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Start ShoppingCometic C9444 Evo Sportster Pushrod O-Ring Kit - High-Performance Engine Seals
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Description
Upgrade your motorcycle's engine performance with Cometic's precision-engineered pushrod O-ring kit. These high-quality seals are designed to maintain perfect compression and prevent leaks in critical engine components.
Key Features
- Premium Rubber Construction: Durable rubber compounds withstand extreme temperatures and pressures for long-lasting performance.
- Complete Set for One Engine: Includes all necessary O-rings for full engine top end sealing without guesswork.
- Engine Top End Application: Specifically engineered for pushrod tube sealing in high-performance motorcycle engines.
- Carded Packaging: Organized storage keeps components protected and easily accessible for maintenance.
Why Choose This Product
Cometic's C9444 kit delivers unmatched reliability for motorcycle enthusiasts. The precise fit and premium materials ensure optimal sealing, reducing the risk of compression leaks and engine damage. As a U.S.-made product, it meets strict quality standards while offering cost-effective performance compared to OEM alternatives. Ideal for riders seeking dependable, high-performance engine solutions without compromising on durability or ease of installation.
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Upgrade your motorcycle's engine performance with Cometic's precision-engineered pushrod O-ring kit. These high-quality seals are designed to maintain perfect compression and prevent leaks in critical engine components.
Key Features
- Premium Rubber Construction: Durable rubber compounds withstand extreme temperatures and pressures for long-lasting performance.
- Complete Set for One Engine: Includes all necessary O-rings for full engine top end sealing without guesswork.
- Engine Top End Application: Specifically engineered for pushrod tube sealing in high-performance motorcycle engines.
- Carded Packaging: Organized storage keeps components protected and easily accessible for maintenance.
Why Choose This Product
Cometic's C9444 kit delivers unmatched reliability for motorcycle enthusiasts. The precise fit and premium materials ensure optimal sealing, reducing the risk of compression leaks and engine damage. As a U.S.-made product, it meets strict quality standards while offering cost-effective performance compared to OEM alternatives. Ideal for riders seeking dependable, high-performance engine solutions without compromising on durability or ease of installation.| SKU | GM4915A514 |
|---|---|
| MPN | C9444 |
| Brand | Cometic |
| Category | Gaskets/Seals |
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Featured Review
| Make | Model | Years |
|---|---|---|
| Harley-Davidson | XL 883 Sportster | 1986-1990 |
| Harley-Davidson | XL 1100 Sportster | 1986-1990 |
Frequently Asked Questions
It is listed specifically for Evo Sportster models (e.g., late‑1980s XL 883/1100). Because Harley changed details of the top end and pushrod tubes over the years, always confirm against your OEM part numbers or a detailed fitment chart for your exact year and displacement.
This kit provides the O‑rings for the pushrod tube sealing points. If your base gaskets, rocker box gaskets, or pushrod tubes themselves are worn or damaged, you may need additional gaskets or parts to fully cure leaks.
On many Evo Sportsters, pushrod tube seals can be serviced with the rocker boxes and pushrods removed but heads left on, following the factory procedure. However, access and method vary by model and year, so consult your service manual.
No. Like OEM rubber seals, Cometic pushrod O‑rings are considered one‑time‑use parts. Replace them any time the pushrod tubes are disassembled.
O‑rings are designed to seal dry or with a light film of oil; sealant is usually not required and can even interfere with proper seating. Only use chemical sealants where specifically directed by the Harley‑Davidson service manual.
Installation Guide
Difficulty
Medium
Est. Time
1 hr 30 min
Tools Required
- Basic SAE hand tools
- Allen/hex keys for rocker box fasteners (varies by year)
- Torque wrench (inch‑lb and ft‑lb recommended)
- Pick or small screwdriver to remove old O‑rings
- Shop rags and brake cleaner or solvent for cleaning sealing surfaces
- Service manual for torque specs and sequence
Pro Tips
- Lightly coat new O‑rings with clean engine oil to help them seat without twisting or tearing.
- Replace all pushrod‑tube related O‑rings at the same time whenever the top end is open.
- Inspect pushrod tubes for dents, corrosion, or burrs; repair or replace damaged tubes to prevent cutting new seals.
- Work on one cylinder at a time to avoid mixing parts and to keep valve train order clear.
- Use the factory service manual for correct torque specs and tightening sequence to avoid warping rocker boxes.
Common Mistakes to Avoid
- Not fully seating the new O‑rings in their grooves, leading to oil leaks
- Reusing flattened or cracked old O‑rings instead of replacing all at once
- Pinching or cutting O‑rings during pushrod tube assembly
- Failing to clean oil and debris from sealing surfaces before reassembly
- Ignoring factory torque specs on rocker boxes and pushrod components
Comparison vs Stock/OEM
Functionally equivalent replacement for OEM Harley-Davidson pushrod tube O-rings on Evo Sportster models.
Improvements
- High-quality aftermarket rubber compounds from a performance gasket specialist (Cometic).
- Often sold as a convenient complete kit rather than purchasing individual OEM seals.
Considerations
- Does not change engine performance; benefit is reliability and leak prevention.
- Always verify fitment against OEM part numbers for your specific year and engine size.
Durability & Warranty
Expected Lifespan
Comparable to OEM pushrod O-rings when installed correctly and used in a properly maintained engine.
Warranty
Standard Cometic gasket warranty (terms vary by seller; check retailer or Cometic for specifics).
Maintenance
Inspect for leaks during routine oil changes. Replace O‑rings any time the pushrod tubes are disassembled or if oil seepage is observed at pushrod tube seals.
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