Stay comfortable through long shifts with the Uni Pro 502 Air Suspension Seat Kit. Built for Caterpillar construction equipment and John Deere dozers using a 15" mounting pattern, this premium seat features rugged multi-gray fabric, an integrated 12 V air suspension with compressor, and a generous 4.92" vertical stroke for superior ride control. From vibration damping to lumbar comfort, this kit delivers operator support when it matters most.
Technical Features
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Durable multi-gray fabric for extended usability
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Heavy-duty air suspension with built-in 12 V compressor
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Generous 4.92" suspension stroke for cushioning rough terrain
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Adjustable backrest and built-in lumbar support for ergonomic posture
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2.4" seat height/tilt adjustment for fit customization
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Weight adjustment from 176 to 330 lb for tailored support
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Manual air valve for easy ride tuning
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Slide rails offering 7.9" fore-aft travel in 0.39" increments
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Protective suspension cover keeps components clean
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Meets rigorous safety and vibration standards (ISO 7096, ISO 6683, SAE J386, ISO 3776, EM1–EM8)
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Complete kit includes: Uni Pro 502 seat, CAT411 adapter plate, mounting hardware, and installation instructions
Applications / Fitment
Ideal for direct fit in a wide range of heavy-duty machinery with 15" mounting pattern, including Caterpillar articulated dump trucks, dozers, excavators, motor graders, scrapers, wheel loaders, and John Deere dozers.
FAQs
Q: What is the suspension stroke on this seat?
A: It offers a 4.92" vertical suspension stroke for effective vibration absorption.
Q: Are adjustment controls included?
A: Yes—you get a manual air valve, height/tilt adjustment, weight setting, and slide rails for ergonomic customization.
Q: Does the kit include everything needed for installation?
A: Yes—it comes with the seat, adapter plate, hardware, and step-by-step instructions.
Delivery
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Shipping & Delivery Information:Thank you for choosing Homesteading Shop! We're committed to delivering your orders promptly and reliably. Here's what you can expect:Shipping Cost: Free shipping within the USA on all orders.Order Cut-Off Time: Orders placed by 6:00 PM EST, Monday to Friday, begin processing same or next business day.Order Processing Time: 1–2 business days.Delivery Timeframe: Usually 4–7 business days after dispatch.Freight Shipping: Large items shipped by freight. We'll schedule curbside delivery. Make sure your phone number is correct.Order Confirmation & Tracking: Confirmation email on order placement and shipping with tracking info.Address Changes: Contact us within 24 hours of ordering.Cancellations: Possible before shipping. See Refund Policy after.Damaged/Incorrect Orders: Inspect on delivery and contact us immediately.Questions? (817) 934-7315 | support@homesteadingshop.com
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Price Match Guarantee:
Best Price Assurance: If you find a lower price at an authorized retailer, we’ll match or beat it.
Exclusions: Price matches exclude promotional offers (e.g., rebates, buy-one-get-one-free), and auction/discount sites (e.g., eBay).
Eligibility: The competitor must be an authorized retailer, and price match calculation includes the item price, tax, and shipping costs.
Limitations: Price matches do not apply to exchanges or replacements. Some exclusions may apply.
Return Window: 30 days from the delivery date.
Return Conditions: Item must be unused, in original condition, with tags and packaging intact. Proof of purchase required.
Return Process: Contact
support@homesteadingshop.com to initiate a return. For defective or incorrect items, return shipping is covered by us.
Restocking Fee: 25% restocking fee applies to returns.
Refunds: Processed after inspection within 3–5 business days. Refunds will be credited to the original payment method.
Damaged or Incorrect Items: Contact us immediately if your item is defective or incorrect. We will cover return shipping costs.
Exchanges: We only offer replacements for defective or damaged items.
Liftgate Service, Curbside Delivery & What to Expect
We understand that freight shipping can be confusing — especially if you’ve never had a large item delivered this way. This page will walk you through exactly how it works, including what a liftgate is, what “curbside delivery” really means, and what to be prepared for when your order arrives.
Why Freight Is Used
Freight shipping is required for large or heavy products — usually those over 120 lbs or oversized dimensions. Unlike standard parcel shipping (UPS/FedEx), freight is handled by a trucking company using semi-trucks.
What is Curbside Delivery?
All of our freight shipments are curbside delivery by default, which means:
- A full-size semi-truck (typically 20 to 53 feet long) will arrive at your location.
- The truck will stop at the end of your driveway or nearest accessible point — not necessarily at your garage or door.
- The driver’s responsibility ends at the curb. It’s your responsibility to unload the item from the truck unless other arrangements are made.
Important: Some extremely large or heavy products are not eligible for residential delivery at all, even with liftgate service. In these cases, you will need to collect your order from the nearest freight terminal or depot. We will notify you if this applies to your order before it ships.
What Is a Liftgate?
A liftgate is a hydraulic platform on the back of a truck that can lower freight from the truck bed to the ground. Not all freight trucks are equipped with one, and it's not guaranteed unless you request it in advance.
If your delivery location does not have a forklift or loading dock, we strongly recommend ordering liftgate service.
- Liftgate fees typically range from $25 to $125, depending on the product or carrier.
- If the truck arrives without a liftgate and you’re unable to unload, you may be charged re-delivery and full liftgate fees.
What Drivers Are (and Aren’t) Required to Do
- Drivers are not required to assist with unloading
- Some drivers may help at their discretion, but this is not guaranteed
- If the truck can safely pull into your driveway and turn around, they may accommodate — but it’s entirely up to the driver
- If your road or driveway is inaccessible to large trucks, you’ll need to meet the driver at the nearest accessible location
Important Notes
- Do not accept or use liftgate service unless you’ve ordered and paid for it — even if the driver says it’s okay. Carriers may charge you $100+ for unauthorized use.
- In some areas, liftgate delivery may be required by the freight company for safety or liability reasons
- If you’re unsure whether you need a liftgate, assume yes unless you have a dock or forklift on-site
Delivery Scheduling
- The carrier will contact you by phone to arrange a delivery appointment
- Typically, you’ll receive a 1–2 day notice and a 3–4 hour delivery window
Before You Sign
Inspect your shipment thoroughly before signing the delivery receipt:
- If there is any damage, note it clearly on the paperwork
- Take photos immediately
- Contact us within 24 hours
Summary
- Freight deliveries are made via large trucks to curbside locations
- Liftgate service is not included unless requested
- Some oversized items are not available for residential delivery and must be picked up at a depot
- Always inspect and document before accepting delivery