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Dorman 02523 Brass Cup Expansion Plug 35.21mm Engine Freeze Plug

(Dodge Challenger 1978-79, Grand Caravan 1992-2000, Avenger 2000, Stealth 1991-96, Monaco 1991-92, Ram 50 1983-93, Omni 1983-86 + 16 more models)

Manufacturer

Picture for manufacturer Dorman

Part Number

02523
19 reviews
Sale Price

$13.03

In Stock (5)

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Product Details

The Dorman 02523 is a brass cup-type engine expansion plug (also known as a freeze plug or core plug) measuring 35.21mm in diameter with a height of 0.380 inches. Designed as a direct OE replacement, this plug restores a secure, leak-resistant seal in engine block and cylinder head openings where the original plug has corroded, failed, or gone missing.

Manufactured by Dorman's AutoGrade Expand-Tite line, this brass cup expansion plug offers corrosion resistance superior to steel alternatives, making it well-suited for cooling system environments exposed to coolant and moisture. The cup-style design installs by driving the plug into the bore, where the rim expands to form a tight mechanical seal against the casting.

Key Features:

  • Plug Type: Cup Type (Expand-Tite)
  • Material: Brass — corrosion-resistant for long service life
  • Nominal Diameter: 35.21mm (~1-3/8 in.)
  • Height: 0.380 inches
  • Direct replacement for original equipment expansion plugs
  • Ideal for replacing plugs that have failed due to corrosion, fatigue, or freeze damage
  • Backed by Dorman's team of ASE Blue Seal Certified technical support experts
  • Cross-reference / alternate part number: 565-093

Dorman's engine expansion plugs are available in multiple styles including Cup Type, Pilot Seal, Reverse Taper, Concave, and Quick-Seal variants — ensuring the right solution for virtually any engine application.

Products specifications

Fits

Dodge Challenger 1978-79, Grand Caravan 1992-2000, Avenger 2000, Stealth 1991-96, Monaco 1991-92, Ram 50 1983-93, Omni 1983-86, Colt 1971-83, 1985-94, Power Ram 50 1983-84; Chevrolet Nova 1985-87, S10 Blazer 1983-84, LUV 1975-81 + 11 more models

Feature - Benefit 1

Many sizes available

Feature - Benefit 2

Conveniently available in packs of different quantities

Feature - Benefit 3

Constructed from high quality steel, copper, brass, or rubber

Feature - Benefit 4

Dormans Engine Expansion Plugs are constructed to strict engineering quality standards

Describe Type

Cup Type

Package Contents

Expansion Plug

Maximum Diameter

1.393

Minimum Diameter

1.379

Material

Brass

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