John Gear Pumps

Dump Pumps

Welcome to John Gear Pumps, your source for high-quality replacement dump pumps. Our cast iron dump pumps are ideal for dump trucks and trailer application, offering durability and performace in even the most demanding environments.

C101 / C102

Our C101 and C102 fixed displacement gear pumps offer high performance and durability, thanks to their cast iron construction and integrated relief valve. These pumps, equipped with an integrated valve for raising and lowering dump beds, are ideal for the vocational and municipal equipment markets.

C101/C102

Remote and direct mount options
3 piece cast iron construction
Pressure balanced thrust plates
Heavy duty roller bearings
Two or Three line hook-up
Factory set relief pressure valve
39 & 48 GPM @ 1800 RPM
Pressure to 2500 PSI
Speeds to 2400 RPM
Approximate weight 71lbs

C Series direct mount

Part Number	Description	Shaft	Gear	Inlet	Pressure & Return Port
JGC102-LMS-20	Left hand rotation manual shift	7/8" - 13 Tooth	2"	1 1/4" NPT	1" NPT
JGC102-LMS-25	Left hand rotation manual shift	7/8" - 13 Tooth	2.5"	1 1/4" NPT	1" NPT
JGC102-LAS-25	Left hand rotation with air shift cylinder	7/8" - 13 Tooth	2.5"	1 1/4" NPT	1" NPT
JGC102-RMS-25	Right hand rotation manual shift	7/8" - 13 Tooth	2.5"	1 1/4" NPT	1" NPT
JGC102-RAS-25	Right hand rotation air shift	7/8" - 13 Tooth	2"	1 1/4" NPT	1" NPT

C Series remote mount

Part Number	Description	Shaft	Gear	Inlet	Pressure & Return Port
JGC101-XMS-20	Bi-rotation manual shift	1" Keyed	2"	1 1/4" NPT	1" NPT
JGC101-XMS-25	Bi-rotation manual shift	1" Keyed	2.5"	1 1/4" NPT	1" NPT

Mounting Bracket

314-0100-005 - FOR C101

Airshift Valve

AKC102-4 - C101/C102, Air shift kit, 4 bolt pattern

G101 / G102

Our G101 and G102 fixed displacement gear pumps offer high performance and durability, smaller cast iron bodies with integrated relief valve. These pumps, equipped with an integrated valve for raising and lowering dump beds, are ideal for the vocational and municipal equipment markets and small dump trucks.

G101/G102

Remote and direct mount options
3 piece cast iron construction
Pressure balanced thrust plates
Heavy duty roller bearings
2 or 4 bolt flange
Two or Three line hook-up
Factory set relief pressure valve
29 GPM @ 1800 RPM
Pressure to 2500 PSI
Speeds to 2400 RPM
More compact design
Approximate weight 43lbs

G Series direct mount

Part Number	Description	Shaft	Gear	Inlet	Pressure & Return Port
JGG102-LAS-20	Left hand rotation, with air shift direct mount, 4 bolt	7/8" - 13 Tooth	2"	1 1/4" NPT	3/4" NPT
JGG102-LMS-20	Left hand rotation, with manual shift direct mount, 4 bolt	7/8" - 13 Tooth	2"	1 1/4" NPT	3/4" NPT
JGG102-LMS-20-2B	Left hand rotation, with manual shift direct mount, 2 bolt	7/8" - 13 Tooth	2"	1 1/4" NPT	3/4" NPT
JGG102-RAS-20	Right hand rotation, with air shift direct mount, 4 bolt	7/8" - 13 Tooth	2"	1 1/4" NPT	3/4" NPT
JGG102-RMS-20	Right hand rotation, with manual shift direct mount, 4 bolt	7/8" - 13 Tooth	2"	1 1/4" NPT	3/4" NPT

G Series remote mount

Part Number	Description	Shaft	Gear	Inlet	Pressure & Return Port
JGG101-XMS-20	Bi-rotation manual shift	1" Keyed	2"	1 1/4" NPT	3/4" NPT

Airshift Valve

AKG102 - G101/G102, 2 bolt pattern

Aber Little Giant Dump Pump

Aber's PV series hydraulic gear pump with integrated valve solution are easy to mount and feature efficient cylinder protection and can operate at 3000 psi.

Little Giant by Aber

Two or Three line hook-up
Dual pressure available
27 GPM @ 1000 RPM
Pressure to 3000 PSI
Speeds to 2000 RPM
Compact design
Approximate weight 48.5lbs

G Series direct mount

Part Number	Description	Shaft	Cu.In.	Inlet	Pressure & Return Port
LG27DB4L2530N16	CCW, 4 Bolt B Flange, air shifted dual pressure 2500/3000psi	7/8" - 13 Tooth	6.2cir	1 1/4" NPT	1" NPT
LG27SD4R25N16	CW, 4 Bolt Flange, pneumatic control, 2500 psi	DIN 5462	6.2cir	1 1/4" NPT	1" NPT
LG27SB4R25N16	CW, 4 Bolt B Flange, pneumatic control, 2500 psi	7/8" - 13 Tooth	6.2cir	1 1/4" NPT	1" NPT
LG2727DD4R2530N16	CW, 4 Bolt B Flange, air shifted dual pressure 2500/3000psi	DIN 5462	2"	1 1/4" NPT	1" NPT