Cummins KTA 19 Engine Parts - Camshaft Section

Camshaft Components for Cummins KTA19 Engines

Diesel Pro Power offers a complete selection of camshaft components for Cummins KTA19 engines, including new camshafts, bushings, followers, pins, gaskets, and push rods—engineered for precise fitment, long service life, and maximum performance in marine and industrial applications. Whether you're performing a full top-end rebuild or replacing worn components in the valve actuation system, you’ll find everything you need in stock and ready to ship.

Camshafts for Cummins KTA19, K19, and QSK19 Engines

New Camshaft for Cummins K19, KTA19, and QSK19 Engines

Our new camshaft for the K19, KTA19, and QSK19 series engines is a precision-machined OE replacement designed to restore valve timing accuracy and maintain smooth injector operation. This camshaft suits both marine and stationary power units and is manufactured using hardened steel to resist wear under high-load conditions.

• Application: K19, KTA19, QSK19 (non-CPL-specific)
  
  

• Construction: Hardened forged steel
  
  

• Function: Controls both valve and injector timing
  
  

• Availability: In stock
  
  

• Condition: New, not remanufactured
  
  

This camshaft is ideal for standard-duty and heavy-duty industrial applications, including marine propulsion, mining equipment, oilfield power units, and large-scale generators.

Camshaft for Cummins Engines with Specific CPLs (1253, 1455, 2356, 3778 & 4150)

If your KTA19 engine uses one of the following CPL numbers—1253, 1455, 2356, 3778, or 4150—this is the camshaft you need. Manufactured to meet Cummins specifications for these CPL configurations, it ensures precise injector cam lobe profiles and valve lift timing to match the original engine build.

• Compatible CPLs: 1253, 1455, 2356, 3778, 4150
  
  

• Use Cases: Engine overhauls, camshaft failure replacement, excessive wear correction
  
  

• Fitment: Direct drop-in replacement for listed CPLs
  
  

• Build Quality: OE-grade tolerances and metallurgy
  
  

This camshaft is a common replacement in high-performance KTA19 marine engines and power generation sets where accurate cam phasing is critical to fuel efficiency and emissions control.

Camshaft Bushings & Support Components

Camshaft Bushing Set for Cummins K19 & QSK19

Each KTA19 engine requires seven camshaft bushings, one per journal, to maintain proper rotational alignment and oil pressure in the camshaft bore. Diesel Pro Power provides these high-quality bushings individually, allowing you to order only what you need or stock up for future rebuilds.

• Quantity per engine: 7
  
  

• Material: Oil-impregnated bronze
  
  

• Installation Tip: Use a camshaft alignment tool to seat the bushings accurately during installation
  
  

• Use Case: Top-end rebuilds, oil pressure loss correction, camshaft re-bushing
  
  

Bushing for Driver Support

Used across several Cummins engine platforms, this driver support bushing plays a key role in guiding camshaft-driven accessories and injector rockers. Compatible with K19, QSK19, N14, and other platforms, it provides rotational stability for precision-timed operations.

• Engine Compatibility: K19, QSK19, N14, 855, QSM
  
  

• Common Failure Symptoms: Vibration in valve train, injector timing errors
  
  

• Suggested Replacement Interval: During full top-end inspection or after camshaft replacement
  
  

Camshaft Retainers, Lock Plates & Covers

Camshaft Lock Plate

Secure your camshaft with the OEM-style camshaft lock plate designed to prevent end-play and axial movement during operation. This small but essential component ensures long-term alignment of the camshaft with the timing gear set.

• Part Role: Retains axial position of the camshaft
  
  

• Condition: New steel construction
  
  

• Common Use Case: Reinstallation after camshaft or gear train service
  
  

Camshaft Hole Cover Gasket

This gasket seals the camshaft bore access port and prevents oil leakage or contamination from external debris. It’s crucial for maintaining crankcase cleanliness and oil circuit integrity.

• Engine Compatibility: KTA19, KTA38, KTA50
  
  

• Material: Oil- and heat-resistant composite gasket
  
  

• Recommended Replacement: Every time the cam bore access cover is removed
  
  

Cam Followers, Rollers & Pins

Roller for Injector Cam Follower (K19, K38, K50)

Cam follower rollers are direct contact components riding along cam lobes. These rollers specifically serve the injector rocker arms and are precision-ground to reduce friction and wear.

• Application: Injector rocker arms
  
  

• Material: High-strength steel, precision ground
  
  

• Common Failure Symptoms: Ticking noise, injector misfires, uneven fuel delivery
  
  

Roller for Valve Cam Follower (K19, K38, K50)

Designed for the valve rocker arm followers, these rollers rotate on cam lobe contact to minimize metal-to-metal contact and heat buildup. Replacement is advised any time the camshaft is changed.

• Use Case: Valve rocker arm interface
  
  

• Surface Finish: Polished for reduced friction and increased longevity
  
  

Pins for Cam Follower Rollers

Each cam follower roller is held in place with a precision-machined roller pin, which allows free rotation of the follower under cam lobe pressure.

• Available for: Injector and valve cam follower rollers
  
  

• Material: Hardened steel for high-wear resistance
  
  

• Replacement Interval: At cam roller replacement or when wear is evident
  
  

Cam Follower Gaskets & Gear Train Sealing

Cam Follower Cover Gasket

Seal the cam follower inspection or access covers with this durable gasket, engineered to resist high temperatures and oil exposure. This gasket ensures leak-proof sealing around your cam follower cover during top-end service.

• Applications: KTA19, KTA38, KTA50
  
  

• Installation Tip: Always clean the sealing surfaces before installing a new gasket to avoid oil seepage
  
  

Gasket for Gear Train Cover

This large format gasket provides a secure seal between the gear housing and the engine block, critical for preventing oil leaks from the timing gear section that includes the cam gear.

• Function: Maintains oil seal between timing case and engine block
  
  

• Replaces during: Timing gear service, camshaft installation, front cover removal
  
  

Push Rods for Valve and Injector Operation

Push Rod for Valve Rocker – KTA19, KTA38, KTA50, QSK19

Push rods transfer motion from the camshaft to the rocker arms, ensuring precise valve actuation. Over time, rods can bend, pit, or wear—leading to misfires or poor valve timing.

• Material: Tubular hardened steel
  
  

• Surface Treatment: Heat-treated ends for improved wear resistance
  
  

• Common Replacement Signs: Valve lash irregularities, tapping sounds from valve cover
  
  

Push Rod for Injector Rocker

Specially sized for injector rocker systems, this push rod ensures the correct stroke length and timing for high-pressure injector firing in your KTA19 engine.

• Use Case: Replaces bent or worn push rods
  
  

• Compatibility: Fits injector rocker setups on all KTA19 and QSK19 variants
  
  

Why Replace the Camshaft in a Cummins KTA19?

The camshaft in the Cummins KTA19 engine is responsible for precisely timed operation of both the valve train and fuel injection system. Over time, cam lobes can become worn, pitted, or flattened, especially under high-load marine conditions or when oil maintenance is delayed. Replacing a worn camshaft restores engine timing, performance, fuel efficiency, and emissions control. If you’ve recently experienced:

• Valve lash issues
  
  

• Injector misfires
  
  

• Metallic ticking from the top-end
  
  

• Excessive soot output
  
  

• Poor idle or fuel economy
  
  

…then your camshaft, rollers, bushings, or push rods may need replacement.

Best Practices for Camshaft Installation

When installing a new camshaft in a KTA19 or QSK19 engine:

• Replace all seven camshaft bushings to ensure even support
  
  

• Inspect and replace all rollers and pins associated with cam followers
  
  

• Install new cam follower and gear train cover gaskets to prevent oil leaks
  
  

• Use assembly lube during installation to prevent dry start damage
  
  

• Verify camshaft timing and gear backlash after installation
  
  

• Reset valve and injector lash post-installation
  
  

Trusted by 40,000+ Diesel Pro Power Customers

Every component in our camshaft section is backed by Diesel Pro Power’s commitment to reliability, fitment, and fast shipping. Our catalog is engineered to support commercial marine operators, industrial diesel users, and power generation professionals who demand durable, factory-quality parts delivered on time.