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#35 Pitch Heavy Duty 19-Tooth Idler/Tensioner Sprocket
2197-35 #35 Pitch Heavy Duty Idler/Tensioner Sprocket
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#35 Pitch Heavy Duty 19-Tooth Idler/Tensioner Sprocket

Part Number: 2197-35
Online Price: $14.95
2197-35 #35 Pitch 19-Tooth Heavy-Duty Idler/Tensioner Sprocket
Availability: Out of Stock.

Description

2197-35 #35 Pitch 19-Tooth Heavy-Duty Idler/Tensioner Sprocket


The 2197-35 Heavy-Duty Idler/Tensioner Sprocket is a 19-tooth sprocket engineered for #35 pitch chain systems. Originally designed to pair with the FCRP-4055 Chain Tensioner, this sprocket is also compatible with most custom or universal chain tensioner setups.


Outfitted with a precision brass bushing, the inner bore is reduced to accept a 3/8-16 x 2" bolt for easy mounting. All necessary hardware is included—bolt, washers, and a nylon lock nut—so you can install it right out of the box.


This idler sprocket ensures proper chain tension and alignment, especially when the clutch is disengaged or the engine is at idle. Unlike simple chain guides or rollers, this sprocket actively engages with the chain for improved tracking, reduced wear, and smoother operation—provided the alignment is correct with the drive and driven sprockets.


Key Features:

  • Tooth Count: 19
  • Chain Pitch: #35
  • Mounting: Includes brass bushing for 3/8-16 x 2" bolt
  • Hardware Included: Bolt, washers, and nylon locking nut
  • Material: Heavy-duty steel construction
  • Compatibility: FCRP-4055 and most custom chain tensioner assemblies


Benefits:

  • Maintains consistent chain tension and alignment
  • Reduces chain derailment and premature wear
  • Ideal for both performance and utility applications
  • More effective than standard rollers or guides


Best For:

  • Racing go-karts and mini bikes
  • Chain-driven lawn mowers
  • Custom or universal chain tensioners
  • Any #35 chain system requiring reliable tension control

FAQ

1. What type of chain is this sprocket designed for?

This sprocket is designed for #35 pitch roller chains, commonly used in go-karts, mini bikes, and small-engine drive systems.


2. What chain tensioners does this fit?

It is designed to work with the FCRP-4055 Chain Tensioner, but it can be used with most universal or custom-built chain tensioner systems that accommodate its specs.


3. What mounting hardware is included?

The sprocket includes a 3/8-16 x 2" bolt, washers, and a nylon lock nut, along with a brass bushing pre-installed to ensure secure, low-friction rotation.


4. Why use an idler sprocket instead of a chain roller or guide?

An idler sprocket actively engages the chain, providing better alignment and smoother tension than passive rollers or guides. It’s especially useful when the drive system is under minimal load, such as at idle.


5. Is this suitable for racing applications?

Yes. Its heavy-duty steel construction and precise alignment capabilities make it suitable for high-speed or racing go-karts and other performance-oriented builds using #35 chain.


6. Can I install this without any custom modifications?

In most cases, yes. As long as your tensioner setup supports a 3/8" mounting bolt and aligns properly with the chain path, it’s ready to bolt on using the included hardware.a

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