YAMAHA 2A6-13178-00-00 Oil Pump Drive Gear

( Manufacturer Part Number: 2A6-13178-00-00 ), ( Part Type: Oil Pump Drive Gear )

Review YAMAHA Oil Pump Drive Gear #2a6-13178-00-00 fits DT125 1979

The **Yamaha DT125 1979 Oil Pump Drive Gear (Part Number: 2A6-13178-00-00)** is a meticulously engineered component essential for maintaining the lubrication and longevity of your classic Yamaha dual-sport motorcycle. This precision-machined gear is designed to fit seamlessly into the oil pump assembly of the DT125 s 125cc air-cooled, single-cylinder engine, ensuring smooth and reliable oil circulation under demanding riding conditions. Crafted from high-quality steel, the gear is forged to exacting tolerances, allowing it to mesh flawlessly with the oil pump s internal mechanism while withstanding the stresses of high RPMs and prolonged use. Its robust construction prevents premature wear, which is critical for preserving the engine s performance and preventing costly internal damage. Whether you re restoring a vintage DT125 for track use or maintaining a reliable off-road companion, this gear is a vital replacement part that guarantees optimal oil flow, reducing friction and heat buildup within the crankcase. The part s compatibility with the 1979 model year ensures a perfect fit, eliminating the need for modifications or compromises in fitment. For enthusiasts who appreciate the blend of classic design and modern reliability, this gear is an indispensable upgrade or replacement, helping to extend the life of your Yamaha s engine while upholding the motorcycle s legendary durability.

### Pros and Cons of buying a Yamaha DT125 Oil Pump Drive Gear (Part Number: 2A6-13178-00-00, 1979 Model)

1. **Authentic Fit and Functionality** This is an original Yamaha part designed specifically for the 1979 DT125, ensuring a perfect fit and reliable performance. Aftermarket parts may not match the original specifications, leading to potential issues like leaks or improper operation.

2. **Reliability and Durability** Yamaha parts are known for their quality and longevity. The oil pump drive gear is a critical component that, when in good condition, helps maintain proper lubrication, reducing wear on the engine over time.

3. **Easier Maintenance and Repairs** Using an original part simplifies troubleshooting and maintenance. Mechanics familiar with Yamaha engines will be more confident working with genuine components, reducing the risk of errors during installation.

4. **Prevents Long-Term Damage** If the oil pump drive gear is worn or damaged, it can lead to insufficient oil flow, causing increased friction, overheating, and eventual engine failure. Replacing it with an original part ensures the engine remains properly lubricated.

5. **Resale Value** If you plan to sell the bike later, having original Yamaha parts (especially on a classic like the DT125) can make the bike more appealing to collectors and enthusiasts who value authenticity.

6. **Compatibility with Other Original Parts** Since this is an original component, it integrates seamlessly with other genuine Yamaha parts, reducing the risk of compatibility issues that might arise with mixed aftermarket and OEM parts.

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1. **Cost** Original Yamaha parts can be significantly more expensive than aftermarket alternatives. The price may be a barrier, especially if you're working on a tight budget or restoring multiple bikes.

2. **Availability and Lead Times** Finding an exact replacement for a vintage part like this can be challenging. You may need to source it from a specialty motorcycle parts dealer, a salvage yard, or even a collector, which could take time and require patience.

3. **Condition of the Part** Since this is a used part (assuming you're purchasing it secondhand), there s a risk it may have been previously damaged or worn out. Without thorough inspection or testing, you might end up with a faulty component that fails shortly after installation.

4. **Labor Costs** If you're not mechanically inclined, replacing this part may require professional labor, adding to the overall expense. The oil pump drive gear is located in the engine, so the job involves disassembly and reassembly, which can be time-consuming.

5. **Alternative Solutions** In some cases, modifying or repairing the existing gear (if it s not severely damaged) might be a cheaper option than replacing it entirely. However, this depends on the extent of the wear and your mechanical skills.

6. **Potential for Counterfeit Parts** If purchasing online, there s a risk of receiving a counterfeit or low-quality replica, especially if the seller is not reputable. Always verify the authenticity of the part before buying.

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Buying the original Yamaha oil pump drive gear (2A6-13178-00-00) for your 1979 DT125 is the most reliable choice if you prioritize authenticity, long-term engine health, and ease of maintenance. The part ensures proper lubrication, reduces the risk of engine damage, and maintains the bike s original integrity especially valuable for classic or collector models.

However, the higher cost, potential availability issues, and the need for careful sourcing or professional installation may make it less practical for budget-conscious or inexperienced restorers. If you're confident in your mechanical skills and can find a high-quality, authentic part, the investment is justified. Otherwise, carefully weighing the pros and cons against alternatives (such as aftermarket parts or repairs) is advisable.

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1. **If you value authenticity and engine reliability** Proceed with purchasing the original Yamaha part, preferably from a trusted dealer or a reputable salvage yard. Inspect the part thoroughly (or have a mechanic verify it) before installation to ensure it s in good condition.

2. **If budget is a concern** Explore aftermarket alternatives from reputable brands (e.g., Yamaha-compatible parts from companies like **Yamaha Motorcycle Parts, Cycle Parts Direct, or eBay verified sellers**). Ensure the part is compatible and has good reviews before buying.

3. **If you're unsure about installation** Have a mechanic perform the replacement to avoid mistakes that could lead to further damage. This is especially important for critical components like the oil pump drive gear.

4. **If the part is damaged but repairable** Consider consulting a mechanic to assess whether the existing gear can be refurbished or replaced with a cheaper alternative before committing to the original part.

Ultimately, the decision depends on your priorities whether you prefer the peace of mind of an original part or the cost savings of an aftermarket solution. For a classic like the DT125, many owners find the original part worth the investment for long-term satisfaction.

Details:

Yamaha 1979 DT125 Oil Pump Drive Gear #2A6-13178-00-00. Please see pictures for condition.

part #: 2a6131780000 prices

• $9.99-$21.51

specifications cyclevintagee:

• for models: Dt125
• for makes: Yamaha
• for years: 1979
• mpn: 2a6-13178-00-00
• part type: Oil Pump Drive Gear

offer cyclevintagee:

• quantity: 1
• started: June 10, 2026
• options: Ship-to-home
• sold: 0
• availability: In Stock

payments cyclevintagee:

• other
• wallet: Paypal
• credit card: Visa

seller cyclevintagee:

• city: Reno, Nevada
• rating: 99.4%
• # reviews: 2455

general cyclevintagee:

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

returns cyclevintagee:

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

shipping cyclevintagee:

• class: Standard
• cost: $7.00
• carrier: USPS
• transit: 3-8 Days
• service: USPS Ground Advantage
• type: Fixed

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