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Quality — Made in Germany

88 01 400
KNIPEX Alligator® XL
Pipe Wrench and Water Pump Pliers

knurled gripping surfaces
  • The classic model, now also in 400 mm length
  • Robust construction, insensitive to dirt; particularly suitable for outdoor work
  • Good access to the workpiece due to slim size of head and joint area
  • Pinch guard prevents operators' fingers being pinched
  • Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping
  • Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required
  • Box-joint design for high stability due to double guide
  • Robust adjustment mechanism, insensitive to dirt, easy to clean; particularly suitable for outdoor work
  • 11-notch adjustment positioning with a gripping capacity up to 3 1/2", optimised adjustment to the workpiece and user-friendly handle position
Technical attributes
Article No.
88 01 400
black atramentized
with non-slip plastic coating
1,175 g
400 x 75 x 20 mm
DIN ISO 8976
REACH compliant
does not contain SVHC
RoHS compliant
not applicable
Adjustment positions
Capacity for pipes, inches (diameter)
Ø 3 1/2 Inch
Capacities for nuts
95 mm
Capacities for pipes (diameter)
Ø 90 mm

Energy-saving, tough and slim XL water pump pliers

Full torque on pipes and nuts thanks to self-locking effect

After it is pressed, the Knipex Alligator XL holds onto pipes and nuts under load by itself. This self-locking effect is possible thanks to the special jaw geometry developed by Knipex. The user does not need to press the handles together, but can convert all energy directly into torque. This property pays off in particular when loosening very large bolted connections (up to 95 mm wrench opening) that have become stuck.

Compact design and big gripping capacity

Plumbing and heating work is often performed in confined spaces. The arched adjustment slot and slim head shape of the Knipex Alligator are an advantage here. As compact as these pliers are, the possible grip widths are surprisingly large due to the 11-step locking adjustment: pipes up to 90 mm in diameter (3 ½ inches) and nuts up to 95 mm wrench opening.

In the XL version, the Knipex Alligator is particularly suitable for industrial assembly, for farms and for use on large construction vehicles and trucks.

Stable and wear-resistant – also when used outside

The Knipex Alligator with its box joint design and double guide offers very high stability for professional use. The teeth on the gripping surfaces have been induction hardened to approx. 61 HRC. This guarantees a very long tool life with an ever “biting” hold on the component. The Knipex Alligator XL is sturdily built, easy to clean and thus an ideal tool for working outdoors. The pliers are black and phosphate-treated. The head of the pliers has a precision finish. The handles of the pliers are coated with non-slip plastic.

Brief overview

Energy-saving XL water pump pliers for a secure grip

Self-locking effect on pipes and nuts thanks to special jaw geometry

Large grip width (up to 3 ½ inches / 90 mm and wrench opening 95 mm) with comparatively low weight (1190 g)

Gripping teeth induction hardened to approx. 61 HRC for a permanent, secure hold

High stability thanks to the box joint design

Protection from pinching due to forged closing limiter

Made from forged chrome vanadium electric steel

Black phosphate-treated

Knipex Alligator: several manufacturing steps for high tool quality

Professional users expect a tool quality that will last for many hard years of work. We develop and manufacture our pliers for the most demanding users imaginable: for craftsmen. Every pair of pliers from Knipex is manufactured to the highest standards using the best materials. A purchase for many years of use during assembly work, on the building site, in production and in the workshop.

Optimised adjustment to the component due to 11-stage locking adjustment

Self-locking grip of round components with a diameter of up to 90 mm

High gripping capacity: grips self-locking nuts and screws up to a diameter of 95 mm

Due to special jaw geometry, holds firmly with self-locking onto the component even under heavy load

Technical changes and errors reserved.