7X2557 BOLT Caterpillar parts
12M, 12M 2, 12M 3, 12M 3 AWD, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 160M, 160M 2, 160M 3, 160M 3 AWD, 16M, 236D, 242D, 246C, 246D, 2470C, 24H, 24M, 256C, 2570C, 257D, 259D, 262C, 262C2, 262D, 272C, 2...
Rating:
Alternative (cross code) number:
CA7X2557
7X-2557
7X2557
CA7X2557
7X-2557
7X2557
Weight: 0.50 pounds 0 kg.
Information:
COATING/PLATING
Zinc-Dichromate Coating
GRIP LENGTH
96
mm
HEAD HEIGHT
10.32
mm
HEX SIZE
24
mm
LENGTH
140
mm
MATERIAL
Steel - 1040 MPa Min Tensile Strength
THREAD SIZE
M16X2
ARTICULATED TRUCK, WHEELED EXCAVATOR,
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CTP 7X2557 Grade 10.9 Hex Head Zinc Plated Cap Screw, M16 x 2.00 Thread Size, 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
CTP 7X2557 Grade 10.9 Hex Head Zinc Plated Cap Screw, M16 x 2.00 Thread Size, 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
$8.08
29 Jan 2024
Amazon.com
CTP 7X2557 Grade 10.9 Hex Head Zinc Plated Cap Screw, M16 x 2.00 Thread Size, 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
CTP Hex Type of Head || Zinc Plated Finish || M16 x 2.00 Thread Size || 140mm Length
Number on catalog scheme:
12
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Compatible equipment models: 7X2557:
ASPHALT PAVER
AP-1000E
AP-1055E
AP-555E
AP-600D
AP-655D
AP-900B
BG1000E
BG1055E
BG500E
BG600D
BG655D
EXCAVATOR
311D LRR
311F LRR
312C L
312D
312D L
312D2
313D2 LGP
314C
314D LCR
315C
315D L
318C
318D2 L
319C
319D L
320 L
320B
320B FM LL
320B U
320C
320C FM
320C L
320D
320D FM
320D FM RR
320D GC
320D L
320D LN
320D LRR
320D RR
320D2
320D2 GC
320D2 L
320E
320E L
320E LN
320E LRR
320E RR
321C
321D LCR
322C
322C FM
323D L
323D LN
323D SA
323D2 L
323E L
324D
324D FM
324D FM LL
324D L
324D LN
324E
324E L
324E LN
325B L
325C
325C FM
325D
325D FM
325D FM LL
325D L
325D MH
326D L
328D LCR
329D
329D L
329D LN
329E
329E L
329E LN
330C
330C MH
330D
330D FM
330D L
330D LN
330D MH
336D
336D L
336D LN
336D2
336D2 L
336E
336E H
336E L
336E LH
336E LN
336F L
340D L
340D2 L
345B II
345B L
345C
345C L
345C MH
345D
345D L
345D L VG
349D
349D L
349E
349E L
349E L VG
349F L
350
350 L
365B
365B II
365B L
365C
365C L
365C L MH
374D L
374F L
375
375 L
385B
385C
385C FS
385C L
385C L MH
390D
390D L
390F L
568 FM LL
E200B
M325D L MH
M325D MH
FORWARDER
554
LOGGER
322C
MOBILE HYD POWER UNIT
323D L
323D LN
324D LN
325C
325D
329D L
329E
330D
330D L
336D L
365C L
385C
385C L
MOTOR GRADER
12M
12M 2
12M 3
12M 3 AWD
140M
140M 2
140M 3
140M 3 AWD
14M
160M
160M 2
160M 3
160M 3 AWD
16M
24H
24M
SHEAR-STRAIGHT
S465
THUMB
HYDRAULIC
TRACK FELLER BUNCHER
TK1051
UNDERCARRIAGE
OEMS
VIBRATORY COMPACTOR
CB-434D
CB-534D
CD-54
CP-54B
CP-68B
CP-74B
CS-54B
CS-56B
CS-64B
CS-66B
CS-68B
CS-74B
CS-76B
CS-78B
Information:
All 3406, 3408 and 3412 EnginesDescription of Change: A new piston pin retainer (snap ring) is now used in the connecting rod and piston groups on the above engines. The new retainer has a larger outside diameter in the free (relaxed) position and a wider cross section. These changes permit the new retainer to fit tighter against the diameter of the groove in the piston. Two different retainer rings have formerly been used. The first retainer used did not fit tight enough against the diameter of the groove. This permitted the retainer to turn in the groove. This caused wear on the retainer ring and groove. In some cases the retainer had worn the groove through the bottom of the piston.
The second retainer used was a temporary replacement for the first retainer. This second retainer was same size as the original one, but was more rigid.
Adaptable As: The new 8N7295 Retainer is a direct replacement for the former 83214 Retainer (first) and 8N8058 Retainer (second) in these engines. When a replacement of the retainers is made, both retainers on a piston must be changed. The new retainer is in effect with the serial numbers shown in the chart. IDENTIFICATION: The retainer rings do not have a part number on them. Identification must be made by their cross section width. See the illustration. The new 8N7295 Retainer in the relaxed position has a cross section width of 4.70 0.20 mm (.185 .008"). Both the former 83214 and 8N8058 Retainers have a width of 4.32 .18 mm (.170 .007").
The pistons in these engines can be checked to see if they are usable according to the procedure that follows.
If the groove in the piston is visibly worn, a new piston must be installed.
If the groove in the piston does not show any visible wear, install new retainers and check their fit. Check the amount of force needed to turn the new retainer in the used piston. A comparison of this force with that needed for a new retainer in a new piston can be made. If the force needed for the used piston is much less, a new piston must be installed.
Cross section area of retainer.
The second retainer used was a temporary replacement for the first retainer. This second retainer was same size as the original one, but was more rigid.
Adaptable As: The new 8N7295 Retainer is a direct replacement for the former 83214 Retainer (first) and 8N8058 Retainer (second) in these engines. When a replacement of the retainers is made, both retainers on a piston must be changed. The new retainer is in effect with the serial numbers shown in the chart. IDENTIFICATION: The retainer rings do not have a part number on them. Identification must be made by their cross section width. See the illustration. The new 8N7295 Retainer in the relaxed position has a cross section width of 4.70 0.20 mm (.185 .008"). Both the former 83214 and 8N8058 Retainers have a width of 4.32 .18 mm (.170 .007").
The pistons in these engines can be checked to see if they are usable according to the procedure that follows.
If the groove in the piston is visibly worn, a new piston must be installed.
If the groove in the piston does not show any visible wear, install new retainers and check their fit. Check the amount of force needed to turn the new retainer in the used piston. A comparison of this force with that needed for a new retainer in a new piston can be made. If the force needed for the used piston is much less, a new piston must be installed.
Cross section area of retainer.
Cat SIS web machinery list:
Parts bolt Caterpillar catalog:
330B L, 330C, 330C FM, 330C L, 330D FM, 330D L, 330D MH, 345B, 345B II, 345B II MH, 345B L, 345C, 345C L, 345C MH, 551, 552, OEMS, TK751, TK752
330, 330 FM L, 330 L, 330B, 330B L, 345B II, 345B II MH, 345B L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 350, 365B, 365B II, 365B L, 385B, 525C, 525D, 535C, 535D, 545C, 545D, 555D, GSH15, GSH15-6...
320D, 330C L, 330D L, 336D, 336D2, 336E, 336E H, 336E L, 336E LH, 336F L, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L VG, 349F L, 365B, 365B II, 365B L, 365C, 36...
320E LRR, 320E RR, 323E L, 325D L, 328D LCR, 329D, 329D L, 329E, 329E L, 349D, 374D L, 374F L, 390D, 390D L, 390F L
330, 330 FM L, 330 L, 374F L, 390F L, OEMS
325B L, 330, 330 FM L, 330 L, 330B, 330B L, OEMS
330, 330 FM L, 330 L, 330B, 330B L, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 L, 340D L, 340D2 L, E300B, M330D, W330B
345B II, 345C, 345C L, 365B, 365B II, 365B L, 365C, 365C L, 365C L MH, 374D L, 374F L, 385C
325C, 330C L, 330D L
345B II, 345C, 345D L, 349D, 349D L, 349E, 349E L, 349E L VG, 349F L
365C, 365C L, 374D L, 374F L, 385C, 385C FS, 385C L, 390D, 390D L
336D, 336D L, 336D LN, 336D2, 336E, 336E H, 336E L, 336E LH, 336F L, 390F L
1525361
BOLT
RT100, TH103, TH62, TH63, TH82, TH83
RT100, TH103, TH62, TH63, TH82, TH83
1450872
BOLT
TH103, TH62, TH63, TH82, TH83
TH103, TH62, TH63, TH82, TH83
8I4475
BOLT
TH62, TH63, TH82, TH83
TH62, TH63, TH82, TH83
8I4595
BOLT
TH103, TH62, TH63, TH82, TH83
TH103, TH62, TH63, TH82, TH83
1361914
BOLT
TH103, TH62, TH63, TH82, TH83
TH103, TH62, TH63, TH82, TH83
120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 135H, 135H NA, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H,...
0975261
BOLT HEX HEAD
RT100, RT50, TH63, TH82, TH83
RT100, RT50, TH63, TH82, TH83
0975301
BOLT
RT100, RT50, TH103, TH62, TH63, TH82, TH83
RT100, RT50, TH103, TH62, TH63, TH82, TH83
0975239
BOLT
RT100, RT50, TH103, TH63, TH82, TH83
RT100, RT50, TH103, TH63, TH82, TH83
120B, 120G, 120H, 120H ES, 120H NA, 120K, 120K 2, 127, 12E, 12G, 12H, 12H ES, 12H NA, 12K, 130G, 135H, 135H NA, 140, 140B, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 143H, 160G, 160H, 160H ES, 160H N...
0961331
BOLT-SOCKET HEAD
256C, 262C, 272C, 277C, 287C, 297C, 312, 315, 317, 320 L, 320B, 320N, 322, 322 FM L, 322B, 324D L, 325, 325 L, 325B, 325D MH, 330, 330 FM L, 330 L, 330B, 330D, 330D L, 330D MH, 345C, 345C MH, 740, 777...
256C, 262C, 272C, 277C, 287C, 297C, 312, 315, 317, 320 L, 320B, 320N, 322, 322 FM L, 322B, 324D L, 325, 325 L, 325B, 325D MH, 330, 330 FM L, 330 L, 330B, 330D, 330D L, 330D MH, 345C, 345C MH, 740, 777...
120H, 120H ES, 12H, 12H ES, 12M 2, 135H, 140H, 140H ES, 143H, 14H, 14H NA, 160H, 160H ES, 163H, 163H NA, 16H, 16H NA, 2384C, 2484C, 24M, 307B, 311B, 312B, 315B, 318B, 320B, 324D L, 325B, 325D MH, 330B...