#JPR-YM08IH2 JMP Marine Yanmar Replacement Engine Cooling Pump (Replaces Yanmar 128377-42500, Johnson 10-24509-02)



Condition: New

Availability: Usually ships within 1-10 business days from Mumbai, MH, India depending on stock availability

Shipping Within India (For all products):
1. Free shipping on order of ₹10,000/- or more
2. ₹499/- flat rate for orders between ₹5,000/- to ₹9,999/-
3. ₹299/- flat rate for orders below ₹5,000/-

GST: As applicable it will be automatically added during checkout

Weight: 6.00 LBS

SKU: JPR-YM08IH2 Category:


#JPR-YM08IH2 JMP Marine Yanmar Replacement Raw Water Engine Cooling Pump


JMP Yanmar Replacement Engine Cooling Pump #JPR-YM08IH2

Steel Pulley & Mounting Bracket


JPR-YM08IH2 is ONLY for 2GM or 3GM as per the cross-reference part numbers in product information below. This should NOT be confused with 2GMF or 3GMF models. If you have the 2GMF or 3GMF please refer to JPR-YM08IH and its cross-reference information. If still unsure please contact us with your question.

You must use JPR-YM08IH2 pump model to replace Yanmar 128377-42500 as there is a difference in revolutions per minute vs the JPR-YM08IH (Flow rate of JPR-YM08IH is greater vs JPR-YM08IH2) which some have thought is good for both this Yanmar number and 128397-42500 . . . this is not true. Use JPR-YM08IH2 to replace Yanmar 128377-42500.

What is the internal difference between JPR-YM08IH2 and model JPR-YM08IH?

The difference is the thickness of the machined “Cam” which is incorporated or part of the Body / Casing itself. The machined cam thickness is less (2mm) for JPR-YM08IH2 vs a larger thickness (4mm) found in the JPR-YM08IH. This is why it is very important to order the correct pump for your model of engine by referring the the cross-reference information provided.

Product Information:

Port Size (Inside Diameter)1/2" HOSE
Port Size (Outside Diameter) Approx 3/4" HOSE
Uses JMP Impeller p/n7050-01 (search 7050-01K)
Pump Size (LxWxH,mm)91 x 114 x 76
Pump Weight (approx)4.0 lbs (1.82 kgs)
Replaces Genuine Yanmar Pump p/n(s) Yanmar 128377-42500
Engine Model(s):2GM, 3GM
Replaces Johnson Pump p/n(s)Johnson 10-24509-02, F4B-902
Parts Internally Compatible to GenuineNO (Internal Changes made for better performance & Reliability)
Changes Made to PumpMechanical Seal, Ball Bearing, Shaft, Machined Steel Pulley (Washer & Nut Included)
Major Service Kit (All Internal Parts)
*Sold Separately
JSK0082 (For JPR-YM08IH2 Only)
Minor Service Kit
*Sold Separately
JSM0091 (For JPR-YM08IH2 Only)


  • Plug & Play Replacement
  • Simple & Compact Design (Less Parts)
  • Strong Bronze Body (Heavy Duty Marine Grade Casting)
  • High Performance and Long Life Flexible Impellers
  • Marine Grade Shaft (3X Series Non-Magnetic)
  • Mechanical Seal instead of Lip Seal
  • Heavy Duty Machined Steel Pulley
  • Cam-Less Design / Cam is machined in the Body Casing.

Please note that shipping cost calculations are based on packaged weight which can be higher than the actual product weight.


Possible discounts on total shipping costs for multiple unit orders; please contact sales department at sales@aefilters.com or by phone at (022) 23827442 for bulk order shipping quotes. Bulk orders are usually based on an order of 3 units or more.


Possible discounts on total shipping costs for multiple unit orders; please contact sales department at sales@aefilters.com or phone (022) 23827442 for bulk orders. Bulk orders usually based on 3 units or more.

1 Year Manufactures Warranty