6LPOC Aftermarket Yanmar 6LP Oil Cooler Gasket Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar 6LP Oil Cooler Gasket Kit - Kit Reference: 6LPOC

Replacement oil-cooler end-cover sealing kit for Yanmar 6LP and 6LPA-series marine diesels. It is intended for oil-cooler removal, core cleaning, pressure testing or overhaul and provides the principal gaskets and O-rings required to reseal the cooler covers and prevent oil/cooling-water cross-leakage.

⚙️ Key Features

• Complete oil-cooler service sealing set for compatible Yanmar 6LP and 6LPA engines

• Includes 1 × cooler gasket - Yanmar reference 119773-33070

• Includes 1 × oil-cooler end-plate gasket - Yanmar reference 119175-33370

• Includes 2 × O-rings - Yanmar reference 119175-33350

• Suitable for oil-cooler cleaning, inspection, pressure testing and reassembly

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 6LPOC / REC6LPOC → Replacement kit assembled around Yanmar 119773-33070, 119175-33370 and 119175-33350

• 119775-33070 may appear on later 6LPA oil-cooler schematics for the corresponding four-inch gasket position; verify the cooler fitted before ordering

OEM / Related Numbers:

• 119773-33070

• 11977333070

• 119175-33370

• 11917533370

• 119175-33350

• 11917533350

• 119775-33070

• 6LPOC

• REC6LPOC

Aftermarket / Verified Equivalents:

• Recmar: REC6LPOC

🚤 Compatibility

Commonly used on:

• Yanmar 6LP and 6LPA lubricating-oil cooler assemblies

Typically suits:

• Engine models:

• 6LP-DT, 6LP-DTE, 6LP-DTZE, 6LP-DTZE1 and 6LP-DTZY

• 6LP-ST, 6LP-STE, 6LP-STZE, 6LP-STZE1, 6LP-STZY and 6LP-STZYJ

• 6LPA-DTE, 6LPA-DTP, 6LPA-DTZE, 6LPA-DTZP and 6LPA-DTZEP1

• 6LPA-STE, 6LPA-STP, 6LPA-STP2, 6LPA-STZE, 6LPA-STZP, 6LPA-STZP2 and 6LPA-STZP3

• HP Range: Approximately 250-315 HP

• Engine Type: 4.164 L inline six-cylinder, four-stroke, turbocharged and intercooled marine diesel

• Year Range: Approximately 1997 onward, depending on engine model and oil-cooler revision

• Serial / Identification Range: No single universal serial cut-in applies; match the engine model and the gasket numbers shown in the fitted oil-cooler parts diagram

🔌 Function

Seals the lubricating-oil cooler core and end covers, keeping engine oil separated from the raw-water or coolant circuit while maintaining oil pressure and heat-transfer efficiency.

Common signs replacement is required:

• Engine oil or cooling-water seepage at the cooler covers

• Oil contamination in the cooling circuit

• Water or coolant contamination in the engine oil

• Falling oil pressure associated with cooler leakage

• Flattened, brittle or corroded seals found during cooler servicing

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging