Stanadyne Transfer Pump Liner | 16753 | JDB DBG DC

Stanadyne (Roosa Master) transfer pump liner, part number 16753, for JDB, DBG, DBM, DBO, DCB, and DCM rotary diesel injection pumps. The liner is the ring the transfer pump blades ride in inside the pump's internal transfer pump. It's marked C (clockwise) and CC (counter-clockwise) and fits both rotation directions. It does not fit DB2 or DB4 pumps. Stanadyne is the original manufacturer of these fuel systems.

Key Features:

• Stanadyne transfer pump liner for JDB / DBG / DBM / DBO / DCB / DCM (Roosa Master) injection pumps
• The ring the transfer pump blades ride in — a worn or scored liner reduces transfer pressure and causes hard starting
• Marked C (clockwise) / CC (counter-clockwise) — fits both rotation directions
• Pairs with the 20511 transfer pump blades
• Genuine Stanadyne

Specifications:

• Base part number: 16753
• Component type: Transfer pump liner
• Rotation: bidirectional (marked C / CC)
• Manufacturer/system: Stanadyne / Roosa Master JDB / DBG / DBM / DBO / DCB / DCM rotary injection pump
• Fuel type: Diesel

Compatibility / Fitment:

• Stanadyne / Roosa Master pumps with model prefixes JDB, DBG, DBM, DBO, DCB, DCM
• Does NOT fit DB2, DB4, DM, DES, DS, CBC, or CDC pumps
• Install with the correct rotation letter (C or CC) facing out for your pump
• Send your complete pump model number if unsure before ordering

Conclusion:

The 16753 is a Stanadyne transfer pump liner for JDB, DBG, DBM, DBO, DCB, and DCM rotary injection pumps — the ring the transfer pump blades ride in. It's bidirectional (marked C/CC) and does not fit DB2/DB4 pumps. Confirm your pump model before ordering, and consider replacing the blades (20511) at the same time.