RockShox Monarch B1, C1, D1 Full Service Kit - 11.4118.038.000
RockShox

RockShox Monarch B1, C1, D1 Full Service Kit - 11.4118.038.000

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OEM RockShox full service kit (11.4118.038.000 / RS-SVC-A1) for Monarch B1RL, C1 R, RT and RT3 (2014+). Contains factory-grade seals, foam rings and O-rings to renew damping performance and stop leaks.

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Product Details

Overview & Technology

Factory replacement parts for RockShox Monarch rear shocks — this kit (manufacturer part 11.4118.038.000, SRAM ID RS-SVC-A1) restores the internal sealing and wiper systems on Monarch B1RL, C1 R, RT and RT3 models from 2014 onwards. The components are manufactured to RockShox tolerances so you get the same fit and function as the original items. The kit uses high-grade nitrile (NBR) rubber seals and open-cell polyurethane foam rings where required, plus precision O-rings and replacement dust wipers. Those materials provide the right combination of durability, low friction and resistance to grime and oil — which translates to consistent damping, reduced friction and longer service intervals when installed correctly.

Key Features & Benefits

This full service kit focuses on the wear items that most commonly cause a tired-feeling shock: dust wipers and seal assemblies that pick up grit from the linkage, foam rings that absorb oil and keep internals lubricated, and O-rings that maintain pressure boundaries. Replacing these parts brings back a smooth, consistent stroke and prevents oil migration that leads to spongy or inconsistent damping. • OEM-quality seals: Direct-fit dust seals and guide rings engineered for the Monarch damper geometry. • Foam rings & O-rings: Restores internal lubrication control and pressure sealing. • Low-friction materials: Reduces stiction for crisper initial stroke and better small-bump sensitivity. • Small, lightweight pack: Ships compactly (5" x 5" x 0.5", 0.1 lb) — ideal for home mechanics and pro shops.

Fit, Compatibility & What's Included

This kit is specified for Monarch B1RL, C1 R, RT and RT3 models from 2014 onward. Confirm compatibility by checking your shock's model stamping and matching the SRAM Model ID RS-SVC-A1 or RockShox part number 11.4118.038.000. It’s designed for rear shocks in the Monarch family — it is not a universal shock kit. The kit typically contains OEM dust wipers, seal assemblies, foam rings and O-rings sized for the damper and air can interface. Note: the kit is focused on sealing hardware — damping fluids, suspension grease and any specialty oils are generally sold separately. If you're unsure which fluids your shock needs, follow RockShox service documentation or contact a RockShox-authorized service center.

Who This Kit Is For

This service kit is for trail and all-mountain riders who want to maintain peak rear-shock performance, plus home mechanics and pro shop techs who perform periodic shock maintenance. If your Monarch shock shows signs of weeping, increased stiction, or degraded small-bump sensitivity, replacing seals and foam rings is the first step to a fresher, more predictable ride. Not comfortable doing a full disassembly? Use this kit with a qualified suspension technician. Proper installation, lubrication and torque are essential — correct servicing keeps the shock reliable and preserves warranty eligibility where applicable.

Key Features

  • ✓ OEM RockShox part 11.4118.038.000 — factory-fit replacement components
  • ✓ Fits Monarch B1RL, C1 R, RT and RT3 rear shocks (2014+)
  • ✓ Includes dust wipers, seal assemblies, foam rings and O-rings
  • ✓ High-grade nitrile seals and open-cell polyurethane foam rings
  • ✓ Restores damping consistency, reduces stiction and stops leaks
  • ✓ Compact, lightweight kit for home mechanics and pro shops

Specifications

Misc 11.4118.038.000 Monarch B1RL C1 R/RT/RT3 2014+

Product Identifiers

Vendor Item # 11.4118.038.000
UPC 710845734502

Frequently Asked Questions

What exactly is included in this service kit?

This RockShox OEM kit supplies the wear items: dust wipers, seal assemblies, foam rings and assorted O-rings sized for the Monarch B1/C/RT damper interfaces. It does not typically include damping fluid or suspension grease, which should be purchased separately if required for a full service.

Which Monarch models and years does it fit?

The kit is specified for Monarch B1RL, C1 R, RT and RT3 models from 2014 onwards. Verify compatibility by comparing your shock’s model ID or the SRAM service code RS-SVC-A1 with the part number 11.4118.038.000.

How often should I service my rear shock?

RockShox guidelines generally recommend a lower-level service (cleaning and lubrication) every ~50 hours of riding and a full damper/air can service every 100–200 hours or at least once per year. Conditions like mud, water and heavy use can shorten these intervals — inspect seals frequently and replace when you see oil weep or excess play.

Can I install this kit at home or should I go to a shop?

If you have the right tools, RockShox service manuals and mechanical experience, you can install the kit at home. However, correct torque, seal lubrication and clean work areas are crucial. If you’re unsure, have a trained suspension tech install the parts to avoid damage and ensure proper performance.

Will replacing these seals stop oil leaks completely?

Replacing worn seals and foam rings usually stops common leaks caused by seal wear or contamination. If there’s physical damage to the shock body, scratches on stanchions, or internal component failure, additional repair work may be required beyond the seal kit.

Is this an official RockShox part?

Yes — this is an OEM RockShox service kit (part number 11.4118.038.000) sold to restore factory sealing and wiper function in compatible Monarch models.

Buying Guide

When buying a rear-shock service kit, prioritize OEM kits like this RockShox set for the best fit and material compatibility. Confirm the kit’s part number against your shock model and year — mismatched seals can cause rubbing or premature wear. Decide whether you will perform a do-it-yourself service or have a pro install the kit: shops provide the correct tools and torque but add labor cost. Also consider buying any required fluids and suspension grease at the same time. A full damper service often needs specific damper oil volumes and air can lubrication — check RockShox service documentation for exact spec and fluid type before starting work.

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