Identify Your Rowing Machine

General Identification

The WaterRower design has evolved in four basic steps (Series I, II, III and the S4). These design changes make spare parts identification a little more difficult.

All Series I WaterRowers were the original design. Made in the Rhode Island they are quite distinctive; the tabs above will help guide you through the distinctive characeristics.

Series I

The footboard was heart shaped, and the heel rest fixed. The footstrap was 2″ (50mm) wide and closed using Velcro.

The seat had a cut away at its rear to give clearance for the tail bone and was upholstered.

The forward riser had two pulleys at its top where the drive strap passed through.

The rear spacer was cylindrical, the double bungee was attached by a Velcro strap.

The Dolley Wheels had a central axle passing right through the machine. The dolley wheels themselves being 5″ (140mm) in diameter.

Series II WaterRower’s were manufactured in both the US and the UK (check the level gauge for the country of origin). Each location manufactured various versions of the rowing machine.

Series II

The US operation manufactured two basic designs of the rowing machine, the WaterRower Series II Model A and the WaterRower Series II Model B.

The WaterRower Series II Model A was the first redesign of the popular Series I and may be identified by the following characteristics.

Model A

The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard.(top right)

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of wood.

Typically the rowing machine was fitted with a workout computer which had more advanced functionality than just measuring time. Typically it measured speed in m/s. (bottom right)

The US operation manufactured two basic designs of the rowing machine, the WaterRower Series II Model A and the WaterRower Series II Model B.

The WaterRower Series II Model B was the model which sold widely through the Nordic Track organization and may be identified by the following characteristics:

Model B

The Footboard was two piece, the heel rest was fixed and the foot strap slid between the two footboard halves.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of steel.

Typically the rowing machine was fitted with a simple countdown timer.

The UK operation manufactured two basic designs of the rowing machine, the WaterRower Series II Model A and the WaterRower Series II Model C, they can be identified by the following characteristics:

Model A

The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of wood.

Typically the rowing machine was fitted with a workout computer which had more advanced functionality than just measuring time. Typically it measured speed in m/s.

Model C

The WaterRower Series II Model C was very similar to the Model A and may be identified by the following characteristics.

The Footboard was a single piece and both the heel rest and the foot strap were adjustable by a series of bolt holes in the footboard.

The bottom deck (connected to the tank) was a black plastic (Rigid Urethane Foam).

The WaterRower Series II Nordic Track may be identified by the following characteristics:

Model B

The Footboard was two piece, the heel rest was fixed and the foot strap slid between the two footboard halves.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of steel.

Series III

The US operation manufactured two basic designs of the rowing machine, the WaterRower Series III Worldwide Model and the WaterRower Series III (NordicTrack).

The WaterRower Series III Worldwide may be identified by the following characteristics:

Worldwide Model 

The Footboard is one piece, the heel rest is adjustable through a series of holes and the foot strap is adjustable by sliding in a groove.

The Key Brackets (the trapezoidal elements connecting the footboard, the top deck and the bottom deck) were made of steel. (image below)

The Monitor Backplate has two different versions, SIII V1 and SIII V2.

Version 1 (WRPC110) Housing has the RS232 port in the end of the spigot tube.

Version 2 (WRPC110) has RS232 D-Connector Port on the back of the housing.

Series IV

Series IV

The S4 WaterRower rowing machine is the same construction as the Series III but includes the S4 monitor.

Serial Number Locations

Includes current and legacy rowers.

Series 1

Etched onto the underside

Series II (US Rowing Machines)

The Series II WaterRowers manufactured in the US have their serial number imbedded in the level gauge sticker on the side of the tank.

Series II (UK Rowing Machines)

The Series II WaterRowers manufactured in the UK have their serial numbers on a silver adhesive sticker which should be located on the top deck (above the tank) opposite side of the computer.

Series III

The Series 3 WaterRowers manufactured in the US have their serial numbers on a silver adhesive sticker which should be located on the bottom deck (above the tank) below the computer.

Series IV

The S4 monitor serial number is located on a silver parabolic shaped label on the rear of the monitor. If the machine does not have a monitor it is located on the trapezoidal metal bracket behind the footboard on the right hand side of the machine.

A1, GX and Indo-Row®

Serial Number is located beneath the tank.

Frames Materials & Finishes

Includes Wood and Metal models.

M Series – Aluminum Powder Coated

Aluminum powder coated standard Silver, Black, or White; available in your choice of 6,000 custom colors for an additional cost.

S1 (limted edition) – Brushed Stainless Steel

Natural/Xeno Signature

Ash Wood with Honey Oak Stain, finished in Danish Oil

Club

Ash Wood with (two-tone) Rose/Black Stain, finished in Danish Oil

Classic

American Black Walnut finished in Danish Oil (Not Stained)

Oxbridge

Cherry Wood finished in Danish Oil (Not Stained)

A1 Home/IndoRow Home

Ash Wood with Danish Oil (Not Stained); Aluminum Monorail (Black powder coating)

A1 Studio/IndoRow Studio

Ash Wood with Honey Oak Stain, finished in Danish Oil; Aluminum Monorail (Black powder coating)

Clutch Identification

A critical component of all WaterRower models is the (sprag-style) clutch. It is the largest of the pulleys in the main tank assembly and connected directly to the handle strap (via bolt-on connection, velcro connection, or both).

Clutch designs and materials used have changed over the years as technology and manufacturing processes have evolved. The first clutches (WaterRower series 1 & 2) were all metal, about 3″ in diameter, and comprised of a bolt-on or bolt-on and velcro, handle strap attachment.

M1 models had the addition of the bolt/velcro from 2010, 2011 and 2012. M1 and S1 models changed over to the bolt on/plastic clutch in December 2012 through January 2013.

Up until approximately the beginning of 2013, on series 3 and series 4 all-wood models, machines had metal clutches and handles were attached with velcro only .

The new style Plastic Housing clutch was developed for A1/Indo-Row machines and was carried over to all S4 models (including all-wood) in 2013. It is identified most easily by the black plastic flange (or lip) on the top and bottom. It tends to retract faster than the metal clutch and this is a key feature for the upgrade.

The Indo-Row Studio had the bolt-on/velcro attachment in 2010 and 2011, transitioning to the newer plastic housing clutch with bolt-on handle in approximately July of 2011.