1. Rocker Arms & Parts Engines Components For Sale
  2. sku: 11291700338159651
  3. CAT 103-2051

CAT 103-2051 Rocker Arm Engine Ls Shaft Roller Od C15 40 45

103-2051 Cat Rocker Arm For C15 Engine Ls 40 Mm Shaft Bore 45 Roller Od

( Brand: Cat ), ( Manufacturer Part Number: 103-2051 ), ( Type: Rocker Arm ), ( Roller Diameter: 45 Mm ), ( Shaft Bore: 40 Mm )

Review CAT Rocker Arm C15 Engine Ls 40mm Shaft Bore 45 Roller Od

The CAT 103-2051 rocker arm is a crucial component of the C15 engine, specifically designed for use in the LS 40 shaft, 45 roller configuration. This rocker arm is manufactured to meet the highest standards of quality and performance.

The rocker arm is a key part of the engine's valvetrain system, responsible for converting the linear motion of the camshaft into the reciprocating motion of the piston. It is made from high-strength steel, ensuring it can withstand the rigors of heavy-duty use.

The arm measures 4.5 inches in roller diameter and features a 40-inch shaft length. The roller diameter is critical to ensure proper clearance between the rocker arm and other components in the engine. The 40-inch shaft length is essential to allow for the correct leverage and stroke length for the rocker arm.

The CAT 103-2051 rocker arm is designed with a 1.625-inch rocker arm pivot diameter, which provides the necessary support and stability to the arm while it's in operation. The arm also features 1.5-inch diameter bearings, which ensure a smooth and efficient operation of the rocker arm.

The arm's surface is finished with a durable and hard-wearing coating that provides excellent resistance to wear and tear, ensuring a long service life. The arm's design also incorporates a grease fitting, allowing for regular greasing of the bearings to keep them in good working order.

The CAT 15-2051 rocker arm is a precision-engineered component that delivers superior performance, reliability, and durability. Its design is based on decades of engineering expertise and real-world experience, ensuring it meets the demands of even the most challenging operating conditions.

Whether you're a professional mechanic or a DIY enthusiast, the CAT 103-2051 rocker arm is an essential component of your C15 engine's valvetrain system. By investing in this high-quality rocker arm, you can ensure your engine runs smoothly and efficiently, minimizing downtime and maximizing productivity.

Buying a new Caterpillar 103-2051 rocker arm for a C15 engine with a LS 40 shaft, 45 roller outer diameter (OD) can have both advantages and disadvantages, depending on the specific circumstances. Here are some potential pros and cons:

Pros:

1. Improved Performance: A new rocker arm can help enhance the engine's performance by reducing friction and wear, resulting in smoother operation and better fuel efficiency.

2. Longer Lifespan: A new rocker arm can last longer than a worn-out or damaged one, reducing the need for frequent replacements and saving money in the long run.

3. Better Compatibility: A new rocker arm specifically designed for the C15 engine with LS 40 shaft, 45 roller OD ensures proper fitment and compatibility with other engine components.

Cons:

1. Cost: A new rocker arm can be an expensive replacement part, especially if the engine is older or if the rocker arm is not the primary cause of engine issues.

2. Installation Complexity: Installing a new rocker arm can be a complex process that requires specialized tools and knowledge. It's essential to ensure the engine is in good working order before attempting the installation.

3. Availability: Depending on the specific engine model and availability of the part, it may take some time to obtain a new rocker arm, which could result in downtime for the vehicle or equipment.

In conclusion, purchasing a new Caterpillar 103-2051 rocker arm for a C15 engine with LS 40 shaft, 45 roller OD can offer improved performance, a longer lifespan, and better compatibility. However, it comes with a higher cost, installation complexity, and potential availability issues. It's crucial to consider these factors and assess whether the benefits outweigh the costs before making a decision.

If the engine is essential for business operations or if the current rocker arm is causing significant issues, investing in a new rocker arm may be a worthwhile investment. However, if the engine is in good condition and the current rocker arm is still functioning adequately, it may be more cost-effective to keep using it or explore other solutions to address any performance concerns. Ultimately, the decision to buy a new rocker arm should be based on a thorough assessment of the specific circumstances and potential benefits and costs.

Details:

Items already in a box may be shipped its original. Often times the original packaging may have tares, scuffs, or scratches on cardboard plastic. Many of our used items may actually be new/never mounted but have been damaged. Items will only include what is included in the pictures.

Please review all provided part numbers, pictures, and to ensure you are purchasing the correct, desired item. All pictures also include measurement photos to show sizing of the item. Please follow our page to watch new listing updates and have the chance receive special offers. For any questions on what an item fits please look up the provided part numbers.

Any contents not in the pictures will come with item. New, Open Box, Remanufactured, or Used?, Items will come as pictured.

part #: 1032051 prices

  • $62.30-$131.99

specifications rockeareng:

  • brand: Cat
  • mpn: 103-2051
  • type: Rocker Arm
  • roller diameter: 45 Mm
  • shaft bore: 40 Mm

payments rockeareng:

  • wallet: Apple-pay
  • credit card: Diners-club
  • other

returns rockeareng:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

seller rockeareng:

  • city: Ogden, Utah
  • rating: 99.3%
  • # reviews: 2333

shipping rockeareng:

  • service: USPS Ground Advantage, UPS Ground, UPS 2nd Day Air, UPS Next Day Air
  • transit: 4-9 Days
  • class: Standard, Expedited, One-day
  • cost: $6.82
  • carrier: USPS, UPS
  • type: Calculated

offer rockeareng:

  • started: May 3, 2025
  • availability: In Stock
  • sold: 0
  • best offers: True
  • options: Ship-to-home
  • quantity: 1

general rockeareng:

  • condition: New
  • Engines Engine Parts > Valvetrain Components > Rocker Arms Parts
type: rocker arm, roller diameter: 45 mm, shaft bore: 40 mm,
category: auto parts > engines engine parts > valvetrain components > rocker arms parts, sku: 11291700338159651,
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5 offers $62.30–$131.99 USD
  • Used. Offer #1 priced at $62.30 + $0.00 shipping estimate = $62.30* total. Used-missing Bolt & Nut.FREE SHIPPING
  • New other (see details). Offer #2 priced at $131.99 + $0.00 shipping estimate = $131.99* total. FREE SHIPPING
  • Used. Offer #3 priced at $70.00 + $0.00 shipping estimate = $70.00* total. With a gray color, this rocker arm is a crucial component for maintaining the performance of a CAT engine. (USED).....The product is a genuine OEM CAT C15 Diesel Engine Rocker Arm with the manufacturer part number .FREE SHIPPING
  • Used. Offer #4 priced at $85.00 + $13.85 shipping estimate = $98.85* total. +$13.85 shipping
  • Used. Offer #5 priced at $71.99 + $0.00 shipping estimate = $71.99* total. Used working.FREE SHIPPING

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