Part Number
53319986719
Previous Version
5331-998-6719, 5331 998 6719, 53319886704, 53319886719
OE number
30-35703, 3035703, 3802119, 3802139, 3827195, 3837691
Description
Lugger Marine, Ship
Manufacturer Part Number
53319706704, 53319706719, 5331-970-6704, 5331-970-6719
CHRA
53317100012 (5331-710-0012)
Turbo Model
K31-3767OOAKB9.61RYCSB
Engine
TAMD74P, D7M+
Engine Manufacturer
Volvo-Penta
Capacity
7.3L, 7300 ccm
KW
350/490
RPM Max
2600
Angle α (compressor housing)
70°
Angle β (turbine housing)
90°
Bearing Housing
53331500008 (53331500014)(Oil Cooled)
Turbine Wheel
53311205004 (53311205008)(Ind. 77. mm, Exd. 86. mm, Trm 12.8, 11/12 Blades)(1100016178)
Comp. Wheel
53311232004 (53311232014, 53331232019)(Ind. 71. mm, Exd. 102. mm, Trm 7.1, 7+7 Blades, Superback)
Compressor back plate
53331515714 (53331515713)
Heat shield
53311652001
Repair Kit
53277110076 (53317110005, 53317110003)(1301031750, 209290001, 5000040026)
Turbine Housing (water-cooled)
53311007400
Actuator
58061100372 (58061100368, 58061100364)
Waste gate valve
58061100364 (58061100368)
Settings Waste gate (pressure)
2 45 bar
Settings Waste gate (lift shaft)
2.00 mm
Gasket Kit
215197
Gasket (turbine inlet)
409038-0000 (132040, 202873, 205396, 3500683, 1S4295, 9749, 210017-0000)(1900000003)
Gasket (turbine outlet)
210239
Gasket (oil outlet)
210060 (409267-0003, 409267-0002, 201048, 129120, 210018-0000, 210060-0000, 1S4810, 51914, 148062, 9738, 9988, 3519763, 3500682, 3709738, 311585)(1900000025)
NOTE
Inter cooler; replacement for K31-6704
Applications
2002-09 Volvo Penta Ship with TAMD74P, D7M+ Engine
I. Core Functions and Compatibility
The K31 turbocharger is specifically designed for Volvo marine engines, enhancing engine power and torque by compressing intake air. It is particularly suitable for demanding applications with heavy loads and harsh operating conditions. Compatible engine models include theTAMD74P, significantly boosting marine propulsion performance.
II. Key Models and Part Numbers
1. Common Models:
• 53319706704
• 53319886704
• 53319706719These part numbers correspond to different batches or configurations of the K31 turbocharger. Selection must be based on the specific engine model and year.
2. Associated Components:
• Turbine Housing(e.g., Part No.53311016512): Guides exhaust gases to drive the turbine wheel.
• Compressor Cover(e.g., Part No.53331013007): Protects the compressor impeller and optimizes air intake efficiency.
• Bearing Housing(e.g., Part No.53291500003): Oil-cooled design ensures stability during high-speed turbine operation.
• Repair Kit(e.g., Part No.53317110005): Includes gaskets, bearings, and other wear parts for easy maintenance.
III. Technical Specifications and Performance
• Turbo Model: K31
• Turbine Material: K418 alloy (heat-resistant and corrosion-resistant).
• Engine Displacement: Typically around12.8L(e.g., D2876LF4V engine).
• Power Output: Ranges from338–453 kW(460–617 horsepower), meeting heavy-duty marine requirements.
• Maximum RPM: 1,900 revolutions per minute for efficient boosting.
IV. Applications
1. Commercial Vessels:
• Used in cargo ships and ferries powered by Volvo TAMD74P engines for prolonged high-load operation.
2. Industrial Equipment:
• Some land-based diesel generators or heavy machinery (e.g., MAN truck D2866LF series) may also adopt the K31 turbocharger.
3. Aftermarket Upgrades:
• Suitable for enhancing performance of older engines, provided compatibility with the engine block is confirmed.
V. Maintenance and Precautions
1. Regular Inspections:
• Monitor turbocharger oil pressure, temperature, and unusual noises to prevent bearing damage from inadequate lubrication.
• Check intake pipe seals to avoid air leaks affecting boost efficiency.
2. Replacement Intervals:
• Turbocharger lifespan is typically80,000–100,000 km, but this varies based on operating conditions (e.g., saltwater exposure, high temperatures).
• Replace repair kit components (gaskets, bearings) simultaneously during replacement to avoid secondary damage.
3. Compatibility Verification:
• Subtle differences may exist between K31 models (e.g., turbine housing angles, compressor impeller sizes). Strictly match the part number to the engine model.
• Some older models (e.g., 53319707117) have been superseded by newer numbers (e.g., 53319887141). Note replacement relationships.
VI. Market and Pricing
• Price Range: Approximately900–900–900–1,000 USD(¥6,500–¥7,300) depending on the model and supplier.
• Supplier Selection:
• Prioritize Volvo-authorized dealers or professional automotive parts suppliers (e.g., Fengcheng Dongzeng Turbocharger Factory) for genuine or certified aftermarket parts.
• Avoid unverified used or remanufactured parts, which may suffer from unstable performance or short lifespans.
