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Cummins Liner Piston 3418281 | Complete Kit for ISM11, QSM11 & M11 Engines

Ensure optimal compression and maximum power output for your Cummins diesel engine with the premium Liner Piston Assembly 3418281. This complete cylinder kit is specifically engineered for the legendary Cummins ISM11, QSM11, and M11 engine families—10.8-liter inline 6-cylinder diesel platforms widely used in heavy-duty trucks, construction equipment, marine vessels, and generator sets worldwide.

OEM Number

3418281

Cummins Genuine Engine Parts Liner Piston Assembly 3418281

The 3418281 is a complete cylinder kit manufactured to meet or exceed original equipment specifications. According to detailed parts data, this assembly includes the piston and related components for comprehensive engine rebuild applications .

SpecificationDetail
Part Number3418281
Alternate Numbers3418282, 4059903, 4025159 
Compatible EnginesISM11, QSM11, M11, M11 CELECT Plus
Bore Diameter (STD)123.40 mm 
Combustion Bowl Diameter78 mm 
Piston Ring Configuration3Tx3x4 (three rings: top, second, oil) 
Piston Pin Diameter54 mm 
Piston Pin Length102 mm 
Compression Height75.30 mm 
Total Height110 mm 
Assembly TypeComplete with piston pin and clips 
QualityOEM-grade, 100% tested, Genuine

Compatible Engine Platforms – Cummins Genuine Engine Parts

The liner piston 3418281 is compatible with the following Cummins engine models :

Engine ModelApplications
ISM11Heavy-duty trucks, commercial vehicles (over-the-road)
QSM11Generator sets, marine propulsion, industrial power
M11Trucks, buses, construction equipment
M11 CELECT PlusElectronic fuel system variants

These engine platforms are widely used in:

  • Heavy-Duty Trucks: Kenworth, Peterbilt, Freightliner with ISM engines
  • Construction Equipment: Excavators, loaders, bulldozers
  • Marine: Commercial vessels, workboats, auxiliary power
  • Power Generation: Standby and prime power generators
  • Industrial: Mining equipment, compressors, pumps

Complete Cylinder Kit Components – Cummins Genuine Engine Parts

Based on detailed parts specifications, the 3418281 liner piston assembly includes the following components :

ComponentSpecification
Piston BodyForged aluminum alloy with optimized combustion bowl geometry
Piston Rings3-ring set (top ring, second ring, oil control ring)
Piston Pin54mm diameter x 102mm length, precision-ground
Retaining ClipsHeavy-duty circlips for pin retention

Technical Features & Benefits

The Cummins 3418281 liner piston assembly is engineered with advanced features for reliable operation:

✅ Precision Bore Diameter: 123.40mm standard size ensures proper cylinder fit and optimal ring sealing 

✅ Optimized Combustion Bowl: 78mm combustion chamber design promotes efficient fuel-air mixing for complete combustion 

✅ Complete Assembly: Pre-assembled with pin and clips, saving installation time and reducing assembly errors 

✅ Forged Construction: High-strength aluminum alloy withstands extreme cylinder pressures and temperatures

✅ Heat Management: Engineered to operate reliably under continuous high-load conditions

Why Choose Premium Liner Pistons?

The piston and cylinder liner assembly is one of the most critical components in any diesel engine. A quality kit like the 3418281 ensures:

  • Engine Integrity: Prevents catastrophic failure due to piston cracking or seizure
  • Compression Maintenance: Precision bore and ring design ensures optimal cylinder sealing
  • Power Transfer: Efficiently converts combustion pressure into rotational force
  • Oil Control: Proper ring groove design maintains lubrication while preventing oil consumption
  • Extended Engine Life: Quality materials withstand millions of high-load cycles

Cross Reference & Interchange Information

The Cummins 3418281 liner piston cross-references with the following part numbers :

Cross ReferenceDescription
3418281Primary part number
3418282Alternate piston assembly number
4059903Interchangeable part number 
4025159Related piston assembly

Complete Rebuild Solutions for ISM11/QSM11/M11 Engines – Cummins Genuine Engine Parts

At Multistar Parts Co., Ltd., we offer comprehensive rebuild solutions for Cummins 10.8L engine families:

Cylinder Kits:

  • 3418281 – Complete liner piston assembly with pin and clips
  • 3800800 / 3800801 – Cylinder kit assemblies 
  • 3080760 – Cylinder liner only 
  • 3803961 – Piston ring sets 

Complete Inframe Kits:

  • Includes all 6 cylinder kits with liners, pistons, rings, and pins
  • Upper and lower gasket sets
  • Main and rod bearing sets
  • Most cost-effective option for full engine overhaul

Additional Components:

  • Connecting rods (3899450)
  • Crankshaft assemblies
  • Camshafts and followers
  • Gasket sets for complete rebuild

Why Choose Multistar Parts Co., Ltd.?

As a specialized supplier of Cummins engine parts from China, we offer:

  • ✅ Premium Quality: Genuine-grade components meeting OEM specifications
  • ✅ 100% Testing: Rigorous quality control before shipment
  • ✅ Extensive Inventory: Comprehensive stock of ISM11, QSM11, and M11 engine parts
  • ✅ Global Logistics: Worldwide shipping to minimize downtime
  • ✅ Competitive Pricing: Wholesale rates for fleets, workshops, and distributors
  • ✅ Technical Support: Expert assistance for parts identification and engine rebuild planning
  • ✅ Flexible MOQ: Single piece orders accepted for emergency repairs

Installation Tips for Liner Piston Assemblies

When replacing the 3418281 liner piston on your Cummins engine :

  1. Verify Engine Serial Number: Ensure compatibility with your specific ISM11/QSM11/M11 configuration
  2. Measure Cylinder Liner Protrusion: Check that liner stands 0.03-0.13mm above block deck 
  3. Lubricate During Assembly: Use clean engine oil on piston rings and cylinder walls
  4. Stagger Ring Gaps: Position ring gaps 120° apart, not aligned with piston pin
  5. Use Proper Tools: Utilize piston ring compressor for installation
  6. Check Piston Cooling Nozzles: Verify oil jets are clear and properly aimed at piston underside 
  7. Follow Torque Specs: Adhere to factory connecting rod bolt torque specifications

Keep Your Cummins Engine Running Strong

The Cummins ISM11, QSM11, and M11 engines are renowned for their durability, power density, and reliability—powering fleets and equipment worldwide. Using quality liner piston assembly 3418281 ensures your engine delivers optimal compression, fuel efficiency, and performance—whether on the highway, at the job site, or in continuous power generation.

Contact Multistar Parts Co., Ltd. today to order the Cummins 3418281 Liner Piston Assembly or inquire about our full range of ISM11, QSM11, and M11 engine parts and rebuild kits. Whether you need a single cylinder kit for a repair or a complete inframe overhaul kit for fleet maintenance, we deliver the quality, reliability, and support your operations demand.

Trust Multistar Parts Co., Ltd. as your dedicated partner for genuine-quality Cummins engine components.

About Multistar Parts – Truck Parts for Sale

Multistar Parts Cp.,Ltd is your reliable truck parts supplier for OEM truck parts and aftermarket truck parts solutions! We save your purchase time and give a best price!

For more information use the form below or email us: info@multistar-parts.com