Menu
Search
888.687.0539

Our offices are closed for Thanksgiving. Orders placed online will be processed on Monday 12/1/2025.

Our offices are closed for Thanksgiving. Orders placed online will be processed on Monday 12/1/2025.

Search by Part Number Close
Shopping cart Close

You have no items in your shopping cart.

Menu Close

Yanmar Water Pumps and Thermostats for 4LH Engines

Discover our wide inventory of Cooling System Components for 4LH Series Engines, including Water Pumps and Thermostats.

If you do not see the Yanmar part you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

YM-119000-42021
Hassle-Free Return Item

WATER PUMP GASKET - 4TN100 / 3TN100L / 4T112TL

$8.11

YM-119171-42004
Hassle-Free Return Item

FRESH WATER PUMP - 4LH

Use with YM-119000-42021 Gasket

$887.81

YM-119171-42540
Hassle-Free Return Item

SEA WATER PUMP IMPELLER PLATE - 4LH-DTZ / 4LH-HT / 4LHA-STE / 4LHA-DTE

Surplus Item - Special Pricing

$16.03

YM-119174-42502

RAW WATER PUMP - 4LH

$1,679.57

YM-119175-42500

RAW WATER PUMP - 4LHA-STP

$912.54

YM-119773-44071
Hassle-Free Return Item

WATER COOLER END GASKET - 6LP-DT / 6LP-DTZY / 6LP-STZY

$13.36

YM-120322-33050
Hassle-Free Return Item

FRESH WATER COOLER END GASKET - 3JH3E / 4JHE / 4JH45 / 4JH5E / 3JH4E

$11.91

YM-120672-42650
Restocking Fee Applies

IMPELLER KIT - 4LV150 / 4LV170 / 4LV195

$62.85

YM-123325-42021
Hassle-Free Return Item

IMPELLER - 4LH (RAW WATER PUMP)

$132.54

YM-127610-42270
Hassle-Free Return Item

IMPELLER - 4LHA / 4LH / 6BY / 6BY3 (RAW WATER PUMP)

$86.97

YM-129474-49030
Hassle-Free Return Item

SEA WATER COOLING PIPE - 4JH2-THE / 3JH3-TE

$54.11

888.687.0539 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
company information
Resources
Returns

Payment options

Complete your payment with a Visa card Complete your payment with a Master card Complete your payment with an American Express card Complete your payment using PayPal
Diesel Parts Direct BBB Business Review

Caterpillar® and all of the Caterpillar® engine models listed on this website are registered trademarks of Caterpillar, Inc. Cummins® and all of the Cummins® engine models listed on this website are registered trademarks of Cummins. Detroit Diesel® and all of the Detroit Diesel® engine models listed on this website are registered trademarks of Daimler AG. John Deere® and all of the John Deere® engine models listed on this website are registered trademarks of John Deere. Allison Transmission® and all of their transmission models listed on this website are registered trademarks of Allison Transmission®. Diesel Parts Direct is not an authorized dealer for Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission. None of the parts beginning with "DS" or "R" are genuine Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission items.

Copyright © 2025 Diesel Parts Direct. All rights reserved.
CID: 86714677