Enkei - enk520-890-8400GM - RPT1 18x9 6x139.7 Matte Dark Gunmetallic Wheel

Enkei RPT1 wheels adapt Enkei's iconic Formula One-derived twin-spoke architecture to high-load truck, SUV, and 4x4 platforms. Engineered using Enkei’s MAT (Most Advanced Technology) flow-forming process, the RPT1 delivers the same legendary strength-to-weight advantages as the classic RPF1, but re-engineered with reinforced inner barrels and elevated load capacities to handle aggressive trail terrain, heavy payloads, and severe off-road articulation.

• Tested to Enkei’s Spec-E and JWL-T quality standards, demanding higher impact drop energy and 20% more rotational fatigue cycles than standard requirements
• Classic twin-spoke geometry distributes heavy radial and lateral stresses while providing generous clearance for large truck brake calipers
• Precision-machined center bore accepts hub-centric centering rings to eliminate high-speed chassis vibration and wheel stud fatigue
• Multi-stage protective surface treatment guards against trail debris, road salt corrosion, and severe brake dust accumulation
• High load-capacity engineering tailored specifically for 6-lug and 5-lug trucks, SUVs, and off-road builds

The Enkei RPT1 adapts Enkei’s Formula One-derived twin-spoke architecture for high-load truck, SUV, and 4x4 applications. Manufactured using Enkei’s MAT flow-forming process, the RPT1 features reinforced inner barrels and elevated load-capacity engineering for aggressive trail terrain, heavy payloads, and severe off-road articulation.

Key Features & Performance Benefits

• MAT Flow-Forming Construction: Delivers strength-to-weight advantages with reinforced inner barrels for demanding truck and off-road use.
• Twin-Spoke Geometry: Distributes radial and lateral stresses while providing generous clearance for large truck brake calipers.
• Spec-E and JWL-T Testing: Tested to standards requiring higher impact drop energy and 20% more rotational fatigue cycles than standard requirements.
• Protective Surface Treatment: Multi-stage finish helps guard against trail debris, road salt corrosion, and severe brake dust accumulation.

Key Product Specifications & Technical Data

• Brand: Enkei
• Wheel Model: RPT1
• Part Number: enk520-890-8400GM
• Wheel Diameter: 18 inches
• Wheel Width: 9 inches
• Bolt Pattern: 6x139.7
• Hub Bore Diameter: 108.50
• Offset: +0

What's Included in the Box

One Enkei RPT1 wheel.

Fitment

Engineered for 6-lug trucks, SUVs, and off-road builds. Specific vehicle fitment was not provided.

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1
Construction: Cast
Hub Bore Diameter: 108.50
Offset: +0
Bolt Pattern: 6x139.7
Wheel Diameter: 18.00
Finish: Gray
Wheel Model: RPT1
Wheel Width: 9.00