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Start ShoppingHot Cams 5PK748320 Shim Package Refills - High-Quality Steel Engine Shims for Precision Fit
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Description
Upgrade your engine's performance with Hot Cams' premium steel shim refills. These precision-engineered shims deliver consistent compression and optimal power output for motorcycles, ATVs, and other powersports vehicles.
Key Features
- High-Quality Steel Construction: Durable, corrosion-resistant material for long-lasting performance
- Assorted Thickness Options: 20 shims in 0.05mm increments (1.20mm-3.20mm) for precise adjustments
- Standard 29mm Diameter: Universal fit for most engine applications
- Lightweight Design: Only 0.2 lbs per package for easy handling and storage
Why Choose This Product
Hot Cams' shim refills offer unmatched precision for engine tuning, ensuring optimal compression ratios and power delivery. The wide thickness range provides flexibility for various performance upgrades, while the steel construction guarantees durability under high-stress conditions. Perfect for mechanics and riders seeking reliable, high-performance engine solutions.
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Upgrade your engine's performance with Hot Cams' premium steel shim refills. These precision-engineered shims deliver consistent compression and optimal power output for motorcycles, ATVs, and other powersports vehicles.
Key Features
- High-Quality Steel Construction: Durable, corrosion-resistant material for long-lasting performance
- Assorted Thickness Options: 20 shims in 0.05mm increments (1.20mm-3.20mm) for precise adjustments
- Standard 29mm Diameter: Universal fit for most engine applications
- Lightweight Design: Only 0.2 lbs per package for easy handling and storage
Why Choose This Product
Hot Cams' shim refills offer unmatched precision for engine tuning, ensuring optimal compression ratios and power delivery. The wide thickness range provides flexibility for various performance upgrades, while the steel construction guarantees durability under high-stress conditions. Perfect for mechanics and riders seeking reliable, high-performance engine solutions.
| SKU | GM419394D1 |
|---|---|
| MPN | 5PK748320 |
| Brand | Hot Cams |
| Category | Engine |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Honda | CRF450R | 2009-2024 |
| Honda | CRF450RX | 2010-2024 |
| Honda | CRF450R Expert | 2009-2019 |
| Honda | CRF450RX | 2017-2024 |
| Honda | CRF450RL | 2020-2024 |
Frequently Asked Questions
20 shims ranging from 1.20mm to 3.20mm in 0.05mm increments (one of each thickness).
This is a refill package. Buy the full Hot Cams shim-under-bucket kit (like HCP-7483) first, then use these for replacements.
Intake: 0.18-0.22mm, Exhaust: 0.25-0.29mm (cold engine). Always check Hot Cams instructions for your cam stage.
Designed specifically for Honda CRF450 models listed in fitment. Check diameter compatibility (29mm outer).
Formula: New shim thickness = Measured shim + (measured clearance - target clearance). Use micrometer for accuracy.
Installation Guide
Difficulty
Medium
Est. Time
15 min
Tools Required
- micrometer or feeler gauge
- shim thickness chart
- magnetic shim tool
Pro Tips
- Use Hot Cams clearance spec sheet (0.18-0.22mm intake, 0.25-0.29mm exhaust)
- Measure each bucket/valve clearance twice
- Organize shims by thickness before starting
Common Mistakes to Avoid
- Incorrect measurement of clearance leading to wrong shim selection
- Not cleaning shims before installation
Comparison vs Stock/OEM
Same function as OEM shims but provided in convenient refill assortment for Hot Cams cam installs
Improvements
- Pre-sized assortment eliminates need to buy individual OEM shims
- Higher precision manufacturing tolerances
- Better value for frequent adjusters
Considerations
- Must use with Hot Cams specific clearances, not stock cam specs
Durability & Warranty
Expected Lifespan
Matches OEM - 20,000+ miles with proper adjustment
Warranty
1 year manufacturer defect warranty
Maintenance
Re-check clearances every 10-15 hours racing or 100 hours trail use
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