Industrial Water Pump for Nissan TB42 Engines | Part 21010-03J25

Maintain critical engine cooling with this heavy-duty replacement water pump, specifically engineered for the Nissan TB42 engine. Part number 21010-03J25 (interchangeable with 21010-03J26 and 21010-03J00) is a vital component for preventing overheating in high-capacity material handling equipment. This pump is a standard fit for the Nissan J03, BF03, and F05 forklift series, as well as TCM FG35 and FG40 models.

Designed to meet or exceed original equipment standards, these pumps feature a metal impeller for superior durability and consistent coolant flow under heavy loads. Most units are provided as a complete kit with the mounting gasket, ensuring a leak-free seal and direct "bolt-on" installation. Regularly replacing your water pump is the best way to avoid catastrophic engine failure caused by heat stress in 4.2L inline-six engines.