Which pumps does this cylinder liner fit?

It is supplied for the APLEX SC-170L and SC-170DD pumps with a 4.00 inch bore. Confirm against your pump before ordering.

What is the bore size of this liner?

The liner has a 4.00 inch bore, as stated in the product name. No further material specifications are published here beyond the hardened chrome description in the name.

Economy Series Hardened Chrome Cylinder/Liner 4.00 Inch for APLEX SC-170L/SC-170DD

Economy Series Hardened Chrome Cylinder/Liner 4.00 Inch for APLEX SC-170L/SC-170DD — Other Pump Part aftermarket replacement part

This is an Economy Series hardened chrome cylinder liner with a 4.00 inch bore, supplied for the APLEX SC-170L and SC-170DD pumps. The cylinder liner is the replaceable bore in which the piston reciprocates and is a primary wear surface in the fluid end, matched here to the 4.00 inch bore size. It is an aftermarket replacement part referenced to SKU 303009 and weighs about 18.60 lb.

What it is

This is a replacement part for the listed reciprocating pump models, supplied to match the original component's form and fit.

Pump compatibility

Specifications

Property	Value
Weight	18.60 lb (≈ 8.44 kg, converted)
Width	6.50 in / 16.5 cm
Height	6.50 in / 16.5 cm
Depth	8.00 in / 20.3 cm

Manufacturer technical notes

Economy Series Hardened Chrome Cylinder/Liner 4.00 Inch (SKU 303009), bi-metallic design with HT250 cast iron outer + electroplated hard chrome (≥50μm thickness), surface hardness HV900-1100, compatible with APLEX SC-170L/SC-170DD mud pumps, tensile strength ≥250MPa, 40% cost reduction vs. monolithic Cr-Mo steel, 300h salt spray test corrosion-free, cost-effective replacement solution.

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing 303009.

FAQ

Which pumps does this cylinder liner fit?: It is supplied for the APLEX SC-170L and SC-170DD pumps with a 4.00 inch bore. Confirm against your pump before ordering.
What does the cylinder liner do?: It provides the replaceable bore in which the piston reciprocates and is a primary wear surface in the fluid end, matched to the pump's bore size.
What is the bore size of this liner?: The liner has a 4.00 inch bore, as stated in the product name. No further material specifications are published here beyond the hardened chrome description in the name.

Related parts

See all Other Pump Part →

All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

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