Redcat RER43604 vs RER39776: Which Part Fits Your Build?
By Redcat Racing | Published: 2026-11-03
Category: Comparisons
Compare Redcat RER43604 screws and RER39776 Scout II body. See fitment for VERTEX 10 and ASCENT 18 SCOUT II BRUSHLESS, plus the trade-offs before you buy.
Quick answer
These parts don't compete for the same slot: RER43604 is a pack of eight 3 × 32 mm button-head hex screws for VERTEX 10 and VERTEX 10 WIDE, while RER39776 is a red replacement body for the ASCENT 18 SCOUT II BRUSHLESS. Choose RER43604 if you're replacing fasteners on a VERTEX 10; choose RER39776 if you need to refresh the shell on your ASCENT 18 SCOUT II BRUSHLESS.
Why these parts aren't interchangeable
RER43604 and RER39776 serve different functions on different vehicles. The screw set is a hardware item for the VERTEX 10 platform, while the body is a cosmetic and protective shell for the ASCENT 18 SCOUT II BRUSHLESS. Buying the wrong one won't get you closer to a repair—it will just leave you with a part that doesn't address your actual need.
The trade-off: consumable hardware vs. a single body shell
RER43604 gives you eight screws, so you have spares for multiple fastening points or future maintenance. That's useful if you're already working on a VERTEX 10 and want to keep matching hardware on hand. RER39776, by contrast, is one complete body. It restores the look of your crawler in a single purchase, but it doesn't include any mounting hardware or decals beyond what's supplied—and the catalog doesn't list those extras, so check your existing parts before you rely on them.
What the catalog doesn't tell you
Neither listing specifies thread pitch, head style beyond button-head, or body material thickness. If you're matching an existing screw or checking body clearance, use the published dimensions (3 mm diameter, 32 mm length) and your vehicle's manual as your guide. For the body, confirm you're working on the ASCENT 18 SCOUT II BRUSHLESS—the catalog lists no other fitments.
Trade-offs at a glance
- Fitment scope: RER43604 fits VERTEX 10 and VERTEX 10 WIDE; RER39776 fits ASCENT 18 SCOUT II BRUSHLESS only. Check your model name before ordering—these two parts never overlap.
- What you get: RER43604 is a set of eight screws; RER39776 is one body shell. If you need fasteners, the body won't help, and vice versa.
- Best use case: Choose RER43604 for hardware replacement or spares on a VERTEX 10; choose RER39776 to replace a damaged or worn body on an ASCENT 18 SCOUT II BRUSHLESS.
Product facts
- RER43604: Pack of eight 3 × 32 mm button-head hex machine screws. You get enough screws for several fastening points or future replacements without buying multiple packs.
RER43604 - RER39776: Red direct replacement body for the ASCENT 18 SCOUT II BRUSHLESS. It restores the original look of that specific crawler in one purchase, with no guesswork about color match.
RER39776
Which part should you buy?
Best for
- VERTEX 10 or VERTEX 10 WIDE owners replacing button-head hex screws
- Anyone who wants spare 3 × 32 mm screws on hand for maintenance
Not for
- ASCENT 18 SCOUT II BRUSHLESS owners needing a body shell
- Anyone looking for a complete body replacement rather than hardware
