6LPIC Aftermarket Yanmar 6LP Aftercooler/Intercooler Gasket Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Yanmar 6LP Aftercooler / Intercooler Gasket Kit - Kit Reference: 6LPIC

A complete replacement sealing kit for the aftercooler/intercooler assembly used on Yanmar 6LP and 6LPA-series marine diesel engines. The kit renews the principal cooler-body and end-cover seals disturbed during cooler removal, cleaning or overhaul, helping restore boost-air sealing and preventing seawater, coolant or intake-air leakage around the cooler assembly.

⚙️ Key Features

• Complete four-piece aftercooler/intercooler sealing set for compatible Yanmar 6LP and 6LPA engines

• Includes 3 × O-rings - Yanmar reference 119773-18350

• Includes 1 × aftercooler gasket - Yanmar reference 119773-18121

• Suitable for scheduled cooler servicing, descaling, inspection and reassembly

• Direct-fit aftermarket replacement matched to the listed Yanmar sealing references

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 6LPIC / REC6LPIC → Replacement kit assembled around Yanmar 119773-18350 and 119773-18121

• No later Yanmar supersession has been confirmed for the two component references

OEM / Related Numbers:

• 119773-18350

• 11977318350

• 119773-18121

• 11977318121

• 6LPIC

• REC6LPIC

Aftermarket / Verified Equivalents:

• Recmar: REC6LPIC

• Repower Marine: RM6LPIC

🚤 Compatibility

Commonly used on:

• Yanmar 6LP and 6LPA mechanical marine diesel aftercooler/intercooler 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

• 6LP-WDT, 6LPWDTZY, 6LP-WST and 6LP-WSTZY

• 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 market

• Serial / Identification Range: No single universal serial cut-in applies; confirm the engine nameplate model and that the cooler assembly specifies 119773-18350 and 119773-18121

🔌 Function

Seals the aftercooler/intercooler core and cover interfaces so compressed intake air and cooling fluid remain isolated and contained. Correct sealing is essential for stable boost pressure, clean combustion and protection of the engine from coolant or seawater ingress.

Common signs replacement is required:

• Boost-air leakage or reduced engine performance

• Moisture, coolant or seawater traces around the cooler end covers

• Black smoke or slow turbo response caused by charge-air leakage

• Visible gasket deterioration during cooler service

• Recurring corrosion or staining at the cooler joints

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging