Attributes

Brand	-
Category	Standard Parts, Components & Industrial Consumables / Couplings
Origin	-
Tooth Count	9-Tooth (Compatible with 7-Tooth systems)
Material	Hardened Alloy Steel
Application	Hydraulic Oil Pump Motor Rotor Shaft
Surface Finish	Precision Ground and Polished
Heat Treatment	Induction Hardened for Durability
Compatibility	VP Variable Displacement Pumps
Package Includes	1 x Spline Coupling Sleeve
Shipping Method	Free Standard Shipping
Origin	Manufactured in ISO Certified Facility
Warranty	12-Month Manufacturer Defect Warranty

6 reviews

Anonymous

Mar 29, 2026

Rating: 5/5

Precision engineered

You can tell this is made from high-quality alloy steel. The teeth are cut precisely with no burrs. Installation was smooth and the fit is tight.

Anonymous

Mar 22, 2026

Rating: 4/5

Good quality, fast shipping

The part arrived quickly thanks to the free shipping option. Material feels very sturdy and hardened. Took off one star only because the packaging was a bit minimal.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect fit for my hydraulic rebuild

I was worried about the compatibility between the 9-tooth and 7-tooth specs, but this sleeve fit perfectly on my VP variable pump rotor. The machining quality is excellent.

Anonymous

Mar 14, 2026

Rating: 5/5

Professional grade component

We use these in our shop for various hydraulic motor repairs. Consistent quality across multiple orders. The 9-tooth design is versatile for our needs.

Anonymous

Mar 08, 2026

Rating: 5/5

Saved my motor repair project

Hard to find specific spline sleeves locally. This 9-tooth coupling worked exactly as described for my oil pump motor. Highly recommend for industrial repairs.

Anonymous

Mar 01, 2026

Rating: 4/5

Solid replacement part

Works well as a replacement for worn-out rotor shafts. The heat treatment seems legitimate as it handles high torque without stripping. Good value.

5 FAQ

Q: Is this part suitable for high-pressure hydraulic applications?

A: Absolutely. The sleeve is made from induction-hardened alloy steel specifically to withstand the torque and pressure demands of hydraulic oil pumps.

Q: Do I need any special tools to install this coupling?

A: Standard mechanic tools are usually sufficient. However, we recommend using a hydraulic press or appropriate puller set to ensure the sleeve is seated evenly without damaging the splines.

Q: What is the exact outer diameter of the sleeve?

A: Please refer to the detailed technical diagram in the product images section, as diameters may vary slightly depending on the specific VP pump model series.

Q: Does the free shipping apply to international orders?

A: Free shipping is currently available for domestic orders. International shipping rates are calculated at checkout based on your location.

Q: Will this 9-tooth sleeve work on a pump that originally had a 7-tooth rotor?

A: Yes, this specific coupling is designed to be compatible with systems requiring either 9-tooth or 7-tooth spline connections, provided the shaft diameter matches.

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