HARLEY-DAVIDSON 1257ABC Rocker Box Arms

( Brand: Harley-davidson ), ( Manufacturer Part Number: 1257ABC ), ( Type: Rocker Box )

Review HARLEY DAVIDSON Rocker Box Arms Installed Oem fits SHOVELHEAD 1966–1984

Introducing the Harley-Davidson 1257ABC Shovelhead Rocker Box Arms, a crucial component for the classic Shovelhead engine used in Harley-Davidson motorcycles from 1966 to 1984. These rocker box arms are designed to provide the necessary support for the engine's valves, ensuring optimal performance and reliability.

Each arm is meticulously crafted from high-quality steel, ensuring durability and strength. The arms feature a classic, timeless design that aligns perfectly with the aesthetics of the Shovelhead engine. The smooth, polished finish adds a touch of elegance, making these arms a great addition for both restoration projects and original bikes.

The Harley-Davidson 1257ABC Shovelhead Rocker Box Arms are designed to fit seamlessly with the rest of the Shovelhead engine components. They measure 11 inches in length, with a diameter of 1.75 inches at the base, tapering down to a diameter of 1.25 inches at the end. This tapered design ensures a secure and snug fit with the rocker arms and other engine components.

These rocker box arms are also easy to install, making them a popular choice among Harley-Davidson enthusiasts. They come as a pair, and each arm includes a set of new, high-quality bushings to ensure a smooth, frictionless operation.

In summary, the Harley-Davidson 1257ABC Shovelhead Rocker Box Arms are a vital upgrade for any Shovelhead engine. Their durable construction, classic design, and easy installation make them an essential addition for any Harley-Davidson restoration project or original bike.

title: Pros and Cons of Buying Harley-Davidson 1257ABC Shovelhead Rocker Box Arms (1966-1984)

The Harley-Davidson 1257ABC Shovelhead Rocker Box Arms were used in Harley-Davidson motorcycles from 1966 to 1984. These parts are important for maintaining the engine's performance and longevity. In this article, we will discuss the pros and cons of buying these rocker box arms.

1. Authenticity: These rocker box arms are original Harley-Davidson parts, ensuring a perfect fit and original look for your motorcycle.

2. Quality: Harley-Davidson is known for its high-quality motorcycle parts, and these rocker box arms are no exception. They are made of durable materials and are designed to last.

3. Performance: The rocker box arms are a critical component of the engine's valvetrain system. Replacing worn-out or damaged parts with new ones can improve engine performance and power.

4. Safety: Worn-out or damaged rocker box arms can cause engine damage or even failure. Replacing them with new ones can help prevent safety issues and costly repairs down the road.

1. Cost: Original Harley-Davidson parts can be expensive, especially for hard-to-find items like rocker box arms.

2. Availability: These parts may be difficult to find in local shops or through Harley-Davidson dealerships. You may need to order them online or from a specialty parts supplier.

3. Installation: Installing these parts may require some mechanical knowledge and skills. If you are not comfortable working on your motorcycle, you may need to hire a professional mechanic.

The Harley-Davidson 1257ABC Shovelhead Rocker Box Arms are an essential purchase for any Harley-Davidson motorcycle owner from the 1966 to 1984 era. While they can be expensive and difficult to find, the benefits of using original, high-quality parts outweigh the cons. These parts can improve engine performance, ensure safety, and maintain the authenticity and value of your motorcycle. If you are not comfortable installing the parts yourself, consider hiring a professional mechanic to do the job for you.

If you are in the market for Harley-Davidson 1257ABC Shovelhead Rocker Box Arms, we recommend ordering them from a reputable Harley-Davidson parts supplier or online marketplace. Make sure to double-check the part number and compatibility with your motorcycle model before making a purchase. If you are unsure about installation, consider hiring a professional mechanic to do the job for you. The peace of mind and improved performance of your motorcycle will be worth the investment.

Details:

A1181 TXK 0925 5202. Item comes only with what is pictured, NO other materials available.

part #: 1257abc prices

• $650.99-$899.99

specifications cylindermotorcycleiz:

• for models: Shovelhead
• for makes: Harley
• for years: 1966-1984
• brand: Harley-davidson
• mpn: 1257abc
• type: Rocker Box

shipping cylindermotorcycleiz:

• cost: $0.00
• type: Fixed
• service: Economy, USPS Priority Mail, UPS Next Day Air Saver
• transit: 3-7 Days
• carrier: USPS, UPS
• class: Economy, Expedited, One-day

general cylindermotorcycleiz:

• condition: Used
• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads

offer cylindermotorcycleiz:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: September 8, 2025

seller cylindermotorcycleiz:

• rating: 98.7%
• # reviews: 15494
• city: Athens, Georgia

payments cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

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