LowPricedAutoParts Brass Freeze Plug Kit (Expansion/Core Plugs) - Fits AMC Jeep 199 232 258 Inline-6 Engines 1964-1990

Protect your classic AMC or Jeep inline-6 from coolant leaks and freeze-related block damage with this premium brass freeze plug kit from LowPricedAutoParts – a complete set designed for the 3.3L/199, 3.8L/232, and 4.2L/258 OHV Inline-6 engines (naturally aspirated applications; designations 1L, 3L, 7L, 8L, 9L; GAS) from 1964–1990. This high-quality kit fits iconic models like CJ5/CJ6/CJ7, Cherokee, Wagoneer, Gladiator, Commando, Scrambler, Wrangler, AMX, Gremlin, Hornet, Javelin, Matador, and more – essential for engine rebuilds, refreshes, or replacing worn/corroded plugs in these tough, torque-rich inline-6s that powered American classics and legendary off-roaders with proven reliability and low-end grunt. The kit supplies all necessary premium brass freeze plugs (also known as core plugs or expansion plugs) to seal block casting holes, offering superior corrosion resistance over steel for reliable coolant containment and protection against cracking in cold climates or rugged trail conditions. Matched to the AMC/Jeep inline-6 specs, these plugs provide a precise, OEM-style fit that minimizes leak risks, maintains cooling efficiency, and promotes long-term engine health. Ideal for tackling age-related deterioration during overhauls – this set helps revive your vehicle's legendary durability, smooth operation, and trail-ready performance for years of on- and off-road adventures. This is not a universal kit for non-AMC/Jeep inline-6 engines or severely damaged blocks without inspection – professional measurement of plug holes, thorough cleaning, and correct installation techniques (with sealants as per AMC/Jeep guidelines) are crucial for a tight, distortion-free seal. Always verify hole diameters and drive plugs squarely during assembly. Verify your exact year and application before ordering. LowPricedAutoParts is committed to providing the right parts with reliable customer support—message us your engine details or any fitment questions for fast, expert assistance. We're here to support your rebuild every step of the way. Shop with confidence knowing LowPricedAutoParts delivers quality automotive parts backed by outstanding service.

• Complete brass expansion plug kit for American Motors and Jeep 3.3L/199, 3.8L/232, and 4.2L/258 OHV Inline-6 engines (naturally aspirated; designations 1L, 3L, 7L, 8L, 9L; GAS) from 1964–1990 – verify year and vehicle (e.g., CJ5/CJ6/CJ7, Cherokee, Wagoneer, Gladiator, Commando, Scrambler, Wrangler, AMX, Gremlin, Hornet, Javelin, Matador) for exact match in Jeeps and classic cars
• Includes a full set of premium brass freeze plugs (core plugs) for engine block sealing – superior corrosion resistance compared to steel; critical for preventing coolant leaks, protecting against freeze damage, and sealing casting holes during rebuilds or repairs
• Precision-engineered to OEM specs for the AMC/Jeep inline-6 family (plug holes match factory block hole sizes – confirm your specific plug hole diameters before ordering; no additional modifications needed if within spec)
• Premium brass construction delivers excellent long-term durability and secure sealing in off-road, trail, and utility applications – restores coolant system integrity, prevents block cracks or overheating, and supports dependable low-end torque for work, off-roading, or restoration
• Professional installation recommended – clean plug holes thoroughly (side row on block), apply appropriate sealant per AMC/Jeep specs if needed, and drive plugs in evenly/squarely to avoid distortion; pressure-test for leaks post-assembly to ensure maximum protection
• Contact LowPricedAutoParts for fitment questions, plug size confirmation, or compatibility with your 1964–1990 AMC/Jeep vehicle; we're here with fast, reliable support every step of the way