3802829/3536621H Aftermarket Cummins Marine 6BTA/QSB Turbo Gasket Kit 330/370 Diamond Holset | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Cummins Marine 6BTA 5.9 Holset HX40/HX40M Turbo Installation Gasket Kit - Kit Reference: DGK0121

Comprehensive turbocharger installation sealing kit for the water-cooled Holset HX40/HX40M turbocharger used on Cummins 6BTA/6BTAM 5.9 L high-output marine engines, including the 330 and 370 Diamond ratings associated with Cummins turbo assembly 3802829 and Holset 3536621H. The kit provides a selection of oil and exhaust sealing pieces needed during turbocharger removal, replacement or overhaul.

⚙️ Key Features

• Includes 1 × oil-inlet O-ring seal - supplied under kit DGK0121; not separately numbered by the kit manufacturer

• Includes 4 × oil-drain gasket variants - supplied under kit DGK0121; individual selection depends on installation

• Includes 1 × exhaust-mount gasket, 2 × exhaust-outlet gaskets and 4 × sealing washers - supplied under kit DGK0121

• Turbo-specific service gasket references include oil inlet 210023, oil outlet 210021, turbine inlet 210849 and turbine outlet 210850

• Suitable for turbocharger replacement, exhaust-side service and oil-feed/oil-drain resealing

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 3802829 → Cummins complete turbocharger reference corresponding with Holset 3536621H

• 3536621H → Related Holset references 3536621 and 3536620

• DGK0121 / 3536621GSK → Installation-gasket kit references for the listed turbocharger family

OEM / Related Numbers:

• 3802829

• 380282900

• 3802829NX

• 3802829RX

• 3536621H

• 3536621

• 3536620

• DGK0121

• 3536621GSK

• 210023

• 210021

• 210849

• 210850

Aftermarket / Verified Equivalents:

• Denco: DGK0121

• Aftermarket installation-gasket reference: 3536621GSK

🚤 Compatibility

Commonly used on:

• Cummins Marine 6BTA/6BTAM 5.9 L high-output installations using Holset HX40/HX40M 3536621H / Cummins 3802829

Typically suits:

• Engine models:

• 6BTA/6BTAM 5.9 M3 and related 330 HP marine ratings using turbo 3802829/3536621H

• 6BTA/6BTAM 5.9 370 Diamond marine ratings using turbo 3802829/3536621H

• Common 355 HP 6BTAM calibration fitted with the same Holset turbo assembly

• QSB 5.9 installations only where the engine-specific turbo number cross-references directly to 3802829 or 3536621H

• HP Range: Approximately 330-370 HP

• Engine Type: 5.9 L inline six-cylinder, turbocharged and aftercooled marine diesel

• Year Range: Turbocharger applications commonly found approximately 1995-2006

• Serial / Identification Range: Cummins CPL and engine serial must be checked; fitment is controlled by the installed turbocharger identification plate showing 3802829, 3536621H, 3536621 or 3536620

🔌 Function

Seals the turbocharger oil-feed, oil-drain, turbine-inlet and exhaust-outlet connections. Correct installation seals prevent oil loss, exhaust leakage, boost loss and contamination around the turbocharger.

Common signs replacement is required:

• Oil seepage at the turbo oil-feed or drain connections

• Soot tracks or exhaust leakage at the turbine flange

• Exhaust smell or noise in the engine compartment

• Boost loss caused by a leaking exhaust joint

• Damaged or compressed gaskets following turbocharger removal

📦 Condition

• Brand-new aftermarket replacement part

• Supplied as a new replacement component

• Supplied in suitable retail or equivalent packaging