Description
Product Overview
The Pioneer PE-108-B Engine Expansion Plug Kit is engineered for durability and precision. Constructed from high‑grade steel, each plug provides a tight seal to prevent leaks and maintain optimal engine compression. The kit includes multiple sizes to accommodate various cylinder bore dimensions, ensuring a perfect fit for a wide range of automotive applications. Dimensions of the individual plugs are compact—7.75 x 8.75 x 0.5 inches—and the entire package weighs just 8.48 ounces, making storage and handling effortless.
Usage
Designed for both professional workshops and home garages, this kit excels in routine engine maintenance, repair of worn plugs, and performance upgrades. Ideal for gasoline and diesel engines, it suits passenger cars, light trucks, and small commercial vehicles. Installation requires standard tools and can be completed in under an hour, minimizing downtime. 
Why Choose Us
Pioneer’s reputation for automotive excellence backs this product. Each plug undergoes rigorous quality testing to meet OEM specifications, guaranteeing longevity and resistance to corrosion. The kit’s compact packaging—1.016 cm length, 20.827 cm width, 24.384 cm height, and 0.249 kg weight—facilitates easy shipping and storage. With a Best Sellers Rank of #37 in Engine Expansion Plug Kits, customers trust its performance and value.
Key Features
- High‑strength steel construction for superior durability
- Multiple plug sizes to match various cylinder bore diameters
- Compact dimensions for easy access in tight engine bays
- OEM‑approved design ensures perfect fit and seal
- Lightweight packaging simplifies handling and inventory management
FAQ
What engine types are compatible with the PE-108-B kit?
The kit is suitable for most gasoline and diesel engines found in passenger cars, light trucks, and small commercial vehicles. Refer to the included size chart to match your specific engine model.
Do I need special tools to install these plugs?
No special tools are required. Standard socket wrenches and a torque wrench are sufficient for proper installation.
How does the kit ensure a leak‑free seal?
Each plug is machined to precise tolerances and features a tapered design that expands against the cylinder wall, creating a tight, leak‑proof seal.
Can I use this kit for performance upgrades?
Yes, the high‑quality steel and precise fit make the plugs ideal for both standard repairs and performance‑oriented rebuilds.
What is the warranty on this product?
Pioneer offers a limited one‑year warranty covering manufacturing defects, providing peace of mind for your purchase.






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