SBP Aluminum Overflow Tank Bottle Reservoir for Datsun 240z 260z 280z V2

Aluminum Radiator Overflow Tank – V2 (Fits Most Downflow Radiators in Classic Z Cars)

We’re excited to offer our V2 Aluminum Overflow Tank, designed to fit neatly within the mounting rib of most downflow-style aluminum radiators in classic Datsun/Nissan Z cars.

This tank was engineered for the Mishimoto MMRAD-DATS-70 radiator, but may also work with other radiators that share similar mounting specs.
Be sure to check your radiator’s center-to-center bolt spacing to confirm fitment.

Product Overview – V2 Design

The V2 Overflow Tank builds on the V1 design with a key upgrade:

• Includes a high-quality Vibrant Performance billet cap

• Two bottom-facing ports:

  • Port 1: Connects to the radiator cap overflow nipple

  • Port 2: Features an internal stand tube that functions as a breather and overflow limiter

• Designed specifically for left-hand (LH) side mounting only

• Bottom-facing ports allow for hidden hose routing and a clean installation

Specifications:

• Material: TIG-welded 6061 aluminum

• Capacity: 0.6L / 0.64 qt

• Ports: 2x 1/8” NPT female ports (bottom-facing)

• Cap: Vibrant Performance billet cap (included)

• Mounting Hardware: Includes 2x M6x1.0 hex head screws

  • Note: Longer screws may be required if using a fan shroud

• Tank Dimensions: 2″ x 2″ x 14.5″

• Mounting Bolt Spacing: 7-7/8″ (200mm center-to-center)

Features:

• Precision TIG-welded from 6061 aluminum for strength and corrosion resistance

• Upgraded Vibrant Performance cap for added durability and aesthetic appeal

• Internal stand tube in Port 2 acts as a breather and overflow control

• Clean, functional design with concealed hose routing

• Designed for direct fitment on the LH side of most downflow radiators

Additional Information:

• Proudly made to order in the USA – Production time: 5–10 business days

• Light surface scratches or cosmetic imperfections may be present due to the manufacturing process

Take your Z’s cooling system to the next level with the V2 Aluminum Overflow Tank — built for form and function with a premium look and feel under the hood.