PACCAR R56-1155-03P2P0000 Lock Random Key Kit

( Brand: Paccar ), ( Manufacturer Part Number: R56-1155-03P2P0000 ), ( Type: Kit-lock Cab )

Review PACCAR Peterbilt Kit lock Cab Random Key Code Oem

The **Paccar R56-1155-03P2P0000 Peterbilt Kit-Lock Random Key** is a high-quality, precision-engineered locking mechanism designed exclusively for Peterbilt Model 579, 587, and 597 series trucks, ensuring seamless integration with the brand s robust cab structures. This kit-lock system is engineered to provide superior security and reliability, featuring a durable **random key** system that eliminates the risk of unauthorized access through key duplication or tampering. Crafted from hardened steel and precision-machined components, the R56-1155-03P2P0000 is built to withstand the harshest conditions, from extreme temperatures to heavy-duty use in commercial fleets. The design incorporates a **modular pin-tumbler mechanism**, allowing for easy customization of key configurations while maintaining a high level of security. This kit-lock is specifically tailored for the **Paccar MD8 engine bay** and other critical access points, ensuring a perfect fit with minimal installation effort. Whether used for fleet security, theft prevention, or compliance with industry safety standards, this kit-lock delivers unmatched performance and peace of mind. Built to last, it aligns with Paccar s commitment to durability and innovation, making it an essential upgrade for any professional trucking operation prioritizing both security and functionality.

### Pros and Cons of Buying a PACCAR R56-1155-03P2P0000 Peterbilt Kit-Lock Random Key

1. **Reliability and Durability** The PACCAR MX-11 engine (R56) is known for its robust construction, long service intervals, and strong aftermarket support. It is designed for heavy-duty applications, making it suitable for long-haul or demanding commercial use.

2. **Fuel Efficiency** The R56 engine, particularly in its later iterations, offers improved fuel efficiency compared to older diesel engines. The 1155 horsepower rating suggests it is optimized for power while maintaining reasonable fuel consumption for its class.

3. **Low Maintenance Costs (Compared to Some Alternatives)** The PACCAR engine family is designed with fewer moving parts and advanced technologies like common rail direct injection, which can reduce maintenance needs over time. However, maintenance costs can still be significant depending on usage.

4. **Resale Value** Peterbilt trucks, especially those with well-maintained engines like the R56, tend to hold their value reasonably well in the used market. This can be beneficial if you plan to sell or trade the truck later.

5. **Customization and Kit-Lock Options** The "Kit-Lock" designation indicates that the engine is prepped for installation in a Peterbilt chassis, which simplifies the build process. This can be advantageous for buyers who want a turnkey solution rather than assembling components themselves.

6. **Availability of Parts** As a widely used engine, the R56 has a vast network of dealers, repair shops, and online suppliers for parts and accessories. This ensures easier and quicker access to replacements or upgrades.

7. **Potential for High Performance** With 1155 horsepower, this engine is well-suited for heavy-duty applications such as long-haul, construction, or specialized transport. It can handle high payloads and demanding routes with ease.

8. **Random Key** A random key (non-matching) can be an advantage if you plan to sell the truck later, as it may deter potential buyers from attempting to hot-wire or steal the vehicle. However, this also means you ll need to replace the key if you lose it.

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1. **High Initial Cost** The R56-1155-03P2P0000 engine, especially in a kit-lock form, is likely to be expensive upfront. The cost of the engine, installation, and any additional modifications (e.g., exhaust, transmission) can add up quickly.

2. **Complexity of Installation** While the Kit-Lock setup simplifies the process, installing an R56 engine still requires mechanical expertise. If you lack experience, you may need to hire a professional, which adds to the cost.

3. **Fuel Costs** Despite its efficiency, a high-horsepower engine like this will consume significant amounts of diesel fuel, especially over long distances. Fuel prices can fluctuate, impacting operating costs.

4. **Maintenance Requirements** Although the R56 is durable, it still requires regular maintenance, including oil changes, filter replacements, and periodic inspections. Neglecting maintenance can lead to costly repairs down the line.

5. **Transmission and Drivetrain Compatibility** The R56 is typically paired with a heavy-duty transmission (e.g., Allison or Eaton), which may require additional investment. Ensuring compatibility with the rest of the drivetrain (axles, differentials, etc.) is crucial.

6. **Potential for Overkill** If you re not operating a truck under heavy loads or extreme conditions, the 1155 horsepower may be more power than needed. This could lead to unnecessary wear and tear or higher operating costs without a proportional increase in efficiency.

7. **Random Key Limitations** While a random key can deter theft, it also means you ll need to budget for a replacement key if lost. Additionally, some dealerships or locksmiths may charge premium rates for custom keys.

8. **Environmental and Regulatory Considerations** Diesel engines like the R56 are subject to emissions regulations. Older models may not meet current standards, requiring aftermarket upgrades (e.g., DEF systems) to comply with laws, which can add to costs.

9. **Depreciation** Heavy-duty trucks, even well-maintained ones, depreciate over time. The R56 is no exception, and its value may decline significantly after a few years, especially if newer, more efficient engines become the standard.

10. **Operator Skill Dependency** A high-horsepower engine like this demands skilled driving to maximize efficiency and minimize wear. Poor driving habits (e.g., aggressive acceleration, improper shifting) can reduce the engine s lifespan and increase fuel consumption.

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The PACCAR R56-1155-03P2P0000 Peterbilt Kit-Lock engine is a powerful and reliable choice for heavy-duty applications, particularly for those needing high horsepower for long-haul, construction, or specialized transport. Its durability, fuel efficiency (relative to its class), and strong aftermarket support make it a compelling option for commercial fleets or individual owners with demanding needs. However, the high upfront and maintenance costs, complexity of installation, and potential for overkill in less demanding applications must be carefully considered.

If you are operating a truck under heavy loads, require maximum power, and can justify the investment in maintenance and fuel costs, this engine is a strong contender. Conversely, if you re looking for a more fuel-efficient or lower-cost option, newer or alternative engines (e.g., Cummins X15, Detroit DD15) might be worth evaluating.

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- **Buy if:** You need a high-horsepower engine for heavy-duty work, can afford the initial and ongoing costs, and prioritize reliability and durability over fuel economy. The Kit-Lock setup is ideal if you want a simplified installation process.

- **Avoid if:** You re operating under lighter loads, cannot justify the high maintenance or fuel costs, or prefer a more fuel-efficient or lower-cost engine. In such cases, consider newer or alternative engines with better emissions compliance and efficiency.

- Ensure you have access to qualified mechanics for installation and maintenance.

- Factor in the cost of a replacement key (random key) and any necessary emissions upgrades.

- Compare total cost of ownership (fuel, maintenance, depreciation) over the expected lifespan of the truck.

- If buying used, thoroughly inspect the engine and surrounding components (transmission, drivetrain, exhaust) for wear or damage.

Details:

R56-1155-03P2P0000 Peterbilt Kit-Lock Cab Random Key Code OEM. Always verify your Engine Serial Number ESN before purchasing to ensure exact fitment.

part #: r56115503p2p0000 price

• $139.95

specifications carlockiio:

• for makes: Peterbilt
• brand: Paccar
• mpn: R56-1155-03p2p0000
• type: Kit-lock Cab

offer carlockiio:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• best offers: True
• quantity: 9
• started: April 6, 2026

shipping carlockiio:

• type: Fixed
• cost: $0.00
• transit: 3-7 Days
• carrier: UPS
• service: UPS Ground
• class: Standard

returns carlockiio:

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

payments carlockiio:

• credit card: Mastercard
• other
• wallet: Apple-pay

seller carlockiio:

• rating: 100.0%
• city: Clearfield, Pennsylvania
• # reviews: 635

general carlockiio:

• condition: New
• Car Truck Parts Accessories > Exterior Parts Accessories > Exterior Locks Lock Hardware

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