1. Car & Truck Engine Blocks Used-New Parts
  2. sku: 5321018808631771
  3. DORMAN XJ646ZN

XJ646ZN DORMAN Rear Expansion Plug Chevy Camaro

fits model: Camaro. make: Chevy. year: 1980–1981.

XJ646ZN DORMAN Rear Expansion Plug Chevy Camaro
Product Aspects
BrandDORMAN
Manufacturer Part NumberXJ646ZN
Part TypePLUG
Placement On VehicleREAR
Manufacturer Warranty12 MONTH WARRANTY
InfoENGINE CORE PLUG REAR
Years1980 1981 80 81
FitmentCHEVROLET CAMARO EXPANSION PLUG
Cs-sku400

Review DORMAN Rear Expansion Plug For Chevy for CHEVY CAMARO 1980–1981

Introducing the Dorman XJ646ZN Rear Expansion Plug, an essential component for the repair and maintenance of the fuel system in certain 1980 and 1981 Chevrolet Camaro models. This plug plays a crucial role in the fuel tank's expansion and contraction mechanism, allowing the fuel tank to expand when filled with gasoline and contract when empty.

The Dorman XJ646ZN is meticulously engineered to fit and function seamlessly in the specific fuel tanks of the designated Chevrolet Camaro years. The plug's body is made of high-quality materials that ensure durability and resistance to corrosion and wear. The O-ring seal included in the design guarantees a tight and leak-free connection between the fuel tank and the plug.

The Dorman XJ646ZN Rear Expansion Plug features a unique design with a hexagonal shape, making it easier for mechanics and DIY enthusiasts to install and remove it using standard tools. The plug's size is 1.0 inch in diameter and 1.375 inches in length, ensuring a precise fit in the designated fuel tank location.

Installing the Dorman XJ646ZN Rear Expansion Plug is a relatively straightforward process. First, the fuel tank must be drained and disconnected from the fuel lines. Next, the old expansion plug is removed, and the new Dorman plug is installed by hand, followed by tightening it with a wrench. Once installed, the fuel system can be reconnected, and the fuel tank can be refilled.

The Dorman XJ646ZN Rear Expansion Plug is an excellent choice for those seeking a reliable, functional, and affordable solution for fuel system repairs and maintenance on their 1980 and 1981 Chevrolet Camaro. With its precise fit, durability, and ease of installation, this expansion plug is an indispensable tool for any garage or workshop.

Dorman XJ646ZN Rear Expansion Plug for 1980-1981 Chevy Camaro: A Comprehensive Analysis

The Dorman XJ646ZN rear expansion plug is a popular aftermarket replacement for the OEM part in various vehicles, including 1980-1981 Chevy Camaros. This analysis aims to provide an unbiased assessment of the product, including its advantages, disadvantages, and a final recommendation.

Advantages of Dorman XJ646ZN Rear Expansion Plug:

1. Cost-effective: The Dorman XJ646ZN is often priced lower than the OEM alternative, making it an attractive choice for budget-conscious consumers.

2. High-quality materials: The plug is made from durable materials, which can ensure reliable performance and longevity.

3. Universal fit: The Dorman XJ646ZN is designed to fit a wide range of vehicles, not just 1980-1981 Chevy Camaros, making it a versatile purchase.

4. Easy installation: The plug is generally easy to install, requiring minimal tools and expertise.

Disadvantages of Dorman XJ646ZN Rear Expansion Plug:

1. Potential fitment issues: Some customers have reported issues with the plug fitting perfectly in their vehicles. In such cases, it may be necessary to modify the plug or the vehicle's mounting points.

2. Inferior sealing: A small number of users have noted that the Dorman XJ646ZN may not seal as effectively as the OEM part. This could potentially lead to leaks and decreased performance.

3. Lack of OEM warranty: The Dorman XJ646ZN does not come with the same level of warranty coverage as the OEM part, which may be a concern for some customers.

Final Recommendation:

The Dorman XJ646ZN rear expansion plug presents a compelling value proposition for those seeking an affordable alternative to the OEM part. Its durability, ease of installation, and cost savings make it an attractive choice for many. However, potential fitment issues and the possibility of inferior sealing may be cause for concern. Ultimately, it is essential to weigh these factors against the cost savings and determine whether the potential risks are worth accepting. For those who prioritize a perfect fit and maximum sealing performance, the OEM part may be a better choice. For others, the Dorman XJ646ZN is a reliable and cost-effective solution.

Details:

Fit notes: 1-1/8 - 1-1/4 28mm 31mm quick seal rubber as Re. Trustworthy quality - backed by team of product experts in the USA and more than a century automotive experience. Fit notes: 1-1/8 - 1-1/4 28mm 31mm quick seal rubber 4-Re. Ideal solution - this plug is a reliable replacement for an original part that missing or has failed due to fatigue.

Durable construction - this part is made from quality materials to ensure reliable performance and long service life.

specifications engineblocksam:

  • for models: Camaro
  • for makes: Chevy
  • for years: 1980–1981
  • brand: Dorman
  • mpn: Xj646zn
  • part type: Plug
  • placement on vehicle: Rear
  • manufacturer warranty: 12 Month Warranty
  • info: Engine Core Plug Rear
  • years: 1980 1981 80 81
  • fitment: Chevrolet Camaro Expansion Plug
  • cs-sku: 400

shipping engineblocksam:

  • carrier: fedex
  • class: standard
  • service: fedex ground or fedex home delivery
  • transit: 4-7 days
  • type: fixed

returns engineblocksam:

  • policy: returns accepted
  • paid by: buyer
  • time: 30 days

seller engineblocksam:

  • city: arlington, texas
  • # reviews: 90802
  • rating: 95.2%

general engineblocksam:

  • category: Auto Parts > Car Truck Accessories > Engines > Blocks

offer engineblocksam:

  • started: may 30, 2025
  • sold #: 18
  • price: $21.76
  • item condition: New
  • options: ship-to-home
  • in stock #: 1
  • availability: in stock

payments engineblocksam:

  • credit card: discover
  • wallet: paypal
  • other
rating: 95.2% out of 100 based on 802 user ratings.
Similar Items:
engineblocksam logo
1 offer $21.76 USD
  • New. USA Seller
© engineblocksam.com