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ELBOW 6I6721 - Caterpillar



6I6721 ELBOW Caterpillar parts 115, 1190, 1190T, 1290T, 1390, 2290, 2390, 2391, 2491, 2590, 315C, 320, 320 L, 320B, 320C, 320D, 320D L, 320D2, 320D2 L, 320E LN, 321C, 322, 322 FM L, 322 L, 322 LN, 322B, 322B L, 322B LN, 322C, 322C ... ELBOW
Rating:
17
Alternative (cross code) number:
CA6I6721
6I-6721
6I6721
Caterpillar 6I6721 ELBOW
Weight: 3 pounds 1 kg.
Information:
ANGLE  90 
BOLT HOLE DIAMETER/THREAD  0000014.0000  mm
BOLT PATTERN LENGTH  57.2  mm
BOLT PATTERN WIDTH  27.8  mm
ORFS DASH SIZE  16 
ORFS HEIGHT  29.5  mm
ORFS LENGTH  44.5  mm
ORFS THREAD SIZE  1.44-12 
STANDARD SEAL PART NUMBER  5K9090 

Buy ELBOW 6I6721 Caterpillar genuine, new aftermarket tractor parts with delivery
EXCAVATOR, WHEELED EXCAVATOR,

Compatible equipment models: 6I6721:

EXCAVATOR  315C   320   320 L   320B   320C   320D   320D L   320D2   320D2 L   320E LN   321C   322   322 FM L   322 L   322 LN   322B   322B L   322B LN   322C   322C FM   323E L   324D   324D L   324E   324E L   324E LN   325   325 L   325 LN   325B   325B L   325C   325C FM   325C L   325D L   325D MH   329D   329D L   329D LN   329E   329E L   329E LN   330C   330C L   330D MH   345C   345C L   345C MH   345D   345D L   345D L VG   349D   349D L   M325D L MH   M325D MH  
HAMMER  115   H140CS   H140DS  
MOBILE HYD POWER UNIT  330C  
TRACK FELLER BUNCHER  1190   1190T   1290T   1390   2290   2390   2391   2491   2590   511   521   521B   522   522B   532   541   541 2   551   552   552 2   TK741   TK751   TK752  
WHEELED EXCAVATOR  M330D   W345C MH   Caterpillar
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Engine: Commercial
AllIntroduction
Note: Caterpillar recommends S O S Services for monitoring the condition of the fluid systems in your equipment. S O S Services enhance a variety of Caterpillar Preventive Maintenance Programs.This article explains the reasons for elevated copper levels that are sometimes observed in used oil samples. These elevated copper levels can be dramatic. Customers that observe these elevated copper levels are very concerned about excessive wear or component failure. In most cases, the customer should not be concerned about these elevated copper levels: the condition does not usually indicate excessive wear and/or component failure. However, it is important to understand the cause of the condition.Affected Compartments
The elevated copper levels that are described in this article occur in compartments with a lubrication system that has an oil cooler with copper tubes.Many Caterpillar Engines use copper oil cooler cores. Consult your Caterpillar dealer about the type of oil cooler that is used for your engine.Oil Cooler Break-In
Note: S O S Services oil analysis measures the levels of several elements in used oil samples: copper, iron, chrome, lead, aluminum and silicon. Many of the S O S Services labs also analyze the used oil for sodium and for potassium in order to check for contamination of the oil by coolant.Elevated copper levels are usually associated with the break-in of a new oil cooler. The copper level in the used oil may have a dramatic increase. However, the other wear elements in the used oil remain at normal levels. S O S Services analysts are familiar with normal levels of wear elements in used oils and the analysts are trained to identify this condition of elevated copper levels.When this break-in of the oil cooler occurs, the copper level can reach several hundred parts per million (ppm). In some cases, the copper level can exceed 1000 ppm. Usually, the copper levels diminish within two or three oil changes.Illustration 1 represents the typical trend of copper levels. The graph demonstrates some results from analyses that were performed during the development of a project. The engine oil was analyzed at every 50 service hours and the engine oil was changed at every 250 service hours.
Illustration 1 g00955365
The engine oil samples that were obtained during the initial 250 service hours revealed an increasing copper level that exceeded 200 ppm. Between the first oil change and the second oil change, the copper level rose to less than 50 ppm. By the third oil change, the copper level was normal.Causes of Elevated Copper Levels
Elevated copper levels occur when copper dissolves from the surface of the oil cooler tubes. The copper is in a solution with the oil and an insignificant amount of copper is removed from the oil cooler's tubes.After a period of time, a protective coating forms on the copper tubes and the reaction stops. The engine will not be damaged and the elevated copper levels will gradually decrease.For new engines, this reaction typically occurs within the first two oil change intervals. However, this reaction can

Cat SIS web machinery list:

Caterpillar parts catalog
323F LN Mobile Hydraulic Power Unit RGP00001-UP (MACHINE) POWERED BY C4.4 Engine
1190 Track Feller Buncher BZK00001-02160 (MACHINE)
1290 T Track Feller Buncher BZM00001-UP (MACHINE)
TK741 Track Feller Buncher 20200001-UP (MACHINE) POWERED BY C-9 Engine
TK751 Track Feller Buncher 30100001-01114 (MACHINE) POWERED BY C-9 Engine
TK752 Track Feller Buncher 30200001-UP (MACHINE) POWERED BY C-9 Engine
1390 Track Feller Buncher B3F00001-02310 (MACHINE)
1190 Track Feller Buncher BZK02160-UP (MACHINE)
1190 T Track Feller Buncher BZL02210-UP (MACHINE)
511 Track Feller Buncher 51100001-UP (MACHINE) POWERED BY C-9 Engine
521 Track Feller Buncher 52100001-UP (MACHINE) POWERED BY C-9 Engine
522 Track Feller Buncher 52200001-UP (MACHINE) POWERED BY C-9 Engine
532 Track Feller Buncher 53200001-UP (MACHINE) POWERED BY C-9 Engine
541 Track Feller Buncher 54100001-UP (MACHINE) POWERED BY C-9 Engine
551 Track Feller Buncher 55100001-UP (MACHINE) POWERED BY C-9 Engine
552 Track Feller Buncher 55200001-UP (MACHINE) POWERED BY C-9 Engine
1390 Track Feller Buncher B3F02310-UP (MACHINE)
2390 Track Feller Buncher P3H00001-UP (MACHINE)
2391 Track Feller Buncher P4K00001-UP (MACHINE) POWERED BY C-9 Engine
2491 Track Feller Buncher P5J00001-UP (MACHINE) POWERED BY C9 Engine
2590 Track Feller Buncher P6B00001-UP (MACHINE) POWERED BY C9 Engine
2290 Track Feller Buncher P2D00001-UP (MACHINE) POWERED BY C9 Engine
541 Series 2 Track Feller Buncher F7D00001-UP (MACHINE) POWERED BY C9 Engine
521B TRACK FELLER BUNCHER F7B00001-UP (MACHINE) POWERED BY C9 Engine
522B TRACK FELLER BUNCHER F7C00001-UP (MACHINE) POWERED BY C9 Engine
552 Series 2 Track Feller Buncher F7G00001-UP (MACHINE)
M325D MH & M325D L MH Wheeled Material Handler ETE00001-UP (MACHINE) POWERED BY C7 Engine
326F L Excavator TMR00001-UP (MACHINE) POWERED BY C7.1 Engine
330F L Excavator LCG00001-UP (MACHINE) POWERED BY C7.1 Engine
320D2 & 320D2 L Excavators TGJ00001-UP (MACHINE) POWERED BY C7.1 Engine
323F LN Excavator YEC00001-UP (MACHINE) POWERED BY C4.4 Engine
323F SA Excavator FA200001-10100 (MACHINE) POWERED BY C4.4 Engine
323F SA Mobile Hydraulic Power Unit P7P00001-UP (MACHINE) POWERED BY C4.4 Engine
320D2 & 320D2 L Excavators ESG00001-UP (MACHINE) POWERED BY C7.1 Engine
G320B WH Waste Handling Grapple Z2G00001-UP (MACHINE)
326D2 L Excavator KER00001-UP (MACHINE) POWERED BY C7.1 Engine
326F L Excavators EBK00001-UP (MACHINE) POWERED BY C7.1 Engine
326D2 L Excavator JFG00001-UP (MACHINE) POWERED BY C7.1 Engine
323F LN Excavator MFY00001-UP (MACHINE) POWERED BY C4.4 Engine
326F L & 326F LN Excavators GGJ00001-UP (MACHINE) POWERED BY C7.1 Engine
330F L Excavator HCK00001-UP (MACHINE) POWERED BY C7.1 Engine
323F LN Excavator FA210101-UP (MACHINE) POWERED BY C4.4 Engine
325B Excavator 2JR00001-UP (MACHINE)
325C LCR Mobile Hydraulic Power Unit BKW00001-UP (MACHINE) POWERED BY 3126B Engine
345C L Factory Installed Right Front Corner Generator Set (266-3360 Generator Arrangement) PJW00001-UP (MACHINE)
325B L Excavator 2JR00001-UP (MACHINE) POWERED BY 3116 Engine
325B & 325B LN Excavators 6DN00001-UP (MACHINE) POWERED BY 3116 Engine
322B L Excavator 1YS00001-UP (MACHINE) POWERED BY 3116 Engine
322B L & 322B LN Excavators 1ZS00001-UP (MACHINE) POWERED BY 3116 Engine
325B L & 325B LN Excavators 4DS00001-UP (MACHINE) POWERED BY 3116 Engine
320B, 320B L, 320B LN, 320B N & 320B S Excavators 1XS00001-UP (MACHINE) POWERED BY 3116 Engine
320C, 320C L, 320C LN, 320C S Excavators BBL00001-UP (MACHINE) POWERED BY 3066 Engine
320C & 320C L Excavators AMC00001-UP (MACHINE) POWERED BY 3066 Engine
115/H115 S,120/H120 S/H120C S,130/H130 S,140/H140 S, 160/H160 S, 180/H180 S & H195 Hydraulic Hammers 4PL00001-UP (MACHINE)
322C & 322C L Excavators BKM00001-UP (MACHINE) POWERED BY 3126 Engine
322C & 322C LN EXCAVATORS BFK00001-UP (MACHINE) POWERED BY 3126 Engine
320C & 320C L Excavators BDC00001-UP (MACHINE) POWERED BY 3066 Engine
320C & 320C L Excavators BPR00001-UP (MACHINE) POWERED BY 3066 Engine
322C L Excavator BKJ00001-UP (MACHINE) POWERED BY 3126 Engine
325C L & 325C LN Excavator CRB00001-UP (MACHINE) POWERED BY 3126 Engine
330C L & 330C LN Excavators CAP00001-UP (MACHINE) POWERED BY C-9 Engine
325C & 325C L Excavators AMH00001-UP (MACHINE) POWERED BY 3126B Engine
H140Cs and H160Cs Hydraulic Hammers BED00001-UP (MACHINE)
325C & 325C L Excavators BKW00001-UP (MACHINE) POWERED BY 3126B Engine
325C FOREST SWING MACHINES G1L00001-UP (MACHINE) POWERED BY 3126B Engine
315C & 315C L Excavators CFB00001-UP (MACHINE) POWERED BY 3046 Engine
322C FOREST SWING MACHINES BPH00001-UP (MACHINE) POWERED BY 3126 Engine
325C L Excavator BFE00001-UP (MACHINE) POWERED BY 3126B Engine
330C & 330C L Excavators JAB00001-UP (MACHINE) POWERED BY C-9 Engine
320C & 320C L Excavators MAB00001-UP (MACHINE) POWERED BY 3066 Engine
322C & 322C L Excavators DAA00001-UP (MACHINE) POWERED BY 3126 Engine
315C L Excavator ANF00001-UP (MACHINE) POWERED BY 3054 Engine
320C, 320C L, 320C LN Excavators DBG00001-UP (MACHINE) POWERED BY 3066 Engine
H140D S, H160D S & H180D S Hydraulic Hammers BXB00001-UP (MACHINE)
322C L, 322C LN Hydraulic Excavators EMR00001-UP (MACHINE) POWERED BY 3126 Engine
325C Material Handler DTF00001-UP (MACHINE) POWERED BY 3126 Engine
330C L Material Handler MKM00001-UP (MACHINE) POWERED BY C-9 Engine
320C Material Handler JPL00001-UP (MACHINE) POWERED BY 3066 Engine
325C & 325C L Excavators JLC00001-UP (MACHINE) POWERED BY 3126 Engine
330C & 330C L Excavators JCD00001-UP (MACHINE) POWERED BY C-9 Engine
322C L Hydraulic Excavator HEK00001-UP (MACHINE) POWERED BY 3126B Engine
315C & 315C L Excavators AKE00001-UP (MACHINE) POWERED BY 3046 Engine
322C Forest Swing Machine M2H00001-UP (MACHINE) POWERED BY 3126B Engine
322C Forest Swing Machines C3R00001-UP (MACHINE) POWERED BY 3126B Engine
320C & 320C L Excavators RAW00001-UP (MACHINE) POWERED BY 3066 Engine
345C L Hydraulic Excavator ESD00001-UP (MACHINE) POWERED BY C13 Engine
345C Fixed Cab Riser Material Handler M2R00001-UP (MACHINE) POWERED BY C13 Engine
345C LC Excavator DHP00001-UP (MACHINE) POWERED BY C13 Engine
345C & 345C L Excavators BWY00001-UP (MACHINE) POWERED BY C13 Engine
W345C Material Handler R5K00001-UP (MACHINE) POWERED BY C13 Engine
320C & 320C L Excavators GNG00001-UP (MACHINE) POWERED BY 3066 Engine
345C Excavator TAJ00001-UP (MACHINE) POWERED BY C13 Engine


Parts elbow Caterpillar catalog:

4K6297 ELBOW
12M 2, 12M 3, 12M 3 AWD, 140M 2, 140M 3, 140M 3 AWD, 14G, 160M 2, 160M 3, 160M 3 AWD, 215B, 215D, 219D, 225, 225D, 229, 229D, 231D, 235, 235B, 235C, 245, 307, 311, 3116, 311B, 312, 3126, 312B, 312B L,...
1170067 ELBOW
3196, 336D2, 336D2 L, 3406E, 340D2 L, 3412D, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 374F L, 5130B, 5230B, 572R II, 72...
6M5652 ELBOW
215, 215B, 215D, 219D, 321C, 328D LCR, 3406B, 3406C, 3406E, 3606, 3608, 3612, 3616, 3618, 518, 528, 54, 55, 58, 594H, 631D, 637D, 657E, 814B, 926, 930R, C-15, C-16, C11, C13, C15, C18, C27, C280-12, C...
8C3364 ELBOW
16M, 2384C, 2470C, 2484C, 24M, 2570C, 2670C, 30/30, 308C, 3126B, 312C, 318C, 319C, 320C, 322B L, 322C, 325B L, 325C, 330B L, 5130B, 533, 543, 545, 553C, 559C, 561H, 561M, 561N, 563C, 573C, 579C, 583T,...
0684174 ELBOW
215, 215B, 215D, 225, 2290, 2390, 2391, 2491, 2590, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 340D L, 511, 521, 522, 5230, 5230B, 532, 541, 541 2, 551, 552, 552 2, 627B, 633D, 63...
7D9984 ELBOW
120G, 12G, 130G, 140G, 14G, 16G, 2864C, 3306C, 330D L, 330D MH, 336D, 336D L, 336D2, 336D2 L, 336E, 336E H, 336E HVG, 336E L, 336E LH, 336E LN, 336F L, 340D L, 340D2 L, 365C, 365C L, 365C L MH, 374D L...
3P2001 ELBOW
215, 225, 227, 235, 245, 3126, 320B, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L HVG, 349E L VG, 349F L, 651E, 657E, 769C, 943, 953, 973, 980K, 980K HLG, 980M, 982M, AD30, AD40, AD45, ...
3B7896 ELBOW
120M, 120M 2, 12F, 12M, 12M 2, 12M 3, 12M 3 AWD, 140M, 140M 2, 140M 3, 140M 3 AWD, 14M, 153, 16, 160M, 160M 2, 160M 3, 160M 3 AWD, 163, 1673, 1674, 16M, 225, 312D, 3304, 3306, 3406, 3406B, 3408, 3408C...
2030351 ELBOW-AIR
14M, 16M, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 621H, 621K, 623H, 623K LRC, 627H, 627K LRC, 725, 730, 730C, 966H, 972H, 980C, C11, C13, C15, C18, C27, C32, C7, C9, CX31-C13I, C...
2101743 ELBOW
14M, 16M, 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 725, 730, 730C, 966H, 972H, 980C, 980K, 980K HLG, 980M, 982M, C11, C13, C13 XQ350, CX31-C13I, R1600H, R1700G, RM-300, TH35-C11I,...
6V3342 ELBOW-PIPE
120G, 120H, 120H ES, 120H NA, 12G, 12H, 12H ES, 12H NA, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 143H, 14G, 14H, 14H NA, 14M, 160G, 160H, 160H ES, 160H NA, 163H, 163H NA, 16G, 16H, 16H NA, 3...
1932781 ELBOW
330C, 330C L, C-9
1785425 ELBOW
311C, 312C, 312C L, 314C, 318C, 319C, 320C, 320C FM, 320C L, 320D LRR, 321C, 322C, 323D L, 323D LN
1949041 ELBOW
311C, 311D LRR, 311F LRR, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315C, 315D L, 316E L, 318D L, 318D2 L,...
2685145 ELBOW AS
311C, 311D LRR, 311F LRR, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 313D, 313D2, 313D2 LGP, 314C, 314D CR, 314D LCR, 314E CR, 314E LCR, 315C, 315D L, 316E L, 318D L, 318D2 L, 318E ...
5I8022 ELBOW
311, 311B, 311C, 312, 312B, 312C L, 320 L, 320B, 320C, 320D, 320D FM, 320D FM RR, 320D GC, 320D L, 320D LRR, 320D RR, 320N, 321D LCR, 323D L
5I7646 ELBOW
311, 311B, 311C, 311D LRR, 312, 312B, 312C, 312C L, 312D, 312D L, 313D, 314C, 314D CR, 314D LCR, 315D L, 318C, 318D L, 319C, 319D, 319D L, 319D LN, 320 L, 320B, 320B L, 320C, 320C FM, 320D, 320D FM, 3...
2976592 ELBOW
307C, 307D, 308C, 308D
2023942 ELBOW AS
303, 304, 305, 305.5, 306, 306E
1746905 ELBOW
312C, 584, 924G, 924GZ, 924H, 928HZ, 930G, CB-14B, MH3037
1809097 ELBOW
312C, 312D, 318B
2490008 ELBOW
312C, 315C, 318C, 319C
2490009 ELBOW AS
312C, 315C, 318C, 319C
2072159 ELBOW
D7R II, M313C, M313D, M315C, M315D, M315D 2, M316C, M316D, M317D 2, M318C, M318C MH, M318D, M318D MH, M322C, M322D, M322D MH
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