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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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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:
- 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
4.0 ★★★★★
Based on 1418 reviews
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Product Reviews
★★★★★ 5
Amazing
Size: Large, Style: Peanut Butter
Awesome my pitbull loves her toys
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
★★★★★ 5
Amazing for Heavy Chewers!
Flavor Name: REAL Jack Salmon, Size: Puppy (2-Pack)
If you have a dog that destroys every toy in minutes, Benebone is a total game changer. These chews are incredibly durable and actually last—especially for strong or aggressive chewers. They’re made with real flavors like bacon, chicken, and peanut butter, which dogs absolutely love, and you can tell because they keep coming back to it again and again.
What I love most is that they keep my dog busy and satisfied without the mess or smell of traditional bones. They’re also thoughtfully designed with shapes that are easy for dogs to grip and chew comfortably.
That said, like any hard chew, it’s important to supervise and replace it if it gets worn down—but overall, this is one of the best long-lasting chew toys out there.
Highly recommend for anyone with a serious chewer—worth every penny! 💛🐶💛
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Excellent quality chews. Tiny Puppy size is perfect for adult toy breed dogs.
Flavor Name: REAL Bacon, Size: Puppy (2-Pack)
I bought the Tiny Puppy Bacon flavor 2-pack package of these, and my dog and his sister are obsessed with them. They chew on them multiple times every day. They seem to be fairly durable, although I expect they will break down over time, which is okay as it’s a chew. I like that they stay intact, with no chunks breaking off for the dogs to swallow. The dogs do ingest a small amount as the material breaks down, but I always supervise them when they have these, and there haven’t been any problems. It’s difficult to find good chews for toy breed dogs like our 12-pound Shih Tzus, so I was happy to find these. They are pricey, but I believe they are worth it. The dogs love to carry them around, and my little guy even plays with his chew sometimes like it’s a toy.
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Reviewed in the United States on February 20, 2026
★★★★★ 5
Durable, engaging, and dog approved
Flavor Name: REAL Bacon/REAL Maplewood, Size: Puppy Tiny (2-Pack)
These chew toys are great for keeping dogs entertained and engaged, especially for gentle chewers. The quality feels strong and they hold up well compared to many other toys. The real bacon scent keeps dogs interested and coming back to them often. I’ve ordered multiple packs over time for my own dogs and even gifted them to others because they’re so well liked.
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Reviewed in the United States on May 2, 2026
★★★★★ 4
The "Y" is a staple! The other is useless.
Flavor Name: REAL Bacon, Size: Small – 2 Pack
Leaving a 4-star review because she has chewed this "Y-shaped" Benebone almost down to the nubbins. At first she didn't want much to do with it, but something clicked and once she started chewing it, it's become a staple in her chewing repertoire. But the other shape... the double-pull with the lines on it... is apparently not chewable for her. She'll tote it around, but won't really sink her teeth into that one. She's still a puppy, so maybe she'll start on the double-pull shaped one later. But we'll probably hafta get a larger Y-shape in a month or two... that one's totally worth it!
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Reviewed in the United States on February 26, 2026