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ARRMA Shock Cap 2 Composite Replacement with O-Rings ARA330665

Model No: ARA330665


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  • Product Type: Shock Cap Set
  • Brand: ARRMA
  • Model Number: ARA330665
  • Quantity: 2 x Shock Cap
  • Material: Tough composite material
  • Included Components: 2 x Shock Cap, 2 x O-ring (11 x 1.5mm)
  • O-Ring Size: 11 x 1.5mm
  • Compatible Shock Sets: ARA330677 and ARA330678
  • Shock Bore Size: 11mm
  • Shock Length Options: 101mm (ARA330677), 115mm (ARA330678)
  • Piston Specification: 2x1.3mm
  • Oil Viscosity: 500cst
  • Compatible Vehicle Scales: 1/10 scale, 1/8 scale
  • Compatible ARRMA Models: BIG ROCK 223S 4x4, BIG ROCK 3S 4x4, GRANITE 223S 4x4, GRANITE 3S 4x4, GRANITE 4x4 (brushed), SENTON 223S DSC 4x4, SENTON 3S 4x4, SENTON 4x4 (brushed), VORTEKS 223S 4x4, VORTEKS 3S 4x4, VORTEKS 2WD, INFRACTION 4x4 1/8, TYPHON 3S 4x4 1/8, TYPHON 4x4 1/8, VENDETTA 3S 4x4 1/8
  • Suspension Type: Alloy shock suspension
  • Features: Precision manufactured, leak-free seal design, crash resistance, consistent fit
  • Spare Part Status: Replacement/spare part

Overview

The ARRMA Shock Cap (2) is an essential spare part for maintaining your RC car's suspension system. These precision-engineered shock caps are designed to fit perfectly with ARRMA alloy shock sets, providing a reliable seal that keeps your shocks functioning at their best. Whether you're a dedicated RC enthusiast running ARRMA 1/10 scale monster trucks, short course trucks, stadium trucks, or 1/8 scale buggies, having quality replacement shock caps on hand ensures your RC vehicle stays in peak condition. These are genuine ARRMA spare parts, meaning you can trust them to deliver the durability and performance your RC car deserves.

Shock caps might seem like a small component, but they play a crucial role in your RC suspension's performance and longevity. A damaged or worn shock cap can lead to oil leaks, reduced shock performance, and potential damage to your shock bodies. The ARRMA Shock Cap (2) set offers peace of mind for RC hobbyists across the UK who demand quality spare parts for their brushless RC cars. Whether you're maintaining a ready to run RTR model or upgrading a competition-grade setup, these replacement caps ensure your shocks maintain their integrity and sealing capability through countless runs and bashings.

Available now at RC Model Shop, these shock caps are perfect for enthusiasts looking to keep their ARRMA RC vehicles in top working order. With their tough composite construction and precision manufacturing, they represent excellent value for maintaining your investment in quality RC equipment.

Key Features

  • Tough Composite Material — These shock caps are moulded from a tough composite material that provides long-lasting performance and increased crash resistance in all conditions, ensuring they withstand the demands of both casual bashing and competitive racing.
  • Precision Manufacturing — Each shock cap is precision manufactured to provide a consistent fit to your shock bodies, eliminating any loose tolerances that could compromise the seal between cap and shock.
  • High-Quality O-Rings Included — Two high-quality o-rings (11 x 1.5mm) are included with each set, ensuring a leak-free seal between the shock cap and shock body that prevents oil loss and maintains optimal shock damping performance.
  • Compatible with Multiple Alloy Shock Sets — These caps are genuine spare parts for ARRMA alloy shock sets ARA330677 (11mm bore, 101mm length, 2x1.3mm piston, 500cst oil) and ARA330678 (11mm bore, 115mm length, 2x1.3mm piston, 500cst oil), making them suitable for a wide range of ARRMA RC models.
  • Two Caps Per Pack — The set includes two shock caps and two replacement o-rings, providing everything you need to service both shocks or maintain spares for future maintenance.

Technical Performance

The ARRMA Shock Cap (2) represents quality engineering designed specifically for ARRMA's suspension systems. Manufactured with precision tolerances, these composite shock caps are engineered to maintain consistent fit and performance across ARRMA's diverse range of 1/10 scale vehicles including the BIG ROCK, GRANITE, SENTON, and VORTEKS series, as well as 1/8 scale models like the INFRACTION, TYPHON, and VENDETTA. The composite material delivers excellent durability whilst remaining lightweight, which is critical for suspension performance. Each cap includes a precision-moulded design that mates perfectly with ARRMA shock bodies, and the inclusion of high-quality 11 x 1.5mm o-rings ensures a completely leak-free seal. These o-rings are the critical component that prevents shock oil loss, which is essential for maintaining damping characteristics across your RC car's suspension. Whether you're running brushless or brushed ARRMA models with 3S, 4S, or even MEGA 665 motor configurations, shock seal integrity remains paramount to consistent handling and performance. The specification of these caps makes them compatible with shocks featuring 11mm bores and either 101mm or 115mm lengths with 2x1.3mm pistons, covering the vast majority of ARRMA 4WD and stadium truck platforms.

What's in the Box

  • 2 x Shock Cap
  • 2 x O-ring (11 x 1.5mm)

Frequently Asked Questions

  • Which ARRMA RC models are compatible with these shock caps? — These shock caps are spare parts for ARRMA alloy shock sets ARA330677 and ARA330678, making them compatible with numerous ARRMA 1/10 and 1/8 scale models including the BIG ROCK 223S, BIG ROCK 3S, GRANITE 223S, GRANITE 3S, GRANITE brushed models, SENTON 223S, SENTON 3S, SENTON brushed models, VORTEKS 223S, VORTEKS 3S, VORTEKS 2WD, INFRACTION, TYPHON 3S, TYPHON brushed models, and VENDETTA 3S models in various configurations (RTR, RTR with battery and charger, etc.).
  • Why would I need replacement shock caps? — Shock caps wear out over time due to repeated expansion and contraction cycles as your RC shocks compress and rebound. They can also crack or break if your RC car crashes or the shock is struck during running. Damaged caps can allow shock oil to leak out, which reduces damping performance and can damage shock internals. Having replacement caps on hand ensures you can quickly restore your shocks to full working condition.
  • Are the o-rings included? — Yes, the ARRMA Shock Cap (2) set includes two high-quality o-rings (11 x 1.5mm). These o-rings are essential for creating the leak-free seal between the shock cap and shock body, preventing oil loss and maintaining proper shock damping characteristics.
  • Will these fit my ARRMA RC vehicle? — These shock caps are specifically designed for ARRMA alloy shock sets with 11mm bores. If your ARRMA vehicle uses shocks compatible with sets ARA330677 or ARA330678, these caps will fit perfectly. Consult your vehicle manual or check your shock specifications to confirm compatibility.
  • How do I know if I need new shock caps? — Signs that you need replacement shock caps include visible cracks or damage to the current caps, oil leaking from around the shock body, loss of damping performance, or if you've removed the caps for shock servicing and want to replace them with fresh components.
  • Can these be used on both brushless and brushed ARRMA models? — Yes, these shock caps are universal across ARRMA's lineup and work with brushless and brushed vehicles alike. Shock suspension design is identical between brushless and brushed ARRMA models of the same series.

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 Shock Cap (2) 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.

We want to make sure your delivery goes smoothly, so here are some important details about our service:

  • For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
  • Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
  • Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
  • If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
  • We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
  • As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
  • If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
  • For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.