Dorman

Dorman 565-034 Engine Expansion Plug - Rear

Brand Dorman 565-034
Position Rear
Describe Type Cup Type
Material Brass
Maximum Diameter 1.761
Minimum Diameter 1.751
Package Contents 10 Expansion Plug Brass
Fits Jeep · 4 vehicles

OE-style fit. Matches the original part's fit and function on specified vehicles.

Brass construction. Provides durable material choice for dependable engine sealing.

Cup type design. Engineered as an engine expansion plug for reliable performance.

Cross-references EPC-82-B for the same application. See all 1.

$53.94Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $53.94
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Dorman 565-034 Brass Engine Core Plug

Dorman 565-034 is a brass cup-type engine expansion plug made to match the fit and function of the original part on specified vehicles. It is built for rear engine core plug service on 1968-1971 Jeep CJ5 applications and uses a size range that supports a precise OE-style fit.

Key Features

  • Brass construction for engine cooling system service
  • Cup-type design for rear engine core plug applications
  • Maximum diameter: 1.761 in.; minimum diameter: 1.751 in.
  • Direct replacement format for specified Jeep CJ5 fitment
  • Cross-reference: EPC-82-B

Product Details

This engine expansion plug is engineered for rear placement on 1968-1971 Jeep CJ5 models. The brass material supports corrosion resistance in cooling system environments, while the cup-type profile helps it seat properly in the engine block opening. Dorman 565-034 is a practical choice when replacing a worn, leaking, or damaged core plug during engine cooling system repair. It is also a relevant search match for Jeep CJ5 rear engine core plug replacement, brass expansion plug, and OE-style engine block plug service.

For buyers comparing part numbers, Dorman 565-034 cross-references EPC-82-B for the same application. If you are sourcing a rear engine expansion plug for a 1968 Jeep CJ5, 1969 Jeep CJ5, 1970 Jeep CJ5, or 1971 Jeep CJ5, this part aligns with the listed fitment.

What It Helps Address

  • Coolant leakage from a deteriorated core plug
  • Corrosion-related failure in the engine block plug area
  • Improper sealing at the rear engine expansion plug location
  • Replacement needs during engine cooling system service

Installation Notes

Confirm the plug diameter and cup-type profile before installation. Clean the bore thoroughly, inspect the surrounding block surface for wear or pitting, and install according to the vehicle service procedure for rear engine core plug replacement. Verify fitment against the specific 1968-1971 Jeep CJ5 application before final assembly.

Quality Assurance

Dorman manufactures this expansion plug to match original part fit and function on the specified vehicles, using quality materials for reliable performance in engine service.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1971JeepCJ53.7LV6RearAssortment; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1970JeepCJ53.7LV6RearAssortment; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1969JeepCJ53.7LV6RearAssortment; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
1968JeepCJ53.7LV6RearAssortment; Package Quantity: 10; Dorman - AutoGrade - Boxed; Packaging Type: Box
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
EPC-82-B