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Genuine Stanadyne return line elbow connector, part number 16800, for Stanadyne / Roosa Master injection pumps with model numbers starting DBG, as used on John Deere 4020 tractors. The connector joins the fuel return line to the injection pump. It's also supplied on new Stanadyne replacement pumps for John Deere engines. Sold individually.
Key Features:
Specifications:
Compatibility / Fitment:
Fits Stanadyne / Roosa Master injection pumps with model numbers starting DBG using return line connector 16800, including John Deere 4020 tractors. It's also used on new Stanadyne replacement pumps for John Deere applications. Confirm your pump's model number from its nameplate before ordering.
Hard fitment gate — pump model: This connector is for pumps starting with DBG. It does not fit pumps starting with CBC or CDC. Stanadyne's DB2 and DB4 pumps use a different return line connector (Stanadyne 21251), and some DBG, DBM, DC, and JDB pumps use connector 15830. Match the part number from your pump's parts list.
Installation note: Use new sealing washers or O-rings where the connector seats, and keep dirt out of the pump while the connector is removed.
Conclusion:
A genuine Stanadyne 16800 return line elbow connector for Roosa Master DBG pumps, including John Deere 4020 tractors. It doesn't fit CBC or CDC pumps.