American-Made Composite Racing Seat in Black and Gray with HANS-Compatible Shoulder Recess
The PRP AC4601-203 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 AC4601-203 ships in a black and gray color combination 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. 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 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 | AC4601-203 |
| Color | Black and Gray |
| 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 AC4601-203 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 requiring secure driver positioning and compatibility with HANS devices and multi-point harnesses.
Frequently Asked Questions
What is the PRP AC4601-203?
The PRP AC4601-203 is the Kilo Composite Racing Seat in a black and gray color combination. 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 AC4601-203 include mounting hardware?
No. Side mounts are required for installation and are sold separately. PRP offers seat mount adapter kits compatible with the Kilo seat for various vehicle applications. Confirm compatibility with your vehicle before ordering.
Is the PRP Kilo seat HANS compatible?
Yes. The Kilo Composite Seat features a recessed shoulder area designed to allow HANS devices and similar neck restraint systems to be worn without pushing the head forward. This makes the seat suitable for competition use in series requiring HANS or neck collar use.
What harnesses are compatible with the Kilo seat?
The large harness slots on the Kilo Composite Seat accept 4-point and 6-point race harnesses together with communications lines and pumper hoses through the same openings without modification to the seat shell.
What size driver fits the PRP AC4601-203?
PRP rates the Kilo to fit drivers comfortably up to approximately a size 42 waist. The wider hip and shoulder area is designed for larger-framed drivers compared to narrower high-containment seats.
Is the PRP AC4601-203 street legal?
The Kilo Composite Seat is a performance racing seat intended for track and off-road competition. Street legality and compatibility with factory seatbelt mounting points depends on the specific vehicle and local regulations.
What vehicles does the AC4601-203 fit?
The PRP Kilo Composite Seat is universal fit. It installs in any vehicle that accepts side-mount seat rails compatible with the Kilo mounting configuration. PRP makes specific side-mount adapter kits for popular car and UTV platforms.
What warranty does PRP include with the Kilo seat?
PRP Seats backs the Kilo Composite Seat with a 24-month warranty from the date of purchase covering manufacturing defects. Register your seat on the PRP website after purchase to activate warranty coverage.
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 and disconnect any airbag, occupancy sensor, or heated seat wiring connectors.
- 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 harness straps through the seat harness slots before anchoring to your harness bar or chassis anchor points.
- Perform a fit check before driving to confirm there is no interference with the steering wheel, dashboard, or roof.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
