American-Made Composite Racing Seat with High-Containment Shell and HANS-Compatible Shoulder Recess
The PRP AC4601-201 Kilo Composite Seat is a high-containment racing seat constructed in the USA with a rigid composite FRP shell, deep thigh bolsters, extended hip support, and large harness slots designed to accommodate comm lines, pumper hoses, and multi-point harnesses without cutting or modification. The AC4601-201 ships in a solid black color with mesh center and vinyl arm panels. The recessed shoulder area allows drivers to wear HANS devices and other neck restraint systems without pushing the head forward, making the Kilo suitable for sanctioned competition as well as performance street driving. Each seat ships with a thick injection-molded bottom cushion and high-density foam padding on the back and sides. Side mounts are required for installation and are sold separately.
Key Features
- Rigid composite FRP shell with high-containment sides, rib containment, and extended hip support
- Large harness slots accommodate comm lines, pumper hoses, and 4-6 point harnesses
- Recessed shoulder area allows use of HANS devices and other neck restraint systems
- Deep thigh bolsters and wide hip area fits drivers comfortably up to approximately a size 42 waist
- Sports mesh center panel with durable vinyl arm and band panels
- Thick injection-molded bottom cushion included
- High-density foam padding on back and sides
- Requires side mounts for installation (sold separately)
- 24-month warranty from PRP Seats
- Proudly made in America
Specifications
| Detail | Value |
|---|---|
| Part Number | AC4601-201 |
| Color | Black |
| Shell Material | Composite FRP (Fiberglass Reinforced Polymer) |
| Seat Type | High-Containment Racing Seat |
| Harness Slots | Large (fits comm lines and pumper hoses) |
| HANS Compatible | Yes (recessed shoulder area) |
| Waist Accommodation | Up to approx. size 42 |
| Cushion | Thick injection-molded bottom cushion included |
| Mounting | Side mounts required (sold separately) |
| Warranty | 24 Months |
| Country of Origin | USA |
| Prop 65 | WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
What’s Included
- 1 x PRP AC4601-201 Kilo Composite Seat
- Thick injection-molded bottom cushion
About PRP Seats
PRP Seats has been manufacturing performance seating in the USA for over 25 years. Based in Phoenix, Arizona, PRP produces seats, harnesses, and safety accessories for off-road racing, motorsport, and street performance applications. The Kilo Composite Seat is part of PRP’s high-containment racing line, engineered for demanding driving environments that require secure driver positioning and compatibility with modern safety equipment including HANS devices and multi-point harnesses.
Frequently Asked Questions
What is the PRP AC4601-201?
The PRP AC4601-201 is the Kilo Composite Racing Seat in solid black. It is a high-containment composite FRP racing seat manufactured in the USA, designed to accommodate HANS neck restraints, multi-point harnesses, and drivers up to approximately a size 42 waist. It requires side mounts for installation into a vehicle.
Does the AC4601-201 come with mounting hardware?
The seat does not include side mounts. Side mounts are required for installation and are sold separately. PRP offers a range of seat mount adapter kits compatible with the Kilo seat for various vehicle applications. Verify side mount compatibility with your specific vehicle before ordering.
Is the PRP Kilo seat HANS compatible?
Yes. The Kilo Composite Seat features a recessed shoulder area specifically designed to allow HANS devices and similar neck restraint systems to be worn without pushing the head forward or compromising the restraint geometry. This makes the seat suitable for competition use in series that require HANS or neck collar use.
What harnesses fit the PRP Kilo seat?
The Kilo Composite Seat has large harness slots sized to accommodate 4-point and 6-point race harnesses in combination with communications lines and pumper hoses through the same slots. The slot size is one of the key design advantages of the Kilo platform over seats with narrower harness openings.
What size driver fits the PRP AC4601-201?
PRP rates the Kilo Composite Seat to fit drivers comfortably up to approximately a size 42 waist. The seat features a wider hip area and wide shoulder section designed for larger drivers compared to narrower containment seats. A physical fit check before purchasing is recommended for drivers at the upper end of this range.
Is the AC4601-201 street legal?
The PRP Kilo Composite Seat is not specifically DOT or ECE certified as an OEM replacement seat. It is a performance racing seat intended for track use and off-road competition. Street legality and compatibility with factory seatbelt mounting points depends on the specific vehicle and local regulations. Consult your series technical rules and local laws before use on public roads.
What vehicles does the PRP AC4601-201 fit?
The PRP Kilo Composite Seat is a universal-fit racing seat. It can be installed in any vehicle that accepts side-mount seat rails compatible with the Kilo mounting configuration. PRP offers specific side-mount adapter kits for popular car platforms as well as Polaris and Can-Am UTV applications. The seat itself has no specific vehicle fitment restrictions.
Does the PRP Kilo seat include a warranty?
Yes. PRP Seats backs the Kilo Composite Seat with a 24-month warranty from the date of purchase. The warranty covers manufacturing defects. It does not cover damage from accidents, racing incidents, or improper installation. Register your seat on the PRP website after purchase to activate the warranty.
Installation Instructions
- Select the appropriate PRP side mount adapter kit for your specific vehicle floor rail configuration before installation.
- Remove the factory seat from the vehicle by unbolting from the floor rails. Disconnect any airbag, occupancy sensor, or heated seat wiring connectors before lifting the seat out.
- Install the PRP side mount adapter brackets to the vehicle floor rails per the mount kit instructions, torquing to specification.
- Set the Kilo Composite Seat onto the side mounts and align the mounting holes.
- Insert the mounting hardware and torque to PRP’s specified value for your mount kit.
- Route your harness straps through the seat harness slots before threading through the seat back and crotch points on your harness bar or chassis anchor points.
- Perform a fit check by sitting in the seat and confirming there is no interference with the steering wheel, dashboard, or roof before driving.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
