Best in 7 days
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Ships within 48 hours · Estimated delivery Jun 11 - Jun 16
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Description
Mack Heater CoreMack Heater Core RD 1 0550 0P, 76R3300, 4379 RD105500 TYPE: Heater Core CORE WIDTH: 1 7 8'' CORE HEIGHT: 8'' FITTING INLET: 5 8'' FITTING OUTLET: 5 8'' CORE LENGTH: 12 11 16'' Can be installed on the following vehicles: MACK MC685 MACK MR600 MACK MR685 MACK MRU600 OE# 4379 RD105500 OEM Numbers RD 1 0550 0P, 76R3300, 4379 RD105500 Specifications Product Condition: New 100% brand new and high quality. The product is the same size as the original part,
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 1155 reviews
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Product Reviews
★★★★★ 5
Very useful for any situation outdoors
Style: KIT
Never really considered the value of this type of notebook, until it proved useful. The carry case has a quality feel to it. It is just about the right size to keep in any bag, from range bags to hiking bags. I like the color and that it includes what I would consider “a complete starter kit”. A waterproof notepad doesn’t make sense until you spend hours collecting data for several pew pews and then a strong wind blows the thing off the bench and into a puddle! Trust me, worth every penny.
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Reviewed in the United States on August 13, 2025
★★★★★ 5
Amazing, durable product!
Style: KIT
I have owned for about 2 years now, and it still works as if it’s brand new! And trust me, I’ve beat the hell out of this thing. LOVE it!
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Great little notebook
Style: COVER
I love these little notebooks. I have a case that they fit in just fine, along with a pencil. I use them primarily for my ham radio hobby for when I go to a park and need to record the contacts that I have made for the log.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Solid
Style: KIT
Waterproof, great for field exercises
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Reviewed in the United States on April 9, 2026
★★★★★ 4
Nice quality but could be better for the price.
Style: COVER
So nice quality but strange dimensions. There is no way to fold a standard 8.5x11" sheet of computer paper to fit neatly in this. So if you want to print out your own documents to take with you in this, this isn't ideal.
Has 2 internal pen slots and one on the outside. Has two business card slots but I wish it had more.
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Reviewed in the United States on January 21, 2026
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