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Performance M

ECS Tuning BMW S54 Valve Clearance / Valve Lash Shim Kit with Gaskets & Feeler Gauge - Cam Shim Tool 83300493743 - E46 M3, Z3 M, Z4 M (E85/E86) - Shim-Under-Bucket Tappet Service Set - S54B32 Rocker Cover & Plug Tube Seals

ECS Tuning BMW S54 Valve Clearance / Valve Lash Shim Kit with Gaskets & Feeler Gauge - Cam Shim Tool 83300493743 - E46 M3, Z3 M, Z4 M (E85/E86) - Shim-Under-Bucket Tappet Service Set - S54B32 Rocker Cover & Plug Tube Seals

£275.00
£275.00
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Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.

Precision valvetrain service kit for BMW S54 engines

Restore crisp throttle response, smooth idle and peak power with this comprehensive S54 tappet clearance bundle. Engineered for home mechanics and pros alike, this kit brings workshop-level accuracy to your driveway, helping you protect your high-revving M straight six and keep it singing to the redline.

Ideal for routine maintenance, track-day prep or curing top-end tick, this complete shim-under-bucket solution gives you everything required to set clearances correctly and keep your S54B32 happy. We rate it highly in our own workshop and our customers love the results for reliability and performance.

What’s included

  • Full assortment of bucket shims for accurate tappet clearance
  • Official-type installation tool 83300493743 for shim handling and setup
  • Rocker cover seal set to prevent oil misting and leaks
  • Spark plug tube seals for a clean, dry plug well area
  • Replacement grommets for a fresh, secure top cover fit
  • Copper sealing rings for dependable, long-lasting sealing
  • Feeler blade gauge set for precise measurement of lash

Why choose this S54 clearance kit

  • Protects cams, followers and buckets by setting correct lash
  • Helps recover lost power and improves drivability
  • Saves significant garage labour costs by enabling a DIY service
  • All-in-one package, no last-minute parts runs
  • Quality components chosen for durability and repeatable accuracy

Suitable for

BMW M3 E46 with S54 engine, BMW Z3 M with S54 engine, BMW Z4 M E85 Roadster with S54 engine.

Service interval

BMW advises inspection and clearance setting roughly every 30k miles. Perfect for preventative maintenance on road cars and essential for hard-driven or track-focused builds.

Part number

Included special tool: 83300493743.

Fitting and support

Want it installed by specialists who know these motors inside out? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a tailored quote.

Order this complete S54 valvetrain maintenance bundle today to safeguard your engine, maximise performance and enjoy that iconic M-power soundtrack with confidence.

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