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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Swap Block Mock Up Cummins 3.9 4BT Engine Block | GF-EJ-CUMMINS-4BTEngine: Cummins 3. 9 4BT Years: 1989 1998 Our patent pending tab and slot version of the mock up block provides accurate mounting positions of engine accessories and bolt ons. Weighs only 26 lbs This unique design is lightweight and comes disassembled for ease of shipping and storage. Precision formed returns on all weight bearing components and tight tolerance slots create a rigid and accurate representation of the Cummins 4BT 3. 9L engine block
- Engine: Cummins 3.9 4BT
- Years: 1989-1998
- Our patent-pending tab-and-slot version of the mock up block provides accurate mounting positions of engine accessories and bolt-ons.
- Weighs only 26 lbs
- This unique design is lightweight and comes disassembled for ease of shipping and storage.
- Precision formed returns on all weight-bearing components and tight tolerance slots create a rigid and accurate representation of the Cummins 4BT 3.9L engine block compared to bolt-together types.
- One tool accomplishes accurate placement of a 4BT Cummins engine into the chassis build of your choice.
- Easily positioned by hand, the days of slinging an engine on a crane in and out of your build are over.
- It's designed to bolt to your transmission while also permitting the attachment of oil pan, motor mounts, header, front timing cover, oil filter housing, and intake.
- Save time and money and work more safely.
- Durable steel construction resists heat from welding, so unlike foam blocks, custom motor mounts can be fabricated right on the block.
- Comes with hardware for exhaust, motor mounts, bellhousing, oil pan, and timing cover.
NOTE: The 4BT was used in commercial vehicles and industrial applications, so some variations to bolt patterns may be seen.?
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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 26 reviews
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Product Reviews
★★★★★ 5
Flattering, Comfortable, and Perfect for Everyday Wear
Size: Large, Color: Black
This Amazon Essentials tiered midi dress has quickly become one of my favorites! The fit is relaxed but still flattering — it flows nicely without clinging, and the tiers give it a light, feminine shape. The fabric is soft, breathable, and easy to wash, making it perfect for warm days or layering with a cardigan in cooler weather.
It’s one of those rare dresses that works just as well for casual outings, errands, or a dinner out. I’ve even worn it to work with sandals and a denim jacket. The length hits just right (mid-calf for me), and it has that effortless, pulled-together look that’s hard to find at this price.
If you love comfy, versatile dresses that make you feel put together with zero effort, this one’s a winner!
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Reviewed in the United States on October 20, 2025
★★★★★ 5
100% cotton dress
Size: Large, Color: Navy, Size: Large, Color: Navy
I really like the fit of this dress. The details are feminine with top ruching and gold button on the neck.
The dress is 100% cotton sateen fabric and is on the thin side and may require a slip if you get a light color. I purchased this dress in navy and black with floral. It has a defined waist and comes to my natural waist. A tiered aline skirt and cap sleeves a cute detail on the trim.
I can dress this up with any color belt to define the waist further.
I purchased a size large and it fits well with a bit of a roomy waist. I think of o got a medium it maybe to small on top and waist.
I got this for $15 on black Friday.
Perfect spring and summer dress. Can be a fall dress with tights and a sweater.
My only criticism of the dress is the tip of the zipper is not sewed in to the dress and it sticks out when you lift your arm. I did stitch the material into the seam and it only took a few minutes.
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Reviewed in the United States on December 2, 2025
★★★★★ 5
Well made
Size: Medium, Color: Navy
Nice dresses . True fit. Light fabric without being see-through.
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Reviewed in the United States on May 12, 2026
★★★★★ 1
Oddly shaped dress
Size: Large, Color: Black
I retuned it because the shape of the dress was little off. I really wanted to like the dress but I didn’t .
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Reviewed in the United States on April 18, 2026
★★★★★ 4
Cute for warm weather, but consider sizing down!
Size: X-Small, Color: Golden Yellow Beige Multi Folk Floral
I liked this dress and probably would have kept it if it fit me. The material is not very thick, but I think thin cotton is ideal for a summer dress anyway. The slightly glossy/shiny feel of the sateen is a bit unusual, but didn't bother me. I LOVE that it has pockets. Just keep in mind that something heavy like a phone will weigh the skirt down and make it sit slightly differently. Can't speak to the long-term durability or how it washes, but the overall construction looked decent - no unraveling seams or glaring quality control issues.
Sadly, it does not seem TTS to me. I am 5'2", 115lb. Bought my usual XS. It hit about mid-shin, so not too long, but it was quite large, especially in the chest and waist. It was less noticeable with the skirt since it is loose and pretty forgiving - if you are bottom-heavy and nervous about sizing down to fit your upper body, I wouldn't worry too much.
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Reviewed in the United States on December 30, 2025