OEM PART NUMBERS:
• Nissan: 21010-FU400 / 21010FU400
• Nissan: 21010-FU425 / 21010FU425
• Nissan: 21010-FU40J
• Nissan: 91H20-02580 / 91H2002580
• Caterpillar: 8761949
• Caterpillar: 8772259
• Komatsu: 50459790
• Komatsu: 220024192
• D490720
• 88-252 / 88252 (if applicable)
SPECIFICATIONS:
• Mounting: 4-Bolt Pattern
• Height: 3.66" (93mm)
• Length: 5.59" (142mm)
• Gaskets: Included
• Condition: New
APPLICATION:
• Nissan Forklifts - K21 2.1L / K25 2.5L Engine
• Komatsu Forklifts - K21 2.1L / K25 2.5L Engine
• Caterpillar / Mitsubishi / Unicarriers Forklifts - K21/K25 Engine
Water Pump - Forklift K21 2.1L / K25 2.5L Inline-4 OHV Engine
New water pump for forklifts equipped with the Nissan K21 2.1-liter (2,065cc) and K25 2.5-liter (2,488cc) inline four-cylinder OHV gasoline and LPG engines. The K21 and K25 are among the most widely used forklift engines in the industry, powering models from Nissan, Komatsu, Caterpillar, Mitsubishi, and Unicarriers from approximately 2004 to present. The K21 features an 89mm (3.504") bore and 83mm (3.268") stroke, producing 46 to 60 HP depending on fuel delivery configuration. The K25 displaces 2,488cc (152 CID) for increased torque in higher-capacity forklift models. Both engines feature pushrod OHV valvetrains with aluminum cylinder heads and cast iron blocks, compatible with gasoline, LPG, and CNG fuel systems. 4-bolt mounting pattern with gaskets included. Pump height: 3.66" (93mm), length: 5.59" (142mm). Replaces Nissan 21010-FU400, 21010-FU425, Caterpillar 8761949, Komatsu 50459790, and all related OEM numbers.
⚠️ Verify OEM part number from your original unit before ordering to ensure proper fitment.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals such as Nickel which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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