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Cylinder Liner 6218-21-2210 Komatsu Engine

Cylinder Liner 6218-21-2210 Komatsu Engine

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Product Detail

Komatsu Cylinder Liner 6218-21-2210 | SA6D140E-3 Engine Sleeve for PC360 / WA500

This Cylinder Liner 6218-21-2210 is specifically engineered for Komatsu SA6D140E-3 series diesel engines. Manufactured from high-alloy cast iron, it delivers superior wear resistance, extended service life, and optimal piston ring sealing. A direct-fit replacement for excavators, wheel loaders, and bulldozers.

Specification	Details
Part Number	6218-21-2210 (Alternative: 6218212210)
Product Type	Engine Cylinder Liner / Cylinder Sleeve
Material	High-Alloy Centrifugal Cast Iron (GG25 / Equivalent)
Bore Diameter	Ø 140.0 mm (Standard OEM Tolerance)
Surface Finish	Precision Honed (Mirror-like cross-hatch pattern for oil retention)
Hardness	HRC 45 – 52 (Ensures anti-scuffing performance)
Liner Type	Dry Liner (Designed for interference fit installation)
Quality Level	100% Dimensional & Pressure Tested

Application & Fitment (Compatibility)

This cylinder liner is a direct replacement for the following Komatsu Engine Models and Heavy Equipment.

Fit For Komatsu Engines:

SA6D140E-3
SA6D140E-3B
SA6D140E-3G
SAA6D140E-3B
SAA6D140E-3G
SDA6D140E-3A-9

Fit For Komatsu Machinery (Equipment):

Excavators: PC360, PC350LL, PC390, PC390LL, PC300LL
Wheel Loaders: WA500-3H, WA380, WA430
Bulldozers (Dozers): D61EX, D61PX
Dump Trucks: HM350-1L

In the heavy machinery industry, 'related parts' typically fall into four categories: (1) Matched rotating components (Piston & Rings), (2) Complementary sealing/gasket parts (Overhaul kits), (3) Oversized alternatives (for rebored engines), and (4) Supplier cross-references.

1. Matched Engine Components (Installed with this Liner)

These parts are physically assembled inside or onto this cylinder liner and should be replaced simultaneously during an engine overhaul.

Component	Part Number (Standard)	Description
Piston	6218-21-1151	Matched aluminum alloy piston for SA6D140E-3 series.
Piston Ring Set	6218-23-1410	Complete ring set (Compression + Oil rings).
Piston Pin (Wrist Pin)	6218-21-1210	Retainer pin connecting piston to connecting rod.
Connecting Rod Bearing	6216-31-1100 (STD)	Lower-end bearing set for the crankshaft journal.

2. Complementary Gaskets & Overhaul Kits

When replacing the liner, the cylinder head gasket and lower engine seals must be replaced to guarantee a leak-free rebuild.

Component	Part Number	Description
Cylinder Head Gasket	6218-13-1310	Upper sealing gasket for SA6D140E-3 head.
Engine Overhaul Gasket Kit	6218-21-0001	Full top-end & bottom-end gasket set (includes O-rings, valve seals, and manifold gaskets).
Cylinder Body O-Ring Set	6218-21-1220	Rubber seals for the cylinder block water jacket (if applicable for wet-sleeve variants, though this is a dry liner, side-plug seals may apply).
Main Bearing Set	6216-31-1101	Crankshaft main bearing set (matching the overhaul).

3. Assembly Kits (Bundled Packages)

Suppliers often combine the cylinder liner, piston, and rings into a single 'Kit' for easier ordering. These are the common bundled kit numbers:

Kit Type	Part Number	Included Components
Piston & Liner Kit	6218-21-2210K (varies by supplier)	Liner + Piston + Pin + Clips.
Full Power Cell Kit	6218-21-1151K	Liner + Piston + Ring Set 6218-23-1410.

4. Alternate / Cross-Reference Part Numbers

These are identical or interchangeable part numbers used by Komatsu, aftermarket brands, or casting suppliers.

Type	Part Number	Note
Komatsu Hyphenless	6218212210	Same part, just without the dashes (common for warehouse lookup).
Komatsu Casting/Assembly	6218-21-2211	May indicate a later revision or slight casting batch variance—always verify size, but generally interchangeable.
Aftermarket / IPD	KMP-6218-2210	Common aftermarket branding suffix.
Aftermarket / CTP	CTP-6218-2210	Another major competitor cross-reference.
OEM Generic Casting	140E-3-2210	Used by some foundries as a short casting number.

5. Important Notes for Buyers (Installation Advice)

Standard vs. Oversize: The 6218-21-2210 is a Standard (STD) size liner with a 140.0mm bore. If your engine block is worn or scored, you may need to rebore it and use an Oversize Liner—however, Komatsu typically does not offer 'oversize liners' for this dry-sleeve model; instead, you replace the liner and ream/hone it to fit the STD piston.
Matching Grades: Komatsu pistons (6218-21-1151) often have grade marks (A, B, C) on top for weight matching. Ensure all 6 cylinders use pistons of the same grade for engine balance.
Ordering Tip: When purchasing, quote '6218-21-2210 with full set of rings 6218-23-1410' to ensure your supplier ships the exact assembly.

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Product Detail

Komatsu Cylinder Liner 6218-21-2210 | SA6D140E-3 Engine Sleeve for PC360 / WA500

Specification	Details
Part Number	6218-21-2210 (Alternative: 6218212210)
Product Type	Engine Cylinder Liner / Cylinder Sleeve
Material	High-Alloy Centrifugal Cast Iron (GG25 / Equivalent)
Bore Diameter	Ø 140.0 mm (Standard OEM Tolerance)
Surface Finish	Precision Honed (Mirror-like cross-hatch pattern for oil retention)
Hardness	HRC 45 – 52 (Ensures anti-scuffing performance)
Liner Type	Dry Liner (Designed for interference fit installation)
Quality Level	100% Dimensional & Pressure Tested

Application & Fitment (Compatibility)

This cylinder liner is a direct replacement for the following Komatsu Engine Models and Heavy Equipment.

Fit For Komatsu Engines:

SA6D140E-3
SA6D140E-3B
SA6D140E-3G
SAA6D140E-3B
SAA6D140E-3G
SDA6D140E-3A-9

Fit For Komatsu Machinery (Equipment):

Excavators: PC360, PC350LL, PC390, PC390LL, PC300LL
Wheel Loaders: WA500-3H, WA380, WA430
Bulldozers (Dozers): D61EX, D61PX
Dump Trucks: HM350-1L

1. Matched Engine Components (Installed with this Liner)

These parts are physically assembled inside or onto this cylinder liner and should be replaced simultaneously during an engine overhaul.

Component	Part Number (Standard)	Description
Piston	6218-21-1151	Matched aluminum alloy piston for SA6D140E-3 series.
Piston Ring Set	6218-23-1410	Complete ring set (Compression + Oil rings).
Piston Pin (Wrist Pin)	6218-21-1210	Retainer pin connecting piston to connecting rod.
Connecting Rod Bearing	6216-31-1100 (STD)	Lower-end bearing set for the crankshaft journal.

2. Complementary Gaskets & Overhaul Kits

When replacing the liner, the cylinder head gasket and lower engine seals must be replaced to guarantee a leak-free rebuild.

Component	Part Number	Description
Cylinder Head Gasket	6218-13-1310	Upper sealing gasket for SA6D140E-3 head.
Engine Overhaul Gasket Kit	6218-21-0001	Full top-end & bottom-end gasket set (includes O-rings, valve seals, and manifold gaskets).
Cylinder Body O-Ring Set	6218-21-1220	Rubber seals for the cylinder block water jacket (if applicable for wet-sleeve variants, though this is a dry liner, side-plug seals may apply).
Main Bearing Set	6216-31-1101	Crankshaft main bearing set (matching the overhaul).

3. Assembly Kits (Bundled Packages)

Suppliers often combine the cylinder liner, piston, and rings into a single 'Kit' for easier ordering. These are the common bundled kit numbers:

Kit Type	Part Number	Included Components
Piston & Liner Kit	6218-21-2210K (varies by supplier)	Liner + Piston + Pin + Clips.
Full Power Cell Kit	6218-21-1151K	Liner + Piston + Ring Set 6218-23-1410.

4. Alternate / Cross-Reference Part Numbers

These are identical or interchangeable part numbers used by Komatsu, aftermarket brands, or casting suppliers.

Type	Part Number	Note
Komatsu Hyphenless	6218212210	Same part, just without the dashes (common for warehouse lookup).
Komatsu Casting/Assembly	6218-21-2211	May indicate a later revision or slight casting batch variance—always verify size, but generally interchangeable.
Aftermarket / IPD	KMP-6218-2210	Common aftermarket branding suffix.
Aftermarket / CTP	CTP-6218-2210	Another major competitor cross-reference.
OEM Generic Casting	140E-3-2210	Used by some foundries as a short casting number.

5. Important Notes for Buyers (Installation Advice)

Standard vs. Oversize: The 6218-21-2210 is a Standard (STD) size liner with a 140.0mm bore. If your engine block is worn or scored, you may need to rebore it and use an Oversize Liner—however, Komatsu typically does not offer 'oversize liners' for this dry-sleeve model; instead, you replace the liner and ream/hone it to fit the STD piston.
Matching Grades: Komatsu pistons (6218-21-1151) often have grade marks (A, B, C) on top for weight matching. Ensure all 6 cylinders use pistons of the same grade for engine balance.
Ordering Tip: When purchasing, quote '6218-21-2210 with full set of rings 6218-23-1410' to ensure your supplier ships the exact assembly.

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Product Category

Cylinder Liner 6218-21-2210 Komatsu Engine

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Application & Fitment (Compatibility)

1. Matched Engine Components (Installed with this Liner)

2. Complementary Gaskets & Overhaul Kits

3. Assembly Kits (Bundled Packages)

4. Alternate / Cross-Reference Part Numbers

5. Important Notes for Buyers (Installation Advice)

Application & Fitment (Compatibility)

1. Matched Engine Components (Installed with this Liner)

2. Complementary Gaskets & Overhaul Kits

3. Assembly Kits (Bundled Packages)

4. Alternate / Cross-Reference Part Numbers

5. Important Notes for Buyers (Installation Advice)

分享至微信

分享至微信