HARLEY-DAVIDSON 309-36 Nos Connecting Rod Pin Rl Wla 348-29A 45 Servicar P237

( Brand: Harley-davidson ), ( Manufacturer Part Number: 309-36 ), ( Part Type: Rod Pin ), ( Country Of Origin: United States )

Review HARLEY DAVIDSON Nos Connecting Rod Pin Dl Rl Wl Wlaservicar fits 1929–1973

The **Harley-Davidson 309-36 NOS (New Old Stock) Connecting Rod Pin (Part Number: 348-29A DL 45 RL WLA, Servicar P237)** is a meticulously preserved, high-performance component designed to restore or enhance the reliability and performance of classic Harley-Davidson engines from the 1929 through 1973 model years, specifically those equipped with the iconic **45-cubic-inch (740cc) Evolution or Panhead** engines. This connecting rod pin, also known as the wrist pin or small end pin, is a critical linkage in the engine s reciprocating motion, transmitting the explosive force of combustion from the piston to the crankshaft via the connecting rod. Crafted from **high-grade, heat-treated steel**, this pin is engineered to withstand the immense stresses of high-revving engines while maintaining precise alignment within the rod s small end bushings, ensuring smooth operation and minimizing wear over extended periods of use.

The **348-29A DL 45 RL WLA** designation breaks down into specific technical details that make this part a perfect fit for vintage Harley-Davidson applications. The **"DL 45"** indicates it is tailored for the **45-cubic-inch displacement** engines, which include the legendary **Panhead (1948 1965), Shovelhead (1966 1973), and early Evolution models (1973 1977)**. The **"309-36"** refers to the original part number range, while **"NOS"** signifies that this pin has been carefully selected from a stock of **authentic, unused, or minimally used components** from the era, ensuring it retains its original manufacturing integrity without modern modifications that could compromise authenticity. The **"Servicar P237"** designation further confirms its compatibility with Harley-Davidson s original service parts catalog, aligning with the **right-hand (RL) rotation** and **WLA (Wide-Lug Assembly)** configuration, which is standard for most right-side cylinder engines in this era.

What sets this connecting rod pin apart is its **precision machining and surface finish**, designed to fit snugly within the rod s small end, reducing lateral play and preventing premature wear on the rod s bearings or the cylinder walls. The pin s **smooth, polished surface** ensures minimal friction, which is crucial for maintaining efficient power transfer and engine longevity, particularly in high-performance or restored engines where stock components may have deteriorated over decades of use. Additionally, the **correct fitment** of this pin whether in a **restoration project, a hot rod build, or a classic bike undergoing a full overhaul** helps preserve the engine s original character while significantly improving its mechanical efficiency.

For collectors, restorers, and enthusiasts seeking **authentic, high-quality NOS parts**, this connecting rod pin is an essential component for maintaining the integrity of a Harley-Davidson s drivetrain. Its inclusion in a rebuild ensures that the engine operates with the same reliability and performance intended by Harley-Davidson s original engineers, bridging the gap between vintage craftsmanship and modern restoration standards. Whether used in a **fully restored 1950s Panhead or a carefully rebuilt 1973 Shovelhead**, this pin exemplifies the precision and durability that have made Harley-Davidson engines legendary, offering both performance enthusiasts and purists a piece of mechanical history that continues to turn smoothly under the hood.

### **Analysis of Purchasing a Harley-Davidson 309-36 NOS (1929 1973) Connecting Rod Pin (Part #348-29A DL 45 RL WLA, Servicar P237)**

This part is a **New Old Stock (NOS) connecting rod pin** for Harley-Davidson s **45-cubic-inch (RL/WLA) flathead engines**, produced between **1929 and 1973**. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of Buying This Part**

1. **Authentic NOS Condition**

- The part is **brand new but never used**, meaning it retains original factory specifications, tolerances, and materials. This ensures a perfect fit and performance without wear or degradation.

- Unlike rebuilt or aftermarket parts, NOS components are **free from modifications** that could alter the original engine s character.

2. **Rarity and Collectibility**

- Harley-Davidson s early production parts, especially from the **1920s 1970s**, are increasingly difficult to source in NOS condition. This makes the part **highly desirable for collectors and restoration enthusiasts**.

- The **Servicar P237 designation** suggests it may have been part of Harley s **original service parts catalog**, further adding to its authenticity.

3. **Compatibility with Classic Engines**

- The **348-29A DL 45 RL/WLA** pin is designed specifically for Harley s **45ci flathead engines**, which were used in models like the **RL (Road King), WLA (Army Surplus), and other early Harley-Davidsons**.

- It fits **1929 1973 models**, making it versatile for restorations or upgrades on vintage bikes.

4. **Durability and Longevity**

- Early Harley-Davidson parts were built to **last decades** with proper maintenance. A NOS pin, if installed correctly, can **extend the life of a restored engine** without premature failure.

- The **steel construction** (likely chrome-plated or cadmium-plated for corrosion resistance) ensures strength under high compression and RPM.

5. **Avoiding Counterfeit or Rebuilt Parts**

- Many aftermarket or rebuilt parts may be **mismatched in quality or dimensions**. A NOS pin guarantees **original factory standards**, reducing the risk of compatibility issues.

6. **Potential for Increased Bike Value**

- If you re restoring a **high-value classic Harley**, using NOS parts can **significantly boost resale value** compared to modern or aftermarket replacements.

---

### **Cons of Buying This Part**

1. **High Cost Relative to Modern Alternatives**

- NOS parts are **expensive** due to their rarity and condition. A single connecting rod pin may cost **$100 $300 **, depending on market demand and seller.

- For budget-conscious restorers, this could be a **significant expense**, especially if multiple NOS parts are needed.

2. **Limited Availability and Lead Times**

- Finding a **single NOS part** can be challenging, and sellers may have **long waitlists or backorders**. Some parts may no longer be in stock at major dealers.

- Unlike modern parts, which can be ordered online with quick shipping, NOS items often require **specialized dealers or auctions**.

3. **Potential for Overpaying**

- The **collector s market** for NOS Harley parts can drive up prices beyond reasonable levels. Some sellers may **inflate prices** due to perceived rarity.

- Buyers must **verify authenticity** (e.g., checking original packaging, serial numbers, or dealer provenance) to avoid scams.

4. **Maintenance and Handling Challenges**

- If the part is **not installed immediately**, it may require **special storage** (e.g., anti-corrosion treatments) to prevent rust or damage.

- Handling a **single pin** (rather than a full engine rebuild kit) means the buyer must **source other related parts** (e.g., bearings, seals, gaskets) separately, adding complexity.

5. **Modern Engine Modifications May Not Suit NOS Parts**

- If the engine is being **heavily modified** (e.g., forced induction, high-performance camshafts), a **stock NOS pin may not be sufficient** for modern stress levels.

- Some restorers prefer **aftermarket or upgraded pins** for better durability in high-performance applications.

6. **Ethical and Sustainability Concerns**

- Some buyers question the **ethics of purchasing NOS parts** when they could instead **support modern manufacturing** or **restore existing parts**.

- There is also a **carbon footprint consideration** shipping rare NOS parts from dealers may have a higher environmental impact than sourcing modern alternatives.

---

### **Conclusion**

- **Serious collectors** who prioritize authenticity and historical accuracy.

- **Restorers working on high-value classic bikes** where NOS parts enhance resale value.

- **Enthusiasts who prefer original components** over modern replacements for a "pure" build.

- **Budget-conscious restorers** who can find equivalent aftermarket parts at a fraction of the cost.

- **High-performance builds** where upgraded or aftermarket pins may be necessary.

- **Casual riders** who do not intend to sell the bike and do not require NOS parts for aesthetic or sentimental reasons.

---

### **Recommendation**

- **Purchase the NOS pin** if budget allows, as it will **maximize authenticity and resale value**. Pair it with **other NOS components** (e.g., bearings, valves, ignition parts) for a complete restoration.

- **Verify the seller s reputation** look for dealers with **proven track records** (e.g., Harley-Davidson Heritage Parts, specialty auctions, or trusted collectors).

- **Consider a full NOS engine rebuild kit** if possible, rather than sourcing parts individually.

- **Opt for aftermarket or rebuilt pins** (e.g., **Servicar, Harley-Davidson Performance Parts, or reputable rebuilders**) that offer **similar quality at a lower cost**.

- **Check compatibility** some aftermarket pins (e.g., **chrome-moly or hardened steel**) may even **outlast original parts** in modern applications.

- **Consult a mechanic** before purchasing to ensure the part meets your engine s needs.

- **Request documentation** (e.g., original packaging, serial numbers, or dealer certification) to confirm NOS status.

- **Compare prices** across multiple sellers significant price gaps may indicate a scam or overinflated listing.

- **Consider a used NOS pin** (if available) from a **trusted source**, as it may be **cheaper than new** while still being authentic.

4. **Alternative Approach: Restore Existing Parts**

- If possible, **recondition an existing pin** from a **salvaged engine** rather than buying NOS. Many classic engines have **serviceable components** that can be cleaned, inspected, and reused.

- **Harley-Davidson s own rebuild programs** (e.g., through authorized dealers) can provide **high-quality rebuilt parts** at a lower cost than NOS.

---

### **Final Verdict**

The **348-29A DL 45 NOS connecting rod pin** is a **premium choice** for those committed to **historical accuracy and restoration integrity**. However, its **high cost and limited availability** make it impractical for casual projects or budget builds. **Weigh the value of authenticity against practicality** if money is no object and the bike is a **long-term investment**, NOS is worth it. Otherwise, **aftermarket or rebuilt alternatives** offer a **cost-effective compromise** without sacrificing performance.

Details:

This is Perfect NOS Real HD. I may be able to change settings for you. Doug Solo, DL, RL, WLA, WL Servicar. This is wrapped in Paper like the pic.

This does NOT include the Tag. I am a 35 yr AMCA member #2748. Make sure this is for your application. The 29-36 may have different oiling holes.

For Sale is: A 1929-1973 Connecting rod Pin for Solo, DL, RL, WLA, WL Servicar.

part #: 30936 prices

• $56.94-$189.95

specifications cyclevintagee:

• for makes: Harley
• for years: 1929-1973
• brand: Harley-davidson
• mpn: 309-36
• part type: Rod Pin
• country of origin: United States

general cyclevintagee:

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

shipping cyclevintagee:

• type: Calculated
• service: USPS Ground Advantage
• transit: 3-7 Days
• class: Standard
• carrier: USPS
• cost: $0.00

offer cyclevintagee:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: April 7, 2026

returns cyclevintagee:

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

seller cyclevintagee:

• # reviews: 3615
• city: Watsonville, California
• rating: 100.0%

payments cyclevintagee:

• other
• cash
• check
• money order
• credit card: Diners-club
• wallet: Google-pay

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