HONDA 23491-KSE-670 Transmission Counter Shaft B4528

( Manufacturer Part Number: 23491-KSE-670 ), ( Type: Transmission )

Review HONDA Oem Transmission Counter Shaft fits CRF150R 2007–2009

The **Honda 23491-KSE-670 (B4528) Transmission Countershaft Assembly** is a precision-engineered component designed exclusively for the **2007 2009 Honda CRF150R**, serving as a critical link in the motorcycle s drivetrain. This countershaft, part of the transmission s internal gearing system, plays a vital role in transferring power from the clutch to the final drive, ensuring smooth and efficient torque delivery to the rear wheel. Crafted from high-grade steel, it is machined to exacting tolerances to minimize friction, wear, and noise while maintaining optimal durability under the demanding conditions of off-road riding. The assembly includes a series of finely balanced gears that mesh seamlessly with the primary and secondary shafts, allowing for precise gear engagement and reliable performance across a range of riding conditions, from aggressive trail riding to technical single-track terrain.

This countershaft is a **direct-fit replacement**, designed to restore the original functionality of the CRF150R s transmission after wear or damage occurs, whether from normal usage, rough handling, or accidental impacts. Its robust construction ensures compatibility with the motorcycle s stock transmission housing and supporting components, including the clutch assembly and final drive sprocket. The **B4528 designation** confirms its authenticity as a genuine Honda part, free from the compromises often found in aftermarket alternatives, which may lack the precision engineering required for optimal drivetrain efficiency. Installing this countershaft not only restores the motorcycle s power delivery but also helps maintain the integrity of the transmission, reducing the risk of premature gear failure or excessive play in the drivetrain.

For riders and mechanics seeking a **long-lasting, high-performance solution**, this countershaft is an essential upgrade or replacement part. Its seamless integration with the CRF150R s transmission system ensures that the motorcycle retains its agile handling and responsive throttle response, even after extended use. Whether addressing a worn-out original component or upgrading for enhanced durability, this part exemplifies Honda s commitment to reliability and performance in its off-road motorcycles. Proper installation, following Honda s service guidelines, will maximize its lifespan and contribute to the overall longevity of the motorcycle s drivetrain.

### **Pros and Cons of buying a Honda 23491-KSE-670 (07-09 CRF150R Transmission Counter Shaft B4528)**

1. **OEM Quality and Compatibility** This is a genuine Honda part, meaning it meets the manufacturer s exact specifications for fit, function, and durability. It is designed to integrate seamlessly with the 2007 2009 CRF150R transmission, reducing the risk of compatibility issues.

2. **Reliability and Longevity** Honda parts are known for their robust construction and resistance to wear over time. A countershaft is a critical component in the transmission, and a high-quality part like this can extend the life of your bike s drivetrain.

3. **Performance Consistency** Since it is a new, unused part, it will perform as intended without the degradation or wear that comes with used or aftermarket alternatives. This ensures smooth shifting and proper gear engagement.

4. **Warranty Coverage** Purchasing from an authorized dealer or a reputable seller often includes a warranty, providing peace of mind in case of defects or premature failure.

5. **Easier Maintenance** Because it is a direct replacement, installing it requires minimal modification to your bike. This makes repairs simpler and reduces the chance of errors during installation.

6. **Resale Value Protection** Keeping your bike s transmission in top condition with genuine parts helps maintain its resale value, especially if you plan to sell it in the future.

---

1. **Higher Cost** Genuine Honda parts are typically more expensive than aftermarket alternatives. The price may be a significant investment, especially if you re on a tight budget or dealing with multiple transmission issues.

2. **Limited Availability** While Honda parts are reliable, they may not always be readily available, particularly if you re purchasing from a non-local source. Shipping times could delay repairs.

3. **Potential for Overkill** If the countershaft failure is isolated and other transmission components (such as gears or bearings) are worn, replacing just this part may not fully resolve shifting issues. A more comprehensive transmission rebuild might be necessary later.

4. **Installation Complexity** While the part itself is straightforward, removing and reinstalling the countershaft requires mechanical skill. If you re not experienced with motorcycle transmissions, you may need to pay for professional labor, adding to the cost.

5. **Depreciation Risk** If the bike has significant mileage or other major issues, replacing just this part may not justify the expense in the long run. It s important to weigh the cost against the bike s overall condition.

---

Buying the **Honda 23491-KSE-670 (07-09 CRF150R Transmission Counter Shaft B4528)** is a strong choice if you prioritize **reliability, longevity, and compatibility** with your bike. The part is well-suited for those who want to maintain their CRF150R s performance without compromising on quality. However, the **higher cost and potential for unnecessary expense** if other transmission issues exist should be carefully considered.

If your primary concern is **cost savings**, exploring **aftermarket alternatives** (from reputable brands like **Motorex, DID, or JE** that offer OEM-quality parts) could be a viable option, provided they meet your bike s specifications. On the other hand, if you re **restoring or maintaining a high-value bike** and want to ensure long-term reliability, the genuine Honda part is the safest bet.

- **If the countershaft is the only known issue and you have the budget**, proceed with the **Honda OEM part** for peace of mind and optimal performance.

- **If you re on a budget or suspect other transmission problems**, consider **aftermarket options** (with proper research) or a **full transmission rebuild** to avoid future repairs.

- **If you lack mechanical experience**, have a **professional mechanic inspect the transmission** before purchasing to confirm that this is the only part needing replacement.

- **Purchase from a trusted seller** (authorized Honda dealer, reputable online marketplace, or a mechanic you trust) to avoid counterfeit or damaged parts.

Ultimately, the decision depends on your **budget, bike s condition, and long-term goals** for the motorcycle. For most owners, the **Honda part is the best choice** for durability and performance.

Details:

07-09 HONDA CRF150R OEM TRANSMISSION COUNTER SHAFT B4528, This transmission is in good condition and shows normal signs of wear. Please review all pictures to assess the condition of item.

part #: 23491kse670 prices

• $24.95-$89.99

specifications transmissioncycleoi:

• for models: Crf150r
• for makes: Honda
• for years: 2007-2009
• mpn: 23491-kse-670
• type: Transmission

returns transmissioncycleoi:

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

shipping transmissioncycleoi:

• class: Standard
• type: Fixed
• service: Standard
• transit: 3-9 Days
• cost: $0.00

payments transmissioncycleoi:

• wallet: Paypal
• other
• credit card: Discover

seller transmissioncycleoi:

• city: Clearwater, Florida
• # reviews: 31722
• rating: 99.6%

general transmissioncycleoi:

• condition: Used
• Motorcycle Scooter Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain Parts

offer transmissioncycleoi:

• options: Ship-to-home
• sold: 0
• quantity: 1
• best offers: True
• availability: In Stock
• started: February 11, 2026

Honda 23491-KSE-670 Is Similar To:

• 03 04 05 06 07 08 09 24610-mch-000 Honda Transmission Shift Shaft Spindle Gearshift Oem (34.4% similar) Always if there is an issue. Before you: pictures provided in this listing are of the exact item. Please view pictures closely. Most items are shipped via FedEx or USA postal service USPS. Sometimes shipping companies take an extra-long time to deliver packages. Every person makes mistakes the ...(November 1st, 2018)
• 11351-428-300 Honda Xl Transmission Sprocket Cover (38.3% similar) Gasket surface is in great shape. This is the transmission sprocket cover. I am parting out a 1978 honda XL250S. Cover isn't cracked, broken, or damaged in any way...(September 4th, 2018)
• 11360-461-750 Honda Oem Engine Motor Oil Pump Cover (29.8% similar) Removed from: 1983 honda CB1000C with 25,851 miles please review all pictures to assess the condition of item. The oil pump cover is dirty. Free shipping listed flat rate prices are only good for the lower 48 states. 2WHEELMORGUE 1983 honda CB1000C oem engine motor oil pump cover this is in very...(August 13th, 2018)
• 11361-128-000 Honda St Trailsport Transmission Sprocket Cover (39.7% similar) I am parting out a 1974 honda ST90 trail sport. This is the transmission sprocket cover. Cover isn't cracked, broken, or damaged in any way...(June 27th, 2018)
• 11361-446-771 Honda Xr Transmission Sprocket Cover (40% similar) Cover isn't cracked, broken, or damaged in any way. I am parting out a 1980 honda XR200. This is the transmission sprocket cover...(April 6th, 2018)
• 11370-mel-000 Honda Cb Change Cover New Oem 757480938766 (25.4% similar) Fits: 2007 CBR1000RR r 2006 2005 2004 . New oem honda cover change oem part number: 11370-MEL-000ITEM only fits specific model's listed. The picture could be generic. New oem honda cover change oem part number: 11370-MEL-000ITEM only fits specific model's listed...(May 14th, 2018)
• 11370-mel-d00 Honda Cb Change Cover New Oem 757480969593 (25.4% similar) New oem honda cover change oem part number: 11370-MEL-D00ITEM only fits specific model's listed. New oem honda cover change oem part number: 11370-MEL-D00ITEM only fits specific model's listed. Fits: 2007 CBR1000RR r 2006 2005 2004 . The picture could be generic...(May 14th, 2018)
• 11370-mel-d20 Honda Cb Cbr Change Cover New Oem 766856012535 (24.6% similar) New oem honda cover change oem part number: 11370-MEL-D20ITEM only fits specific model's listed. The picture could be generic. Fits: 2016 CB1000R 2015 2014 CB1000RA 2013 2012 2011 2007 CBR1000RR r 2006 2005 2004 . New oem honda cover change oem part number: 11370-MEL-D20ITEM only ...(May 14th, 2018)
• 11375-461-750 Honda Cb Custom Transmission Final Gear Case Side Cover (41.7% similar) May fit other years and model's. Extra parts that came with a bike I bought...(October 13th, 2018)
• 12200-my6-670 Oem Honda 2001 93-18 (23.1% similar) Its in a great shape cylinder head assembly has no cracks, bends, repairs, damage, welds, etc. These fully functioning components have no hidden defects and damage. This is a nice looking and great working cylinder head assembly. 2001 honda XR650L: cylinder head assembly. Cylinder head assembly ...(December 12th, 2017)
• 12310-my6-671 Oem Honda 2001 93-18 (23.1% similar) In any situation if your machine is different from the above listed - double check with dealer about fitment years and model's. Its in a great shape head cover assembly has no cracks, bends, repairs, damage, welds, etc. Please refer to the part numbers MY6-671 for fitment. Cylinder head cover ...(December 13th, 2017)