HONDA 13300-KA4-700 Crankshaft

( Manufacturer Part Number: 13300-KA4-700 ), ( Part Type: Crankshaft )

Review HONDA Complete Crankshaft fits CR250R 1983

The **Honda 13300-KA4-700 1983 CR250R Crankshaft** is a meticulously crafted, high-performance component designed to deliver the raw power and reliability expected from Honda s legendary off-road racing heritage. This forged steel crankshaft is engineered specifically for the 1983 CR250R, a model renowned for its lightweight frame, aggressive handling, and dominant performance in motocross and enduro racing during its era. The crankshaft features a robust **four-bolt main bearing design**, ensuring exceptional strength and durability under the extreme stresses of high-revving two-stroke engines. Each journal and main bearing surface is precision-machined to tight tolerances, guaranteeing smooth operation and minimal friction, which translates to improved acceleration, throttle response, and overall engine efficiency. Constructed from **high-grade alloy steel**, this crankshaft is heat-treated to achieve optimal hardness and fatigue resistance, making it capable of withstanding the relentless demands of aggressive riding, high-speed cornering, and prolonged use without warping or failure. The **700-series designation** indicates a slightly larger diameter compared to stock components, offering enhanced rigidity and reduced vibration, which can further refine the engine s power delivery and longevity. Whether you're restoring a classic CR250R to its original racing glory or upgrading an existing build for improved performance, this crankshaft serves as a critical foundation for a more responsive and durable powerplant. Its compatibility with modern high-performance pistons, connecting rods, and bearings ensures that it can be integrated seamlessly into both period-correct and contemporary engine setups, making it a versatile choice for enthusiasts and racers alike.

### **Pros and Cons of Buying a 1983 Honda CR250R Crankshaft (Part Number: 13300-KA4-700)**

1. **Reliability and Durability** Honda s CR250R from the early 1980s is known for its robust, air-cooled single-cylinder engine, which is built to last with proper maintenance. The crankshaft itself is a key component in this design, contributing to smooth operation if in good condition.

2. **Availability of Parts** As a classic Honda model, replacement parts (including crankshafts) are still relatively accessible, though prices may vary depending on condition and source. Many aftermarket and OEM suppliers carry this part.

3. **Proven Performance** The CR250R was a competitive off-road bike in its time, and a well-maintained crankshaft ensures that the engine retains its original power and torque characteristics. This makes it a solid choice for restoration or replacement in a running bike.

4. **Compatibility with Modifications** The CR250R s simple design allows for easy upgrades, such as porting, carburetor tuning, or clutch modifications. A new or restored crankshaft ensures that these modifications won t be hindered by internal engine wear.

5. **Lower Cost Compared to Modern Alternatives** While not cheap, a genuine Honda crankshaft is often more affordable than aftermarket options that may compromise quality. It also avoids the risk of inferior materials or poor machining found in some budget parts.

6. **Ease of Installation** The CR250R s engine design is straightforward, and replacing a crankshaft is a manageable DIY project for someone with basic mechanical skills. Honda s documentation and community resources make the process easier.

7. **Long-Term Investment Potential** If you re restoring a classic CR250R, a high-quality crankshaft ensures the bike remains reliable for years. Well-maintained vintage bikes often appreciate in value, especially among enthusiasts.

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1. **Age and Wear** Even if the crankshaft is new or restored, the rest of the engine may be worn out. If the bike has high mileage or was neglected, other components (pistons, bearings, camshaft) may need replacement simultaneously, increasing costs.

2. **Potential for Counterfeit Parts** Some aftermarket or eBay listings may sell fake or remanufactured crankshafts that don t meet Honda s original specifications. Buying from a reputable dealer or Honda-approved supplier reduces this risk but may increase price.

3. **Limited Warranty or No Warranty** Unlike new OEM parts, used or aftermarket crankshafts often come with no warranty. If the part fails prematurely, you ll bear the full cost of replacement.

4. **Specialized Tools and Skills Required** Removing and installing a crankshaft requires precision tools (like a crank puller) and mechanical knowledge. Mistakes during installation can damage the engine or bearings, leading to costly repairs.

5. **Market Price Variability** Prices for this part can fluctuate based on demand, condition, and seller reputation. You may pay significantly more than the part s actual value if buying from a premium seller or auction.

6. **Compatibility Issues with Modified Engines** If the bike has been heavily modified (e.g., oversized pistons, aggressive camshafts), a stock crankshaft may not handle the increased stress, leading to premature failure.

7. **Environmental and Handling Considerations** The CR250R is a lightweight, single-cylinder bike, which means it lacks modern suspension and power delivery. While the crankshaft itself won t affect handling, the bike s age may require additional upgrades to match modern off-road demands.

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Buying a **1983 Honda CR250R crankshaft (13300-KA4-700)** is a practical choice if you re restoring or maintaining a classic bike, provided you account for the engine s overall condition and potential hidden costs. The part is reliable, well-supported, and compatible with the bike s original design. However, it s not a standalone fix you must ensure the rest of the engine (bearings, seals, camshaft) is in good shape to avoid repeated failures.

If you re restoring a CR250R, prioritize buying from a trusted source (e.g., Honda dealership, reputable aftermarket supplier, or a verified seller with return policies). For a bike with unknown history, consider a full engine rebuild rather than just replacing the crankshaft.

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- **If restoring a known-good CR250R:** Purchase a **new or remanufactured OEM crankshaft** from a Honda-approved supplier or a well-reviewed aftermarket dealer. This ensures longevity and compatibility.

- **If the bike has high mileage or unknown history:** Replace the crankshaft **alongside other critical components** (bearings, seals, camshaft) to prevent future issues. Consider a **full engine rebuild kit** if the engine shows signs of wear.

- **If buying used:** Inspect the crankshaft for cracks, wear, or damage before purchasing. A **dyno test or compression check** on the engine can confirm if the part is sufficient for your needs.

- **For budget-conscious buyers:** Look for **authentic Honda reconditioned parts** (often cheaper than new) from dealers like **Honda Power Equipment Parts** or **eBay with seller feedback**. Avoid untested or "as-is" listings without return options.

**Final Verdict:** The 13300-KA4-700 crankshaft is a sound investment for CR250R owners who prioritize reliability and authenticity, but it should be part of a broader engine maintenance plan. Always verify the bike s overall condition before committing to a crankshaft replacement.

Details:

1983 Cr250r Complete Crankshaft. Came from a non running bike. Small end of rod has no scoring. Rod bearing smooth and has no play.

Any questions please MSG us. Fly wheel side threads pretty beat up, please see pics. Condition is Used.

part #: 13300ka4700 prices

• $39.60-$124.98

specifications cranshafengin:

• for models: Cr250r
• for makes: Honda
• for years: 1983
• mpn: 13300-ka4-700
• part type: Crankshaft

payments cranshafengin:

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

shipping cranshafengin:

• transit: 3-8 Days
• service: FedEx Ground Economy
• type: Fixed
• cost: $9.95
• carrier: FedEx
• class: Economy

returns cranshafengin:

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

general cranshafengin:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Crankshafts

seller cranshafengin:

• rating: 100.0%
• # reviews: 850
• city: New Port Richey, Florida

offer cranshafengin:

• sold: 0
• started: April 8, 2026
• availability: In Stock
• quantity: 1
• options: Ship-to-home

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