Dorman Products

Dorman 550-028 Expansion Plug

In stock
SKU: 591|550028
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Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
$18.70
Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.

Product details

  • SKU 591|550028
  • Barcode 19495550280

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Description

Product Description

This engine expansion plug is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

  • Direct replacement - this engine expansion plug matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution - this plug is a reliable replacement for an original part that is missing or has failed due to fatigue
  • Durable construction - this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality - backed by team of product experts in the United States and more than a century of automotive experience

Detailed Applications

Year Make Model Configuration Positions Application Notes
1962 Chevrolet C10 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet C20 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet C30 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet K10 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet K20 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet P10 Series L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 Chevrolet Suburban L6 235 3.8L (3852cc) 2 Required; 2 In.
1962 GMC 1000 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1962 GMC 1500 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1962 GMC 2500 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1962 GMC V3000 Forward Control L6 270 4.4L (4425cc) 2 Required; 2 In.
1961 Chevrolet C10 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet C20 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet C30 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet K10 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet K20 Pickup L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet P20 Series L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet P30 Series L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 Chevrolet Suburban L6 235 3.8L (3852cc) 2 Required; 2 In.
1961 GMC 1000 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1961 GMC 1500 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1961 GMC 2500 Series L6 270 4.4L (4425cc) 2 Required; 2 In.
1961 GMC V3000 Forward Control L6 270 4.4L (4425cc) 2 Required; 2 In.
1960 Chevrolet Truck L6 235 3.8L (3852cc) 2 Required; 2 In.
1960 GMC PV1000 2 Required; 2 In.
1960 GMC Truck L6 270 4.4L (4425cc) 2 Required; 2 In.
1959 GMC PM151 L6 270 4.4L 2 Required; 2 In.
1959 GMC PM152 L6 270 4.4L 2 Required; 2 In.
1959 GMC PM153 L6 270 4.4L 2 Required; 2 In.
1959 GMC PM251 L6 270 4.4L 2 Required; 2 In.
1959 GMC Truck L6 270 4.4L (4425cc) 2 Required; 2 In.
1958 Chevrolet Truck L6 235 3.8L (3852cc) 2 Required; 2 In.
1958 GMC PM151 L6 270 4.4L 2 Required; 2 In.
1958 GMC PM152 L6 270 4.4L 2 Required; 2 In.
1958 GMC PM251 L6 270 4.4L 2 Required; 2 In.
1958 GMC PM252 L6 270 4.4L 2 Required; 2 In.
1958 GMC PM253 L6 270 4.4L 2 Required; 2 In.
1958 GMC Truck L6 270 4.4L (4425cc) 2 Required; 2 In.
1957 Chevrolet Truck L6 235 3.8L (3852cc) 2 Required; 2 In.
1957 GMC PM151 L6 270 4.4L 2 Required; 2 In.
1957 GMC PM152 L6 270 4.4L 2 Required; 2 In.
1957 GMC PM153 L6 270 4.4L 2 Required; 2 In.
1957 GMC Truck L6 270 4.4L (4425cc) 2 Required; 2 In.
1956 Chevrolet Truck L6 235 3.8L (3852cc) 2 Required; 2 In.
1956 GMC PM151 L6 270 4.4L 2 Required; 2 In.
1956 GMC PM251 L6 270 4.4L 2 Required; 2 In.
1956 GMC Truck L6 270 4.4L (4425cc) 2 Required; 2 In.
1955 Chevrolet Truck L6 235 3.8L (3852cc) 2 Required; 2 In.
1955 GMC PM151 2 Required; 2 In.
1955 GMC PM152 2 Required; 2 In.
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Product Specifications

Describe Type: Concave
Material: Steel
Maximum Diameter: 2 in
Minimum Diameter: 2 in
Package Contents: 10 Expansion Plugs
Package Quantity: 10
Brand: Dorman - AutoGrade - Boxed
Packaging Type: Box

OE Numbers

DIRECT OE CROSS
3835121 GENERAL MOTORS
63556-R1 NAVISTAR