• A1321MAX Mackay Deemax Disc Rotor 12" Ventilated MAAX Coated 6-Stud | Marine Trailer Part
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A1321MAX Mackay Deemax Disc Rotor 12" Ventilated MAAX Coated 6-Stud | Marine Trailer Part

A1321MAX Mackay Deemax Disc Rotor 12" Ventilated MAAX Coated 6-Stud | Marine Trailer Part

$192.60 AUD
$192.60 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Mackay Marine Trailer Products DeeMaxx 12" Ventilated MAAX-Coated Slip-Over Rotor – Six Stud – Part Number: A1321MAX

A 12-inch ventilated DeeMaxx slip-over disc rotor with corrosion-resistant MAAX coating for compatible six-stud LandCruiser hubs. The ventilated construction improves heat dissipation during repeated braking.

⚙️ Key Features

  • Galvanised or corrosion-resistant marine-trailer construction
  • 6 stud × 139.7mm PCD wheel mounting pattern
  • Uses the separate compatible hub bearing system bearing configuration
  • Designed for compatible mechanical or hydraulic trailer braking where specified
  • Serviceable bearings, seals, dust cap and wheel studs

📏 Specifications

  • Wheel-size application: Heavy-duty LandCruiser-pattern wheels
  • Stud pattern: 6 stud × 139.7mm PCD
  • Bearing family: Uses the separate compatible hub bearing system
  • Rotor/hub specification: 12-inch ventilated slip-over rotor; approximately 23mm thick, 93mm centre bore
  • Published application rating: matching DeeMaxx heavy-duty brake system
  • Brake application: Hydraulic or compatible mechanical DeeMaxx disc caliper
  • Wheel studs, bearing preload, seal and caliper alignment must follow the component specification
  • Rotor hat height, centre bore and caliper bracket must match the installed DeeMaxx system

📋 Supplied Components

  • 1 × DeeMaxx MAAX-coated ventilated slip-over rotor

🔄 Cross Reference & Related Parts

  • Stainless-steel version: DeeMaxx RTR-120-SS-6 family
  • Compatible hub family: Mackay A1316G

🚤 Compatibility & Application

  • Confirm wheel stud PCD, centre bore, bearing journals, seal surface and axle-nut thread
  • Brake rotor thickness and offset must match the caliper and mounting bracket
  • The complete running-gear capacity is limited by the lowest-rated axle, bearings, hub, wheel, tyre, brakes and suspension
  • Set bearing preload and wheel-nut torque correctly after installation
  • Flush and inspect regularly after saltwater immersion

🔌 Function

Supports the trailer wheel on tapered roller bearings and, on disc-hub versions, provides the friction rotor used by the brake caliper.

⚠️ Common Signs of Failure

  • Bearing noise, heat or excessive wheel play
  • Rotor is scored, cracked, warped or below minimum thickness
  • Stud holes or wheel studs are damaged
  • Seal leakage or water-contaminated grease
  • Hub or rotor has excessive runout

📦 Condition

  • Genuine Mackay Marine Trailer Products part
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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