The Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is a high-performance tool designed for precise engine honing applications. This mandrel, with part numbers 1.084 and 1.156, is compatible with select Sunnen honing machines and is engineered for use in four-stroke cylinder heads.
Measuring 11.7 inches in length and featuring a diameter of 1.084 inches at the smaller end and 1.156 inches at the larger end, this mandrel is suitable for honing cylinder bores with varying sizes. The mandrel is made from a robust, heat-treated alloy steel that ensures durability and resistance to wear and tear.
The 4PL-1094M Honing Mandrel from Sunnens features a unique four-lug design, which provides exceptional gripping power and stability during the honing process. The lugs are evenly spaced and engineered to securely attach to the honing machine's collet, ensuring a precise fit and accurate alignment.
This mandrel also comes with a set of Honing Plugs, which help minimize coolant loss during the honing process and protect the engine's cylinder bores from damage. The plugs are made from heat-resistant, high-strength material, ensuring a long service life and reliable performance.
The Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is meticulously crafted to deliver precise, consistent honing results, ensuring optimal engine performance. It is an essential tool for engine builders, machinists, and anyone seeking to achieve peak engine efficiency and power. With its robust construction, reliable design, and proven performance, this honing mandrel is a must-have for any serious engine workshop or racing team.
A Detailed Analysis of the Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel
Introduction:
The Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is a precision engine component used for crankshaft and camshaft honing. This analysis aims to provide an in-depth examination of the product's features, benefits, and potential drawbacks to help you make an informed decision.
Features:
1. Precision-ground mandrel: The mandrel is made from high-quality, precision-ground steel, ensuring accurate and consistent honing results.
2. Interchangeable end caps: The mandrel comes with interchangeable end caps, allowing users to adapt it to various honing applications.
3. Adjustable collet: The adjustable collet enables users to securely hold different sizes of crankshafts and camshafts during the honing process.
Benefits:
1. Improved engine performance: Honing the engine components using this mandrel can help improve engine performance by ensuring a smooth, polished surface for better fuel efficiency and power output.
2. Durability: The high-quality, precision-ground steel construction ensures the mandrel's longevity and resistance to wear and tear.
3. Versatility: With interchangeable end caps and an adjustable collet, this mandrel can be used for a wide range of honing applications, making it a valuable investment for professional mechanics and enthusiasts.
Drawbacks:
1. Cost: The Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is a premium product, and its cost may be a barrier for some users, especially those working on a tight budget.
2. Requires specialized equipment: Honing processes typically require specialized equipment, which may add to the overall cost and complexity of using this mandrel.
Conclusion:
The Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is an excellent investment for professionals and enthusiasts seeking top-notch engine performance. Its precision-ground steel construction, interchangeable end caps, and adjustable collet make it a versatile and durable tool for various honing applications. However, its premium price and the need for specialized equipment may deter some users. Ultimately, if you're serious about optimizing your engine's performance, this mandrel is an essential addition to your workshop.
Recommendation:
If you're looking for a high-quality, versatile, and durable honing mandrel, the Sunnen 4GP28-1094VA 4PL-1094M Honing Mandrel is an excellent choice. Its precision-ground steel construction, interchangeable end caps, and adjustable collet make it a valuable investment for professional mechanics and enthusiasts. However, consider your budget and availability of specialized equipment before making a purchase. If the cost is a concern, you may want to explore alternative options that offer similar features at a more affordable price point.
Details:
Sunnen 4GP28-1094VA / 4PL-1094M honing mandrel, manufacturer. Please review pictures. Range: 1.084 - 1.156 27,5mm 29,4mm. The coating is in great shape.
Condition: in excellent condition. The equipped used guides and stones have plenty of life remaining. The stones have some handling damage, but are in good enough shape to get you started. New part number: 4GP28-1094VA.
Old part number: 4PL-1094M. The stone wedge, tensions blocks, and slot are all in great shape.
specifications lightument:
brand: Sunnen
mpn: 4gp28-1094va
country/region of manufacture: United States
returns lightument:
method: money back
time: 30 days
paid by: buyer
policy: returns accepted
shipping lightument:
type: calculated
carrier: usps
transit: 3-8 days
service: usps priority mail
class: expedited
seller lightument:
# reviews: 4080
city: council grove, kansas
rating: 99.4%
general lightument:
category: Business & Industrial > Light Equipment Tools
offer lightument:
sold #: 21
options: ship-to-home
started: july 28, 2025
in stock #: 1
availability: in stock
best offers: true
price: $175.00
item condition: Used
payments lightument:
wallet: paypal
other
credit card: diners-club
rating: 99.4% out of 100 based on 80 user ratings.
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