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GZ-31-90 – ‘Quick fit’ gas feed, japan injector – Ø14 / Ø5 – 2 orings
GZ-11-90 A – ‘Quick fit’ gas feed, 4cyl KIT, japan injector – Ø14 / Ø6 – 2 orings
GZ-31-80 A – ‘Quick fit’ gas feed, 4cyl KIT, Bosch injector – Ø14 / Ø5
GZ-31-80 A/3 – “Quick fit” gas feed, Bosh injector – Ø14 / Ø5 – 1 oring – 3 cilinders
GZ-11-80 A/3 – “Quick fit” gas feed, Bosh injector – Ø14 / Ø6 – 1 oring – 3 cilinders
GZ-31-80 – ‘Quick fit’ gas feed, Bosch injector – Ø14 / Ø5
GZ-11-97 – ‘Quick fit’ gas feed – Ø14 / Ø5 – 32 mm