JE Pistons RM-Z 250 PRO SERIES Piston Kit
JE Pistons RM-Z 250 PRO SERIES Piston Kit
Description
JE Pistons RM-Z 250 PRO SERIES Piston Kit
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its range of Pro Series pistons. Pro Series® Piston kits feature purpose-built forging designs that reduce overall piston weight without sacrificing strength or durability. Internal and external strut braces significantly reduce stress on critical areas while ultra-flat ring grooves improve ring seal for better, sustained performance.
Features
- Engineered, forged and machined 100 percent in the USA
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Hand Deburred
- Je Pro Seal Rings Included
- Low Friction Skirt
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:04:38
Note for Pistons, Rings, Rotors, Rods and engine internals
Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.
(keyword: pistons)Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Specifications
Reference Information
| Reference Data (Provide these details to our support team) | |
|---|---|
| Brand Name/s | JE Pistons |
| StreetFX SKU | jep366827 |
| SFX Item ID | 4362420 |
| Accounting SKU | jep-366827 |
| Manufacturer SKU | 366827 |
| Manufacturer UPC | 193564219671 |
| Alternative References | 366827 |
| Manufacturer Attributes | |
|---|---|
| Add-On | 630-050-MW |
| Piston Volume | -1.70 |
| Top Compression Ring Thickness | 0.0320 |
| Oil Ring Thickness | 0.059 |
| Wrist Pin Wall Thickness | 0.140 |
| Wrist Pin Outer Diameter | 0.630 |
| Wrist Pin Length | 1.500 |
| Compression Ratio Actual | 14.00:1 |
| Piston Average Weight | 151 |
| Piston Material | 2618 |
| Bore Diameter | 77.00 |
| Piston Head Type | Dome |
| Product Type | Engine Piston Kit |
| Forging Type | FSR |
| Title | JE, Suzuki, 77.00 mm Bore, 1 Cyl. Kit |
| Title - Web | JE, Suzuki, 77.00 mm Bore, 1 Cyl. Kit |
| Product Market | Off-Road |
| Industry | Powersports |
| Category Hierarchy | Powersports>Pistons>Pro Series |
| Piston Series | Pro Series |
| Cylinder Head | RMZ 250 |
| Ring Set Included | Yes |
| Engine Type | ICE |
| Wrist Pin Material | 9310 Nickel Carbon Steel Alloy |
| Out of Stock Message | Please Allow Approximately 3 Weeks or Less for Shipping |
| Bore Diameter - Web | 77.00 MM |
| Manufacturer Designation | Piston Set, 2618, Dome, 3.032 Bore, 0.772 CD, 0.630 Pin, Set of 1. |
| Product Class | Engine Piston Kit |
| Construction/Type | JE, Suzuki, RM-Z 250 - Pro-Series, 14.50:1, 77.00 mm Bore, 1 Cyl. Piston Kit |
| Vehicle Designations | SUZUKI 19-21 RM-Z 250; PRO-SERIES |
| Product Outline | <ul><li>Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications</li><li>Race-inspired two-ring design promotes quick revving and throttle response for noticeable power</li><li>Designed specifically for each engine and use application to provide optimized performance durability</li><li>Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin</li><li>Includes high-quality wrist pins, locks, and JE Pro Seal premium piston rings</li><li>Made 100% in the USA</li></ul> |
| Vehicle Brief | JE Pistons, Piston Kit |
| Market Description | As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of Pro Series pistons for dirt bike and motorcycle engines. Engineered, forged and machined 100% in the USA, JE Pro Series pistons are designed for each specific engine and racing application with input from professional-level teams and racers. From motocross to off-road and everything in between, JE Pistons? Pro Series are the ultimate forged piston choice for motocross and off-road competition. |
Compatibility
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