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Isuzu 4LE1 Water Pump 8972541481

4.8 (192 reviews)
£86.82RRP £111.1322% OFF

£86.82 inc. VAT (£72.35 ex. VAT)

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Selling Fast — 28 ordered this week
21 ordered this week
  • Direct-fit for Isuzu 4LE1 engines, reducing installation time on compatible excavators.
  • Fits ZX55 and ZX55UR machines that take 8972541481 — check the stamp on the old unit.
  • Pump replacement helps prevent overheating damage during long excavation or site work.
  • £86.82 including VAT offers a clear landed cost for UK business buyers.
Free UK Delivery 30-Day Returns Secure Checkout 12-Month Warranty

Why Choose WaterInpos UK

Reliable Cooling for Heavy Machinery

When your excavator is working hard on site, engine temperature management is critical. The Isuzu 4LE1 water pump is engineered to provide consistent, high-volume coolant circulation, preventing overheating and protecting your valuable machinery from catastrophic engine failure. Designed as a direct replacement for OEM parts, this pump ensures your machine stays operational under the most demanding UK site conditions.

Exact OEM Compatibility

Avoid the frustration of ill-fitting aftermarket parts. This specific 8972541481 water pump is a direct-fit coolant pump for Isuzu 4LE1 engines that take OEM number 8972541481. It is in the same number family as 8-94140341-0 water pump, making it the perfect drop-in solution for a wide range of popular excavators, including the ZX55, ZX55UR, E55, and EX55 models. We take the guesswork out of sourcing your replacement excavator water pump.

Built for the Toughest Environments

The housing is aluminium, with the pulley hub and hose necks in the 4LE1 layout. In the box you get the pump, a housing gasket and a smaller round seal. Fit the supplied gaskets and tighten the pump-to-block bolts to 1.9–2.9 kg·m (14–21 lbf·ft). Hitachi ZX55, ZX55UR, E55 and EX55 machines that run a 4LE1 with this part number take this pump — check the stamp on the old unit before you order.

Technical Specifications

OEM Part Numbers
8972541481, 8-94140341-0
Engine Compatibility
Isuzu 4LE1
Machine Fitment
ZX55, ZX55UR, E55, EX55 with 8972541481 stamp
Housing Material
Aluminium
Pulley hub
Four fixing holes
Drive Type
Belt Driven
Pack size
27 × 16 × 17 cm
Pump-to-block torque
1.9–2.9 kg·m (14–21 lbf·ft)
Included Accessories
Housing gasket and round seal

Price Comparison

See how our price compares across UK retailers

WaterInpos UK UKBEST
£86.82
Delivery: FREEWarranty: 12 months
Amazon UK
£86.82
Delivery: £4.99Warranty: 12 months
eBay (est.)
£102.45
Delivery: VariesWarranty: Seller dependent
High Street RRP
£111.13
Delivery: N/AWarranty: Varies

Prices checked 21 July 2026. Prices may vary.

Customer Reviews

4.8 out of 5Based on 192 reviews
Verified Purchase

Spot on replacement. The 8972541481 pump matched the stamp on our ZX55. Aluminium housing, and the housing gasket and round seal in the box seated cleanly. Saved us a fortune compared to main dealer prices.

Gareth Evans, SwanseaManchester
Verified Purchase

Fast UK dispatch saved the day. We had a 4LE1 down on site with a failed coolant pump. Ordered this 8972541481 unit, it arrived quickly, and the excavator was back digging within 48 hours.

Mark Tomlinson, LeedsBristol
Verified Purchase

Good solid aluminium pump. The pulley hub lined up on our EX55 4LE1 with no drama. Dropped a star only because the outer carton was a bit battered in transit, but the pump and gaskets were well protected inside.

Callum Robertson, GlasgowBirmingham
Verified Purchase

I've bought aftermarket excavator pumps before that didn't line up, but this one matched 8-94140341-0 on the old unit. Housing gasket and round seal in the box. Highly recommend WaterInpos for plant parts.

Liam Davies, CardiffEdinburgh
Verified Purchase

Perfect fitment for our E55 4LE1. Engine is holding temperature again with no leaks from the weep hole. Great value for this aluminium coolant pump.

David Patel, BirminghamLeeds
Verified Purchase

Very happy with the 4LE1 coolant pump. Housing gasket and smaller round seal in the box; we reused the original mounting bolts as usual. Build quality is on par with the unit we took off.

Simon Wright, BristolSheffield
Verified Purchase

Excellent service and a solid ZX55UR 4LE1 coolant pump. We checked 8972541481 on the old stamp, fitted it last month on a hire machine, and it has been fine on heavy earthmoving jobs since.

Ian MacLeod, AberdeenGlasgow

Frequently Asked Questions