Engine Cylinder Head And Its Related Parts

Komatsu PC1250-8 Excavator Cylinder Head (#511700-) Parts

Komatsu PC1250-8 cylinder head (#511700-) parts for machine serial 30158-UP. View this configuration's diagram, part numbers, quantities and options; shop or request a quote.

Catalog configuration: SAA6D170E-5C SN 511700-UP (For PC1250-8/PC1250LC-8/PC1250SP-8) / Engine Cylinder Head And Its Related Parts / Cylinder Head / Cylinder Head (#511700-).

PC1250-8Machine serial 30158-UP35 part occurrences

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Aftermarket parts reference illustration · Click to enlarge. Actual supplied parts may differ.

Assembly parts

Showing all 35 part occurrences

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LinePart numberDescriptionQtyOrder qtyPurchase options
0Cylinder Head AssemblySN: 511700-UP6Request quote
2Insert, Intake Valve, StandardSN: 511700-UP2View product ↗
2Insert, Intake Valve, Oversize 1.00mmSN: 511700-UP2Request quote
2Insert, Intake Valve, Oversize 0.75mmSN: 511700-UP2Request quote
2Insert, Intake Valve, Oversize 0.50mmSN: 511700-UP2Request quote
2Insert, Intake Valve, Oversize 0.25mmSN: 511700-UP2Request quote
3Insert, Exhaust Valve, StandardSN: 511700-UP2View product ↗
3Insert, Exhaust Valve, Oversize 1.00mmSN: 511700-UP2Request quote
3Insert, Exhaust Valve, Oversize 0.75mmSN: 511700-UP2Request quote
3Insert, Exhaust Valve, Oversize 0.50mmSN: 511700-UP2Request quote
3Insert, Exhaust Valve, Oversize 0.25mmSN: 511700-UP2Request quote
4Guide, ValveSN: 511700-UP4View product ↗
5Tube, Push RodSN: 511700-UP1Request quote
6O-ringSN: 511700-UP, KIT-FLAG: S1Request quote
7PlugSN: 511700-UP3View product ↗
8Plug, ExpansionSN: 511700-UP17View product ↗
9Plug, BoltSN: 511700-UP1Request quote
10PlugSN: 511700-UP1View product ↗
11Guide, CrossheadSN: 511700-UP2Request quote
12Pin, DowelSN: 511700-UP2View product ↗
13Plug, TaperSN: 511700-UP1View product ↗
14Seal, Valve StemSN: 511700-UP, KIT-FLAG: S24View product ↗
15Valve, IntakeSN: 511700-UP12View product ↗
16Valve, ExhaustSN: 511700-UP12View product ↗
17Spring, ValveSN: 511700-UP24View product ↗
18Cotter, ValveSN: 511700-UP48Request quote
19Seat,UpperSN: 511700-UP24View product ↗
20Seat,LowerSN: 511700-UP24View product ↗
21CrossheadSN: 511700-UP12Request quote
22Screw, AdjustingSN: 511700-UP12Request quote
23Nut, LockSN: 511700-UP12View product ↗
24Bolt, HeadSN: 511700-UP42Request quote
25BoltSN: 511700-UP12View product ↗
26Gasket Assembly, StandardSN: 511700-UP, KIT-FLAG: S6View product ↗
26Gasket Assembly, Oversize 0.4mmSN: 511700-UP6View product ↗

Repeated parts remain separate. Source order is retained; diagram callout mapping has not yet been verified.

Assembly notes

Head, Cylinder

Grommet, Water

Grommet, Water, Oversize 0.4mm

Grommet, Water

Grommet, Water, Oversize 0.4mm

Grommet, Water

Grommet, Water, Oversize 0.4mm

Grommet, Oil

Grommet, Oil, Oversize 0.4mm

Grommet, Oil, Standard

Grommet, Oil, Oversize 0.4mm

Catalog sitemap

Using Komatsu PC1250-8 Excavator Cylinder Head (#511700-) Parts

Use the Komatsu PC1250-8 Excavator Cylinder Head (#511700-) Parts listing to identify aftermarket replacement parts within the engine cylinder head and its related parts section. This excavator application is listed for machine serial 30158-UP; the diagram and parts table retain the selected configuration and its source notes.

The parts table contains 35 listed part occurrences, including cylinder head assembly (reference 6245-11-1100), insert, intake valve, standard (reference 6240-11-1330) and insert, intake valve, oversize 1.00mm (reference 6240-16-1330). Read any option and reference notes beside these entries before choosing a replacement; repeated references may represent separate positions in the source list.

The source engine application is SAA6D170E-5C (engine serial 511700-UP). Match that engine identification as well as the machine serial range; the general machine model is not a substitute for engine-specific applicability.

For cylinder-head and related engine parts, follow the applicability attached to the selected assembly. Gaskets, fasteners and other components must be checked by their listed references rather than assumed to interchange between engine versions.

Catalog quantities describe the illustrated assembly. Adjust the order quantity to what you need, select the relevant rows, and use Add selected to cart for verified store matches or Add selected to quote for quote items. The diagram alone does not establish current stock or part interchangeability.

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