• Ronstan RF40171 Ronstan Series 40 Ball Bearing Block - Single Upright Lead
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Ronstan

Ronstan Series 40 Ball Bearing Block - Single Upright Lead

Ronstan Series 40 Ball Bearing Block - Single Upright Lead

70615

$66.94
$66.94
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Shipping calculated at checkout.

In stock
  • Genuine brand-name parts
  • Ships from US warehouse
  • 30-day returns

Series 40 Ball Bearing Block - Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Typically used for halyards at the mast base. Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load housing

Brand Ronstan
Manufacturer part number RF40171
UPC / GTIN 9316800244249
Weight 0.14 lb
Category Marine & Boating
Condition New — genuine brand-name product
Genuine brand-name product, full manufacturer warranty. Ships from the closest US warehouse — normally within 1–3 business days. Questions before you order? Send us the manufacturer part number above and we’ll confirm. 30-day returns on unused items.

Shipping & delivery

Orders ship from the distributor warehouse closest to you, normally within 1–3 business days of purchase. Standard ground delivery takes 3–7 business days in the continental US; expedited options are shown at checkout. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.

Returns & warranty

Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product and supplier, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Every product carries the full manufacturer warranty. Contact us with your order number to start a return.

Fitment & part numbers

Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.

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