Description
Product Overview
The Hihaha Engine Brass Freeze Plug is engineered for durability and precise fit. Made from high‑grade brass, this freeze plug offers superior resistance to corrosion and thermal stress, ensuring a long‑lasting seal in the engine block. Designed for inner placement, it matches the original manufacturer specifications (part number uu000289a230625) and weighs only 7 ounces, making it lightweight yet robust. Its compact dimensions (5.43 x 3.98 x 0.79 inches) allow easy handling during installation.
Usage
Ideal for small block engines ranging from 255ci to 351ci, this plug is perfect for classic and modern vehicles produced between 1962 and 2001. Whether you are performing routine maintenance or repairing a cracked freeze plug, the part integrates seamlessly into the cooling system, preventing coolant loss and overheating. Automotive technicians and DIY enthusiasts alike will appreciate the straightforward replacement process, which restores engine reliability without the need for specialized tools.

Why Choose Us
Hihaha stands for quality in automotive components. Each freeze plug undergoes rigorous testing to meet industry standards, guaranteeing a perfect fit and optimal performance. Our commitment to material excellence means you receive a plug that resists rust and maintains structural integrity under high temperature cycles. Backed by positive customer reviews (4.3 out of 5 stars) and a solid best‑seller rank in the engine replacement category, this product delivers confidence and value.
Key Features
- Premium brass construction for maximum durability and corrosion resistance
- Direct‑replace design fits OEM specifications for small block engines 255ci‑351ci
- Lightweight (7 oz) yet strong enough to withstand high thermal stress
- Easy installation without the need for additional tools or modifications
- Improves cooling system reliability, reducing risk of engine overheating
FAQ
What engine sizes are compatible with this freeze plug?
The plug is compatible with small block engines ranging from 255ci to 351ci, covering many models produced between 1962 and 2001.
Is any special tool required for installation?
No special tools are needed. The plug is designed for a direct replacement, allowing you to remove the old plug and insert the new one with basic hand tools.
How does the brass material benefit the engine?
Brass offers excellent resistance to corrosion and can endure the high temperature fluctuations within the engine block, ensuring a long‑lasting seal.
Can this part be used in modern vehicles?
Yes, as long as the engine falls within the specified displacement range (255ci‑351ci), the plug will function correctly in both classic and newer models.
What is the warranty on this product?
Hihaha provides a one‑year limited warranty covering manufacturing defects, giving you peace of mind with your purchase.





Allstar Performance Engine Expansion Plugs 30.98
Trailer Dolly Tow Tuff Heavy Duty 1000lb Steel Black TMD-1000CATV
Uniflasy Gas Burner for Ooni Pizza Oven Accessories, for Ooni Karu 12 Gas Burner Attachment, Replace for 12G Adapter, for Fyra 12 with Propane Conversion Kit, fits Bighorn Outdoors Pizza Oven 12"
Ultra-Tow 1200-lb. Load Capacity Caster Dolly
Dorman Alloy Steel Engine Camshaft Plug
Reviews
There are no reviews yet.