ISUZU Excavator Engine Crankshaft

What is the function of a crankshaft?
The crankshaft is essentially the backbone of the internal combustion engine. The crankshaft is responsible for the proper operation of the engine and converting a linear motion to a rotational motion. Crankshafts should have very high fatigue strength and wear resistance to ensure long service life.

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How often should I check the crankshaft on my excavator for wear and tear?
Checking the crankshaft on your excavator for wear and tear is an essential part of equipment maintenance. The frequency of these checks can depend on several factors, including the manufacturer’s recommendations, the age of the excavator, the operating conditions, and the intensity of use.

As a general guideline, it’s advisable to inspect the crankshaft as part of a routine maintenance schedule. For heavy-duty excavators operating in demanding conditions, more frequent inspections may be necessary. Regular visual inspections, along with scheduled maintenance intervals, can help identify any signs of wear and tear early on, preventing potential issues and minimizing downtime.

Ultimately, it’s best to consult the excavator’s manual or the manufacturer’s recommendations for specific guidance on the frequency of crankshaft inspections based on your equipment’s make, model, and usage.

What are the best practices for maintaining the crankshaft in an excavator?
Maintaining the crankshaft in an excavator is crucial for ensuring the proper functioning of the machine. Here are some best practices for maintaining the crankshaft:

Regular Inspections: Perform routine visual inspections of the crankshaft for any signs of wear, damage, or misalignment. This can help in identifying potential issues early on.

Lubrication: Ensure proper lubrication of the crankshaft and its bearings as per the manufacturer’s recommendations. Adequate lubrication reduces friction and wear on the crankshaft components.

Monitoring Vibrations: Monitor the vibrations of the excavator during operation as excessive vibrations can indicate issues with the crankshaft or its related components.

Proper Handling: During maintenance or repair activities, handle the crankshaft with care to avoid any physical damage or distortion.

Alignment Checks: Periodically check the alignment of the crankshaft to ensure it is within the specified tolerances. Misalignment can lead to premature wear and failure.

Timely Repairs: Address any issues related to the crankshaft promptly to prevent further damage to the component and other connected parts.

Name Engine Type Part No./O.E.M Exact Cast(QT800-3) Forged
General Nitrided Hardening Hardening
ISUZU 4JA1 8-94455-240-1 370 390 410 850
4JB1 8-94443-662-0/892190927 380 400 420 780
4JB1T 894453525-2/894445570-0/897331853-0/8-94251-729-0 480 510 540 900
4JH1/4KH1 8-97254611-1,8-97940-743-0,8-97249-041-0 420 440 460 900
4JG2/4JG1 8-97023-182-1 510 540 570
4JJ1 8-97311-632-1/8-97311-632-1-151 570 600 630
4JJ1-T Small head with 6-Hole 650 680 710
4JK1 8-98131-999-0 520 550 570
4BA1 570 600 630
4BB1(NEW) MAIN:80 620 650 680
4BB1(OLD) 5-12310-162-0,MAIN:76, With gear 630 660 690
4BC2/4BC1/DB33 5-12310-161-0, DB33 450 480 510 1350
4BD1 5-12310-163-0 560 590 620 1350
4BD1T/4BD2T 5-12310-189-1 750 790 820
4BE1 8-94416-373-2 500 530 560
4BG1 8-97112-981-2 620 650 680
4HE1 8-97165-483-0/8-97352-534-2 Rodjournal :66 720 760 800 1800
4HE1T/4HK1 8-94396-737-3/8-98029-270-0 Rodjournal :73 700 740 780 1800
4HF1 8-97033-171-2,8-97112-981-3 640 670 700 1500
4HG1 897033-171-2/897112-981-0/897146520-2 640 670 700 1500
4HL1 720 750 780
4ZA1 480 500 520
4ZB1 480 500 520
4ZC1 480 500 520
4ZD1 8-94136-164-0/8-94146-320-2 420 440 460
4ZE1 8-94163-188-0/8-97023-674-0/8-97107-920-1/8-97107-920-3/8973584760 440 460 480
3LB1 450 470 490
3LD1 480 500 520
4LE1 480 510 530
4LE2 8-97115-177-2 480 510 530
C190 5-12310-188-0 500 530 550
C223 8-94118-828-0,8-94139-669-0 500 530 550
C240 9-12310-413-0/8941396690/8941597680 430 460 480
G161 8-94200-655-0,8-94156-835-0 390 410 430
G200 8-94201-038-0,8-94200-655-0,8-9156-836-0,8-94156-836-1 390 410 430
C14NZ OPEL 450 470 490
C22NE 8-90530-454-0,OPEL,ISUZU,GM 450 470 490 750
6HE1 8-94395-025-0 1000 1050 1100 2500
6HH1 8-97603-003-0 1000 1050 1100
6HE1T/6HK1 8-94395-125-0/8-97603-004-0/8-94396-737-4 1000 1050 1100 2500
6HF1 1000 1050 1100
6BB1(OLD) MAIN:76, With gear 950 1000 1040
6BB1(NEW) MAIN:80,1-12310-445-0/1-12310-436-0 930 980 1020
6BD1 1-12310-437-0 850 900 940 2050
6BD1T 1-12310-407-0/5-12310-151-0 920 970 1020 2300
6BF1 1000 1050 1100 2300
6BG1 1-12310-448-0 850 900 940 2050
6QA1 1-12310-386-1 1950 2050 2150
6RB1 1-12310-503-2,EX400 2100 2200 2300
6SA1 1-12310-569-0 1280 1340 1380
6SD1T 1-12310-671-0 1500 1580 1650
6WG1 1-12310675-1 4300 4500 4600 8500现货
DH100 9-1211-1670-0 1800 1900 2000
DA120 1400 1480 1550
10PB1 2600 2700 2800
10PD1 2900 3000 3100
10PE1 2900 3000 3100
10PC1 2600 2700 2800
12PC1 2500 2600 2700
12PD1 3050 3200 3300
12PE1 3050 3200 3300
BENZ OM352整体 8 or 12 Balance 1050 1100 1150
OM352分体 3520303402/3520307802/3520307402 1200 1240 1280 2200
OM355 35503066(7、8)01/3450305001 2150 2250 2320 3800
OM314 3140303202/3140305502 880 920 950 2400
OM360 3600301601/3600301201 1800 1880 1950
OM364 3640301102/3640300702 1000 1050 1100
OM366 3660301102/3660300702 1050 1100 1150 2000
OM401 4010302301/4010302501 1800 1850 1900 3000
OM402 4020304301/4020303701 2200 2300 2350 3500
OM403 4030303001/4230303301/4230303401 2350 2450 2530 4000
OM421 4210301701/4210302401/4210302501/10302501 2000 2050 2100
OM423 4230301501/4230303301/4230303401 2450 2550 2630
OM422 4220304301/4220303701 2300 2370 2420
OM651 A6510302501 4or8-Balance 900 930 950 1800
OM441 2000 2050 2100
OM442 4420304301/4420303701 2200 2300 2350 3500
OM407/OM427 4070301601/4070302401 2500 2600 2700
OM447/OM457 4470300701/4470300801/4470300901/4570300401 2500 2600 2700 4500
MITSUBISHI 4D30/4D31 ME013667,MD012320,23100-41000,23111-41700 450 480 510 1250
4D32 MD187921,ME017152 450 480 510 1250
4D33 ME-018297 480 510 540 1300
4D34 ME136680 470 500 530 1300
4D34T 23100-45000,ME017354T 480 510 540 1350
4D35 MD013680,4Counterbalance 540 570 600
4D35 MD013680,8Counterbalance 560 590 620
4D36 550 580 620
4DR5/4DR7 450 480 510
4D55 23111-42001,23111-42000 380 400 420
4D56/4D56T ME102601/MD376961/23111-42901/23111-42011 370 390 410 750
4D56-T2(NEW) MD374408/23111-42910 370 390 410 750
4D56U 1100A135,CAT-C12 400 420 440 780
4D68 MD188571 400 430 450
4G13/4G14/4G15 MD138992/MD327703/23111-21050 330 350 370
4G18 MD332125,MD352125 350 370 390
4G32/4G33/4G34 MD000784 450 470 490
4G41 MD010667 360 380 400
4G54 MD027474/118113 370 390 410 800
4G63 MD187924/346022 360 380 400 800
4G64 MD187921/346026 360 380 400 800
4G93 MD183525 300 330 350
4G94 MD367450,MD367449 320 330 350
6G72 MD144525,MD357487 550 580 600 850
6G74 MD305941,MN119761 570 600 620 900
4A13 1005023 320 340 360
4A15 1005023A 320 340 360
4A90 360 390 410
4A91 MW250868-9 360 390 410
4A92 1000B741 390 410 430
4B10 350 380 400
4B11/4B12 300 320 340
4M40 ME202013/ME203551/MD620109 450 480 510
S4E 500 530 560
S4F 500 530 560
S4S 32A20-00010 520 550 580
S4Q 600 630 660
S3L STROKE-1:78,STROKE-2:92 750 780 800
S4L 880 910 930
S4KT 4W3989/4W3579,5I7844 650 680 710 1700
S6E 34720-30011 1800 1850 1900
S6KT 34320-00010/5I7671 1000 1050 1100 2250
S6S 900 950 1000
6D14/6D15 ME032364 920 970 1020 2500
6D14T/6D15T ME032800,ME079127 930 980 1030 2600
6D16/6D16T ME072197,23100-93072, D6BR 930 980 1030 2700
6D16T-2 MAIN:84、ROD:65 1000 1050 1100 2800
6D16T-3 MAIN:84、ROD:70 1050 1100 1150
6D17 MAIN:80、ROD:65 1050 1100 1150
6D17-2 MAIN:84、ROD:65 1050 1100 1150
6D17-3 MAIN:84、ROD:70 1100 1150 1200
6D31T ME082505 850 890 930 2000
6D34T ME300086 860 900 940 2050
6D20/6D22 ME999368, D6CA 1700 1780 1860 3800
6D24-1 MAIN:100、ROD:84、STROKE:150 1900 2000 2100
6D24-2 MAIN:120、ROD:90、STROKE:155 3200 3350 3500
6D40 1900 2000 2100
6DB1/6DB10 1850 1950 2030
8DC20/8DC20A 2300 2360 2420
8DC80/81/82 ME997083/ME999355 2200 2300 2360
8DC90/91/92 ME996186 2180 2280 2350
8DC10/8DC11 3100 3200 3300
TOYOTA 2F 11702-60013,11702-76009-71 800 850 880
3F 11701-61010、11702-61010 900 950 1000
1AR 400 430 460 750
2AR 13401-36011 550 580 600
1GR 13401-31011,13401-31060 900 930 950
2GR 13401-0P040/31020/31040 900 930 950
5R 13411-44900,13411-49167 400 430 450
12R 13411-31902,13411-31011 380 410 440
22R/21R 13411-38010 390 420 440
1Z 13411-78300-71 520 550 580
2Z 530 560 590
11Z 13411-78760-71 820 860 900
12Z 13411-78780-71 820 860 900
13Z 820 860 900
14Z 820 860 900
1DZ 400 430 450
1AZ 13401-28030,13401-28040 380 410 430
2AZ 13401-28010 380 410 430 650
1ZZ 13401-22020,13411-7830071 300 330 350
3ZZ 13401-22030 300 330 350
4ZZ 13401-22040 300 330 350
1NZ 13401-21020、13401-0C010 380 410 430
2NZ 13401-21030 380 410 430
1ZR 13401-0T010,13401-37011 360 390 420 550
2ZR 13401-0T020 360 390 420 550
2H 13401-76011-71,13401-68010 1100 1150 1200
3P/4P 13411-7600171,13411-96002 400 420 440
B/1B(OLD) 13401-56020,13401-56021,6 Hole 550 580 610
1B/2B(NEW) 13401-56030,8 Hole 550 580 610
3B/11B/13B 13401-58010/13401-58020/13401-58018/56040 500 530 560
14B 13401-58030/58021/58050 510 540 570
15B 13401-58021 520 550 580
2J 13411-96100 520 550 580
2L 13401-54040、13401-54050(6孔) 390 410 430
2LT 13401-54070 390 410 430
3L 13401-54020/54060/54080/54100 380 400 420
3L-E 400 420 440
5L 13401-54061 380 400 420
5L-E 13411-54150 400 420 440
1E/2E/4E 13401-11050 220 240 250
3E/5E 13401-11040 320 350 370
1C/2C 13411-64908 320 350 370
1RZ/2RZ 13411-75900 360 380 400
3RZ 13411-75901 410 440 470
1TR 13401-75010 380 410 430
2TR 13401-75020,13401-0C021 380 410 430 850
1KZ-T/1KZ-TE 13401-30010,13401-67010. 6or8 Hole 450 480 510 850
1Y 13411-72010,13411-71900 350 370 390
2Y 13411-72900 320 340 360
3Y/4Y 13411-73010,13411-73900 300 320 340
4AF 13411-15900 350 370 390
4AFE 13411-16900 350 370 390
5A 13411-15900 360 380 400
7A/8A 13411-16903 360 380 400
3S 13411-74908 420 450 480 700
3SZVE 1.5L 13411-B1020,13411-97401 360 380 400
2SZVE 1.3L 13401-33011,13411-97401 360 380 400
5S 13401-74010 420 450 480 700
3K/4K/5K 13411-76006-71 400 420 440
1KD 13401-30030/30040/30050/0L050,STROKE:103 430 460 490 830
2KD 13401-30020/30060/0L030,STROKE:95 430 460 490 830
1HZ/1HD-T 13411-17012 750 790 820
1FZ 13401-66021 760 800 830
1GD 13401-0E020 620 650 670
2GD 13401-0E010 620 650 670
1VD 13401-51010 1750 1800 1830

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