Komatsu S6D155-4S-DR Cylinder Block Parts Hub

Komatsu S6D155-4S-DR Cylinder Block Parts is a focused 19PARTS hub for buyers working inside a specific Komatsu engine model and repair system. It is meant to reduce guesswork by tying engine-model navigation to related product listings and part-number references.

Diagram callout lookup for Komatsu S6D155-4S-DR Cylinder Block Parts

Use each diagram together with the table directly below it. The Diagram Ref. column corresponds to the location number shown on that specific image. Clickable part numbers link to matching 19PARTS product pages where a product match exists.

S6D155-4S-DR — Power Take Off

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060060a.png
ENGINES/s6d1555r/060060a.png · 27 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
3 06000-06214 Bearing,Ball 1 SN: 52707-UP
7 07000-05165 O-Ring (K3) 1 SN: 52707-UP
10 01530-06214 Nut 1 SN: 52707-UP
11 01658-26223 Washer (K3) 1 SN: 52707-UP
13 07000-05150 O-Ring (K3) 1 SN: 52707-UP
14 01010-31030 Bolt 6 SN: 52707-UP
15 01602-01030 Washer,Spring 6 SN: 52707-UP
16 01641-21016 Washer 1 SN: 52707-UP
17 01640-21016 Washer 1 SN: 52707-UP
19 01010-31230 Bolt 6 SN: 52707-UP
20 01602-01236 Washer,Spring 6 SN: 52707-UP
21 6128-21-4321 Gear,Idle 1 SN: 52707-UP
22 06002-30217 Bearing 2 SN: 52707-UP
24 6128-21-4340 Retainer,Bearing 1 SN: 52707-UP
25 6128-21-4600 Shim Ass'Y (K3) 1 SN: 52707-UP
25 6128-21-4610 Shim¤ 1.0Mm 4 SN: 52707-UP
25 6128-21-4620 Shim¤ 0.5Mm 2 SN: 52707-UP
25 6128-21-4630 Shim¤ 0.1Mm 1 SN: 52707-UP
28 6128-21-4510 Shaft 1 SN: 52707-UP
30 01010-31020 Bolt 6 SN: 52707-UP
31 01643-31032 Washer 6 SN: 52707-UP
32 06000-06010 Bearing 2 SN: 52707-UP
34 6128-21-4540 Collar 1 SN: 52707-UP
37 07000-03110 O-Ring (K3) 1 SN: 52707-UP
38 07000-03095 O-Ring (K3) 1 SN: 52707-UP
39 01010-31245 Bolt 2 SN: 52707-UP
40 01602-01236 Washer,Spring 2 SN: 52707-UP

S6D155-4S-DR — Cylinder Block

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060010a.png
ENGINES/s6d1555r/060010a.png · 27 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 07046-15020 Plug 1 SN: 52707-UP
4 04020-01842 Pin,Dowel 2 SN: 52707-UP
5 04020-00820 Pin,Dowel 2 SN: 52707-UP
10 07040-11409 Plug 1 SN: 52707-UP
11 07005-01412 Gasket (K2) 1 SN: 52707-UP
12 04020-01024 Pin,Dowel 6 SN: 52707-UP
22 04020-00616 Pin,Dowel 2 SN: 52707-UP
24 6127-21-1741 Washer 14 SN: 52707-UP
26 07000-62016 O-Ring (K2) 1 SN: 52707-UP
29 07000-62016 O-Ring (K2) 1 SN: 52707-UP
30 01010-30818 Bolt 6 SN: 52707-UP
31 01602-00825 Washer,Spring 6 SN: 52707-UP
34 6127-21-2252 Seal,Crevice (K2) 6 SN: 52707-UP
35 6127-21-2221 O-Ring,Center (K2) 6 SN: 52707-UP
36 6127-21-2241 O-Ring,Lower (K2) 6 SN: 52707-UP
42 01010-31025 Bolt 4 SN: 52707-UP
43 01602-01030 Washer,Spring 4 SN: 52707-UP
45 6127-51-6920 Gasket (K2) 1 SN: 52707-UP
46 01010-31020 Bolt 2 SN: 52707-UP
47 01602-01030 Washer,Spring 2 SN: 52707-UP
49 6127-21-7401 Cap 1 SN: 52707-UP
50 6128-21-7450 Ring,Seal 1 SN: 52707-UP
51 6127-21-6521 Gasket (K2) 1 SN: 52707-UP
53 01602-00825 Washer,Spring 7 SN: 52707-UP
54 01010-30845 Bolt 1 SN: 52707-UP
57 01010-31016 Bolt 1 SN: 52707-UP
58 01602-01030 Washer,Spring 1 SN: 52707-UP

S6D155-4S-DR — Oil Pan

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060040a.png
ENGINES/s6d1555r/060040a.png · 18 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
3 6693-22-5600 Valve Ass'Y 1 SN: 52707-UP
5 07040-02412 Plug 1 SN: 52707-UP
6 04020-00514 Pin 1 SN: 52707-UP
7 07000-63028 O-Ring (K2) 1 SN: 52707-UP
8 01010-31025 Bolt 2 SN: 52707-UP
9 01602-01030 Washer,Spring 2 SN: 52707-UP
10 01640-21016 Washer 2 SN: 52707-UP
11 6127-21-5850 Gasket (K2) 1 SN: 52707-UP
12 01010-31035 Bolt 36 SN: 52707-UP
13 01010-31030 Bolt 11 SN: 52707-UP
14 01602-01030 Washer,Spring 47 SN: 52707-UP
15 01640-21016 Washer 47 SN: 52707-UP
18 6127-21-5550 Gasket (K2) 1 SN: 52707-UP
20 01602-00825 Washer,Spring 2 SN: 52707-UP
23 01010-30820 Bolt 1 SN: 52707-UP
24 01580-00806 Nut 1 SN: 52707-UP
25 01602-00825 Washer,Spring 1 SN: 52707-UP
26 01641-20812 Washer 1 SN: 52707-UP

S6D155-4S-DR — Flywheel And Flywheel Housing

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060050a.png
ENGINES/s6d1555r/060050a.png · 16 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
5 07046-15520 Plug 1 SN: 52707-UP
6 07043-00211 Plug 3 SN: 52707-UP
9 04020-01434 Pin,Dowel 4 SN: 52707-UP
10 6127-21-4813 Gasket (K2) 1 SN: 52707-UP
11 01010-31845 Bolt 4 SN: 52707-UP
12 01010-31855 Bolt 7 SN: 52707-UP
13 01010-31870 Bolt 3 SN: 52707-UP
14 01643-21845 Washer 14 SN: 52707-UP
16 07000-65220 O-Ring (K2) 1 SN: 52707-UP
17 01010-31025 Bolt 4 SN: 52707-UP
18 01602-01030 Washer,Spring 4 SN: 52707-UP
24 01643-31232 Washer 6 SN: 52707-UP
25 6128-21-4230 Seal¤ Rear (K2) 1 SN: 52707-UP
27 6127-11-1620 Washer 6 SN: 52707-UP
30 01010-61845 Bolt 8 SN: 52707-UP
31 01643-21845 Washer 8 SN: 52707-UP

S6D155-4S-DR — Gear Case And Gear

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060030a.png
ENGINES/s6d1555r/060030a.png · 16 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 04020-01434 Pin,Dowel 2 SN: 52707-UP
3 04020-00616 Pin,Dowel 2 SN: 52707-UP
8 01582-01008 Nut 6 SN: 52707-UP
9 01602-01030 Washer,Spring 6 SN: 52707-UP
10 6127-21-3160 Grommet (K2) 2 SN: 52707-UP
11 6128-21-3810 Gasket (K2) 1 SN: 52707-UP
12 01010-31650 Bolt 15 SN: 52707-UP
13 01602-01648 Washer,Spring 15 SN: 52707-UP
17 04020-00820 Pin,Dowel 1 SN: 52707-UP
19 01643-31032 Washer 6 SN: 52707-UP
21 01010-31235 Bolt 4 SN: 52707-UP
22 01643-31232 Washer 4 SN: 52707-UP
26 01643-31032 Washer 2 SN: 52707-UP
28 6127-31-6221 Bushing 1 SN: 52707-UP
30 01010-31040 Bolt 3 SN: 52707-UP
32 6127-31-6261 Bearing,Thrust 1 SN: 52707-UP

S6D155-4S-DR — Gear Case Cover And Front Support

Komatsu S6D155-4S-DR Cylinder Block Parts diagram ENGINES/s6d1555r/060020a.png
ENGINES/s6d1555r/060020a.png · 18 listed callout rows
Diagram Ref. Part Number Description Qty Serial / Option Notes
2 6128-21-3230 Gasket (K2) 1 SN: 52707-UP
3 01010-31475 Bolt 9 SN: 52707-UP
4 01010-31455 Bolt 4 SN: 52707-UP
5 01602-01442 Washer,Spring 13 SN: 52707-UP
6 01010-31475 Bolt 2 SN: 52707-UP
7 01602-01442 Washer,Spring 2 SN: 52707-UP
8 01641-21423 Washer 2 SN: 52707-UP
9 01011-31625 Bolt 2 SN: 52707-UP
10 01602-01648 Washer,Spring 2 SN: 52707-UP
11 01010-31480 Bolt 1 SN: 52707-UP
12 01602-01442 Washer,Spring 1 SN: 52707-UP
13 01580-01411 Nut 1 SN: 52707-UP
15 01010-30612 Bolt 2 SN: 52707-UP
16 01602-00619 Washer,Spring 2 SN: 52707-UP
17 01642-20608 Washer 2 SN: 52707-UP
19 01010-31440 Bolt 2 SN: 52707-UP
20 01602-01442 Washer,Spring 2 SN: 52707-UP
21 6127-21-3510 Seal¤ Front (K2) 1 SN: 52707-UP

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S6D155-4S-DR Cylinder Block Parts lookup notes

Use this hub when the repair has already been narrowed to cylinder block parts. Confirm each part against the engine serial range, parts-book callout, quantity, and option notes before ordering.

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Parts-book verification before ordering

Komatsu engine parts often change by engine arrangement, serial range, diagram callout, and option note. 19PARTS uses engine-model organization to help you move from a broad Komatsu part number search into a tighter reference path, but final fitment should always be confirmed against your engine serial number and parts book.

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