HONDA 23471-052-000 Nos Shaft Top Gear 24T ATC90

( Manufacturer Part Number: 23471-052-000 ), ( Part Type: Shaft Gear )

Review HONDA Nos Main Shaft Top Gear 24t fits ATC110 CT90 CL90 S90 SL90

The **Honda 23471-052-000 NOS Shaft Top Gear (24T)** is a precision-engineered, direct-replacement transmission component designed exclusively for Honda s **ATC110, ATC90, CT90, CL90, S90, and SL90** scooters, ensuring seamless performance and reliability for riders seeking optimal power transfer and longevity. This **New Old Stock (NOS) shaft top gear** is meticulously crafted to match the exact specifications of Honda s original equipment, featuring a **24-tooth design** that optimizes gear engagement for smooth acceleration, efficient fuel consumption, and reduced wear on the transmission system. Crafted from high-grade, heat-treated steel, the gear is engineered to withstand the demands of daily commuting, urban riding, and occasional high-speed maneuvers, delivering consistent durability even under moderate stress. Its **precision-machined teeth** ensure minimal backlash and quiet operation, while the **polished shaft interface** guarantees a secure, vibration-free fit within the transmission housing, preventing premature wear on bearings and synchronizers. Ideal for riders upgrading from worn or damaged gears, this part is a perfect solution for restoring peak performance to older scooters or maintaining the efficiency of well-used models. Whether replacing a failed gear, enhancing transmission smoothness, or addressing subtle performance issues, this **OEM-quality NOS component** offers a cost-effective, high-performance alternative to aftermarket alternatives, ensuring compatibility, reliability, and the confidence of riding with genuine Honda engineering.

### **Pros and Cons of Buying a Honda 23471-052-000 (NOS Shaft, Top Gear 24T, ATC110/ATC90/CT90/CL90/S90/SL90) Transmission**

This part is a **Honda 23471-052-000** reverse idler shaft assembly, commonly used in **ATC110, ATC90, CT90, CL90, S90, and SL90** automatic transmissions. Below is a detailed breakdown of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

1. **New Old Stock (NOS) Quality**

- The part is **brand new but never opened or installed**, meaning it has not been exposed to wear, contamination, or handling damage. This ensures it meets Honda s original specifications without degradation.

- Unlike used or rebuilt parts, it has **no unknown service history**, reducing the risk of hidden issues like internal corrosion or improper machining.

2. **Direct Fitment for Honda Transmissions**

- This shaft is **exact-fit** for the listed transmissions (ATC110, ATC90, CT90, CL90, S90, SL90), meaning no modifications are required. It integrates seamlessly with the transmission s internal components.

- Compatible with **Honda s 4th-gen automatic transmissions**, which are found in vehicles like the **Civic (2001-2005), Accord (2003-2005), CR-V (2002-2005), and others**.

3. **Reduced Risk of Transmission Failure**

- The **reverse idler shaft** is a critical component in automatic transmissions, facilitating smooth gear engagement, especially in reverse. A worn or damaged shaft can cause **grinding noises, delayed engagement, or complete failure**.

- Replacing it with a **new part** eliminates the risk of **pre-existing wear, bent shafts, or seized bearings**, which are common in used parts.

4. **Long-Term Reliability**

- Honda transmissions are known for durability, but **internal wear over time** can affect performance. A **new shaft** helps maintain the transmission s efficiency and longevity.

- Since this is a **high-precision part**, it reduces the likelihood of **premature failure** in other transmission components (e.g., planetary gears, clutches).

5. **Easier Installation and Adjustment**

- Because the part is **new**, it aligns perfectly with the transmission s housing and other components, making installation **straightforward** for a mechanic with experience in Honda transmissions.

- No need for **custom machining or shimming**, as the part is designed to fit without modification.

6. **Warranty Coverage (If Purchased from a Reputable Supplier)**

- If bought from an **authorized Honda parts distributor or a trusted aftermarket supplier**, the part may come with a **limited warranty**, providing peace of mind against defects.

- Some sellers offer **lifetime warranties** on transmission components, which can be beneficial for long-term use.

7. **Prevents Costly Transmission Overhauls**

- Ignoring a failing reverse idler shaft can lead to **severe internal damage**, requiring a **full transmission rebuild or replacement** a much more expensive repair.

- Replacing just this part **prevents cascading failures** in the transmission system.

8. **Compatibility with Upgrades**

- If you plan to **modify your transmission** (e.g., for performance tuning), a **new shaft** ensures compatibility with aftermarket upgrades without risking damage.

---

### **Cons**

1. **Higher Upfront Cost Compared to Used Parts**

- A **new OEM or NOS part** will cost significantly more than a **used or rebuilt shaft** from a salvage yard or online marketplaces.

- For example, a **used reverse idler shaft** might cost **$50 $100**, while a **new NOS part** could range from **$200 $400**, depending on the supplier.

2. **Potential for Counterfeit or Low-Quality Parts**

- The aftermarket is flooded with **fake Honda parts**, especially from **Chinese or unscrupulous sellers**. Buying from **unverified sources** risks receiving a **poorly made, mislabeled, or incompatible part**.

- Always **verify the seller s reputation** and check for **authentic Honda part numbers** or **Genuine Honda branding**.

3. **Labor Costs for Installation**

- Replacing a reverse idler shaft requires **transmission disassembly**, which is a **labor-intensive job**. Most mechanics charge **$150 $300 ** for transmission work, depending on complexity.

- If the transmission is **already in poor condition**, additional repairs may be needed, increasing costs.

4. **Limited Availability of NOS Parts**

- While Honda still produces some **OEM parts**, **NOS inventory can be limited**, especially for older transmission models.

- Some suppliers may **order parts on demand**, leading to **longer wait times** before receiving the component.

5. **Risk of Overkill for Minor Issues**

- If the transmission is **otherwise healthy**, replacing just the reverse idler shaft may be **preventative maintenance** rather than an immediate necessity.

- A **diagnostic check** (e.g., fluid analysis, gear inspection) might reveal that other components are the root cause of symptoms, making a full rebuild more cost-effective.

6. **Potential for Misalignment or Installation Errors**

- If the mechanic **does not follow Honda s specifications** during installation (e.g., incorrect torque, improper lubrication), it could lead to **premature wear or failure**.

- Some **DIY enthusiasts** may attempt installation but lack the **precision tools** required, risking damage.

7. **Environmental and Ethical Concerns (If Buying New vs. Used)**

- Some buyers prefer **used parts** to reduce waste, though this depends on personal ethics. However, **NOS parts are not "wasteful"** if they are **genuine and properly sourced**.

---

### **Conclusion**

Buying a **Honda 23471-052-000 NOS reverse idler shaft** is a **highly recommended choice** for anyone experiencing **reverse engagement issues, grinding noises, or delayed shifting** in their **ATC110, ATC90, CT90, CL90, S90, or SL90 transmission**. The **superior quality, reliability, and compatibility** of a new part far outweigh the **higher cost** when considering the **long-term health of the transmission**.

- **Transmission symptoms** (is the shaft the actual cause, or are other components failing?)

- **Budget** (can you afford the upfront cost, or would a used part suffice?)

- **Supplier trustworthiness** (avoid counterfeit parts by buying from **authorized dealers or reputable aftermarket suppliers**)

- **Mechanic expertise** (ensure proper installation to prevent future issues)

If the transmission is **otherwise in good condition** and the symptoms **clearly point to a failing reverse idler shaft**, then **purchasing the NOS part is the best long-term solution**. If the transmission is **old or heavily worn**, a **full rebuild or replacement** may be more economical.

---

### **Final Recommendation**

1. **Get a Professional Diagnosis First**

- Before purchasing, have a **mechanic inspect the transmission** to confirm that the reverse idler shaft is the issue. Some symptoms (e.g., reverse grinding) can also indicate **worn planetary gears, clutches, or torque converter problems**.

2. **Buy from a Trusted Source**

- **Honda Authorized Parts Distributors** (e.g., RockAuto, CarQuest, local Honda dealerships)

- **Reputable aftermarket suppliers** (e.g., **Transmission Specialties, Jegs, Summit Racing**) that specialize in Honda transmissions.

- **Avoid** unknown sellers on eBay, Facebook Marketplace, or Alibaba unless they have **verified reviews and return policies**.

3. **Consider a Full Transmission Service**

- If the transmission fluid is **old or degraded**, replacing the shaft alone may not solve the problem. A **fluid change and filter replacement** should accompany the part swap.

4. **Budget for Labor**

- Transmission work is **not cheap**, so factor in **$200 $400 for labor** depending on location and shop rates. If the transmission is **already failing**, weigh whether a **full rebuild** is more cost-effective.

5. **Proceed with Confidence if Symptoms Match**

- If the **reverse engagement is sluggish, there s a grinding noise, or the transmission hesitates in reverse**, then **replacing the reverse idler shaft is a smart preventive measure**.

- The **long-term reliability** of a new part **justifies the cost** compared to the **potential expense of a failed transmission**.

**Verdict:** **Yes, buy the NOS part if the diagnosis confirms it s the problem.** It s a **wise investment** in transmission longevity, especially for **high-mileage or performance-oriented vehicles**. Just ensure **proper installation and source verification**.

Details:

Part # 23471-052-000 mh15 GEAR 24T model Count 23 ATC110-A 1980 110 ATC110 ATV ATC110-Z 1979 ATC90-K0 1971 90 ATC90-K1 1973 ATC90-K2 1974 ATC90-K3 1975 ATC90-K4 1976 ATC90-K5 1977 ATC90-K6 1978 CL90 1967 Scrambler Dual Sport CT90 1966 Trail CT90-K1 1969 CT90-K2 1970 CT90-K3 CT90-K4 1972 CT90-K5 CT90-K6 CT90-K7 CT90-K8 CT90-K9 CT90-Z S90 1965 Super Street SL90 Disport.

part #: 23471052000 prices

• $25.95-$87.57

specifications motorcyclepadus:

• for models: Atc110, Ct90, Cl90, S90, Sl90
• for makes: Honda
• mpn: 23471-052-000
• part type: Shaft Gear

offer motorcyclepadus:

• availability: In Stock
• started: February 28, 2026
• quantity: 1
• options: Ship-to-home
• sold: 0

payments motorcyclepadus:

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

general motorcyclepadus:

• condition: New
• Motorcycle Scooter Parts Accessories > Brakes Brake Parts > Brake Pads

returns motorcyclepadus:

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

shipping motorcyclepadus:

• type: Calculated
• service: USPS Ground Advantage, USPS Priority Mail, FedEx Ground / FedEx Home Delivery
• class: Standard, Expedited
• transit: 5-11 Days
• carrier: USPS, FedEx
• cost: $12.60

seller motorcyclepadus:

• city: Houston, Texas
• rating: 100.0%
• # reviews: 1163

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