1. Product Introduction

This curated parts collection includesnew genuine equivalents, refurbished OEM-grade, and standard-size replacement components for high-output prime mover engines used in marine propulsion, stationary power generation, and industrial drive applications. Spanning 20+ global engine brands and 100+ specific models, the lineup features complete engine assemblies, major overhaul parts, and wearable components designed for direct bolt-on installation without machining or modification.

2. Key Functional Attributes

• Combustion System Parts: Cylinder heads, pistons, liners, and fuel pumps engineered for precise fuel atomization and compression ratios, supporting rated power output (7680kW Wärtsilä W16V32, 15340kVA MAN B&W 12V48/60) and stable combustion under variable loads.
• Rotating Assembly Components: Standard-size crankshafts, conrods, and bearing sets balanced to G2.5 grade, reducing vibration and extending bearing life by 30% while maintaining shaft alignment tolerances.
• Engine Structural Parts: Engine blocks, bedplates, and cylinder blocks with precise machining tolerances, ensuring perfect fit for crankshafts and camshafts to prevent oil leakage and mechanical noise.
• Complete Engine Assemblies: Pre-inspected, tested new/used complete engines (Wärtsilä 6M20, MAK 8M332AK, Caterpillar 3512) with documented running hours, ready for drop-in replacement to minimize downtime.

3. Structural & Quality Features

• Precision Machining: All critical components undergo CNC 5-axis machining and coordinate measuring machine (CMM) inspection, guaranteeing dimensional consistency with OEM part numbers.
• Durability Enhancement: Crankshafts and conrods undergo induction hardening and stress relieving to resist fatigue failure under high cyclic loads (up to 720-1800 RPM operating speeds).
• Leak-Proof Sealing: Gaskets and sealing sets made from high-temperature, oil-resistant materials, rated for operating temperatures -20℃ to 180℃ to prevent fluid leakage in harsh environments.
• Interchangeability: Full cross-referencing with OEM part numbers, enabling direct replacement of worn components without rework or adaptation.
• Classification Compliance: Marine-grade parts meet ABS, DNV, and Tier 3 emissions requirements, suitable for seagoing vessels and offshore installations.

4. Applicable Operating Conditions

These engine parts are validated for use in the most demanding industrial and marine scenarios, with full performance across these operating parameters:

• Marine Applications: Seagoing vessels, offshore rigs, tugboats, and marine generator sets (saltwater corrosion resistance, continuous vibration tolerance)
• Stationary Power Generation: Grid backup power plants, prime power generators (50Hz/60Hz, 1000-1800 RPM, 720-15340 kVA output)
• Industrial Drive Systems: Heavy machinery, pump drives, and compressor units (continuous heavy-load operation)
• Environmental Range: Ambient temperatures -30℃ to 55℃, high-humidity marine environments, and dusty industrial sites
• Service Modes: Continuous duty, intermittent load, emergency standby, and periodic overhaul cycles

5. Preventive Maintenance & Service Recommendations

To maximize component lifespan, maintain engine reliability, and avoid costly breakdowns, follow these industry-proven maintenance guidelines tailored to heavy-duty industrial/marine engines:

• Visual Inspection: Conduct weekly checks for oil leaks, abnormal vibration, and component wear; inspect cylinder heads, fuel pumps, and sealing parts monthly for damage or degradation.
• Wear Component Replacement: Replace pistons, liners, and bearings every 12,000 operational hours; swap crankshaft seals and gaskets every 8,000 hours to prevent leakage.
• Alignment & Balancing: Verify crankshaft and conrod alignment every 6,000 hours; rebalance rotating assemblies if vibration exceeds 5mm/s RMS.
• Lubrication Protocol: Use OEM-approved high-performance engine oil, change oil and filters every 500 hours, and inspect oil quality for metal particulate contamination quarterly.
• Load Testing: Perform full-load testing on complete engine assemblies post-installation, and test fuel system pressure every 3,000 hours to ensure optimal performance.

We supply the following spare parts:

WARTSILA Engine Parts List

• WARTSILA W16V32 7680 kw 720 rpm 9100 kva 60 hz Total 6 pcs Total 54 mw
• MAN B&W 12V48/60 GENSETS 3 PCS Each 15340 kva 50 hz 11000 volt Total 46 mw
• 4 PCS WARTSILA 18V200 DIESEL ENGINES 3150 kw @ 1200 RPM
• WARTSILA 12V200 COMPLETE ENGINES 2100 kw @ 1200 rpm 5 pcs
• Caterpillar 3616 Complete Engines 2 pcs 5060 kw 6786 hp @ 900 rpm
• Caterpillar 3516 Genets 2 pcs – 2400 kva 60 hz – 2006 Year of build
• Caterpillar 3512 Main Engines 2 pcs 1118 kw
• Caterpillar C32 Genset 2009 build 60 hz 1330 kw 1800 rpm 8717 run hours
• Caterpillar 3512C Genset 2014 build 60 hz 1628 kw 1800 rpm – 326 run hours
• MAK 9M43 STD Size Crankshaft – Cyl Block – Conrod – Camshaft – Fuel Pump
• MAK 6M551AK Crankshaft
• MAK 32C NEW CYL HEADS
• MAK 8M25 USED ENGINE BLOCK
• MAK 8M25 NEW CRANKSHAFT
• MAK 8M20 NEW CRANKSHAFT
• MAK M25 NEW LINER WITH APR
• MAK 9M32 STD Size Crankshaft
• MAK 6M25C NEW ENGINE 1980 KW @ 750 RPM with all Electronic Equipments and tools
• MAK 6M552C std Crankshaft, Cyl Head, Piston, Conrod, Fuel Pump
• MAK 32C Piston – Liner – Conrod – Fuel Pump etc..
• MAK 6M453C Engine Block, Bedplate, Crankshaft, Turbocharger, Fuel Pump, Piston, Conrod etc.
• MAK 8M332AK Complete Engine 2 pcs 1290 kw @ 720 rpm
• MAK 8M32 STD Size Crankshaft – Cyl Block
• MAK 8M35 Complete Engine 4011 kw @ 750 rpm
• MAK 8M35 Crankshaft, Cyl Block, Piston, Liner, Conrod, Cyl Head, Fuel Pump and etc.
• MAK 6M32 Crankshaft
• MAK 8M20 Cyl Block
• MAK 6M20 Complete Engine 2 pcs 1020 kw 1000 rpm 2004 year of build
• MAK 6M20 Complete Engines 2 pcs 2012 build together with gear boxes
• MAK 6M20 STD Used Crankshaft and Cyl Block
• MAK M20 Cyl Head – Piston – Liner – Conrod
• MAK 6M281, 6M282, 6M331AK Crankshafts
• MAK 6M452AK Complete Engine
• MAK 8M452AK Complete Engine
• MAK 453C Piston, Liner, Conrod, Cyl Heads, Fuel Pump, Oil Pump, Water Pump
• MAK 8M453C Crankshaft, Block, Bedplate
• MAK 9M453C Crankshaft, Block, Bedplate
• MAK 8M453AK and 9M453AK Crankshaft and Bedplates
• MAK 6M453AK Complete Engine 1 pcs – STD Size Crankshaft – Cyl Head – Piston – Conrod
• MAK 552C Cyl Head – Piston – Conrod – Fuel Pump
• MAK 6M552C Crankshaft STD Size
• MAK 551&552 Split Type of Pistons and Cyl Liners
• MAK 8M332AK STD Size Crankshaft – Cyl Heads – Piston – Liner – Conrod – etc..
• MAK 6M453AK – 8M453AK Complete Engines
• MAK 6M551AK Bedplate
• WARTSILA L32 – L26 – L20 CYL HEADS
• WARTSILA 6L20 MARINE GENSETS 50 HZ 1140 KW – 1425 KVA – 1000 RPM – 2011 YEAR OF BUILD – 3 SET
• WARTSILA L20 NEW LINER, APR AND PISTON
• WARTSILA 9R32LN CRANKSHAFT STD SIZE 2 PCS
• WARTSILA 9L20 Genset 1943 kVA 1620 kW @ 1000 rpm 50 HZ – 2002 Year of Build
• WARTSILA 9R32LN GENSET 3645 KW @720 RPM 4405 KVA 60 HZ
• WARTSILA WICHMANN 9AXAG and AXA Piston, Liner, Conrod, Fuel Pump, Blower, Crankshaft, Bedplate, Cyl Head and etc.
• WARTSILA WICHMANN 28B Cyl Head, Piston, Liner, Conrod, Fuel Pump and etc.
• WARTSILA W32 Used Conrods
• WARTSILA 8L32 Engine Block
• WARTSILA 6R32E GENSETS 2220 KW 720 RPM 2637 KVA 60 HZ
• WARTSILA 46 CYL HEAD
• WARTSILA 12V32LN Propulsion Engines 2 pcs – 4500 KW 750 RPM 2005 Build with Gear Boxes
• WARTSILA 6R22/26 Complete Engine – 975 kw @ 900 rpm
• WARTSILA 8R22HF-C Complete Engine with gear box 975 kw 900 rpm
• WARTSILA 6R22MD-D COMPLETE ENGINE 975 KW 1000 RPM
• WARTSILA 8L20 STD Size Crankshafts, Cyl Heads, Piston, Liner, Conrods
• WARTSILA 9L20 Engine Block, Crankshaft, Turbo, Cyl Head, Piston, Liner, Conrod etc.
• WARTSILA 8L26 STD Size Crankshaft, Cyl Block, Cyl Head, Piston, Liner, Conrod, Fuel Pump etc
• WARTSILA VASA 32 and 32LN CYL HEAD – PISTON – LINER – CONROD
• WARTSILA 6L20 Complete Engines 1020 kw @ 900 rpm
• WARTSILA 6L20 STD CRANKSHAFT AND ENGINE BLOCK
• WARTSILA VASA 6R32D Complete Engine 2250 kw @ 750 rpm
• WARTSILA VASA 32 CYL HEAD, PISTON, CONROD
• WARTSILA 6R22 – 6R22/26 – 8R22/26 CRANKSHAFTS AND SPARES
• WARTSILA 4R32 – 6R32 – 8R32 – 12V32 – 16V32 – 18V32 STD SIZE CRANKSHAFTS
• WARTSILA 32LN CYL HEAD, PISTON, LINER, CONROD
• WARTSILA NOHAB 16V25 STD SIZE CRANKSHAFT
• WARTSILA NOHAB F10 – F20 – F30 – WN25 CYL Heads, Piston, Conrods
• WARTSILA 6R46 STD SIZE CRANKSHAFT
• WARTSILA 12V32LN GENSETS 4800 kw @ 720 rpm 6700 kva 60 hz 5 pcs
• WARTSILA VASA 12V32LN – 16V32LN – 18V32LN STD SIZE CRANKSHAFT
• WARTSILA NOHAB F316 STD SIZE CRANKSHAFT
• WARTSILA SACM UD30 NEW CONROD BEARINGS 50 SET STD SIZE
• WARTSILA 824 COMPLETE ENGINE AND STD SIZE CRANKSHAFT WITH MAJOR PARTS
• WARTSILA 524 COMPLETE ENGINES AND MAJOR SPARE PARTS
• SULZER 6ZAL40S COMPLETE ENGINE and CRANKSHAFT with spare parts
• SULZER 8ZAL40S STD CRANKSHAFT, PISTON, LINER, CONROD, CYL HEADS
• SULZER 16ZV40/48 STD SIZE CRANKSHAFT
• SULZER 6ATL25R GENSETS 1200 KW 1000 RPM
• SULZER 6AL20R GENSETS 2 PCS 725 KvA 50 HZ 1994 YEAR OF BUILD
• SULZER 12ZV 40/48 CRANKSHAFT STD SIZE
• DOOSAN MAN 9L21/31 GENSET 1980 KVA 900 RPM 2351 KVA 60 HZ

STX MAN 7L27/28 NEW MARINE GENSETS 4 PCS EACH 2450 KW 720 RPM 2875 KVA 60 HZ with ABS-A1, TIER 3 CERTIFICATE

• MAN 12V28/32 COMPLETE ENGINES 2640 KW 3600 HP 775 RPM
• MAN B&W 9L32/40 COMPLETE ENGINE 5790 HP 720 rpm
• MAN 40/54 CYL HEAD, PISTON, LINER, CONROD, FUEL PUMP AND MANY OTHER PARTS
• MAN 6L40/54 AND 9L40/54 CRANKSHAFT AND ENGINE BLOCK
• MAN 9L48/60B CRANKSHAFT and CONROD
• MAN 48/60A Cyl Head, Piston, Liner, Conrod, Fuel Pump
• MAN 5L23/30H – 6L23/30A STD Size Crankshafts and Cyl Heads
• MAN 5L28/32H – 6L28/32H – 8L28/32 – 9L28/32H STD Size Crankshafts – Cyl Heads and Pistons
• MAN 6L27/38 – 7L27/38 – 8L27/38 STD Size Crankshaft – Cyl Head – Conrod – PISTON
• MAN 6L40/54 – MAN 8L40/54 Crankshafts, Cyl Head, Piston, Liner, Conrod, Fuel Pump etc.
• MAN 58/64 Cyl Heads, Piston, Liner, Conrod
• MAN 32/40 Cyl Head, Piston, Liner, Conrod and New Spare Parts
• MAN 32/40CD Version Cyl Head, Piston, Liner, Conrod, Fuel Pump, Jacket etc..
• MAN 6T23LU-2 COMPLETE ENGINE
• SKL 8VDS29/24AL2 NEW CRANKSHAFT – Piston – Liner – Conrod – Fuel Pump – Oil Pump – Water Pump
• SKL 8NVD48A-2U COMPLETE ENGINE 970 KW 1320 HP 428 RPM
• DAIHATSU 6DK28 STD Size Crankshaft
• DAIHATSU 8DK28 STD SIZE CRANKSHAFT AND OTHER PARTS
• DAIHATSU 6DL20 – 6DL22 – 6DK20 STD Size Crankshafts
• DAIHATSU 8DK28 Complete Engines 3 pcs 3300 ps @ 720 rpm
• DAIHATSU 6DK20 GENSET 960 KW 900 RPM -1225 KVA 60 HZ
• YANMAR 8N280 – M200 – M220 – S185 STD SIZE Crankshafts
• YANMAR 6N280 GENSETS 3 PCS 1875 KVA 60 HZ -1680 KW
• YANMAR N280 CYL HEADS
• YANMAR T240 STD SIZE CRANKSHAFT
• YANMAR T260 CYL HEADS
• CUMMINS QSK60-G4 COMPLETE ENGINE 1915 KW @ 1500 RPM 3 PCS
• HYUNDAI HIMSEN 6H17/28 GENSET 720 KW 1000 RPM 837 KVA 50 HZ
• BERGEN BRM8 COMPLETE ENGINES
• BERGEN BRM8 CRANKSHAFT, ENGINE BLOCK, CYL HEAD, PISTON, LINER, CONROD, FUEL PUMP and etc..
• BERGEN BVM12 CRANKSHAFT, ENGINE BLOCK, CYL HEAD, CONROD, PISTON, LINER ETC..
• Rolls Royce Bergen B32:40L6 Complete Engine 3000 kw 750 rpm 2002 year of build 3 pcs
• Rolls Royce Bergen B32:40 Cyl Head, Piston, Liner, Conrod, Crankshaft and Engine Block for 6 cyl
• Rolls Royce Bergen B32:40L8 Complete Engine and Spares 3 pcs
• Rolls Royce Bergen B32:40V12 Complete Engine and Spares 3 pcs
• ROLLS ROYCE BERGEN B32:40L6 – B32:40L8 AND B32:40V12 STD SIZE CRANKSHAFTS
• BERGEN BVM-12 COMPLETE ENGINE 1 PCS 5300 KW 7200 HP 750 RPM
• BERGEN BRG-6 COMPLETE ENGINES 2 PCS 2330 KW 3170 HP 720 RPM
• BERGEN KRG6 STD SIZE CRANKSHAFT
• BERGEN KRMB-9 Complete Engine 2725 hp 825 rpm 2005 kw
• MITSUBISHI S6U2-PTK COMPLETE ENGINE 1688 HP 1000 RPM 2012 BUILD
• VOLVO PENTA TAD 163 GENSET 590 KVA 50 HZ
• VOLVO PENTA D12D-A NEW MARINE GENSETS 438 KVA 60 HZ – 2 pcs
• STORK TM410 Cyl Head, Piston, Liner, Conrod, Fuel Pump, 9TM410 Crankshaft and etc..
• STORK 6SW280 GENSET 1992 BUILD 1200 KW @ 1000 RPM 1500 KVA 50 HZ
• STORK WARTSILA 6FHD240 Crankshaft, Bedplate, Cyl Head, Piston Liner, Conrod and etc.
• PIELSTICK PA280 – PA185 Complete Cyl Heads
• PIELSTICK PC2.5 and PC2.6 Cyl Head – Piston – Liner – Conrod AND ETC
• DEUTZ MWM TBD510 Complete Cyl Head – Piston – Conrod – Fuel Pump
• DEUTZ TBD 620V12 Complete Engines 2 pcs1426 kw @ 1650 rpm together with gear box
• DEUTZ 6M540 Complete Engine
• DEUTZ 12M528 – 8M528, 6M528 COMPLETE ENGINES
• DEUTZ 9M628 Crankshaft, Engine Block, Cyl Head, Piston, Liner, Conrod, Fuel Pump etc.
• DEUTZ 6M628 COMPLETE ENGINE 1110 KW @ 1000 RPM
• DEUTZ 16M628 COMPLETE ENGINE 3600 KW @ 1000 RPM
• DEUTZ 6M628 CRANKSHAFT AND CYLINDER BLOCK
• DEUTZ 628 NEW CYL HEADS 50 PCS
• DEUTZ 16M540 COMPLETE ENGINE
• DEUTZ TBD 620V8 GENSET 820 KW 1025 Kva 60 hz
• RUSTON 12RK3CM COMPLETE ENGINE
• RUSTON 12RK3CM – RKCM CYL HEAD, PISTON, LINER, CONROD, CYL BLOCK, CRANKSHAFT, TURBO, FUEL PUMP AND ETC.
• MTU 16V595 COMPLETE ENGINES 2 PCS 3565 KW @ 1800 RPM
• Mirrless Blackstone KV12 MK3 STD SIZE CRANKSHAFT

6. Field Failure Repair Cases (Real-World Scenarios)

Case 1: Wärtsilä 12V32LN Crankshaft Fatigue Failure

Issue: A stationary power plant’s Wärtsilä 12V32LN genset experienced sudden shaft vibration and power loss, with metal particles detected in engine oil.

Root Cause: Standard-size crankshaft journal fatigue cracking due to prolonged heavy-load operation.

Resolution: Replaced the damaged crankshaft with an OEM-standard STD size crankshaft from this parts list, realigned rotating components, and replaced main bearings. The engine resumed full 4500kW power output within 48 hours, with vibration levels restored to normal.

Case 2: MAN B&W 9L32/40 Cylinder Head Leakage

Issue: A marine propulsion engine’s MAN B&W 9L32/40 developed compression loss and coolant leakage, causing unstable RPM and reduced power.

Root Cause: Cracked cylinder head sealing surface and worn valve seats.

Resolution: Installed a brand-new OEM-spec cylinder head and matching gasket set, pressure-tested the combustion chamber, and adjusted valve clearances. Compression ratios returned to factory specs, eliminating leakage and restoring full engine performance.

Case 3: Caterpillar 3516 Genset Piston & Liner Wear

Issue: A 2006 Caterpillar 3516 genset exhibited high oil consumption and reduced power output (below 2400kVA rated capacity).

Root Cause: Excessive piston ring wear and cylinder liner scuffing from contaminated lubrication oil.

Resolution: Replaced pistons, liners, and piston rings with matched components from this inventory, flushed the lubrication system, and installed new oil filters. Oil consumption dropped to normal levels, and the genset regained full rated power output.

7. Frequently Asked Questions (FAQ)

Question	Answer
Are these parts direct replacements for Wärtsilä 16V32 and MAN 48/60 engines?	Yes, all components are machined to OEM dimensional standards and material specifications, ensuring 100% direct fit for Wärtsilä V32 series, MAN B&W 48/60 series, and other listed models without modification.
Do you offer both new and used complete engine assemblies?	We supply new OEM-grade engines, certified used complete engines (with verified running hours), and standalone major spares (crankshafts, cylinder blocks) to suit different budget and timeline needs.
Are marine engine parts compliant with IMO Tier 3 and ABS standards?	All marine-specific parts meet IMO Tier 3 emissions requirements and ABS-A1 classification standards, making them suitable for commercial seagoing vessels and offshore marine installations.

8. Procurement Guidance & Call to Action

For operators and maintenance teams relying on Wärtsilä, MAN, Caterpillar, MAK, Bergen and other heavy-duty industrial/marine engines, securing high-quality, compatible spare parts is critical to preserving asset uptime, avoiding costly downtime, and maintaining regulatory compliance. This parts list serves as a definitive procurement specification and technical reference, streamlining your sourcing process for overhaul kits, emergency spares, and inventory stock.

Whether you need a standard-size crankshaft for a MAK 9M43 engine, cylinder heads for a Wärtsilä L32 unit, a complete Caterpillar 3512 engine, or fuel pumps for a MAN B&W 32/40 platform, every component in this catalog is engineered for reliability, durability, and perfect fit. Use the detailed model numbers and part descriptions to submit your procurement request, and leverage the technical specifications included to resolve on-site maintenance and troubleshooting challenges. Our inventory is curated to support urgent repair needs and scheduled overhauls, with consistent quality and OEM-grade performance to keep your critical power assets operating at peak efficiency.