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Four-piece aluminum and rubber AC blockoff kit with couplers, nuts and sealing sleeves

AirSept

AirSept 76501 Rear AC Blockoff Kit 4 Piece 1/2 Inch OD

SKU CH-WY7Q-M2DAY

Four-piece blockoff kit seals rear A/C lines with aluminum bodies and rubber sleeves

  • TypeAccessories & Compressors
  • Aluminum and rubber construction resists corrosion
  • Four-piece kit terminates rear A/C lines completely
  • Coupler body, nuts, sleeves and anti-vibration rings included
  • Designed for A/C equipment, heater and transmission use
  • New condition ensures reliable sealing performance

Rear AC Blockoff Kit

The AirSept 76501 kit provides four line terminators designed to seal rear air-conditioning ports on automotive equipment, heaters and transmissions. Each piece combines an aluminum body with rubber sealing components for a secure mechanical closure. The package includes coupler bodies, nuts, sealing sleeves and anti-vibration tension rings. It is supplied new and ready for workshop use.

Automotive A/C service technicians

This kit suits technicians who need to blank off open 1/2 inch OD ports during component removal, leak testing or seasonal storage. The four-piece set allows multiple lines to be capped simultaneously. Shops that require metric-threaded caps, larger diameter fittings or integrated valve cores will not find those features here. Buyers needing a single-use disposable plug should also look elsewhere.

1/2 inch OD aluminum and rubber construction

The critical specification is the 1/2 inch outside-diameter sizing paired with an aluminum coupler body and rubber sealing sleeves. This combination determines whether the terminator matches the specific port geometry on the target vehicle or equipment. Verify the port diameter and thread profile before ordering to ensure a proper seal.

Highlights

  • Aluminum and rubber construction resists corrosion
  • Four-piece kit terminates rear A/C lines completely
  • Coupler body, nuts, sleeves and anti-vibration rings included
  • Designed for A/C equipment, heater and transmission use
  • New condition ensures reliable sealing performance

Specifications

BrandAIRSEPT
TypeAccessories & Compressors

Questions about this item

What does the 76501 kit do once installed in a real A/C system?

The four-piece kit terminates rear A/C lines by sealing the open ports with aluminium bodies, rubber sealing sleeves, nuts and anti-vibration tension rings, preventing refrigerant loss and contamination during service or component removal.

Which interface standard does the 1/2 inch OD connection follow, and what does that cap in practice?

The 1/2 inch outside-diameter sizing matches common automotive A/C line dimensions, capping the maximum line size that can be sealed without adapters and ensuring a direct press-fit onto standard tubing.

What physical clearance and mounting hardware are needed to fit the blockoff pieces?

Each blockoff measures 4-1/4 inches high by 2 inches wide by 3/8 inch OD, and the kit includes the coupler bodies, nuts, sealing sleeves and anti-vibration tension rings required for a bolt-on, tool-assisted installation.

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