 7 7 B 7
7
43
43
50
50
284228
CAT-LeMASTER D-8L WO/AC 4W1796 GROUP REPL 14 CORES BRASS FINS   43 3/4 42 1/2 5  3/16 7 7 B 7
7
43
43
50
50
284174
CAT-LeMASTER D-8L W/AC REPL 14 CORES BRASS FINS   43 3/4 42 3/4 5 1/4 7 7 B 7
7
43
43
50
50
274228
CAT-LeMASTER D-8L WO/AC 4W1796 GROUP REPL 14 CORES BRASS FINS   43 3/4 42 3/4 5 1/4 7 7 B 7
7
43
43
50
50
274174
CAT-LeMASTER 657E SCRAPER REPL 9 CORES   43 3/4 43 1/8 5  3/16 7 7 C 7
7
43 1/2
43 1/2
50
50
284280
CAT-LeMASTER D-9N WO/AC 7W2847 REPL 15 CORES BRASS FINS   43 3/4 43 3/4 5  3/16 7 7 B 7
7
44
44
50
50
284102
CAT-LeMASTER D-8N (IMRM) REPL 9 CORES BRASS FINS   43 3/4 43 3/4 5  3/16 7 9 B 7
7
44
44
50
50
284162
CAT-LeMASTER D-9N W/AC 7W8887 REPL 16 CORES BRASS FINS   43 3/4 43 3/4 5  3/16 7 7 B 7
7
44
44
50
50
284164
CAT-LeMASTER D-9N WO/AC 7W2847 REPL 15 CORES BRASS FINS   43 3/4 43 7/8 5 1/4 7 7 B 7
7
44
44
50
50
274102
CAT-LeMASTER D-8N (IMRM) REPL 9 CORES BRASS FINS   43 3/4 43 7/8 5 1/4 7 9 B 7
7
44
44
50
50
274162
CAT-LeMASTER D-9N W/AC 7W8887 REPL 16 CORES BRASS FINS   43 3/4 43 7/8 5 1/4 7 7 B 7
7
44
44
50
50
274164
CAT-LeMASTER 3408 GEN SET REPL 10 CORES BRASS FINS   43 3/4 45 5/8 5  3/16 7 7 B 7
7
46
46
52
52
284272
CAT-LeMASTER 631E, 637E FRONT 2W0029 REPL 11 CORES BRASS FINS   43 3/4 47 1/4 5 1/4 7 7 B 7
7
47 1/2
47 1/2
54
54
274104
CAT-LeMASTER 769C 35 TON TRUCK 2W1991 GROUP REPL 15 CORES BRASS FINS   43 3/4 47 1/4 5 1/4 7 7 B 7
7
47 5/8
47 5/8
54
54
274238
CAT-LeMASTER 988B REPL 13 CORES BRASS FINS   43 3/4 47 1/4 5 1/4 7 7 B 7
7
47 5/8
47 5/8
54
54
274152
CAT-LeMASTER 631E, 637E FRONT 2W0029 REPL 11 CORES BRASS FINS   43 3/4 47 1/2 5  3/16 7 7 B 7
7
47 1/2
47 1/2
54
54
284104
CAT-LeMASTER 769C 35 TON TRUCK 2W1991 GROUP REPL 15 CORES BRASS FINS   43 3/4 47 1/2 5  3/16 7 7 B 7
7
47 5/8
47 5/8
54
54
284238
CAT-LeMASTER 988B REPL 16 CORES BRASS FINS   43 3/4 47 1/2 5  3/16 7 7 B 7
7
47 1/2
47 1/2
54
54
284232
CAT-LeMASTER 988B REPL 13 CORES BRASS FINS   43 3/4 47 1/2 5  3/16 7 7 B 7
7
47 5/8
47 5/8
54
54
284152
CAT-LeMASTER 3412 GEN SET REPL 11 CORES BRASS FINS   43 3/4 50 5/8 5  3/16 7 7 B 7
7
51
51
54
54
284270
CAT-LeMASTER 3412 GEN SET REPL 11 CORES BRASS FINS   50 3/4 50 5/8 5  3/16 7 8 B 7
7
51
51
60
60
284276
CAT-LeMASTER 651E, 657E FRONT 4W2786 GROUP REPL 16 CORES BRASS FINS   50 3/4 50 5/8 5  3/16 7 7 B 7
7
50 1/2
50 1/2
60
60
284158
CAT-LeMASTER D-10N w/IMRM 4Q5657 GROUP REPL 11 CORES BRASS FINS   50 3/4 51 3/4 5 1/4 7 7 B 7
7
52
52
58
58
274282
CAT-LeMASTER D-10N w/IMRM 4Q5657 GROUP REPL 11 CORES BRASS FINS   50 3/4 51 7/8 5  3/16 7 7 B 7
7
52
52
58
58
284282
CAT-LeMASTER D-10N WO/AC REPL 18 CORES BRASS FINS   50 3/4 52 1/2 5  3/16 7 7 B 7
7
53
53
60
60
284110
CAT-LeMASTER D-10N W/AC REPL 19 CORES BRASS FINS   50 3/4 52 1/2 5  3/16 7 7 B 7
7
52 1/2
52 1/2
60
60
284136
CAT-LeMASTER D-10N W/AC REPL 19 CORES BRASS FINS   50 3/4 52 7/8 5 1/4 7 7 B 7
7
52 1/2
52 1/2
60
60
274136
CAT-LeMASTER 3508, 3512 GEN SET 7W3699 REPL 13 CORES BRASS FINS   57 7/8 60 5  3/16 7 7 B 7
7
60 1/2
60 1/2
68
68
284264
CAT-LeMASTER D-11N 8N8702 GROUP REPL 21 CORES BRASS FINS   57 7/8 60 5  3/16 7 7 B 7
7
60 1/2
60 1/2
68
68
284100
CAT-LeMASTER D-11N w/IMRM 8N8702 GROUP REPL 12 CORES BRASS FINS   57 7/8 60 5  3/16 7 7 B 7
7
60 1/2
60 1/2
68
68
284116
CAT-LeMASTER D-11N 8N8702 GROUP REPL 21 CORES BRASS FINS   57 7/8 60  3/16 5 1/4 7 7 B 7
7
60 1/2
60 1/2
68
68
274100
CAT-LeMASTER 988F LOADER w/IMRM 4P2488 GROUP REPL 12 CORES BRASS FINS   58 55 5/8 5  3/16 7 7 B 7
7
56
56
62
62
284168
CAT-LeMASTER 988F LOADER w/IMRM 4P2488 GROUP REPL 12 CORES BRASS FINS   58 56 1/4 5 1/4 7 7 B 7
7
56
56
62
62
274168
CAT-LeMASTER 777C 85 TON TRUCK REPL 23 CORES BRASS FINS   61 3/4 62 1/2 5  3/16 7 7 B 7
7
63
63
70
70
284186
CAT-LeMASTER 785B 130 TON TRUCK REPL 26 CORES BRASS FINS   69 3/8 72 5 1/4 7 7 B 7
7
72
72
86
86
274178
CAT-LeMASTER 3512, 3516 GEN SET 7W7666 REPL 25 CORES BRASS FINS   69 3/8 78 3/4 5  3/16 7 7 B 7
7
79
79
86
86
284256
CAT-LeMASTER 3512, 3516 GEN SET 7W7666 REPL 25 CORES BRASS FINS   69 3/8 78 3/4 5 1/4 7 7 B 7
7
79
79
86
86
274256


Superior Cooling - LeMaster Radiator Conversion

Installs quickly and easily


Your Superior LeMaster core and adaptor assembly is pre- tested to ensure fast, easy installation. Once the radiator has been removed from the vehicle, the new assembly can be installed in as little as an hour.

Best of all, operators don’t have to replace the entire radiator. The new conventional core is simply adapted to the existing Caterpillar® tank using new Caterpillar® seals.

Each stainless steel nipple on the adapter fits precisely into the existing top and bottom tanks, replacing the individual tank fittings of the original core modules. Because the original Caterpillar® seal concept is used, the replacement assembly remains solidly mounted between rubber and is able to withstand severe road vibration and twisting stress. This provides a marked improvement over the original assembly.
 
 
 


Improve your operational profitability and productivity


Save money by eliminating the need for a complete radiator conversion or replacement. Better heat transfer characteristics also mean less downtime and lower maintenance costs. The Superior LeMaster core and adaptor assembly extends the useful life of Caterpillar® equipment in harsh environments:

• eliminate or reduce plugging
• reduce operational downtime
• decrease equipment repair costs
• eliminate complete radiator replacement
• reduce maintenance time and costs
• enhance equipment life
• improve operational time.

We have a broad range of models for most standard Caterpillar® applications (more than 70), and custom models are available for almost any unique application. Our LeMaster core and adapter assembly is available nationwide.

Installation guidebooks are also available. Call 1-800-578-8416
CAT Radiator Conversion
 
 

End Plugging Problems NOW


So much depends on the cooling system in the industrial equipment you use. But outside factors are constantly working against it. Humidity, trash and debris, airborne chemicals and high ambient temperatures all stress your cooling system. Add the constant vibration, pounding and flexing most industrial equipment endures, along with heat abrasion, and plugging becomes a serious and constant problem no matter how much maintenance you do.

To keep your equipment running, it’s critical that the radiator is engineered to withstand these external forces. The patented LeMaster core and adaptor assembly is the proven solution for folded or modular core plugging, and it virtually eliminates rust contamination.