Zenith 35-40 INAT accelerator pump piston [ZK857PP]

Zenith 35-40 INAT accelerator pump piston [ZK857PP]

These pistons (also known as pump plungers) are no longer available globally, and so we have decided to manufacture some ourselves.  They are extremely high quality brass and stainless steel products (no plastic), and can be provided with your choice of Viton or Leather pump cup.  They aren't cheap, but that's because they are not mass-produced.

As used in:

BMW 2500 manual & auto 1968-77

BMW 2800 manual & auto 1968-75

BMW 3.0 Sa; La manual & auto 1975-77

BMW 3.3 Sa; La; 1974-76

BMW 525 1974-75

BMW 528 1975-76

Mercedes 220SB;  2196cc. 1963-65

Mercedes 230S; 230/8; W114; 2306cc. 1965-76

Mercedes 250/8; 250/8C; W114; 2778cc. 1968-76

Mercedes 250S; W114; 1965-67

Mercedes 280S; 280SE; 2746cc. 1968 on

Holden Torana LX 4 cyl. 1900cc. 1976 

Holden Sunbird UC; 1897cc. All years

Opel 1897cc 1976-77