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Induction-Hardened Cummins Cylinder Liners for Heavy-Duty Applications

Wholesale Cummins Sleeves: Wet Liners & APR Kits for ISX15, N14 & KTA Series

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Quick Summary: Cummins Cylinder Liner Solutions

Replace your worn cylinder liners to address cavitation erosion and scoring. Our induction-hardened liners offer superior wear resistance in ISX15, N14, and KTA series engines. Fits equipment including Peterbilt 389, Komatsu D85, and Kenworth T800. Factory-direct wholesale availability.

Metallurgical Consistency: Restoring Compression in Cummins ISX, N14 & KTA Powerplants

Critical for maintaining compression in high-hour engines like the Cummins ISX15 and N14, the cylinder liner serves as the primary wear interface against piston ring friction. Ruich Value supplies a comprehensive inventory of precision-honed Engine Sleeves designed to withstand the extreme cylinder pressures of long-haul trucking and industrial mining. Whether you are overhauling a KTA19 genset or performing an in-frame rebuild on an 855 Big Cam, our liners offer the structural density required to minimize oil consumption and prevent cavitation erosion. Our catalog addresses the specific evolution of Cummins engineering, from standard Wet Liners for legacy engines to advanced Anti-Polishing Ring (APR) designs for modern EGR applications. By utilizing induction-hardened cast iron and a specific plateau cross-hatch honing pattern, our sleeves effectively retain oil film and resist “bore polishing,” significantly extending the service life of the power cylinder assembly.

Buyer’s Guide: Selecting the Correct Cummins Sleeve Technology

Liner Type Applicable Engine Models Technical Feature
Wet Liner (Standard) (Direct Cooling) N14, L10, M11, 855 (Big Cam), KTA19/38/50 Heavy wall thickness in direct contact with coolant. Includes O-ring grooves for sealing.
APR Liner (Anti-Polishing Ring) ISX15, QSX15 (Twin Cam & Single Cam) Features a removable scraper ring at the top to remove carbon from the piston crown, preventing bore polish.
Repair Sleeve (Dry / Press Fit) 4BT, 6BT, ISB (Parent Bore Blocks) Thin-wall sleeve used to salvage “Parent Bore” blocks that have been bored out due to wear.

Cummins Engine & Equipment Applications

Engine Series Compatible Vehicles & Machinery
Heavy Duty (ISX / N14)
  • Freightliner Cascadia, Kenworth W900
  • International ProStar
  • Volvo VNL Series
Mid-Range (6CT / 6BT)
  • Excavators (Hyundai, Komatsu PC200-8)
  • Wheel Loaders (LiuGong)
  • Marine Auxiliary Power
High Horsepower (KTA)
  • Mining Haul Trucks (Komatsu, Belaz)
  • Marine Propulsion Vessels
  • Large Diesel Generators (1MW+)

Why Source Cummins Cylinder Liners from Ruich Value?

  • Induction Hardening: Our liners undergo precise induction hardening treatment to increase the ID surface hardness, significantly reducing wear from piston ring friction.
  • Plateau Honing: We apply a specialized cross-hatch honing pattern that creates microscopic valleys to retain oil, ensuring optimal lubrication during the critical break-in period.
  • APR Compatibility: For ISX15 applications, our liners are machined to accept the Carbon Scraper Ring (APR), solving the high oil consumption issues inherent in EGR engines.
  • Geometric Precision: CNC machining guarantees perfect roundness and concentricity, preventing liner distortion and ensuring a tight seal with the O-rings and head gasket.
  • Complete Kits: We supply liners individually or as “Cylinder Kits” pre-loaded with pistons and rings, simplifying the ordering process for engine rebuilders.

Compatible Equipment Models

Our Cummins cylinder liners are compatible with heavy-duty equipment including: Peterbilt 389 trucks, Komatsu D85 dozers, Kenworth T800, Shantui SD16, and Case 580 backhoes.

Available Cummins Cylinder Liner Range

Explore our comprehensive catalog of replacement Engine Sleeves. If you require specific oversize dimensions or repair sleeves, please verify with our engineering team.
Engine ModelPrimary OEM REFCross-Reference/SubstituteApplicable Engine Series (Notes)
3B/3BT39041663802370 / 3919937 (Varies by build)B-Series: 3B, 3BT, 4B, 4BT, 6BT, 6BTA
4B/4BT39041663802370 / 3919937 (Varies by build)B-Series: 4B, 4BT, 6BT, 6BTA
6BT39041663802370 / 3919937 (Varies by build)B-Series: 6BT, 6BTA, 4B, 4BT
6CT 39480953919937 / 3944344 / 3802407C-Series: 6C, 6CT, 6CTA, ISC, QSC 8.3L
L10/M11/LTA1038037033080760 / 3034816 / 3064627L/M-Series: L10, M11, LTA10, ISM11, QSM11
NT85530550993801826 / 3042763NT-Series: NT855, N14
NH2201844003055099 / 3801826 (Related to older N/NH/NT/NTA Series)N/NH Series
K1940092204024767 / 3028122 / 3202240K-Series: K19, KT19, KTA19, QSK19
K3830221573007525 / 3096685K-Series: K38, KTA38, QSK38

Looking for more components? Explore our complete Cummins Heavy Duty Diesel Engine Parts Catalog

Technical Q&A: Cummins Cylinder Liners

What is the most common cause of Cummins liner cavitation?

Cavitation erosion occurs when tiny vacuum bubbles in the coolant collapse against the outer cylinder wall, literally pitting the metal over time. Using high-quality DCA (Diesel Coolant Additives) is the primary solution to prevent this.

When should I replace the cylinder liners instead of honing?

You must replace liners if you observe deep scoring, visible cross-hatch pattern loss, or if the liner has reached its maximum bore wear limit. Honing is only a temporary fix for minor glazing.

Why use induction-hardened liners for Cummins engines?

Induction hardening increases the surface hardness of the cylinder bore, significantly reducing piston ring wear and increasing oil retention, which directly correlates to longer engine rebuild intervals.

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