AP Racing R4 Radi-CAL Racing Brake Fluid
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AP Racing R4 Radi-CAL Racing Brake Fluid

R4 Radi-CAL™ By AP Racing Has The Highest Dry Boiling Point ( 644°F) Of Any Racing brake fluid currently available on the market today. This fluid is an even better lubricant than AP Racing PRF, itself a market leader.

 

$39.25 (tax incl.) $39.25 (tax excl.)
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FREE shipping on orders over $99.99* Details

AP Racing R4 Radi-CAL Racing Brake Fluid

R4 Radi-CAL™ By AP Racing has the highest dry Boiling Point ( 644°F) of any racing brake fluid currently available on the market today. This fluid is an even better lubricant than AP Racing PRF, itself a market leader.

'Typical' New Dry Boiling Point in excess of - 340°C / 644°F
'Wet' E.R. (Equilibrium Reflux) Boiling Point - 195°C / 383°F

AP Racing Radi-Cal Pro R4 Brake Fluid Details:

  • Manufacturer: AP Racing
  • Manufacturer part number: 15 601644
  • Dry Boiling Point: 340°C / 644°F
  • Wet Boiling Point: 195°C / 383°F
  • Bottle Size: 16.9 oz

R4 Radi-CAL™ Racing Brake Fluid has been designed to perform better than any other product at the extremes of heavy-duty braking performance in top levels of racing. With the highest dry boiling point of any racing brake fluid currently available, at 644°F, R4 stands alone. R4 has outstanding resistance to vapor lock/pedal fade under the most exacting conditions. A higher vapor lock point means a firmer brake pedal at the extremes of brake temperatures. Enhanced lubricity means this fluid is an even better lubricant than PRF660- itself a market leader. Note: R4 can be mixed with DOT3 and DOT4 racing brake fluids but for maximum product performance the brake system should be thoroughly purged with R4 fluid.

  • The highest dry boiling point of any racing brake fluid currently available on the market today- There is currently no other fluid that exceeds or matches the typical dry ERBP of AP Racing R4 fluid.
  • Outstanding resistance to vapor lock/pedal fade under the most exacting conditions- A higher vapor lock point means a firmer brake pedal at the extremes of brake temperature. Currently, no other fluid exceeds or matches R4.
  • Enhanced lubricity for low wear on all moving metal parts of the brake system-This fluid is an even better lubricant than AP Racing PRF, itself a market leader. Lubricity extends the life of the metal moving parts of the brake system and increases system efficiency.

AP-CP7005

Free Shipping 

Any order to the contiguous 48 states that is $100.00 or greater will receive FREE ground shipping . Not included are oversize items (some seats/fuel jugs) or if stated in the item description. 3 day, 2 day, overnight, and weekend overnight shipping are available. However, if your order qualifies for "Free Shipping" and you later return the item/items on that order for a refund, you must pay for the free shipping you received on that order before any refund will be issued. Return shipping is the responsibility of the buyer. If it is difficult for you to visit a shipping facility to arrange for return shipping, we will gladly send you a return label for your convenience. Return labels will be offered for a minimum of $20. The weight and size of the return will determine the final return price. Items must be returned to us new, unused, and in the original packaging. Shipping charges incurred on any order are non-refundable upon return of the item(s). Exemption: If product was opened but later deemed defective) If you have any questions, please call any member of our sales staff @ 1-888-748-RACE.

Alaska, Hawaii and any other delivery address beyond the 48 contiguous shipments will have additional shipping charges, We will contact you with pricing and delivery options.

Return Policy 

We want our customers to be safe and have the exact pieces they want. We know how hard it is to find the exact fit for your helmet, suit, gloves, shoes, etc. Our simple return and exchange options are below.

  • 1-30 Days after delivery to you: Full refund or Exchange
  • 30-45 Days after delivery to you: Exchange
  • 30-45 Days after delivery to you: Refund minus 15%
  • 45+ Days after delivery to you: No returns or exchanges allowed

Items must be returned to us new, unused, and in the original packaging. Products returned must include all original packaging and exterior box. (Exemption: If product was opened but later deemed defective. If an item is deemed to be defective within 30 days of purchase, DiscoveryParts will replace it with an identical item or a full store credit will be issued upon arrival of the return. Please make sure to thoroughly inspect the purchased product before using it and ensure the user of the product is familiar with the correct application and proper care)  If you have any questions, please call any member of our sales staff @ 1-888-748-RACE

*Please note: NOT ALL ITEMS ARE RETURNABLE. No returns or exchanges will be accepted on final closeout items. 

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