KPMI Cylinder Dowel 4-Pack - EVO Big Twin & Sportster
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
Achieve precise cylinder alignment during your next engine rebuild with KPMI cylinder dowels. Sold in a convenient 4-pack, these machined steel alignment pins are essential for ensuring your cylinders seat true to the crankcase. Their black oxide finish provides corrosion protection, making them a reliable choice for your EVO Big Twin or Sportster.
Why riders pick this
- Steel construction with black oxide finish
- 4-pack for complete top-end jobs
- Prevents cylinder misalignment
- Replaces worn OEM dowels
- Ensures true cylinder seating
When reassembling the top end of your Harley-Davidson engine, proper cylinder alignment is paramount to prevent galling, distortion, and potential leaks. KPMI cylinder dowels are precision-engineered to guide your cylinders into their correct position, ensuring a perfect seal and optimal engine performance. These dowels are a small but critical component that contributes significantly to the longevity and reliability of your V-twin.
Precision Alignment for Your Engine
- Durable steel construction with a protective black oxide finish
- Convenient 4-pack quantity for a complete top-end job
- Prevents cylinder misalignment during engine reassembly
- Ideal replacement for galled or distorted OEM dowels
- Ensures proper seating and sealing of cylinders to crankcase
Essential for a Successful Rebuild
Original cylinder dowels can often become damaged, galled, or distorted during engine disassembly, compromising their ability to properly align new cylinders. By using fresh KPMI cylinder dowels, you eliminate guesswork and ensure a clean, accurate fit. This 4-pack is specifically designed for EVO Big Twin engines from 1984-1999 and Sportster (XL) models from 1986-2014, making it an indispensable part of any top-end overhaul on these platforms.
Specifications
- Brand: KPMI
- Manufacturer Part #: 83070-4
- Quantity: 4 per pack
- Length: 1 in
- Weight: 0.08 lbs
Common questions
Why should I replace my cylinder dowels during a rebuild?
Original dowels can often become galled, scored, or distorted during removal. New KPMI dowels ensure clean, accurate cylinder seating, which is crucial for proper sealing and engine health.
How many dowels are included in this pack?
This KPMI product comes as a 4-pack, which is the correct quantity for one complete top-end rebuild on an EVO Big Twin or Sportster engine.
Will these dowels fit my Twin Cam engine?
No, these dowels are specifically for EVO Big Twin engines (1984-1999) and Sportster (XL) models (1986-2014). Twin Cam engines utilize different dowel specifications.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | KPMI |
| TYPE | Engine |
| SKU | 191-57087 |
| WEIGHT | 0.08 lb |
