fits model: 650. make: Triumph. year: 1971–1972.

( Manufacturer Part Number: E12888 ), ( Part Type: Cylinder Head Bolt ), ( Oe/oem Part Number: E12889 ), ( Vintage Part: Yes ), ( Country/region Of Manufacture: United Kingdom )
The Triumph E12888 650 cylinder head bolts are specifically designed for Triumph motorcycles manufactured between 1971 and 1972, with the 650cc engine. These high-performance bolts are an essential upgrade for any Triumph enthusiast seeking improved engine reliability and durability.
Each bolt is meticulously crafted from premium quality steel, ensuring exceptionally high tensile strength. With a hexagonal head design, they provide a secure and reliable connection between the cylinder head and the engine block. The hexagonal heads are also recessed, allowing for easy access and torquing without the need for extensive engine disassembly.
These Triumph E12888 650 cylinder head bolts are precisely threaded to ensure a perfect fit in the engine. The thread pitch measures 1.0mm and the thread form is UNF. The bolts come in a pack of eight, with each bolt having a length of approximately 38mm and a diameter of 10mm.
The heat-treated property of these bolts makes them able to withstand the extreme temperatures generated during engine operation, offering increased resistance to fatigue and preload stability. The use of these bolts can facilitate even heat distribution within the engine and ultimately contribute to overall engine performance enhancement.
These bolts come with a chrome finish, not only adding an aesthetic appeal to your Triumph engine but also providing an extra layer of protection from corrosion. By retaining their properties under extreme conditions, they prevent rust and ensure a longer service life.
Installing these Triumph E12888 650 cylinder head bolts requires the use of recommended torque settings for proper installation. Proper torque results in maximized clamping force between the cylinder head and engine block as well as enhanced engine sealing, leading to a more efficient and powerful engine. Make sure to refer to your Triumph owner's manual for the suggested torque value.
In summary, the Triumph E12888 650 cylinder head bolts are an essential upgrade for the Triumph motorcycles with the 650cc engine from 1971 to 1972. Their superior strength, durability, and resistance to corrosion make them the perfect choice for enhancing engine reliability and performance.
Triump E12888 650 cylinder head bolts are specifically designed for Triumph motorcycles manufactured between 1971 and 1972. In this response, I will provide you with the pros and cons of investing in these cylinder head bolts, followed by an Recommendation.
Pros:1. High-quality material: These cylinder head bolts are manufactured from high-tensile steel, ensuring superior strength and durability.
2. Correct fitment: These bolts are designed for Triumph motorcycles from the specified model year range, ensuring correct fitment and minimizing the risk of engine damage from improperly sized parts.
3. Precise thread pitch: The E12888 cylinder head bolts feature a precise thread pitch, which ensures a proper sealing surface, better head gasket compatibility, and reduced torque transmission to the engine block.
Cons:1. Cost: These specialized bolts may cost more than off-the-shelf options, as they cater to a specific motorcycle model and year range.
2. Availability: Due to their specific application, finding a reliable and trustworthy supplier may pose a challenge, potentially leading to concerns regarding part authenticity.
Conclusion:The Triumph E12888 650 cylinder head bolts present a significant investment when compared to standard automotive parts. However, their high-quality materials, correct fitment, and precise thread pitch contribute to better engine performance and reduced risks of damage. While the cost and availability can be drawbacks, the peace of mind gained by utilizing authentic, manufacturer-approved parts often justifies the investment.
Recommendation:To ensure the best possible outcome, consider purchasing these cylinder head bolts from a trusted Triumph motorcycle parts dealer or supplier. Review their reputation, customer feedback, and returns policy before making a purchase to mitigate the risk of receiving counterfeit or subpar parts. Additionally, purchasing in bulk or during sales events can help offset the cost advantage. Ultimately, investing in genuine Triumph cylinder head bolts can lead to better engine performance, reliability, and longevity for your motorcycle.
Will fit 1971 model's as well. Removed from 1972 1/2 Bonneville T120V with a low frame. 4 bolt cylinder head part # E12888, to rocker box E12889, bolts E327, 1 E4771. Used Cylinder head bolts from Triumph 650 1972.
Original parts not reproduction.