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Start ShoppingVertex 808921 Complete Gasket Kit – Full Engine Rebuild (Top & Bottom End) | OEM-Style Gaskets & Seals
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Description
Rebuild your powersports engine with confidence using Vertex's complete gasket kit (part #808921). This comprehensive kit includes all critical gaskets and seals for top and bottom end repairs, ensuring a perfect OEM-style fit for your specific model. Ideal for engine tear-downs and rebuilds, this kit delivers reliable performance and long-lasting durability.
Key Features
- OEM-Style Composite Materials: High-quality gaskets and rubber O-rings replicate original equipment specifications for optimal sealing and performance.
- Complete Top & Bottom End Coverage: Includes base gasket, head gasket, valve cover gasket, clutch cover gasket, and more for full engine rebuild readiness.
- Application-Specific Components: Features water pump cover O-rings, exhaust gaskets, and ignition cover gasket for model-specific compatibility.
- Various Sealing Components: Contains small sealing washers, formed rubber/metal gaskets, and essential O-rings for all critical engine interfaces.
Why Choose This Product
Vertex's Complete Gasket Kit is engineered for precision and reliability, eliminating the need to source multiple parts separately. The OEM-style materials ensure seamless integration with your engine, reducing the risk of leaks and performance issues. Whether you're rebuilding a motorcycle, ATV, or UTV engine, this kit provides a cost-effective solution with professional-grade components. Its comprehensive contents save time and effort, making it the ideal choice for mechanics and DIY enthusiasts seeking a reliable, all-in-one gasket solution.
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Rebuild your powersports engine with confidence using Vertex's complete gasket kit (part #808921). This comprehensive kit includes all critical gaskets and seals for top and bottom end repairs, ensuring a perfect OEM-style fit for your specific model. Ideal for engine tear-downs and rebuilds, this kit delivers reliable performance and long-lasting durability.
Key Features
- OEM-Style Composite Materials: High-quality gaskets and rubber O-rings replicate original equipment specifications for optimal sealing and performance.
- Complete Top & Bottom End Coverage: Includes base gasket, head gasket, valve cover gasket, clutch cover gasket, and more for full engine rebuild readiness.
- Application-Specific Components: Features water pump cover O-rings, exhaust gaskets, and ignition cover gasket for model-specific compatibility.
- Various Sealing Components: Contains small sealing washers, formed rubber/metal gaskets, and essential O-rings for all critical engine interfaces.
Why Choose This Product
Vertex's Complete Gasket Kit is engineered for precision and reliability, eliminating the need to source multiple parts separately. The OEM-style materials ensure seamless integration with your engine, reducing the risk of leaks and performance issues. Whether you're rebuilding a motorcycle, ATV, or UTV engine, this kit provides a cost-effective solution with professional-grade components. Its comprehensive contents save time and effort, making it the ideal choice for mechanics and DIY enthusiasts seeking a reliable, all-in-one gasket solution.| SKU | GM30AB8D8C |
|---|---|
| MPN | 808921 |
| Brand | Vertex |
| Category | Gaskets/Seals |
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Frequently Asked Questions
It is marketed as a complete gasket kit and is intended to cover top and bottom end gaskets for one specific engine. However, some applications do not include oil seals or certain crush washers. Always check the kit contents against your OEM parts diagram before starting a rebuild.
Many Vertex complete gasket kits are gasket-and-O‑ring only and do not include crankshaft or transmission oil seals unless they are specifically listed as included. If you need seals, look for a 'complete gasket & seal kit' or purchase seals separately.
No. It is an aftermarket kit from Vertex designed to meet or exceed OEM sealing performance, but it is not a factory/OEM brand kit. It is built as a complete replacement for the OEM gaskets on the specified model.
If your engine has normal wear and sealing surfaces are flat and within spec, a careful home mechanic can usually install the kit with hand tools and a torque wrench. If the head or cylinder is warped, cracked, or heavily corroded, a machine shop may be required for resurfacing or repair.
No. Most gaskets and many O-rings are designed for one‑time use only. Reusing them can lead to leaks and engine damage. Plan on using a new gasket kit any time you fully tear down the engine.
Installation Guide
Difficulty
Hard
Est. Time
4 hr 0 min
Tools Required
- Metric socket set and ratchets
- Torque wrench (inch‑lb and ft‑lb recommended)
- Combination wrenches
- Screwdrivers (Phillips and flathead)
- Soft mallet / dead blow hammer
- Pry tools or plastic scrapers (for old gasket removal)
- Razor scraper or gasket removal pads (used carefully)
- Feeler gauges (for valve clearance if applicable)
- Engine stand or secure workbench setup
- Shop rags and brake cleaner or gasket remover spray
- OEM service manual or equivalent torque spec reference
Pro Tips
- Lay out all new gaskets and O-rings and compare to the old ones during teardown; label where each new piece goes.
- Photograph each stage of disassembly to help with routing hoses and harnesses on reassembly.
- Dry‑fit key gaskets (head and base) and confirm all oil and coolant passages line up before final assembly.
- Use a torque wrench and follow the manufacturer’s specified torque sequence and stages, especially on the cylinder head.
- Lightly oil O-rings and seal lips before installation to avoid nicks or pinching.
- After the first heat cycle, inspect for small oil or coolant seepage and re‑torque fasteners if the service manual calls for it.
Common Mistakes to Avoid
- Reusing old gaskets or O-rings instead of replacing them with those supplied in the kit
- Not thoroughly cleaning gasket surfaces, leaving old material that causes leaks
- Using excessive RTV/silicone where a dry gasket should be used, which can squeeze into oil passages
- Incorrect torque sequence or torque values on cylinder head and covers
- Installing gaskets backwards or misaligning oil and coolant passages
- Failing to check and correct warped head or cylinder sealing surfaces before reassembly
Comparison vs Stock/OEM
Designed as a direct replacement for OEM gaskets, typically matching OEM thickness and sealing performance while often being more cost‑effective.
Improvements
- Full kit format usually makes it easier and cheaper than buying individual OEM gaskets.
- Modern materials and manufacturing intended to meet or exceed OEM leak resistance.
- Includes many small O‑rings and cover gaskets that are easy to overlook when ordering OEM parts individually.
Considerations
- Some OEM kits may include specific crush washers or specialized seals that are not always included in aftermarket kits.
- For racing or high‑compression builds, you may need to confirm head gasket thickness vs OEM to maintain desired compression ratio.
Durability & Warranty
Expected Lifespan
Comparable to OEM gaskets when installed on correct, in‑spec surfaces and torqued properly; typically expected to last the full service life of a properly built engine between major overhauls.
Warranty
Vertex typically offers a limited warranty against defects in materials and workmanship; coverage and process vary by distributor/retailer.
Maintenance
No direct maintenance to the gaskets themselves; maintain correct oil level, coolant mixture, and operating temperature. Inspect for signs of oil or coolant leaks at major joints during regular service intervals.
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