Dorman - Autograde Engine Core Plug 555-027
Dorman - Autograde Engine Core Plug 555-027 - view 2
Dorman - Autograde Engine Core Plug 555-027
Dorman - Autograde Engine Core Plug 555-027 - view 2

Rear Engine Core Plug for 1982-1985 Chevrolet S10 & More - Dorman 555-027

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$22.99
MPN: 555-027
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Dorman - Autograde Engine Core Plug P/N:555-027
Dorman - Autograde Engine Core Plug P/N:555-027
$22.99

Dorman 555-027 rear expansion plug for the 1982-1985 Chevrolet S10 and other vehicles is a steel cup that seals an opening in the engine.

  • Direct replacement for the original engine expansion plug on the vehicles it fits
  • Replaces an original plug that has gone missing or failed from fatigue
  • Steel cup-type plug, 1.5 to 1.514 in across
  • Part of the Dorman Autograde line

A failed plug can show up as a leak at its opening, or as a plug that has loosened or gone missing. These signs alone do not prove the plug is at fault, since a leaking gasket close by is another common cause.

The 1982-1985 Chevrolet S10, 1982-1985 GMC S15 and 1983-1984 Chevrolet S10 Blazer are among the vehicles it fits, and a 1982-1985 Chevrolet S10 takes one. Find your own car by year and model on the Buyer's Guide tab.

Specifications

Fit and size

  • Position: rear
  • Quantity per vehicle: 1
  • Nominal size: 1-1/2 in
  • Diameter: 1.5 in minimum, 1.514 in maximum
  • Height: 0.570 in

Build and materials

  • Type: cup type
  • Material: steel
  • Country of origin: China

In the box

One expansion plug.

Interchange: 260-180 · EPC133-25 · EPC30-25 · EPC-85 · EPC85-10
31566 · 94023985

This part cross-references / interchanges with the following part numbers:

31566, 94023985, 260-180, EPC133-25, EPC30-25, EPC-85, EPC85-10

Frequently Asked Questions

Does Dorman 555-027 fit the 1983-1984 Chevrolet S10 Blazer?

Yes. Dorman 555-027 fits the 1983-1984 Chevrolet S10 Blazer and the 1982-1985 GMC S15, one plug per vehicle. Other cars are on the Buyer's Guide tab.

Is the Dorman 555-027 a rubber expansion plug?

No. Dorman 555-027 is a steel cup-type expansion plug, 1-1/2 in nominal, so it is not a rubber plug.

Is this one of the Dorman freeze plugs in 3/8 or 11/16 size?

No. This plug is a 1-1/2 in size, 1.5 to 1.514 in across, so it is not a 3/8 or 11/16 size.

How many plugs come in the Dorman 555-027 package?

The Dorman 555-027 package contains one expansion plug.

Does Dorman 555-027 replace EPC85-10?

Yes. EPC85-10 is on the Interchange list for Dorman 555-027, along with 260-180 and 31566.

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