SKU: 94684670671

1524 1994-2004 Land Rover Defender 90 Discovery water pump

Sale price$134.10 Regular price$149.00
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Description

1524 1994-2004 Land Rover Defender 90 Discovery water pumpIf you own a Land Rover with a 3. 9L, 4. 0L, 4. 2L or 4. 6L engine then you have probably have heard all of the reasons they overheat. Some blame the steel liners shifting within the aluminum block. Some blame combustion gases in the the coolant and or the crankcase system. Others point to micro cracks in the block, porosity in the block and a myriad of other reasons. One customer called us to say that he noticed the temperature rising at a low idle

If you own a Land Rover with a 3.9L, 4.0L, 4.2L or 4.6L engine then you have probably have heard all of the reasons they overheat. Some blame the steel liners shifting within the aluminum block.  Some blame combustion gases in the the coolant and/or the crankcase system.  Others point to micro-cracks in the block, porosity in the block and a myriad of other reasons.  One customer called us to say that he noticed the temperature rising at a low idle and he discovered our pumps as a possible solution.  Unfortunately we did not have an impeller for this pump but he has convinced us to develop a hi flow impeller to increase the coolant flow rates to help mitigate the temperatures. 

Flowkooler High Flow pump impeller are CNC machined billet aluminum designed with an increased vane count and a reduced plate-to-impeller clearance.  It achieves greater flow rates, higher head pressure and a more efficient flow. The impeller color is due to Type II Class II military grade surface coating which protects against corrosive fluids. 

Slow speed rock crawling means lower fluid flow and limited air flow.  A good radiator and a hi flow pump will keep your engine temperature down whether you're crawling in the hills near Birmingham or in the desert near Moab.

FlowKooler introduced the first hi flow pumps and continues to improve impeller design. Why is increased flow so important to cooling a hot engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.

  • Alternative Part Numbers STC1693, STC4378, STC4434, 571531, 512378, 571531, 252851, 1522002, AW9369, CWP9367, 160066693, 1312274, 98229, P9367, 181704, 1442001, 43522. 337059, HYT37059C, STC1693, STC4378, STC4434, 43522, 2727327, 38369, FP2486, T4176, US936 

From 0-3,300 RPM…Nothing Beats a FlowKooler!

Make Model Year Liters
1997 Land Rover Defender 90 4.0L
95-94 Land Rover Discovery 3.9L
02-96 Land Rover Discovery 4.0L
04-03 Land Rover Discovery 4.6L
00-95 Land Rover Range Rover 4.0L
93-95 Land Rover Range Rover 3.9L
93-95 Land Rover Range Rover 4.2L
02-96 Land Rover Range Rover 4.6L
Shipping Notes
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Exchange/Return Notes
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SKU: 94684670671

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4.5 ★★★★★
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D
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D
Port Orchard, US
★★★★★ 4
Great Filter - shipping needs to be improved
The air filter was great and would recommend the OEM filter. My only Complaint is that they didn’t ship it in a box but only slapped on a shipping label on to the original air filter box. It took about a week to get to me (Arizona) and the box looked really beat up and luckily the filter was still ok by the time it got to me. Recommend putting it in a box to protect it from damage.
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Reviewed in the United States on February 22, 2026
J
Verified Purchase
jamwantie chatoredussy
Belleville, US
★★★★★ 5
Sandy
Exact fit for my 2022 RX 350
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Reviewed in the United States on September 4, 2025
W
Verified Purchase
W. Zheng
Los Angeles, US
★★★★★ 5
Perfect fits
Ease of replacement. OEM quality.
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Reviewed in the United States on November 12, 2024
M
Verified Purchase
martha trevino
West Palm Beach, US
★★★★★ 5
he Gold Standard in Air Filters
This product works just as intended. K&N has been a leader in lifetime air filters for a long time, and their reputation for quality is well-deserved.
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Reviewed in the United States on August 12, 2025
A
Verified Purchase
Anwar
Charlottesville, US
★★★★★ 5
Good fit
Received in good condition. Yet to install. Will update the review after using
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Reviewed in the United States on February 12, 2026

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