Your cart is empty
Start ShoppingHot Cams 7.48mm Hardened Valve Shims - 5-Pack Refill for Engine Kits
Fits your
May not fit your
Description
Upgrade your engine's performance with Hot Cams' precision-engineered 7.48mm valve shims. These hardened steel refills are designed to maintain perfect valve clearance, ensuring smooth operation and enhanced power delivery for your powersports vehicle.
Key Features
- 7.48mm Diameter: Perfectly sized for Hot Cams valve adjustment kits to ensure precise clearance settings.
- Hardened Steel Construction: Durable, wear-resistant material for long-lasting performance in high-stress engine environments.
- 5-Piece Refill Pack: Convenient single-thickness refill for maintaining your valve shim kits without excess waste.
- Precision Ground Surfaces: Ensures accurate valve seat alignment for optimal engine efficiency and responsiveness.
- Universal Compatibility: Designed specifically for Hot Cams valve adjustment kits, ideal for motorcycles, ATVs, and other powersports engines.
Why Choose This Product
These shims are essential for maintaining proper valve clearance, which directly impacts engine performance, fuel efficiency, and longevity. The hardened steel material resists deformation under heat and pressure, while the precision-ground surfaces ensure a perfect fit. With a 5-piece refill pack, you'll have the exact amount needed to keep your engine running smoothly without overbuying. Perfect for mechanics and DIY enthusiasts looking to maintain peak engine performance with trusted Hot Cams components.
Delivery
Checking availability...
Estimated arrival
Order within to ship today
Orders ship
Shipping to
Enter your ZIP code for delivery estimate
Price Match Guarantee
Found it cheaper?
Log in to submit a price match request.
Price
Quantity
Free Shipping $100+
14-Day Returns
Secure Checkout
Price Match
Complete the Build
This item
$8.99
In Cart
Upgrade your engine's performance with Hot Cams' precision-engineered 7.48mm valve shims. These hardened steel refills are designed to maintain perfect valve clearance, ensuring smooth operation and enhanced power delivery for your powersports vehicle.
Key Features
- 7.48mm Diameter: Perfectly sized for Hot Cams valve adjustment kits to ensure precise clearance settings.
- Hardened Steel Construction: Durable, wear-resistant material for long-lasting performance in high-stress engine environments.
- 5-Piece Refill Pack: Convenient single-thickness refill for maintaining your valve shim kits without excess waste.
- Precision Ground Surfaces: Ensures accurate valve seat alignment for optimal engine efficiency and responsiveness.
- Universal Compatibility: Designed specifically for Hot Cams valve adjustment kits, ideal for motorcycles, ATVs, and other powersports engines.
Why Choose This Product
These shims are essential for maintaining proper valve clearance, which directly impacts engine performance, fuel efficiency, and longevity. The hardened steel material resists deformation under heat and pressure, while the precision-ground surfaces ensure a perfect fit. With a 5-piece refill pack, you'll have the exact amount needed to keep your engine running smoothly without overbuying. Perfect for mechanics and DIY enthusiasts looking to maintain peak engine performance with trusted Hot Cams components.| SKU | GM6990CD15 |
|---|---|
| MPN | 5PK748210 |
| Brand | Hot Cams |
| Category | Engine |
0.0
0 reviews
0
Log in to write a review.
Reviews
No reviews yet. Be the first to review this product!
Featured Review
| Make | Model | Years |
|---|---|---|
| Various | Any engine using 7.48 mm valve shims | 1990-2025 |
Frequently Asked Questions
This is a refill pack for 7.48 mm diameter valve shims. Each 5PK748210 pack contains 5 pieces of one specific thickness used with Hot Cams 7.48 mm shim kits.
It will work on any engine that uses 7.48 mm diameter valve shims. Check your service manual or an OEM parts fiche to confirm your engine’s shim diameter before ordering.
No. You can use these refills by themselves as long as your engine uses 7.48 mm shims, but they are intended to replenish a Hot Cams 7.48 mm kit so you have dedicated slots in the tray for each size.
Yes. As long as the shim surfaces are clean, flat, and undamaged they can be reused. Do not use shims that are pitted, cupped, or scored.
Yes. They are direct replacements for OEM 7.48 mm bucket‑over‑shim valve shims, and can be mixed with OEM shims in the same engine.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 0 min
Tools Required
- Service manual for your specific vehicle
- Metric socket set
- Torque wrench
- Feeler gauges (metric)
- Magnetic pickup tool or small magnet
- Pick or small screwdriver
- Calipers or micrometer (for double‑checking shim thickness)
- Clean shop rags and parts tray
Pro Tips
- Lay out a labeled cardboard or diagram of your head (IN/EX, Cyl 1–4) and tape each removed shim in place so you always know where it came from.
- Measure every shim with a micrometer even if it is labeled; it confirms size and helps track wear.
- Always re‑check all valve clearances after rotating the engine two full revolutions by hand.
- Replace cam cover gasket and spark plug well seals if they are hard or cracked to prevent future leaks.
- Work on a clean bench and keep shims away from dirt; debris between shim and bucket can damage the cam and bucket.
Common Mistakes to Avoid
- Not confirming that the engine uses 7.48 mm diameter shims before purchase
- Mixing old and new shims without labeling locations and sizes
- Measuring valve clearance with a dirty or cold engine outside the specs recommended in the service manual
- Not rotating the engine correctly to ensure each cam lobe is on the base circle when checking clearance
- Failing to torque cam caps and cover bolts to spec, leading to damage or oil leaks
Comparison vs Stock/OEM
Functionally equivalent to OEM 7.48 mm valve shims, designed to the same diameter and similar hardness for bucket‑over‑shim valvetrain systems.
Improvements
- More economical than buying individual OEM shims
- Convenient packaging for refilling a kit and keeping sizes organized
- Easy to mix with existing Hot Cams or OEM shims
Considerations
- Does not include a storage tray – intended to refill an existing Hot Cams kit
- You must still measure and select the correct thicknesses; shims are sold in single‑thickness packs
Durability & Warranty
Expected Lifespan
Typically lasts multiple valve‑service intervals when used within normal RPM and maintenance limits; shims generally do not wear out quickly in properly maintained engines.
Warranty
Standard Hot Cams limited warranty as provided by the manufacturer (warranty details vary by region and retailer).
Maintenance
Inspect during each valve clearance service for pitting, cupping, or scoring; replace any damaged shims and keep shim surfaces clean during installation.
What Others Are Saying
Reviews from across the web
