Johnson F4B-9 Engine Cooling Pump for Lister LPW3, Bukh DV10 DV20 DV24

Johnson 10-35241-1 F4B-9 flange mounted flexible impeller pump.

The Johnson 10-35241-1 is from the F4B family of pumps. It is designed to be flange mounted to the engine timing cover. Popular fitments for this Johnson pump include heat exchanger cooled Bukh DV 10 ME/SME, DV 20 ME/SME and DV 24 ME/SME engines, small Lister Petter LPW3 marine engines and Ruggerini MM351 engines.

Replacement impeller: JP-09-810B.

Ports are threaded 3/8" BSP female.

Johnson 10-35241-1 Spare Parts:

Position | Spare Parts | Part Number | Quantity

1 | Body | 01-35239 | 1

2 | Shaft | 01-45556 | 1

3 | Cam | 01-42389 | 1

4 | Gasket | 01-45284 | 1

5 | End Cover | 01-45282 | 1

6 | Impeller | 09-810B | 1

7 | Screw | 05-04-163 | 6

8 | Screw | 05-04-124 | 1

9 | Screw | 05-04-114 | 1

10 | Washer | 05-01-120 | 1

11 | Lip Seal | 05-29-139 | 2

12 | Ball Bearing | 05-08-503 | 2

13 | Retaining Ring | 05-34-131 | 1

14 | Clip | 01-43238 | 2

15 | O-Ring | 05-06-521 | 1

16 | Spacer | 01-46955 | 1

Technical Article - Raw Water Intake System

N/A (Not Applicable)

o Suitable For: Bukh
o Replacement Impeller: JP-09-810B
o Inlet Outlet: 3/8" BSP Female
o Brand: Johnson
o Series: F4B-9
o Model: 10-35241-1
o Mounting Description: Flange Mount