OBD2 Female to Marine 6-pin Male Adapter It includes 4 male crimp

It includes 4 male crimp pins and 4 seals

Older heavy equipment use a J1708 commiunication standard to interface with test equipment and devices using a round 6-pin Deutsch connector

Most inexpensive OBD2 scanners only support passenger vehicles and light duty trucks

12607802 MEFI 5A

If you have the GM 16 pin OBDII style connector used on some 94-95 OBDI cars

OBD2 Female to Marine 6-pin Male Adapter It includes 4 male crimpCAN based Marine applications (MOBD) typically use a flat 6 pin diagnostic connector. This adapter allows a standard OBD2 style device to connect to the CAN and power lines of the Marine connector. Please be aware that most marine applications use a subset of the J1939 (heavy equipment) protocol. Most inexpensive OBD2 scanners only support passenger vehicles and light duty trucks. Check your scanner's capabilities before assuming this adapter will