Dorman Products

Dorman 555-008.1 Expansion Plug

Out of stock
SKU: 591|5550081
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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
$999.00
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|5550081
  • Barcode 00019495022350

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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
1977 Chevrolet Vega 1 Required; 0.563 In.
1977 Oldsmobile Starfire L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1977 Pontiac Astre L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1977 Pontiac Sunbird L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1976 Chevrolet Vega 1 Required; 0.563 In.
1976 Oldsmobile Starfire L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1976 Pontiac Astre 1 Required; 0.563 In.
1976 Pontiac Sunbird L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1975 Chevrolet Monza L4 140 2.3L (2294cc) 1 Required; 0.563 In.
1975 Chevrolet Vega 1 Required; 0.563 In.
1975 Pontiac Astre 1 Required; 0.563 In.
1974 Chevrolet Vega 1 Required; 0.563 In.
1973 Chevrolet Vega 1 Required; 0.563 In.
1972 Chevrolet Vega 1 Required; 0.563 In.
1971 Chevrolet Vega 1 Required; 0.563 In.
1959 GMC PM151 V8 336 5.5L 2 Required; 0.563 In.
1959 GMC PM152 V8 336 5.5L 2 Required; 0.563 In.
1959 GMC PM153 V8 336 5.5L 2 Required; 0.563 In.
1959 GMC PM251 V8 336 5.5L 2 Required; 0.563 In.
1958 GMC PM151 V8 336 5.5L 2 Required; 0.563 In.
1958 GMC PM152 V8 336 5.5L 2 Required; 0.563 In.
1958 GMC PM251 V8 336 5.5L 2 Required; 0.563 In.
1958 GMC PM252 V8 336 5.5L 2 Required; 0.563 In.
1958 GMC PM253 V8 336 5.5L 2 Required; 0.563 In.
1957 GMC PM151 V8 347 5.7L 2 Required; 0.563 In.
1957 GMC PM152 V8 347 5.7L 2 Required; 0.563 In.
1957 GMC PM153 V8 347 5.7L 2 Required; 0.563 In.
1957 GMC Truck V8 347 5.7L (5687cc) 2 Required; 0.563 In.
1957 Pontiac Bonneville 2 Required; 0.563 In.
1957 Pontiac Catalina 2 Required; 0.563 In.
1957 Pontiac Chieftain 2 Required; 0.563 In.
1957 Pontiac Star Chief V8 347 5.7L 2 Required; 0.563 In.
1957 Pontiac Star Chief V8 347 5.7L (5687cc) 2 Required; 0.563 In.
1957 Pontiac Super Chief 2 Required; 0.563 In.
1956 GMC PM151 V8 317 5.2L 2 Required; 0.563 In.
1956 GMC PM251 V8 317 5.2L 2 Required; 0.563 In.
1956 Pontiac Catalina 2 Required; 0.563 In.
1956 Pontiac Chieftain 2 Required; 0.563 In.
1956 Pontiac Star Chief V8 316 5.2L 2 Required; 0.563 In.
1956 Pontiac Star Chief V8 316 5.2L (5179cc) 2 Required; 0.563 In.
1955 GMC Truck V8 288 4.7L (4720cc) 2 Required; 0.563 In.
1955 Pontiac Catalina 2 Required; 0.563 In.
1955 Pontiac Chieftain 2 Required; 0.563 In.
1955 Pontiac Star Chief V8 287 4.7L 2 Required; 0.563 In.
1955 Pontiac Star Chief V8 287 4.7L (4707cc) 2 Required; 0.563 In.

Product Specifications

Describe Type: Cup Type
Material: Steel
Maximum Diameter: 0.574 in
Minimum Diameter: 0.558 in
Package Contents: Expansion Plug
Packaging Type: Bag
Package Quantity: 1
Brand: Dorman - AutoGrade - Bagged

OE Numbers

DIRECT OE CROSS
1480819 GENERAL MOTORS
3462871 CHRYSLER
518026 GENERAL MOTORS
835560 GENERAL MOTORS