CSV 25 Handheld Concrete Vibrator
ECHO PAS-2620 powerhead. 9.9 lb dry. One hand, no cord, no backpack.
The CSV 25 puts consolidation where a backpack unit is more machine than the job needs. Curbs, sidewalks, footings, slabs and wet screeding. It runs on the ECHO PAS-2620 professional powerhead, weighs 9.9 lb dry, and drives Northrock heads from 1 in to 2 in through a 7-spline quick disconnect.
No cord to drag. No generator to park. No harness to wear.
- Tool-less lead-in coupler. Change shafts without tools.
- Vibration-reduction system. Less operator fatigue across a shift.
- Standard and pencil shafts. Pencil flexes into block cells and tight walls. Standard is stiffer for footings and slabs.
Technical Specifications
| Model | CSV 25 |
| Powerhead | ECHO PAS-2620, professional-grade 2-stroke |
| Displacement | 25.4 cc |
| Dry Weight | 9.9 lb |
| Fuel Capacity | 20.6 fl oz |
| Fuel Type | 2-Stroke Pre-Mix Required. Gasoline mixed with 2-stroke oil at the ratio in the ECHO operator's manual. Do not use straight unleaded gasoline. |
| Air Filtration | Two-stage |
| Coupler | Tool-less lead-in coupler |
| Drive System | 7-Spline Quick Disconnect |
| Vibrator Heads | 1", 1-1/4", 1-1/2" and 2" |
| Shaft Options | Pencil Shaft (25BY24): For tight walls/cells Standard Shaft (25CA24): For footings/slabs |
| Origin | Assembled in Bohemia, NY, USA |
System Note: The CSV 25 uses a specific 7-Spline connection. Ensure your replacement shafts match this drive type. Square drive shafts from backpack units will not fit.
⚠ Will My Shaft Fit?
The CSV 35 uses a specific 7-Spline Drive connection. Please check your existing equipment.
The Handheld Advantage
Professional powerhead, 9.9 lb dry, built for speed, mobility, and reliability.
ECHO PAS-2620 Powerhead
Powered by the ECHO PAS-2620, a 25.4 cc professional-grade powerhead built for daily commercial use. Two-stage air filtration for dusty work, a bellows-style fuel transfer system for reliable starting, and 9.9 lb dry weight.
7-Spline Quick Connect
Maximize uptime with a tool-less lead-in coupler and quick disconnect. The durable 7-spline drive ensures positive engagement while allowing you to swap shafts in seconds.
True Portability
No cords, no generators, and no heavy backpack. At 9.9 lb dry, the CSV 25 is balanced for single-operator use, making it ideal for curbs, footings, wet screeding, and tight spaces.
Less Vibration, Longer Days
The powerhead carries a vibration-reduction system that cuts what reaches the operator's hands, so the last pour of the day goes as well as the first.
Zero-Maintenance Heads
Work harder with less downtime. NorthRock vibrator heads are factory sealed in an oil bath, requiring absolutely no maintenance for the life of the head. Runs heads from 1" to 2".
Versatile Shaft Options
Adapt to any pour. Choose flexible Pencil Shafts (25BY24) for tight block cells or stiffer Standard Shafts (25CA24) for slabs and footings.
Built in Bohemia, NY
Assembled and supported in Bohemia, New York since 1992. When you call NorthRock for support, you speak to a product expert, not a voicemail box.
Parts & Compatibility Guide
Genuine replacement assemblies and fitment data for the CSV 25.
System Compatibility
7-Spline Quick Disconnect
The CSV 25 uses a 7-Spline Drive system designed for high-speed handheld operation. This is distinct from the square drive used on backpack units.
- Connection Type: 7-Spline (Star Shape).
- Locking Mechanism: Spring-pin quick disconnect.
- Coupler: Tool-less lead-in coupler on the ECHO PAS-2620 powerhead.
- Assembly: Shafts connect directly to the power unit without tools.
- Head range: 1", 1-1/4", 1-1/2" and 2".
⚠ Important Fitment Note
Do not attempt to use "Square Drive" shafts with this motor. They will not engage with the 7-spline coupler.
⚠ Fuel Requirement
The PAS-2620 is a 2-stroke powerhead. Run gasoline pre-mixed with 2-stroke oil at the ratio given in the ECHO operator's manual. Straight unleaded gasoline will damage the engine.
Complete Shaft Assemblies
Full replacement shaft assemblies (includes core, casing, and connection).
| Description | Part No. |
|---|---|
| Pencil Shaft Assembly Flexible; best for tight walls & cells. |
25BY24 |
| Standard Shaft Assembly Stiffer; best for footings & slabs. |
25CA24 |
Vibrator heads are sealed in a synthetic oil bath and require no maintenance. Re-lubricate the shaft inner core every 50 hours with a 1/16" coating of lithium grease.
Does the CSV 25 require mixed gas?
Yes. The PAS-2620 is a 2-stroke engine, so it runs on gasoline pre-mixed with 2-stroke engine oil at the ratio given in the ECHO operator's manual. Do not run straight unleaded gasoline in this unit.
How do I connect the shaft?
Align the splines, lift the spring pin, insert the adapter, and spin until the pin clicks to lock.
What maintenance is required?
Follow the ECHO service schedule for the powerhead, including air filter and spark plug.
Remove and re-lubricate the shaft inner core every 50 hours with a 1/16 in coating of lithium grease.
Vibrator heads are sealed in a synthetic oil bath and never require maintenance.
What shaft types are available?
Pencil Shaft (Part #25BY24): More flexible, designed for tight block wall cells.
Standard Shaft (Part #25CA24): Stiffer, designed for better poking control in footings and slabs.
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