The M8 Spring and Retainer kit features our Beehive springs for a .530" max lift and increased valvetrain stability. The kit includes our Tool Steel retainers for increased strength and light weight.
CatalogUser 1This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2018 |
Harley-Davidson |
FLDE Deluxe 107 |
Base |
| 2018 |
Harley-Davidson |
FLFB Fat Boy 107 |
Base |
| 2018 |
Harley-Davidson |
FLFBS Fat Boy 114 |
Base |
| 2018 |
Harley-Davidson |
FLHC Heritage Classic 107 |
Base |
| 2018 |
Harley-Davidson |
FLHCS Heritage Classic 114 |
Base |
| 2017-2018 |
Harley-Davidson |
FLHR Road King |
Base |
| 2017-2018 |
Harley-Davidson |
FLHRXS Road King Special |
Base |
| 2017-2018 |
Harley-Davidson |
FLHTCU Electra Glide Ultra Classic |
Base |
| 2017-2018 |
Harley-Davidson |
FLHTCUTG Tri Glide Ultra |
Base |
| 2017-2018 |
Harley-Davidson |
FLHTK Ultra Limited |
Base |
| 2017-2018 |
Harley-Davidson |
FLHTKL Ultra Limited Low |
Base |
| 2017 |
Harley-Davidson |
FLHTKSE CVO Limited |
Base |
| 2017-2018 |
Harley-Davidson |
FLHX Street Glide |
Base |
| 2017-2018 |
Harley-Davidson |
FLHXS Street Glide Special |
Base |
| 2017 |
Harley-Davidson |
FLHXSE CVO Street Glide |
Base |
| 2017-2018 |
Harley-Davidson |
FLRT Freewheeler |
Base |
| 2018 |
Harley-Davidson |
FLSB Sport Glide 107 |
Base |
| 2018 |
Harley-Davidson |
FLSL Softail Slim 107 |
Base |
| 2017-2018 |
Harley-Davidson |
FLTRU Road Glide Ultra |
Base |
| 2017-2018 |
Harley-Davidson |
FLTRX Road Glide |
Base |
| 2017-2018 |
Harley-Davidson |
FLTRXS Road Glide Special |
Base |
| 2018 |
Harley-Davidson |
FXBB Street Bob 107 |
Base |
| 2018 |
Harley-Davidson |
FXBR Breakout 107 |
Base |
| 2018 |
Harley-Davidson |
FXBRS Breakout 114 |
Base |
| 2018 |
Harley-Davidson |
FXFB Fat Bob 107 |
Base |
| 2018 |
Harley-Davidson |
FXFBS Fat Bob 114 |
Base |
| 2018 |
Harley-Davidson |
FXLR Low Rider 107 |
Base |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Leveraging our massive supply chain, we secure hard-to-find components that other shops can't access. Whether it's a standard upgrade or a custom exotic application, we have the network to get it to your door.
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Contact Page.
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Direct Consultation:
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To qualify for our Fitment Guarantee, please email your vehicle’s Year, Make, Model, and any existing modifications to:
support@autohousesupply.com
Our experts will review your specifications and provide written confirmation for your build.
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For tracking updates or status inquiries on existing orders, please reach out via our Contact Form. Having your order number ready will allow us to provide the most efficient update.
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We proudly support builds across the US, Canada, Mexico, and worldwide. For international shipping quotes or oversized freight logistics, please contact us via the email link above.
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Secure Shipping:
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We offer FREE Ground Shipping within the 48 contiguous United States. Most in stock orders process within 48 hours. For your security, high value performance parts require a signature upon delivery to ensure they reach you safely.
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Transit Protection:
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Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
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Flexible Returns:
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Unused items in brand new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand new, untampered components, parts that have been installed, modified, or used are non returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Need assistance? Reach out via our
Contact Form before shipping any items back so we can provide you with an RMA number.
Fitment Guarantee
Fitment guides and tools are helpful, but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double check for you. We take the guesswork out of your purchase by standing behind our expertise.
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Verify Your Build:
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If this product doesn't list your specific vehicle data, simply reach out to support@autohousesupply.com. We will manually verify compatibility for you.
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Our Promise:
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When we confirm a fitment in writing and it doesn’t work for your application, we cover the return shipping and exchange it at no cost to you.
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Questions? Send us your
Year, Make, and Model via our
Contact Form and we’ll get you a definitive answer so you can buy with confidence.
