The BTR Four Pole Cam Gear is a 3-bolt, 44-tooth steel camshaft gear built for GM LS2 and LS3 engines, designed as a direct cross-reference to GM part number 12586481. It uses a four-pole reluctor design and a natural steel finish, and is commonly used when converting a 1-bolt camshaft setup to a 3-bolt camshaft.
- Part Number: BTR86481 (cross-reference to GM 12586481)
- Application: GM LS2 / LS3 engines
- Bolt Pattern: 3-bolt
- Tooth Count: 44 tooth
- Design: Four-pole camshaft position sensor reluctor
- Material: Steel, natural finish
- Common Use: 1-bolt to 3-bolt camshaft conversions
FAQ
What engines is the BTR86481 cam gear designed for?
The BTR86481 four-pole cam gear is built for GM LS2 and LS3 engines and cross-references to GM part number 12586481.
What does "four pole" mean on this cam gear?
Four pole refers to the reluctor design used to trigger the camshaft position sensor signal, built into the 44-tooth steel gear.
Is this a 3-bolt cam gear?
Yes, the BTR86481 is a 3-bolt camshaft gear.
When would I need the BTR86481 cam gear?
This 3-bolt, four-pole gear is commonly used when converting a GM LS2/LS3 engine from a 1-bolt camshaft to a 3-bolt camshaft.

