What is a 4-point wheelchair tie-down system?

A 4-point tie-down uses four retractors or straps — two at the front and two at the rear of the wheelchair — to secure the chair to the vehicle floor. When combined with a lap and shoulder belt for the occupant, it meets federal ADA and WC18 securement standards for paratransit, NEMT, and school bus transport.

Is wheelchair securement required by law?

Yes. The Americans with Disabilities Act (ADA) requires that all public transit vehicles equipped to transport wheelchair users must have an approved securement system. NEMT providers, paratransit operators, and school bus fleets are all subject to federal and state securement regulations. Failure to comply can result in fines and significant liability in the event of an accident.

What does WC18 compliant mean?

WC18 is the RESNA/ANSI standard that defines performance requirements for wheelchair tie-down and occupant restraint systems (WTORS). WC18-compliant products have been crash-tested to withstand higher load forces than previous standards, providing greater protection for wheelchair users in the event of a collision or sudden stop.

Which wheelchair securement brands do you carry?

We are an authorized dealer for Q'Straint, AMF Bruns, and Sure-Lok — the three leading manufacturers of wheelchair tie-down and occupant restraint systems worldwide. All products meet or exceed WC18 compliance standards where applicable.

What is the difference between an L-track and a Slide N' Click system?

L-track is a recessed floor channel that accepts fittings at any point along its length, giving installers maximum flexibility in retractor placement. Slide N' Click is Q'Straint's proprietary system using pre-set anchor points that allow faster, tool-free securement — popular in high-volume paratransit operations where speed of securement matters.

What is the difference between a manual and retractable wheelchair strap?

Manual straps are fixed-length webbing straps with a hook or loop connection — simple, affordable, and reliable. Retractable systems use a spring-loaded mechanism to automatically take up slack, making securement faster and reducing trip hazards from loose webbing. Electric retractors add powered retraction, ideal for operators or drivers with limited hand strength or mobility.

Do you offer fleet pricing for multiple vehicles?

Yes. We offer fleet pricing for operators outfitting five or more vehicles. Submit your vehicle count, vehicle type, and preferred brand through our Fleet Quote form and a specialist will respond within one business day.

Do your products come with installation instructions?

Yes. All products ship with manufacturer installation guides. We also maintain a full library of installation and user guides on our website for Q'Straint, AMF Bruns, and Sure-Lok products. Our specialists are also available by phone at 800.884.6456 if you need installation support at no charge.

FREE STANDARD SHIPPING ON ORDERS OVER $100 - 800.884.6456

Q'Straint INQLINE Securement + QRT-360 Retractors Q-84040 | Rear-Entry Wheelchair Boarding System

Q'Straint INQLINE Securement + QRT-360 Retractors Rear-Entry | Q-84040

Vendor: Q'Straint
Regular price: Sold out
Sale price: $0.00
Unit price: per

Shipping calculated at checkout.

INQLINE® SECUREMENT SYSTEM | Rear-Entry Winch & Retractor System with Integrated Front Tie-Downs qstraint.com/inqline ↗

INQLINE Securement — Choose Your Kit Level:

TIER 1

Base Kit (Q-84030)

TIER 2 — YOU ARE HERE

+ QRT-360 Retractors (Q-84040)

TIER 3

+ Install Kit (Q-84041)

TIER 4 — COMPLETE

Full System (Q-84043)

SKU: Q-84040 | VENDOR: Q'STRAINT

INQLINE® Securement + QRT-360 Retractors
With Occupant Lap/Shoulder Belt | Q-84040

✔ Free Shipping 🏆 ADA Compliant 💥 Crash Tested 30 mph / 20G ⭐ Includes QRT-360 + Belt

30 mph

Crash Tested

Force Rating

Webbing Freedom

2 Year

Warranty*

The Q-84040 pairs the INQLINE SECUREMENT system with QRT-360 rear tie-down retractors and an occupant lap/shoulder belt. The QRT-360 is Q'STRAINT's 360-degree webbing management retractor — designed for larger, more complex wheelchair configurations that require greater webbing flexibility and angle accommodation. If your fleet serves a diverse passenger mix with varied wheelchair sizes, the QRT-360 variant provides maximum versatility.

What's Added vs. Base Kit (Q-84030):

✚ QRT-360 Rear Retractors (×2) ✚ Occupant Lap/Shoulder Belt (×1)

Why Choose QRT-360 Over QRT Deluxe?

QRT Deluxe (Q-84039)

Standard single-angle retraction
Fast, straightforward operation
Ideal for fleets with consistent wheelchair types
Proven reliability at lower cost

QRT-360 (Q-84040) ← THIS PRODUCT

360° webbing rotation — any angle accommodated
Handles larger, wider, or non-standard wheelchairs
Reduces risk of webbing twist in tight vehicle spaces
Best choice for diverse passenger populations

Key Features

🕹️

Ergonomic Thumb Controller

Powered steering that guides any wheelchair safely up and down the ramp, giving the operator complete control regardless of the slope or surface.

🔄

QRT-360 Rear Tie-Downs

360-degree webbing guide accommodates any wheelchair from any angle — ideal for fleets serving large power chairs, large-framed manual chairs, or passengers with varied seating systems.

🔒

Integrated Front Tie-Downs

INQLINE's front winch units serve as front tie-downs simultaneously — eliminating the extra manual step that separate front securements require.

🦺

Occupant Belt Included

Lap/shoulder belt meets FMVSS 209 and ADA requirements for wheelchair-seated occupant restraint in transport vehicles.

🎛️

Wall Control Panel

2-button wall unit manages engage, release, and 'final squeeze' tensioning — keeping the operator focused on the passenger rather than on equipment controls.

📡

'Final Squeeze' Technology

Electronic sensors auto-calculate the correct securement tension — consistent, repeatable results every time, with no manual adjustment required by the operator.

What's Included — Q-84040

Qty	Component	Part #
INQLINE SECUREMENT Base Components
1	Main Controller, INQLINE	QS01093
1	Cable Harness, Splitter INQLINE	QS00140
2	INQLINE Hook Hanger	QS00202
1	LH SECUREMENT Cable Harness	QS00148
1	RH SECUREMENT Cable Harness	QS00149
1	Joy Stick Cable Harness	QS00143
1	Wall Unit, INQLINE	QS00156
1	Joy Stick, INQLINE	QS00157
1	INQLINE SECUREMENT, RH	Q840030
1	INQLINE SECUREMENT, LH	Q840031
Added in Q-84040
2	QRT-360 Retractor Assembled with SNC	Q011022
2	SLIDE-N-CLICK Bottom Assembly	Q8-7580-A
1	Lap/Shoulder Belt Combo	Q8-6323
1	Extension L/S Combo Belt	Q8-6340

⚠ Not Included: Floor mounting hardware and installation kit. For the complete ready-to-install package, see Q-84043.

Vehicle Applications

🚑 Non-Emergency Medical Transport (NEMT) 🚌 Paratransit / Community Transit 🚐 Wheelchair-Accessible Van (WAV) 🚐 Rear-Access Community Transport ♿ Diverse Wheelchair Populations

ℹ️ Entry Type: Rear-entry only. QRT-360 retractors are recommended when you serve passengers in large power chairs or non-standard seating configurations.

Standards & Compliance

ISO 10542-1Wheelchair Tie-Down & Occupant Restraint

RESNA WC-4 §18Wheelchair Securement Systems

FMVSS & CMVSS 209Seat Belt Assemblies

FMVSS 302Flammability of Interior Materials

CSA Z605Wheelchair Securement (Canada)

Fully ADA CompliantAmericans with Disabilities Act

🛡 Warranty: 2-year limited (registration required at qstraint.com). Without registration, 1-year limited applies.

⚠ California Prop 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See qstraint.com/prop-65

📄 Product Documents: INQLINE Securement Brochure | INQLINE System Data Sheet
INQLINE Securement Installation Manual (QC17027) | INQLINE Securement Use & Care Manual (QC17014)

Specifications

Specification	Detail
Brand	Q'Straint
SKU	Q-84040
System	INQLINE Securement + QRT-360 Retractors + Occupant Belt
Entry Type	Rear-Entry Only
System Weight	27 lbs.
Crash Test Rating	30 mph (48 kph) / 20G — Certified
Retractor Type	QRT-360 Automatic (360° webbing, rear tie-downs)
Occupant Belt	Lap/Shoulder Belt Included
Warranty	2-year limited (registration required); 1-year without
Installation	Professional installation required — hardware sold separately (see QS12054)