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Description
Ultima | Rear Shock Absorber HD 2WD | Ford Ranger PK Mazda BT-50 2.5L 2005–2011 | 400579Ultima Rear Heavy Duty Shock Absorber (Single) for Ford Ranger PJ PK & Mazda BT 50 2WD 20052011 This Ultima Rear Heavy Duty Shock Absorber (400579) is a gas charged replacement component from the robust 40 Series, engineered specifically for the rear suspension of the Ford Ranger (PJ PK) and Mazda BT 50 Bravo 2WD models. Designed for light commercial use, it provides superior bump and rebound control, ensuring consistent handling, stability, and load
Ultima Rear Heavy Duty Shock Absorber (Single) for Ford Ranger PJ/PK & Mazda BT-50 2WD 2005–2011
This Ultima Rear Heavy Duty Shock Absorber (400579) is a gas-charged replacement component from the robust 40 Series, engineered specifically for the rear suspension of the Ford Ranger (PJ/PK) and Mazda BT-50/Bravo 2WD models. Designed for light commercial use, it provides superior bump and rebound control, ensuring consistent handling, stability, and load-bearing performance essential for utes operating in commercial or touring applications.
IMPORTANT FITMENT NOTE: This shock absorber is for **Rear Wheel Drive (2WD)** models only, typically those with the 2.5L engine. It is NOT compatible with 4X4 or 3.0L models, which use a different, longer shock.
Warranty
3 year / 100,000 km
Why Ultima?
Ultima 4X4 shocks are trialed and tested to withstand harsh conditions. They feature a 35mm Big Bore design, double-chromed 16mm piston rods, and low-pressure nitrogen gas charging to reduce oil foaming and fade, delivering reliable performance and control.
Key Features:
- Application: Rear Shock Absorber (Heavy Duty) for Ford Ranger & Mazda BT-50 2WD 2.5L 2005–2011
- Fitment: Specific to **2WD** models with the **2.5L engine**. Does not fit 4x4 or 3.0L variants.
- Series: Ultima 40 Series HD – providing improved impact absorption and better ride quality over standard OE units.
- Design: Gas-charged twin-tube construction for consistent, fade-free dampening.
- Mounting: Eye Top / Eye Bottom (Metal Sleeved Rubber Bushing).
- Unit of Measure: Sold individually (1 piece) – 2 required per vehicle.
Technical Specifications
- Brand: Ultima
- Part Number (SKU): 400579
- System Type: Shock Absorber (Heavy Duty 2WD)
- Piston Rod Diameter: 16 mm
- Position: Rear (Suits Left or Right)
- Vehicle Models: Ford Ranger (PJ/PK) & Mazda BT-50/Bravo (2WD 2.5L)
- Years: 2005–2011
- Use: Ute / Light Commercial Vehicle
Vehicle Fitment Information
| Make | Model | Series | Years | Position |
|---|---|---|---|---|
| Ford | Ranger | PJ / PK (2WD 2.5L Only) | 2006–2011 | Rear (Left/Right) |
| Mazda | BT-50 / Bravo | B2500 (2WD 2.5L Only) | 2005–2011 | Rear (Left/Right) |
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 309 reviews
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Product Reviews
★★★★★ 5
An Actual Nice Chair for a Decent Price. +2 for the Tool.
Color: Black Grey
Welp, My old chair finally broke, so It was time for a new one. I ended up coming across this chair here, and I couldn't really find anyone talking about it online. I decided to give it a shot since it was on a good sale for Christmas, going down to 99$. I'm going to be honest, I am pleasantly surprised. The cushioning for it is a little firm, but that is perfect for me. Its pretty average when it comes to office chairs, but having the added lower back support is a great touch. I have no complaints about it.
The one thing that I am actually really happy about isn't on the chair. Don't get me wrong, over the week I have been using it, It has been nothing but great. That thing is the actual tool it came with. Its a basic Allen key, but the top of it is a molded handle instead of a "L" piece of metal. It made the already easy process of putting together this chair even better. Even after this chair has ran its course like all other chairs, I'm going to still use this tool.
So yeah, I think 5 - stars pretty accurately describes how I feel about my chair.
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Reviewed in the United States on January 2, 2026
★★★★★ 5
COMFY CHAIR GOOD SUPPORT
Color: Dark Brown
So I needed an office chair because the one that I had wasn't really helping my back any. And it just didn't have enough cushion on the chair because when you want to sit for hours at your desk you want to be comfortable. So I took a chance on buying this chair. I thought the color was good and the price was right but I was still a little nervous because it said put together. So I got it right away only took 3 days. And the directions for pretty easy there were a couple of spots that I think we're out of order because you had to kind of play around with the screws going into the holes from the arms but I think if I were to get another chair like this I would probably do it my way because it's pretty self-explanatory but I followed the directions that came with the chair. And hey I'm 65 years old and I put this chair together. It's nice it's sleek and oh my God is it comfortable!!! Right where my lower back and sciatic is I get the support and it just feels good and I know that if I have to be at my desk for 3 or 4 hours I'm going to be comfortable. I highly highly recommend getting this chair.
The only issue that I had was the driver did not leave it on my porch. I had ordered a Vizio TV a couple months ago and the driver brought it up to my porch. So I just had to go out and take two steps bring it into the house I really appreciated that.
This driver didn't even come through the gate and there is no signs of any dogs because there aren't any. So this driver just left this giant heavy box it was about 35 lb in front of the garage where it was very visible from the road. And I had a dragon to my front door it was heavy I did not like that at all. But it wasn't damaged or anything and I do love the chair. I just don't like what the driver did.
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Reviewed in the United States on November 3, 2025
★★★★★ 5
Great sturdy chair and beautiful color
Color: White
I love this chair. I bought it for my home office. It is beautiful, sturdy and very comfortable. I'm not good at all with assembling even basic things but I would say that this was relatively pretty simple for someone like me to put together. Good price and good product.
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Reviewed in the United States on April 3, 2026
★★★★★ 4
Reliable, Comfortable, and Good-Looking Chair — I Keep Coming Back to It
Color: White
This is my fourth time purchasing this Amazon Basics mid-back office chair, which says a lot about its overall value. It looks clean and modern, fits well in a home office, and is genuinely comfortable for daily use. I typically get about a year and a half out of each one, which feels reasonable given the price point and materials.
Out of the box, the chair is easy to assemble and immediately comfortable. The padding is supportive, the armrests are well positioned, and the faux leather gives it a more upscale appearance than many chairs in this category. It rolls smoothly, swivels easily, and works well for long computer sessions without causing back or shoulder fatigue.
That said, this is not a lifetime chair. After extended use, the cushioning and structure do begin to wear, and that’s usually when I replace it. Still, considering the comfort, appearance, and cost, it remains one of the best value office chairs I’ve found — which is why I keep buying it again.
Pros:
• Comfortable padding and good mid-back support
• Clean, modern appearance that looks great in an office
• Smooth rolling and stable base
• Easy assembly
• Excellent value for the price
Cons:
• Durability is moderate; expect replacement after about 1½ years
• Not designed for long-term heavy-duty use
Verdict:
If you want a comfortable, attractive, and affordable office chair that performs well for daily use, this is a strong choice. It may not last forever, but its comfort and value make it easy to recommend — and easy to repurchase.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Highly recommend
Color: Black
Very sturdy, the cushions make it super comfortable. The size and ease of movement are perfect. Assembly was super easy. A very quiet chair. Wonderful all around value.
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Reviewed in the United States on February 28, 2026
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