These super-tough Hinge Pins are the perfect spare part for your RC tool box.
- Part number: Z-AR330381
- Manufacturer: ARRMA
- Product type: Suspension spares - Lower hinge pin
- Diameter: 4mm
- Length: 67.5mm
- Material: Super-strong steel
- Quantity per pack: 2
- EAN: 5052127007986
- Compatible models: C-ARA7615V2T1, C-ARA7615V2T2, C-ARA7816T1, C-ARA7816T2, C-ARA7604V2T1, C-ARA7604V2T2, C-ARA7707V6T1, C-ARA8606V5
Overview
The ARRMA Hinge Pin Lower 4x67.5mm (2) Z-AR330381 represents an essential maintenance component for RC enthusiasts in the UK who demand reliability and durability from their spare parts. These super-tough hinge pins are the perfect addition to your RC tool box, providing the kind of dependable performance that keeps your RC car running smoothly through countless hours of bashful fun and competitive racing. Whether you're piloting a high-performance RC buggy, a rapid RC truck, or any of the compatible ARRMA models listed below, having quality hinge pins in stock ensures you're never sidelined by suspension wear.
For the serious RC car UK enthusiast, suspension maintenance is not optional—it's essential. Hinge pins are critical suspension components that connect the upper and lower suspension arms, bearing the full weight and shock loads of your vehicle during every jump, bash, and high-speed run. The ARRMA Hinge Pin Lower 4x67.5mm delivers the rugged engineering you'd expect from a manufacturer renowned for producing ready to run RC vehicles that can handle extreme conditions. This pack of two hinge pins ensures you have a spare on hand, reducing downtime and keeping your RC adventures uninterrupted.
ARRMA has built its reputation by understanding what RC bashers and racers actually need: components that won't fail when you need them most. These hinge pins exemplify that philosophy with their super-strong steel construction and precision engineering. From the moment you unbox them, you'll notice the quality—they're engineered to withstand the rigorous demands of modern high-performance RC cars, whether you're running on tarmac, concrete, or off-road terrain.
Key Features
- Super-strong steel material construction — The hinge pins are manufactured from premium steel that delivers long-lasting durability, resisting bending and wear even under the extreme loads imposed by aggressive driving and high-impact landings typical of RC car enthusiasts in the UK.
- 4mm diameter specification — The precise 4mm diameter provides the exact fit required by ARRMA suspension systems, ensuring proper articulation and smooth movement through the full range of suspension travel without any binding or excess play.
- 67.5mm length — This carefully engineered length allows the hinge pin to span the suspension geometry of compatible ARRMA models, maintaining proper alignment and geometry during compression and extension cycles.
- Two-pack quantity — Each pack includes two complete hinge pins, giving you a replacement set and a critical spare to keep in your RC spares box for uninterrupted bashful fun.
- Suspension spares classification — Classified as suspension spares, these components are fundamental to maintaining the handling characteristics and responsiveness of your ready to run RC car.
Technical Performance
The ARRMA Hinge Pin Lower 4x67.5mm (2) represents precision engineering in its purest form. Manufactured from super-strong steel, these hinge pins deliver the kind of performance consistency that serious RC car UK drivers demand. The 4mm diameter and 67.5mm length combination is specifically engineered for ARRMA suspension systems, ensuring perfect fitment and optimal suspension kinematics. Steel construction provides outstanding strength-to-weight ratio, which is critical because hinge pins must support the entire vehicle weight whilst allowing unrestricted movement. During aggressive cornering, landing from big jumps, and rapid directional changes—the scenarios where RC bashers really test their vehicles—these hinge pins maintain their integrity and continue to deliver precise suspension articulation. The material composition resists fatigue cracking that can develop from repeated shock loading, a common failure mode in lesser-quality aftermarket hinge pins. For drivers running their ARRMA RC truck or RC buggy hard, these pins represent an investment in reliability that pays dividends through extended component lifespan and consistent handling performance lap after lap, bash after bash.
What's in the Box
- 2 x Hinge Pin Lower - 4x67.5mm
Compatible ARRMA Models
The ARRMA Hinge Pin Lower 4x67.5mm (2) is specifically engineered for use with the following ARRMA ready to run RC vehicles:
- ARRMA Infraction 6S BLX - Blue (C-ARA7615V2T1)
- ARRMA Infraction 6S BLX - Silver (C-ARA7615V2T2)
- ARRMA 1/7 LIMITLESS 8S AVC 4X4 RTR BLX Street Speed, Red/Black (C-ARA7816T1)
- ARRMA 1/7 LIMITLESS 8S AVC 4X4 RTR BLX Street Speed, White/Blue (C-ARA7816T2)
- ARRMA MOJAVE 6S V2 BLX - Green/Black (C-ARA7604V2T1)
- ARRMA MOJAVE 6S V2 BLX - Red/Black (C-ARA7604V2T2)
- ARRMA 1/7 TALION 6S EXB 4X4 RTR Speed Truck, Black (C-ARA7707V6T1)
- ARRMA Typhon 6S V5 BLX (C-ARA8606V5)
This broad compatibility across multiple ARRMA models—from high-speed street machines to full-size 1/7 scale speed trucks—demonstrates how fundamental and universal this suspension component is to the ARRMA product line.
Why Choose Hinge Pin Spares?
Hinge pins are among the most commonly replaced suspension components in RC cars because they're subject to constant stress and repeated shock loading. Every jump landing, every hard cornering session, and every aggressive bash session places loads on the hinge pins. Over time, the constant flexing and impact forces can cause wear, bending, or cracking. By keeping ARRMA Hinge Pin Lower 4x67.5mm (2) units in stock, you eliminate downtime waiting for spare parts to arrive. You can swap out worn pins in minutes and get straight back to driving. This is especially important for competitive racers who need their RC car in perfect condition for events, and for weekend bashers who want maximum track or field time without interruptions.
Frequently Asked Questions
- How do I know when my hinge pins need replacing? — Hinge pins may need replacement if you notice excessive play in your suspension, uneven suspension movement between left and right sides, bent or cracked pins visible upon inspection, or if your RC car exhibits handling changes after impacts. Regular inspection of suspension components during maintenance is recommended for serious RC enthusiasts.
- Will these fit my ARRMA RC car? — These lower hinge pins are specifically designed for ARRMA vehicles listed in the compatibility section above. Always verify your model number before purchasing to ensure correct fitment. The 4x67.5mm specification is the standard lower hinge pin size for most ARRMA 6S and 8S models.
- Why should I buy genuine ARRMA hinge pins instead of aftermarket alternatives? — Genuine ARRMA components are engineered and tested to work perfectly with ARRMA vehicles, ensuring proper fit, suspension geometry, and longevity. Using manufacturer-approved parts maintains your vehicle warranty and guarantees compatibility with your ready to run RC car.
- How long do hinge pins typically last? — The lifespan of hinge pins depends heavily on driving style, maintenance, and terrain. Aggressive bashing and frequent jumping will wear pins faster than casual driving. The super-strong steel construction of ARRMA pins provides excellent durability, but regular inspection and replacement as needed is part of responsible RC car ownership.
- Are these suitable for beginners? — These are suspension maintenance parts suited for anyone who owns an ARRMA vehicle, regardless of experience level. Beginners should learn basic suspension maintenance as part of responsible RC car ownership. Replacing hinge pins is a straightforward task that teaches valuable skills about RC vehicle maintenance.
- What tools do I need to replace hinge pins? — Replacing hinge pins typically requires basic hand tools including a hex key set and possibly a small punch or removal tool specific to your model. Consult your ARRMA vehicle's instruction manual for detailed replacement procedures and recommended tools.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ARRMA Hinge Pin Lower 4x67.5mm (2) Z-AR330381 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
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