JavaScript seems to be disabled in your browser.

You must have JavaScript enabled in your browser to utilize the functionality of this website. Click here for instructions on enabling javascript in your browser.

ARRMA 1/10 BIG ROCK 4X4 V3 3S BLX Brushless Monster Truck RTR, Black (ARRMA 4312V3 | ARA4312V3)

Top Seller

Model: ARRMA 4312V3
Dist. #: ARA4312V3   SKU: ARA4312V3

Customer Reviews: Rated 5.0 stars 5 of 5 (1 Review)

Out of stock

List Price:  $399.99
Price:  $349.99
You Save:  $50 (13%)

This item will earn you 350 reward point(s).
350 points = $7.00 off your next order. Learn More

Updated on Jun 14, 2025 10:07:01 PM

1/10 BIG ROCK 4X4 V3 3S BLX Brushless Monster Truck RTR, Black...


.mediaFeature [cushioning:2px 0;]
.safeTech [background:#6f92a5;float:left;padding:20px 0;font-size: 17]
.safeTech, .safeTech h4 [color:#fff;]

.aligncenter [
text-align: center;
]



Features

More powerful chassis and kept hinge pin plates

Steering with more clearance for stones

Castellated slipper pad and moving equipment mesh

1.1 inch wider position for better handling and slamming

Plastic locknut for slipper

23T Spline servo saver

37T 1.35Mod diffs with silicone O-rings

Power Module with moving equipment mesh and enhanced dirt management

Rubber shielded bearings throughout
Oil-filled shocks with silicone O-rings

Wider arms front and rear

Body with matte black surface

Front and rear bumpers with matte black surface

Tough black multi-spoke wheels with matte black surface

Vented multi-terrain dBoots® RAGNAROK™ tires

BLX100 2S/3S waterproof* ESC

*For information on waterproof requirements, describe the guideline manual.

IC5™ adapters (EC5™) compatible

Signature easy-access modular style

Easy-access power module

Easy-access electronics module

Easy-access diff module removal front and rear

Double wishbone suspension front and rear

Metal-geared differentials

Adjustable flight height

Adjustable body installs

Adjustable turnbuckles

High-speed center driveshaft assistance

Wheelie Bar

2-year minimal warranty (see website for information)

50+ MPH (80+ km/h) speed possible in optimal driving conditions on THREE LiPo





Overview
A great step-up from brushed slamming, the 1/10 scale ARRMA® BIG ROCK™ TEAM TAXI 4X4 THREE BLX ready-to-run monster truck delivers a thrilling combination of ARRMA® toughness, street truck style and 50+ miles per hour speed capability. Developed on the effective 4X4 BLX platform, its accuracy aluminum, tough steel and composite products come together for an easy-to-maintain, super-durable vehicle style that’s now been updated to more boost the monster truck’s excellent efficiency and durability.
The BIG ROCK™ 4X4 THREE BLX is CREATED FAST, CREATED TOUGH — built for amazing slamming speeds and extreme, all-terrain sturdiness. New includes that boost its unstoppable efficiency consist of a stronger chassis and kept hinge pin plates; guiding with more clearance for stones; a castellated slipper pad and moving equipment mesh; longer suspension arms for a 1.10 inch boost in width; and rubber-shielded bearings throughout.
It also now consists of a Spektrum™ SLT3™ transmitter and SLR300 receiver. The transmitter is ergonomically developed for long periods of fatigue-free slamming and has a foam wheel for exact fingertip control, plus an enhanced hand grip and trigger feel. New bashers will be able to set throttle limitations at 50% or 75% until they are all set to utilize the full speed potential. The SLT3™ works with Method® SLT™ receivers to run other RTR automobiles you may own, and consists of a third channel to control optional features such as lights and winches on designs that have them.
ARRMA® now powers the BIG ROCK™ 4X4 THREE BLX with a brushless system featuring its BLX100 ESC and the Spektrum™ Firma™ 3200Kv brushless motor. The combination provides extraordinary torque, velocity and speed. The transmission and chassis are ruggedly crafted to make the most of the electronics’ power.
It has the innovative modular style perfected by ARRMA® engineers for easy element access and maintenance. The power module, with enhanced dirt management, includes the motor with ARRMA® heatsink and cooling fan, plus motor plate, slipper clutch assembly and equipment cover. The power module can be detached from the chassis as a complete system by removing simply one screw. With the power module eliminated, the slipper clutch can be reached easily for modifications by securing three screws that attach the equipment cover. The equipment ratio can be finely tuned as the power module now uses a moving motor mesh design.
A two-piece molding screwed to the truck’s chassis serves as its electronics module, containing a water resistant receiver box, servo mount and ESC tray. The SLR300 receiver installs inside the receiver box for defense from dirt and moisture. The ultra-compact ESC is screwed to the top of the module, enabling quick access to the on/off switch, while the servo installs to the side. All three parts can be removed together, rapidly and easily.
The differential module houses each differential system in an ingenious yoke style. Just eight screws require to be removed to release the front and rear yokes. The power module can then be detached, enabling you to pivot the gearbox cases for differential access. The BIG ROCK™ 4X4 THREE BLX RTR comes brushless-ready with 37T 1.35mod diffs with silicone O-rings. The large gears can stand up to big torque, and internal metal gears have been selected for reliability during extreme bashing.
Its full-time 4WD transmission uses strong front, rear, and centerline telescopic driveshafts that can’t be lost during heavy effects, unlike dogbones. A basic, reputable, responsive guiding assembly matches the ultra-reliable drive system and includes a servo horn with integrated servo saver. The BIG ROCK™ 4X4 THREE BLX RTR consists of the waterproof Spektrum™ SPMS651 metal-geared digital servo for 15% more torque than the previous version’s ADS-7M servo.
The self-bleeding, oil-filled shocks, now with silicone O-rings, utilize an attempted and evaluated, coil-over style for simple maintenance and incredible handling. Their ingenious rod-end has a molded-in spring perch for additional toughness. Prolonged height dirt defenders and a close-fitting body limitation the amount of dirt and particles that can enter into the chassis tub. Front and rear bumpers use defense against impacts.
Accented by matte black front and rear bumpers and wheels, the BIG ROCK™ 4X4 THREE BLX truck’s long, scale Team Cab body marks the epitome of street style. With the consisted of dBoots® RAGNAROK™ MT tires, you’ll take it on the run over dirt tracks, routes and even muddy courses. An adjustable wheelie bar comes as basic, letting you take pleasure in a little stunt fun along the way.





Needed to Complete

2S LiPo or THREE Hardcase LiPo Battery

Compatible Charger

LiPo Safe Charging Bag

(4) AA Batteries

What remains in the Box?

(1) ARRMA® BIG ROCK™ 4X4 THREE BLX 1/10 Scale 4WD Electric Beast Truck RTR

(1) BLX100 2S/3S Waterproof* ESC

(1) Spektrum™ Firma™ 3660 3200Kv Brushless Motor

(1) Spektrum™ 2.4GHz SLT3™ 3-Channel Transmitter

(1) Spektrum™ SLR300 Receiver

(1) Spektrum™ SPMS651 Waterproof* Metal-Geared Digital Servo

(1) Item Manual

*For information on waterproof requirements, describe the user's manual.







Spektrum 3-Channel SLT3 2.4GHz radio and SLR300 Water resistant* Receiver

Spektrum™ 3-Channel SLT3™ 2.4GHz radio and SLR300 Waterproof* Receiver
Quick action SLT™ protocol

Foam wheel

Enhanced grip and trigger feel

Enhanced wheel and trigger force

2-way thumb switch third channel

50% and 75% Throttle mode (for beginners)

Method® SLT™ receiver compatible

 

Spektrum SPMS651 Metal-Geared Digital Servo

Spektrum™ SPMS651 Metal-Geared Digital Servo

101 oz-in (7.27 kg-cm) @ 6V

15% more torque than the previous ADS-7M servo for enhanced steering feel

Water resistant*

*For information on waterproof requirements, describe the user's manual.

 





Spektrum Firma 3660 3200Kv brushless motor with Safe D pinion and ARRMA heatsink and cooling fan

Spektrum™ Firma™ 3660 3200Kv brushless motor with Safe D pinion and ARRMA® heatsink and cooling fan
 

Strengthened Chassis

Strengthened Chassis
More powerful chassis and kept hinge pin plates
 





Larger pull tab on power module

Larger pull tab on power module

 

Castellated slipper pad and moving equipment mesh

Castellated slipper pad and sliding gear mesh
 





Rubber shielded bearings

Rubber shielded bearings

 

Redesigned Steering

Redesigned Steering
Steering with more clearance for stones.
 





Harder brushless all set transmission

Harder brushless all set transmission
Metal input spline moulded into composite equipment. Exact same gears as the ARRMA FOUR.
 

Sealed Wheels & Vented Tires

Sealed Wheels & Vented Tires
Stops dirt getting in and enables water to get away.
 





dBoots RAGNAROK MT tires

dBoots® RAGNAROK™ MT tires
With the consisted of dBoots® RAGNAROK™ MT tires, you’ll take it on the run over dirt tracks, routes and even muddy courses.
 

Silicone O-rings

Silicone O-rings
Oil-filled shocks with silicone O-rings
 




Wider Position

Wider Position
1.1 inch wider position for better handling and slamming
 

Proven Power Bundle

Proven Power Package
Incredible power and efficiency.
 





Easy-access power module

Easy-access power module
Detaches from chassis as a complete system by removing one screw.
Contains motor, motor plate, slipper clutch assembly and equipment cover.

 

Easy-access electronics module

Easy-access electronics module
Two-piece molding screwed to the chassis includes a water resistant receiver box, servo mount, and ESC tray.
Receiver installs inside sealed module for defense from dirt and moisture.
ESC screws to the top for easy maintenance and switch access.
Servo installs on the side for quick servicing.

 





Metal-geared differentials

Metal-geared differentials
Big gears can stand up to big torque, and internal metal gears have been selected for reliability during extreme bashing.
Easy-access front and rear diff module removal.

 

Proven tough composite shock towers

Proven tough composite shock towers

 



Frequently Bought Together

ARRMA 1/10 BIG ROCK 4X4 V3 3S BLX Brushless Monster Truck RTR, Black
+
Spektrum 5000mAh 3S 11.1V 50C Smart LiPo Hardcase; IC5
+
Common Sense RC Lectron Pro 11.1V 5200mAh 50C Lipo Battery with EC5 Connector
This Item: ARRMA 1/10 BIG ROCK 4X4 V3 3S BLX Brushless Monster Truck RTR, Black
$349.99
Spektrum 5000mAh 3S 11.1V 50C Smart LiPo Hardcase; IC5
$82.99
Common Sense RC Lectron Pro 11.1V 5200mAh 50C Lipo Battery with EC5 Connector
$72.09

Total Price: $505.07

Add All Three To Cart
Rated 5.0 stars
5 out of 5 stars
5 star  
  (1)
4 star  
  (0)
3 star  
  (0)
2 star  
  (0)
1 star  
  (0)

Share your thoughts with others

Write a Customer Review
  
  

Rated 5 stars Pretty fast with 3s
By Ricardo S on June 25, 2021   Verified Purchase

Excellent build quality, it is really powerful with 3s lipo. It's definitely built for performance off road. Radio is ok range is decent, other electronics are pretty good.

Was this review helpful to you?
  
Thank you for your feedback.

Customers who bought this product also purchased

Visual Parts Finder