Hastings Rings M8 107" 3.937 +010 Rings Only Hastings
Hastings

Hastings Rings M8 107" 3.937 +010

Sale price€73.90 Regular price€82.90
Save 11%
SKU: 09120961
AVAILABLE TO ORDER! Estimated dispatch within 3–5 weeks
Free EU shipping over €149
30-day returns on eligible items
Need fitment help? Contact our team

Replacement Piston Rings

  • Includes top compression rings, second compression rings, and oil control rings
  • Top compression rings are Barrel Face
  • Coated using PVD (Physical Vapor Deposition) process
  • Helps in the the heat transfer process between the piston and cylinder wall
  • Controls combustion chamber gases allowing the piston to transfer the energy of the expanding combustion gases, to the crankshaft
  • Second compression rings are Napier
  • Reverse twist ring along with a taper-machined ring face duplicates the OD bottom side scraping edge of a positive twist torsional ring
  • Promotes side sealing that prevents oil from being forced under and behind the ring resulting in better oil economy
  • Oil control rings are Three Piece Flex Vent
  • Three-piece design allows rails to be manufactured with a small cross sectional area for better conformability to bore
  • Provides uniform pressure through four steel rails and two expanders assuring positive oil control
  • Made in the USA
  • Includes enough rings for two pistons.
  • Two rings per groove, except for the rails that will be two rail rings per one expander ring.
  • Kit Includes:
    • 2x Top Compression Rings
    • 2x Second Compression Rings
    • 2x Expander Rings
    • 4x Steel Rails
    FAQ
    Shipping & Delivery

    The estimated dispatch time is displayed on each product page and depends on the product’s stock location:

    • In stock: dispatch within 1–3 business days
    • European stock: dispatch within 2–3 business days
    • USA stock: estimated dispatch within 3–5 weeks
    • Products with a specific lead time: estimated dispatch according to the timeframe displayed on the product page

    Once your order has been dispatched, you will receive a confirmation email with tracking information.

    Estimated carrier transit times are:

    • France: 1–5 business days
    • Most European destinations: 5–10 business days
    • Countries outside the European Union: delivery times may vary depending on the destination and customs clearance

    The dispatch estimate and carrier transit time are separate.

    Compatibility

    You can verify compatibility in two ways:

    • Use the vehicle selector on the product page to check whether the part matches your motorcycle.
    • Review the fitment table for the full list of compatible models and years.

    Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.

    Still unsure? Contact us with:

    • motorcycle make and model;
    • model year;
    • exact version or trim;
    • current modifications;
    • product reference or link.

    Our team will help you confirm compatibility before ordering.

    Returns & Exchanges

    Eligible items may be returned within 30 days of delivery.

    To be accepted, the item must be:

    • unused and uninstalled;
    • in its original condition;
    • returned with its original packaging, labels and accessories.

    Parts that have been installed, damaged or modified cannot be returned.

    Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.

    Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.

    Customs Duties & Taxes

    European Union

    Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.

    Countries outside the European Union

    Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.

    Payment Options

    We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.

    Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.

    Free EU shipping over 149€

    Free shipping is automatically applied to EU orders over €149.

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