Will these valves replace original valves on a general pump model th3000?

No, I'm sorry but "K01" is not the right kit for a TH3000. You will need a "K134" for the TH3000 pump model. Thank you.

What is the height of the valve? What is the o-ring seat diameter? What is the overall diameter of the valve?

Height 15/16 of an inch seat diameter 11/16 Overall diameter 1". However if you can tell me what pump you are working on, I can tell you if it is the right Kit or not. Larry

Will it fit a cat pump 66dx?

Try 34262 SEAL KIT FOR CAT PUMP 66DX 6DX PRESSURE WASHER PUMP

What kit do i need for tx 1810

You will need valve kit K123 for a TX1810.

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Description

⚡ Upgrade your pump game with Italian precision — don’t get left behind!

COMPLETE PUMP REVIVAL - Includes 6 precision check valves and 6 durable O-rings to restore pump efficiency instantly.
ITALIAN CRAFTSMANSHIP - Manufactured in Italy, ensuring top-tier quality and reliability for professional-grade performance.
LIGHTWEIGHT COMPACT - At just 0.16 ounces and 9x7x1 inches, this kit is easy to store and handle without bulk.
UNIVERSAL COMPATIBILITY - Fits a wide range of General Pump and Interpump models—one kit, endless possibilities.
OE SPECIFICATION ASSURANCE - Meets original equipment standards for seamless integration and long-lasting durability.

The Pump Check Valves Kit 1 K01 Interpump is a premium OEM replacement kit made in Italy, featuring six check valves and six O-rings designed to service one pump. Compatible with a broad range of General Pump and Interpump models, this compact, lightweight kit meets OE specifications to ensure reliable, professional-grade pump performance and longevity.

Specifications

Brand	General Pump
Fit Type	Universal Fit
Vehicle Service Type	Universal Fit
Item dimensions L x W x H	9 x 7 x 1 inches
Material	Plastic
Item Weight	0.01 Pounds
Style	Check Valves Kit
Specification Met	OE
Auto Part Position	Rear
Outlet Connection Type	Barb
Body Material	Plastic
Inlet Connection Type	Hose Barb
Gas Type	Diesel
Mounting Type	Bung Mount
Operation Mode	Manual
Product Grade	New
Automotive Fit Type	Universal Fit
Manufacturer	General Pump
UPC	745528408937 709257512419
Item Weight	0.16 ounces
Product Dimensions	9 x 7 x 1 inches
Item model number	8.900-438.0
Is Discontinued By Manufacturer	No
Manufacturer Part Number	758-005

Reviews

J**N

Cheap for the part.

Cheap for the part. they fit right in and are easy to install. They work just like they should. They have held up well with daily use.

29.07.2025

M**Y

Works great

Easy repair for our pressure washer

26.01.2025

A**R

Great service

It was a great description and exactly what I needed.

10.07.2025

A**R

Incomplete set

Only came with three O rings, requires six. Reused some of the old ones.

13.01.2021

C**O

Do not buy/ will break instantly

Not even five minutes i had them on and they completely busted. Stay away. And not made in Italy

27.01.2025

D**E

Wrong size

Wrong size was advertised. The size stated from the chart was incorrect and was actually smaller. Whatever size you need size up which should give you the correct size.

1.08.2025

A**R

They Worked

These valves cured the problem on my old pressure washer pump (i.e. - no pressure). Now I need a new hose (i.e. - one problem/cure leads to another.)

10.09.2024

P**9

good quality

Exactly what I was looking for and fast ship

29.10.2021

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